{"id":3205,"date":"2019-11-29T00:51:58","date_gmt":"2019-11-29T00:51:58","guid":{"rendered":"https:\/\/www.thegioimaychu.vn\/blog\/?p=3205"},"modified":"2019-11-29T08:49:59","modified_gmt":"2019-11-29T08:49:59","slug":"5-ung-dung-cua-thi-giac-may-tinh-cho-deep-learning","status":"publish","type":"post","link":"https:\/\/thegioimaychu.vn\/blog\/ai-hpc\/5-ung-dung-cua-thi-giac-may-tinh-cho-deep-learning-p3205\/","title":{"rendered":"5 \u1ee9ng d\u1ee5ng c\u1ee7a th\u1ecb gi\u00e1c m\u00e1y t\u00ednh cho Deep Learning"},"content":{"rendered":"<style>.iblink{color:#975!important;}.iblink:hover{color:orange!important;}<\/style><p><a class=\"iblink\" href=\"\/blog\/tag\/computer-vision\/\">Th\u1ecb gi\u00e1c m\u00e1y t\u00ednh<\/a> (<a class=\"iblink\" href=\"\/blog\/tag\/computer-vision\/\">computer vision<\/a>) \u0111\u1ec1 c\u1eadp \u0111\u1ebfn to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh m\u00f4 ph\u1ecfng t\u1ea7m nh\u00ecn c\u1ee7a con ng\u01b0\u1eddi trong m\u1ed9t b\u1ed9 m\u00e1y phi sinh h\u1ecdc.\u00a0\u0110i\u1ec1u n\u00e0y bao g\u1ed3m vi\u1ec7c ch\u1ee5p \u1ea3nh ban \u0111\u1ea7u, ph\u00e1t hi\u1ec7n v\u00e0 nh\u1eadn d\u1ea1ng \u0111\u1ed1i t\u01b0\u1ee3ng, nh\u1eadn bi\u1ebft b\u1ed1i c\u1ea3nh t\u1ea1m th\u1eddi gi\u1eefa c\u00e1c c\u1ea3nh v\u00e0 ph\u00e1t tri\u1ec3n s\u1ef1 hi\u1ec3u bi\u1ebft \u1edf m\u1ee9c \u0111\u1ed9 cao v\u1ec1 nh\u1eefng g\u00ec \u0111ang x\u1ea3y ra trong kho\u1ea3ng th\u1eddi gian th\u00edch h\u1ee3p.<\/p>\n<p>C\u00f4ng ngh\u1ec7 n\u00e0y t\u1eeb l\u00e2u \u0111\u00e3 tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn trong khoa h\u1ecdc vi\u1ec5n t\u01b0\u1edfng, v\u00e0 v\u00ec th\u1ebf, ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1eeba nh\u1eadn nh\u01b0 m\u1ed9t \u0111i\u1ec1u \u0111i\u1ec1u hi\u1ec3n nhi\u00ean.\u00a0Trong th\u1ef1c t\u1ebf, m\u1ed9t h\u1ec7 th\u1ed1ng cung c\u1ea5p kh\u1ea3 n\u0103ng th\u1ecb gi\u00e1c m\u00e1y t\u00ednh \u0111\u00e1ng tin c\u1eady, ch\u00ednh x\u00e1c v\u00e0 trong th\u1eddi gian th\u1ef1c l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 \u0111\u1ea7y th\u00e1ch th\u1ee9c v\u1eabn ch\u01b0a \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n m\u1ed9t c\u00e1ch \u0111\u1ea7y \u0111\u1ee7.<\/p>\n<p>Khi c\u00e1c h\u1ec7 th\u1ed1ng n\u00e0y tr\u01b0\u1edfng th\u00e0nh, s\u1ebd c\u00f3 v\u00f4 s\u1ed1 \u1ee9ng d\u1ee5ng d\u1ef1a v\u00e0o th\u1ecb gi\u00e1c m\u00e1y t\u00ednh nh\u01b0 m\u1ed9t th\u00e0nh ph\u1ea7n ch\u00ednh. Nh\u1eefng v\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh \u0111\u00f3 l\u00e0 xe h\u01a1i t\u1ef1 l\u00e1i, robot t\u1ef1 \u0111\u1ed9ng, m\u00e1y bay kh\u00f4ng ng\u01b0\u1eddi l\u00e1i, thi\u1ebft b\u1ecb h\u00ecnh \u1ea3nh y t\u1ebf th\u00f4ng minh h\u1ed7 tr\u1ee3 ph\u1eabu thu\u1eadt v\u00e0 c\u1ea5y gh\u00e9p ph\u1eabu thu\u1eadt ph\u1ee5c h\u1ed3i th\u1ecb l\u1ef1c c\u1ee7a con ng\u01b0\u1eddi.<\/p>\n<h2>M\u1ed9t v\u1ea5n \u0111\u1ec1 ph\u1ee9c t\u1ea1p v\u00e0 kh\u00f3 kh\u0103n<\/h2>\n<p>M\u1eb7c d\u00f9 th\u1ecb gi\u00e1c m\u00e1y t\u00ednh h\u1ee9a h\u1eb9n r\u1ea5t l\u1edbn trong t\u01b0\u01a1ng lai, nh\u01b0ng n\u00f3 mang theo m\u1ed9t s\u1ef1 ph\u1ee9c t\u1ea1p v\u1ed1n c\u00f3 v\u00e0 lu\u00f4n l\u00e0 th\u00e1ch th\u1ee9c \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh.\u00a0M\u1ed9t ph\u1ea7n c\u1ee7a s\u1ef1 ph\u1ee9c t\u1ea1p l\u00e0 do th\u1ef1c t\u1ebf th\u1ecb gi\u00e1c m\u00e1y t\u00ednh kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t nhi\u1ec7m v\u1ee5 duy nh\u1ea5t.\u00a0Thay v\u00e0o \u0111\u00f3, n\u00f3 l\u00e0 m\u1ed9t chu\u1ed7i c\u00e1c nhi\u1ec7m v\u1ee5 kh\u00f4ng \u0111\u01a1n gi\u1ea3n m\u00e0 m\u1ed7i y\u00eau c\u1ea7u s\u1eed d\u1ee5ng c\u00e1c thu\u1eadt to\u00e1n ph\u1ee9c t\u1ea1p v\u00e0 \u0111\u1ee7 s\u1ee9c m\u1ea1nh t\u00ednh to\u00e1n \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng trong th\u1eddi gian th\u1ef1c.<\/p>\r\n\t\t\t\t<div class=\"tgmcad hor\" style=\"text-align:center;margin:30px 0; padding: 10px 0; border-radius:5px; border-top:solid 1px #ccc; border-bottom:solid 1px #ccc; \">\r\n\t\t\t\t<a href=\"https:\/\/thegioimaychu.vn\/giai-phap\/deep-learning\/\"><img decoding=\"async\" alt=\"Gi\u1ea3i ph\u00e1p h\u1ea1 t\u1ea7ng Deep Learning, Tr\u00ed tu\u1ec7 Nh\u00e2n t\u1ea1o - AI\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/2019\/11\/tgmc-deep-learning.jpg\" \/><\/a>\r\n\t\t\t\t<\/div>\n<p>\u1ede c\u1ea5p \u0111\u1ed9 cao, c\u00e1c t\u00e1c v\u1ee5 ph\u1ee5 c\u1ee7a th\u1ecb gi\u00e1c m\u00e1y t\u00ednh l\u00e0 ph\u00e1t hi\u1ec7n v\u00e0 ph\u00e2n \u0111o\u1ea1n \u0111\u1ed1i t\u01b0\u1ee3ng, ph\u00e2n lo\u1ea1i h\u00ecnh \u1ea3nh, theo d\u00f5i \u0111\u1ed1i t\u01b0\u1ee3ng, g\u1eafn nh\u00e3n h\u00ecnh \u1ea3nh v\u1edbi c\u00e1c m\u00f4 t\u1ea3 c\u00f3 \u00fd ngh\u0129a (v\u00ed d\u1ee5 nh\u01b0 ch\u00fa th\u00edch h\u00ecnh \u1ea3nh) v\u00e0 cu\u1ed1i c\u00f9ng, hi\u1ec3u \u00fd ngh\u0129a c\u1ee7a to\u00e0n b\u1ed9 b\u1ed1i c\u1ea3nh.<\/p>\n<h2>Th\u1ecb gi\u00e1c m\u00e1y t\u00ednh trong qu\u00e1 kh\u1ee9<\/h2>\n<p>C\u00e1c h\u1ec7 th\u1ed1ng th\u1ecb gi\u00e1c m\u00e1y t\u00ednh truy\u1ec1n th\u1ed1ng l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u00e1c thu\u1eadt to\u00e1n ph\u1ed1i h\u1ee3p v\u1edbi nhau trong n\u1ed7 l\u1ef1c gi\u1ea3i quy\u1ebft c\u00e1c nhi\u1ec7m v\u1ee5 n\u00f3i tr\u00ean.\u00a0M\u1ee5c ti\u00eau ch\u00ednh l\u00e0 tr\u00edch xu\u1ea5t c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m (feature) t\u1eeb h\u00ecnh \u1ea3nh, bao g\u1ed3m c\u00e1c t\u00e1c v\u1ee5 ph\u1ee5 nh\u01b0 ph\u00e1t hi\u1ec7n c\u1ea1nh, ph\u00e1t hi\u1ec7n g\u00f3c v\u00e0 ph\u00e2n \u0111o\u1ea1n d\u1ef1a tr\u00ean m\u00e0u.\u00a0\u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c thu\u1eadt to\u00e1n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 tr\u00edch xu\u1ea5t c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf v\u00e0 t\u00ednh linh ho\u1ea1t c\u1ee7a t\u1eebng thu\u1eadt to\u00e1n.<\/p>\n<p>V\u00ed d\u1ee5 v\u1ec1 c\u00e1c thu\u1eadt to\u00e1n tr\u00edch xu\u1ea5t feature truy\u1ec1n th\u1ed1ng l\u00e0 Scale-invariant feature transform (SIFT), Speeded up robust features (SURF) v\u00e0 Binary Robust Independent Elementary Features (BRIEF).\u00a0C\u00e1c thu\u1eadt to\u00e1n kh\u00e1c nhau th\u1ef1c hi\u1ec7n v\u1edbi m\u1ee9c \u0111\u1ed9 th\u00e0nh c\u00f4ng kh\u00e1c nhau, t\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a h\u00ecnh \u1ea3nh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m \u0111\u1ea7u v\u00e0o.\u00a0Cu\u1ed1i c\u00f9ng, \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 tr\u00edch xu\u1ea5t c\u00e1c features.\u00a0Khi c\u00e1c features \u0111\u00e3 \u0111\u01b0\u1ee3c tr\u00edch xu\u1ea5t, vi\u1ec7c ph\u00e2n t\u00edch \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p Machine Learning truy\u1ec1n th\u1ed1ng.<\/p>\n<p>V\u1ea5n \u0111\u1ec1 ch\u00ednh v\u1edbi c\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y l\u00e0 h\u1ec7 th\u1ed1ng c\u1ea7n \u0111\u01b0\u1ee3c cho bi\u1ebft nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m c\u1ea7n t\u00ecm trong h\u00ecnh \u1ea3nh.\u00a0V\u1ec1 c\u01a1 b\u1ea3n, do thu\u1eadt to\u00e1n ho\u1ea1t \u0111\u1ed9ng nh\u01b0 \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi nh\u00e0 thi\u1ebft k\u1ebf thu\u1eadt to\u00e1n, c\u00e1c features \u0111\u01b0\u1ee3c tr\u00edch xu\u1ea5t \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf b\u1edfi con ng\u01b0\u1eddi.\u00a0Trong c\u00e1c tri\u1ec3n khai nh\u01b0 v\u1eady, hi\u1ec7u su\u1ea5t k\u00e9m c\u1ee7a thu\u1eadt to\u00e1n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd th\u00f4ng qua tinh ch\u1ec9nh, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh c\u00e1c tham s\u1ed1 ho\u1eb7c s\u1eeda \u0111\u1ed5i c\u1ea5p m\u00e3 \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh h\u00e0nh vi.\u00a0Tuy nhi\u00ean, nh\u1eefng thay \u0111\u1ed5i nh\u01b0 th\u1ebf n\u00e0y c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n th\u1ee7 c\u00f4ng v\u00e0 \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a c\u1ee9ng ho\u1eb7c c\u1ed1 \u0111\u1ecbnh cho m\u1ed9t \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.<\/p>\n<h2>\u0110\u00f3ng g\u00f3p t\u1eeb Deep Learning<\/h2>\n<p>M\u1eb7c d\u00f9 v\u1eabn c\u00f2n nh\u1eefng tr\u1edf ng\u1ea1i \u0111\u00e1ng k\u1ec3 trong con \u0111\u01b0\u1eddng ph\u00e1t tri\u1ec3n c\u1ee7a th\u1ecb gi\u00e1c m\u00e1y t\u00ednh \u0111\u1ebfn &#8220;c\u1ea5p \u0111\u1ed9 con ng\u01b0\u1eddi&#8221;, c\u00e1c h\u1ec7 th\u1ed1ng <a class=\"iblink\" href=\"\/blog\/tag\/deep-learning\/\">Deep Learning<\/a> \u0111\u00e3 \u0111\u1ea1t \u0111\u01b0\u1ee3c ti\u1ebfn b\u1ed9 \u0111\u00e1ng k\u1ec3 trong vi\u1ec7c x\u1eed l\u00fd m\u1ed9t s\u1ed1 nhi\u1ec7m v\u1ee5 ph\u1ee5 c\u00f3 li\u00ean quan.\u00a0L\u00fd do cho s\u1ef1 th\u00e0nh c\u00f4ng n\u00e0y m\u1ed9t ph\u1ea7n d\u1ef1a tr\u00ean tr\u00e1ch nhi\u1ec7m b\u1ed5 sung \u0111\u01b0\u1ee3c giao cho c\u00e1c h\u1ec7 th\u1ed1ng <a class=\"iblink\" href=\"\/blog\/tag\/deep-learning\/\">deep learning<\/a>.<\/p>\n<p>\u0110i\u1ec1u h\u1ee3p l\u00fd \u0111\u1ec3 n\u00f3i r\u1eb1ng s\u1ef1 kh\u00e1c bi\u1ec7t l\u1edbn nh\u1ea5t v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng deep learning l\u00e0 ch\u00fang kh\u00f4ng c\u00f2n c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh \u0111\u1ec3 t\u00ecm ki\u1ebfm c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m c\u1ee5 th\u1ec3.\u00a0Thay v\u00ec t\u00ecm ki\u1ebfm c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m c\u1ee5 th\u1ec3 b\u1eb1ng thu\u1eadt to\u00e1n \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh c\u1ea9n th\u1eadn, c\u00e1c m\u1ea1ng l\u01b0\u1edbi th\u1ea7n kinh b\u00ean trong c\u00e1c h\u1ec7 th\u1ed1ng deep learning \u0111\u01b0\u1ee3c \u0111\u00e0o t\u1ea1o.\u00a0V\u00ed d\u1ee5: n\u1ebfu \u00f4 t\u00f4 trong h\u00ecnh \u1ea3nh b\u1ecb ph\u00e2n lo\u1ea1i sai th\u00e0nh xe m\u00e1y th\u00ec b\u1ea1n kh\u00f4ng tinh ch\u1ec9nh c\u00e1c tham s\u1ed1 ho\u1eb7c vi\u1ebft l\u1ea1i thu\u1eadt to\u00e1n.\u00a0Thay v\u00e0o \u0111\u00f3, b\u1ea1n ti\u1ebfp t\u1ee5c \u0111\u00e0o t\u1ea1o cho \u0111\u1ebfn khi h\u1ec7 th\u1ed1ng l\u00e0m cho \u0111\u00fang.<\/p>\n<p>V\u1edbi s\u1ee9c m\u1ea1nh t\u00ednh to\u00e1n t\u0103ng l\u00ean \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi c\u00e1c h\u1ec7 th\u1ed1ng deep learning hi\u1ec7n \u0111\u1ea1i, c\u00f3 s\u1ef1 ti\u1ebfn b\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u00e1ng ch\u00fa \u00fd h\u01b0\u1edbng t\u1edbi \u0111i\u1ec3m m\u00e0 m\u1ed9t m\u00e1y t\u00ednh s\u1ebd c\u00f3 th\u1ec3 nh\u1eadn ra v\u00e0 ph\u1ea3n \u1ee9ng v\u1edbi m\u1ecdi th\u1ee9 m\u00e0 n\u00f3 nh\u00ecn th\u1ea5y.<\/p>\n<h2>Nh\u00ecn v\u00e0o m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng th\u1ef1c s\u1ef1<\/h2>\n<h3>Ph\u00e2n lo\u1ea1i h\u00ecnh \u1ea3nh<\/h3>\n<p>Ph\u00e2n lo\u1ea1i l\u00e0 qu\u00e1 tr\u00ecnh d\u1ef1 \u0111o\u00e1n m\u1ed9t l\u1edbp ho\u1eb7c nh\u00e3n c\u1ee5 th\u1ec3 cho m\u1ed9t th\u1ee9 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c \u0111i\u1ec3m d\u1eef li\u1ec7u.\u00a0C\u00e1c h\u1ec7 th\u1ed1ng machine learning x\u00e2y d\u1ef1ng c\u00e1c m\u00f4 h\u00ecnh d\u1ef1 \u0111o\u00e1n c\u00f3 l\u1ee3i \u00edch to l\u1edbn nh\u01b0ng th\u01b0\u1eddng kh\u00f4ng th\u1ea5y \u0111\u01b0\u1ee3c cho m\u1ecdi ng\u01b0\u1eddi.\u00a0V\u00ed d\u1ee5: ph\u00e2n lo\u1ea1i email spam \u0111\u00e1ng tin c\u1eady c\u00f3 ngh\u0129a l\u00e0 h\u1ed9p th\u01b0 \u0111\u1ebfn trung b\u00ecnh \u00edt g\u00e1nh n\u1eb7ng h\u01a1n v\u00e0 d\u1ec5 qu\u1ea3n l\u00fd h\u01a1n.\u00a0M\u1eb7c d\u00f9 ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i trung b\u00ecnh d\u01b0\u1eddng nh\u01b0 kh\u00f4ng nh\u1eadn th\u1ee9c \u0111\u01b0\u1ee3c s\u1ef1 ph\u1ee9c t\u1ea1p c\u1ee7a v\u1ea5n \u0111\u1ec1 v\u00e0 s\u1ed1 l\u01b0\u1ee3ng l\u1edbn x\u1eed l\u00fd c\u1ea7n thi\u1ebft \u0111\u1ec3 gi\u1ea3m thi\u1ec3u v\u1ea5n \u0111\u1ec1, nh\u01b0ng l\u1ee3i \u00edch r\u1ea5t r\u00f5 r\u00e0ng.<\/p>\n<p>Ph\u00e2n lo\u1ea1i h\u00ecnh \u1ea3nh l\u00e0 m\u1ed9t t\u1eadp h\u1ee3p con c\u1ee7a v\u1ea5n \u0111\u1ec1 ph\u00e2n lo\u1ea1i, trong \u0111\u00f3 to\u00e0n b\u1ed9 h\u00ecnh \u1ea3nh \u0111\u01b0\u1ee3c g\u00e1n nh\u00e3n.\u00a0C\u00f3 l\u1ebd m\u1ed9t b\u1ee9c \u1ea3nh s\u1ebd \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i l\u00e0 m\u1ed9t b\u1ee9c \u1ea3nh ban ng\u00e0y ho\u1eb7c ban \u0111\u00eam.\u00a0Ho\u1eb7c, theo c\u00e1ch t\u01b0\u01a1ng t\u1ef1, h\u00ecnh \u1ea3nh c\u1ee7a \u00f4 t\u00f4 v\u00e0 xe m\u00e1y s\u1ebd \u0111\u01b0\u1ee3c t\u1ef1 \u0111\u1ed9ng \u0111\u1eb7t v\u00e0o c\u00e1c nh\u00f3m c\u1ee7a ri\u00eang h\u1ecd.<\/p>\n<p>C\u00f3 v\u00f4 s\u1ed1 danh m\u1ee5c, ho\u1eb7c c\u00e1c l\u1edbp, trong \u0111\u00f3 m\u1ed9t h\u00ecnh \u1ea3nh c\u1ee5 th\u1ec3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i.\u00a0Xem x\u00e9t m\u1ed9t quy tr\u00ecnh th\u1ee7 c\u00f4ng trong \u0111\u00f3 c\u00e1c h\u00ecnh \u1ea3nh \u0111\u01b0\u1ee3c so s\u00e1nh v\u00e0 c\u00e1c h\u00ecnh \u1ea3nh t\u01b0\u01a1ng t\u1ef1 \u0111\u01b0\u1ee3c nh\u00f3m theo c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m t\u01b0\u01a1ng t\u1ef1, nh\u01b0ng kh\u00f4ng nh\u1ea5t thi\u1ebft ph\u1ea3i bi\u1ebft tr\u01b0\u1edbc nh\u1eefng g\u00ec b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm.\u00a0R\u00f5 r\u00e0ng, \u0111\u00e2y l\u00e0 m\u1ed9t nhi\u1ec7m v\u1ee5 kh\u00f3 kh\u0103n.\u00a0\u0110\u1ec3 l\u00e0m cho n\u00f3 th\u1eadm ch\u00ed nhi\u1ec1u h\u01a1n nh\u01b0 v\u1eady, gi\u1ea3 s\u1eed r\u1eb1ng t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 h\u00ecnh \u1ea3nh trong h\u00e0ng tr\u0103m ng\u00e0n.\u00a0R\u00f5 r\u00e0ng l\u00e0 c\u1ea7n c\u00f3 m\u1ed9t h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c n\u00e0y nhanh ch\u00f3ng v\u00e0 hi\u1ec7u qu\u1ea3.<\/p>\n<p>Ki\u1ebfn tr\u00fac deep learning \u0111\u1ec3 ph\u00e2n lo\u1ea1i h\u00ecnh \u1ea3nh th\u01b0\u1eddng bao g\u1ed3m c\u00e1c l\u1edbp ch\u1eadp, l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t m\u1ea1ng n\u01a1 ron t\u00edch ch\u1eadp (CNN).\u00a0M\u1ed9t s\u1ed1 si\u00eau \u0111\u01b0\u1eddng k\u00ednh, nh\u01b0 s\u1ed1 l\u01b0\u1ee3ng c\u00e1c l\u1edbp ch\u1eadp v\u00e0 h\u00e0m k\u00edch ho\u1ea1t cho m\u1ed7i l\u1edbp, s\u1ebd ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1eb7t.\u00a0\u0110\u00e2y l\u00e0 m\u1ed9t ph\u1ea7n kh\u00f4ng t\u1ea7m th\u01b0\u1eddng c\u1ee7a qu\u00e1 tr\u00ecnh m\u00e0 n\u00f3 n\u1eb1m ngo\u00e0i ph\u1ea1m vi c\u1ee7a cu\u1ed9c th\u1ea3o lu\u1eadn n\u00e0y.\u00a0Tuy nhi\u00ean, l\u00e0 \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u, ng\u01b0\u1eddi ta th\u01b0\u1eddng c\u00f3 th\u1ec3 ch\u1ecdn c\u00e1c gi\u00e1 tr\u1ecb n\u00e0y d\u1ef1a tr\u00ean nghi\u00ean c\u1ee9u hi\u1ec7n c\u00f3.<\/p>\n<p>Tr\u00ean h\u1ec7 th\u1ed1ng nh\u01b0 v\u1eady l\u00e0 AlexNet, m\u1ed9t CNN \u0111\u00e3 thu h\u00fat s\u1ef1 ch\u00fa \u00fd khi chi\u1ebfn th\u1eafng Th\u1eed th\u00e1ch nh\u1eadn d\u1ea1ng h\u00ecnh \u1ea3nh quy m\u00f4 l\u1edbn ImageNet (ILSVRC) n\u0103m 2012.\u00a0M\u1ed9t m\u00f4 h\u00ecnh \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u k\u1ef9 l\u01b0\u1ee1ng kh\u00e1c l\u00e0 M\u1ea1ng th\u1ea7n kinh d\u01b0 (ResNet), sau n\u00e0y \u0111\u00e3 chi\u1ebfn th\u1eafng th\u1eed th\u00e1ch t\u01b0\u01a1ng t\u1ef1, c\u0169ng nh\u01b0 cu\u1ed9c thi \u0110\u1ed1i t\u01b0\u1ee3ng chung c\u1ee7a Microsoft trong b\u1ed1i c\u1ea3nh (MS COCO) v\u00e0o n\u0103m 2015.<\/p>\n<h3>Ph\u00e2n lo\u1ea1i h\u00ecnh \u1ea3nh c\u00f9ng v\u1edbi vi\u1ec7c b\u1ea3n \u0111\u1ecba h\u00f3a<\/h3>\n<p>\u1ee8ng d\u1ee5ng th\u1ee9 hai c\u1ee7a deep learning cho th\u1ecb gi\u00e1c m\u00e1y t\u00ednh l\u00e0 Ph\u00e2n lo\u1ea1i h\u00ecnh \u1ea3nh v\u1edbi b\u1ea3n \u0111\u1ecba h\u00f3a.\u00a0V\u1ea5n \u0111\u1ec1 n\u00e0y l\u00e0 m\u1ed9t chuy\u00ean m\u00f4n c\u1ee7a ph\u00e2n lo\u1ea1i h\u00ecnh \u1ea3nh, v\u1edbi y\u00eau c\u1ea7u b\u1ed5 sung r\u1eb1ng \u0111\u1ed1i t\u01b0\u1ee3ng trong \u1ea3nh \u0111\u01b0\u1ee3c \u0111\u1eb7t \u0111\u1ea7u ti\u00ean, v\u00e0 sau \u0111\u00f3 m\u1ed9t h\u1ed9p gi\u1edbi h\u1ea1n \u0111\u01b0\u1ee3c v\u1ebd xung quanh n\u00f3.<\/p>\n<p>\u0110\u00e2y l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 kh\u00f3 kh\u0103n h\u01a1n so v\u1edbi ph\u00e2n lo\u1ea1i h\u00ecnh \u1ea3nh v\u00e0 n\u00f3 b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c x\u00e1c \u0111\u1ecbnh li\u1ec7u ch\u1ec9 c\u00f3 m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng duy nh\u1ea5t \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3.\u00a0N\u1ebfu v\u1eady, ho\u1eb7c n\u1ebfu s\u1ed1 l\u01b0\u1ee3ng \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c bi\u1ebft, th\u00ec m\u1ee5c ti\u00eau l\u00e0 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed c\u1ee7a t\u1eebng \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 x\u00e1c \u0111\u1ecbnh b\u1ed1n g\u00f3c c\u1ee7a h\u1ed9p gi\u1edbi h\u1ea1n t\u01b0\u01a1ng \u1ee9ng.<\/p>\n<p>Qu\u00e1 tr\u00ecnh n\u00e0y s\u1ebd l\u00e0 m\u1ed9t b\u01b0\u1edbc c\u1ea7n thi\u1ebft trong m\u1ed9t h\u1ec7 th\u1ed1ng ch\u1ecbu tr\u00e1ch nhi\u1ec7m nh\u1eadn d\u1ea1ng xe.\u00a0H\u00e3y xem x\u00e9t m\u1ed9t h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng duy\u1ec7t h\u00ecnh \u1ea3nh c\u1ee7a xe \u00f4 t\u00f4 v\u00e0 \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00f3 m\u1ed9t chi\u1ebfc xe duy nh\u1ea5t ch\u1ee9a trong c\u1ea3nh.\u00a0Khi chi\u1ebfc xe \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ecbnh v\u1ecb, c\u00e1c thu\u1ed9c t\u00ednh nh\u01b0 nh\u00e3n hi\u1ec7u, ki\u1ec3u d\u00e1ng v\u00e0 m\u00e0u s\u1eafc c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh.<\/p>\n<p>Nhi\u1ec7m v\u1ee5 n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u1ed9t m\u00f4 h\u00ecnh deep learning ph\u1ed5 bi\u1ebfn, ch\u1eb3ng h\u1ea1n nh\u01b0 AlexNet ho\u1eb7c ResNet, v\u00e0 s\u1eeda \u0111\u1ed5i l\u1edbp \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ec3 t\u1ea1o h\u1ed9p gi\u1edbi h\u1ea1n.\u00a0Nh\u01b0 \u0111\u00e3 \u0111\u1ec1 c\u1eadp tr\u01b0\u1edbc \u0111\u00e2y, c\u00f3 th\u1ec3 c\u00f3 m\u1ed9t s\u1ed1 tinh ch\u1ec9nh \u0111\u1ec3 th\u1ef1c hi\u1ec7n v\u1ec1 m\u1eb7t c\u00e0i \u0111\u1eb7t si\u00eau \u0111\u01b0\u1eddng k\u00ednh ho\u1eb7c s\u1eeda \u0111\u1ed5i ki\u1ebfn \u200b\u200btr\u00fac cho hi\u1ec7u qu\u1ea3 trong m\u1ed9t mi\u1ec1n c\u1ee5 th\u1ec3, nh\u01b0ng trong th\u1ef1c t\u1ebf, c\u00e1c ki\u1ebfn \u200b\u200btr\u00fac c\u01a1 b\u1ea3n ho\u1ea1t \u0111\u1ed9ng t\u1ed1t.\u00a0S\u1ebd c\u1ea7n ph\u1ea3i c\u00f3 \u0111\u1ee7 d\u1eef li\u1ec7u hu\u1ea5n luy\u1ec7n bao g\u1ed3m c\u00e1c v\u00ed d\u1ee5 v\u1edbi c\u1ea3 m\u00f4 t\u1ea3 \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 h\u1ed9p gi\u1edbi h\u1ea1n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng, m\u1eb7c d\u00f9 c\u00e1c b\u1ed9 d\u1eef li\u1ec7u m\u1eabu c\u00f3 s\u1eb5n cho m\u1ee5c \u0111\u00edch n\u00e0y.<\/p>\n<p>Kh\u00f3 kh\u0103n v\u1edbi nhi\u1ec7m v\u1ee5 n\u00e0y x\u1ea3y ra khi c\u00f3 m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00f4ng x\u00e1c \u0111\u1ecbnh trong h\u00ecnh.\u00a0Trong ph\u1ea7n l\u1edbn c\u00e1c h\u00ecnh \u1ea3nh, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng h\u00ecnh \u1ea3nh \u0111\u01b0\u1ee3c ch\u1ee5p \u1edf khu v\u1ef1c c\u00f4ng c\u1ed9ng, s\u1ebd c\u00f3 nhi\u1ec1u kh\u1ea3 n\u0103ng nh\u01b0 ng\u01b0\u1eddi, ph\u01b0\u01a1ng ti\u1ec7n, c\u00e2y c\u1ed1i v\u00e0 \u0111\u1ed9ng v\u1eadt kh\u00e1c nhau.\u00a0\u0110\u1ed1i v\u1edbi lo\u1ea1i m\u00f4i tr\u01b0\u1eddng n\u00e0y, v\u1ea5n \u0111\u1ec1 tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng ph\u00e1t hi\u1ec7n \u0111\u1ed1i t\u01b0\u1ee3ng.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/2019\/11\/tgmc-blog-5ddf39b2ad76e.png\" alt=\"\" \/><\/p>\n<p><em>Ngu\u1ed3n: CS231n (B\u00e0i gi\u1ea3ng Stanford)<\/em><\/p>\n<h3>Ph\u00e1t hi\u1ec7n \u0111\u1ed1i t\u01b0\u1ee3ng<\/h3>\n<p>Ph\u00e1t hi\u1ec7n \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 ph\u00e2n lo\u1ea1i h\u00ecnh \u1ea3nh v\u1edbi n\u1ed9i \u0111\u1ecba h\u00f3a, nh\u01b0ng trong c\u00e1c h\u00ecnh \u1ea3nh c\u00f3 th\u1ec3 ch\u1ee9a nhi\u1ec1u \u0111\u1ed1i t\u01b0\u1ee3ng.\u00a0\u0110\u00e2y l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c nghi\u00ean c\u1ee9u t\u00edch c\u1ef1c v\u00e0 quan tr\u1ecdng b\u1edfi v\u00ec c\u00e1c h\u1ec7 th\u1ed1ng th\u1ecb gi\u00e1c m\u00e1y t\u00ednh s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong robot v\u00e0 xe t\u1ef1 l\u00e1i s\u1ebd ph\u1ea3i ch\u1ecbu nh\u1eefng h\u00ecnh \u1ea3nh r\u1ea5t ph\u1ee9c t\u1ea1p.\u00a0X\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed v\u00e0 x\u00e1c \u0111\u1ecbnh m\u1ecdi \u0111\u1ed1i t\u01b0\u1ee3ng ch\u1eafc ch\u1eafn s\u1ebd l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng trong quy\u1ec1n t\u1ef1 ch\u1ee7 c\u1ee7a h\u1ecd.<\/p>\n<p>Ki\u1ebfn tr\u00fac c\u1ea7n thi\u1ebft \u0111\u1ec3 ph\u00e1t hi\u1ec7n \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00e1c nhau theo m\u1ed9t c\u00e1ch quan tr\u1ecdng.\u00a0C\u1ee5 th\u1ec3, k\u00edch th\u01b0\u1edbc c\u1ee7a vect\u01a1 \u0111\u1ea7u ra kh\u00f4ng c\u1ed1 \u0111\u1ecbnh.\u00a0V\u00ed d\u1ee5, n\u1ebfu c\u00f3 m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng trong h\u00ecnh, th\u00ec s\u1ebd c\u00f3 b\u1ed1n t\u1ecda \u0111\u1ed9 x\u00e1c \u0111\u1ecbnh h\u1ed9p gi\u1edbi h\u1ea1n.\u00a0Gi\u00e1 tr\u1ecb t\u0129nh v\u00e0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh tr\u01b0\u1edbc n\u00e0y ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c ki\u1ebfn \u200b\u200btr\u00fac \u0111\u00e3 \u0111\u1ec1 c\u1eadp tr\u01b0\u1edbc \u0111\u00f3.\u00a0Tuy nhi\u00ean, khi s\u1ed1 l\u01b0\u1ee3ng \u0111\u1ed1i t\u01b0\u1ee3ng t\u0103ng l\u00ean, s\u1ed1 l\u01b0\u1ee3ng t\u1ecda \u0111\u1ed9 c\u0169ng t\u0103ng theo.\u00a0\u0110\u1eb7c bi\u1ec7t l\u00e0 s\u1ed1 l\u01b0\u1ee3ng \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00f4ng \u0111\u01b0\u1ee3c bi\u1ebft tr\u01b0\u1edbc, \u0111i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi ph\u1ea3i \u0111i\u1ec1u ch\u1ec9nh trong trang \u0111i\u1ec3m c\u1ee7a m\u1ea1ng l\u01b0\u1edbi th\u1ea7n kinh.<\/p>\n<p>M\u1ed9t ki\u1ebfn \u200b\u200btr\u00fac \u0111\u01b0\u1ee3c s\u1eeda \u0111\u1ed5i nh\u01b0 v\u1eady l\u00e0 R-CNN: Khu v\u1ef1c c\u00f3 c\u00e1c t\u00ednh n\u0103ng CNN.\u00a0C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y li\u00ean quan \u0111\u1ebfn vi\u1ec7c t\u1ea1o c\u00e1c v\u00f9ng quan t\u00e2m \u0111\u01b0\u1ee3c thu nh\u1ecf theo k\u00edch th\u01b0\u1edbc c\u1ed1 \u0111\u1ecbnh v\u00e0 sau \u0111\u00f3 chuy\u1ec3n ti\u1ebfp c\u00e1c v\u00f9ng n\u00e0y th\u00e0nh m\u1ed9t m\u00f4 h\u00ecnh nh\u01b0 AlexNet.\u00a0Trong khi h\u1ec7 th\u1ed1ng n\u00e0y t\u1ea1o ra k\u1ebft qu\u1ea3 t\u1ed1t, n\u00f3 \u0111\u1eaft ti\u1ec1n v\u1ec1 m\u1eb7t t\u00ednh to\u00e1n v\u00e0 qu\u00e1 ch\u1eadm \u0111\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng th\u1ecb gi\u00e1c m\u00e1y t\u00ednh th\u1eddi gian th\u1ef1c.<\/p>\n<p>V\u1edbi m\u1ee5c ti\u00eau t\u0103ng t\u1ed1c R-CNN, \u0111\u00e3 c\u00f3 nhi\u1ec1u \u0111i\u1ec1u ch\u1ec9nh kh\u00e1c nhau \u0111\u1ed1i v\u1edbi ki\u1ebfn \u200b\u200btr\u00fac.\u00a0\u0110\u1ea7u ti\u00ean l\u00e0 Fast R-CNN, ch\u1ee9a t\u1ed1i \u01b0u h\u00f3a v\u00e0 c\u00e1c c\u1ea3i ti\u1ebfn kh\u00e1c gi\u00fap c\u1ea3i thi\u1ec7n c\u1ea3 t\u1ed1c \u0111\u1ed9 v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c ph\u00e1t hi\u1ec7n.\u00a0Ti\u1ebfn l\u00ean m\u1ed9t b\u01b0\u1edbc n\u1eefa, th\u1ebf h\u1ec7 ti\u1ebfp theo, m\u00f4 h\u00ecnh R-CNN nhanh h\u01a1n, bao g\u1ed3m m\u1ed9t CNN b\u1ed5 sung c\u00f3 t\u00ean M\u1ea1ng \u0111\u1ec1 xu\u1ea5t khu v\u1ef1c (RPN).<\/p>\n<p>RPN \u0111\u01b0\u1ee3c \u0111\u00e0o t\u1ea1o \u0111\u1ec3 t\u1ea1o c\u00e1c v\u00f9ng ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u01b0\u1ee3c g\u1eedi t\u1edbi m\u00f4 h\u00ecnh R-CNN nhanh.\u00a0S\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u00e1c thu\u1eadt to\u00e1n n\u00e0y d\u1eabn \u0111\u1ebfn s\u1ef1 gia t\u0103ng t\u1ed1c \u0111\u1ed9 \u1ea5n t\u01b0\u1ee3ng v\u00e0 th\u1ef1c s\u1ef1 tr\u00ean con \u0111\u01b0\u1eddng h\u01b0\u1edbng t\u1edbi ph\u00e1t hi\u1ec7n \u0111\u1ed1i t\u01b0\u1ee3ng th\u1eddi gian th\u1ef1c trong c\u00e1c h\u1ec7 th\u1ed1ng th\u1ecb gi\u00e1c m\u00e1y t\u00ednh.<\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/2019\/11\/tgmc-blog-5ddf39b646d3c.png\" alt=\"\" \/><\/p>\n<p><em>(Ngu\u1ed3n: https:\/\/machinelearningmastery.com\/appluggest-of-deep-learning-for-computer-vision\/)<\/em><\/p>\n<h3>T\u00e1i thi\u1ebft h\u00ecnh \u1ea3nh<\/h3>\n<p>T\u00e1i t\u1ea1o h\u00ecnh \u1ea3nh l\u00e0 nhi\u1ec7m v\u1ee5 t\u00e1i t\u1ea1o c\u00e1c ph\u1ea7n b\u1ecb thi\u1ebfu ho\u1eb7c h\u1ecfng c\u1ee7a h\u00ecnh \u1ea3nh.\u00a0\u0110\u00e2y l\u00e0 m\u1ed9t c\u00f4ng vi\u1ec7c kh\u00f3 kh\u0103n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ngh\u0129 \u0111\u1ebfn v\u1ec1 m\u1ed9t chuy\u1ec3n \u0111\u1ed5i ho\u1eb7c b\u1ed9 l\u1ecdc, c\u00f3 th\u1ec3 kh\u00f4ng c\u00f3 \u0111\u00e1nh gi\u00e1 kh\u00e1ch quan.\u00a0M\u1eb7c d\u00f9 th\u1ef1c s\u1ef1 c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c thu\u1ed9c t\u00ednh c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y c\u1ee7a h\u00ecnh \u1ea3nh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p ch\u1eb7t ch\u1ebd, r\u00f5 r\u00e0ng l\u00e0 kh\u00f4ng h\u1ee3p l\u00fd khi y\u00eau c\u1ea7u m\u00e1y t\u00ednh t\u1ea1o l\u1ea1i chi ti\u1ebft m\u00e0 kh\u00f4ng c\u00f3 tham chi\u1ebfu.\u00a0Nh\u01b0 v\u1eady, c\u00e1c h\u1ec7 th\u1ed1ng t\u00e1i t\u1ea1o h\u00ecnh \u1ea3nh c\u00f3 c\u00e1c gi\u1edbi h\u1ea1n ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o m\u1ee9c \u0111\u1ed9 h\u00ecnh \u1ea3nh g\u1ed1c c\u00f3 s\u1eb5n \u0111\u1ec3 h\u1ecdc h\u1ecfi.<\/p>\n<p>M\u1ed9t m\u00f4 h\u00ecnh th\u1ef1c hi\u1ec7n t\u00e1i t\u1ea1o h\u00ecnh \u1ea3nh \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u00ean l\u00e0 M\u1ea1ng th\u1ea7n kinh t\u00e1i t\u1ea1o Pixel.\u00a0\u0110\u00e2y l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng M\u1ea1ng th\u1ea7n kinh t\u00e1i ph\u00e1t (RNN) \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n c\u00e1c pixel b\u1ecb thi\u1ebfu trong m\u1ed9t h\u00ecnh \u1ea3nh d\u1ecdc theo hai chi\u1ec1u kh\u00f4ng gian.<\/p>\n<p>V\u00ed d\u1ee5 v\u1ec1 c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u1ec3 t\u00e1i t\u1ea1o h\u00ecnh \u1ea3nh l\u00e0 ph\u1ee5c h\u1ed3i \u1ea3nh ho\u1eb7c phim \u0111en tr\u1eafng.\u00a0Trong m\u1ed9t chi\u1ebfc xe t\u1ef1 l\u00e1i, t\u00e1i t\u1ea1o h\u00ecnh \u1ea3nh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 nh\u00ecn xa h\u01a1n c\u00e1c v\u1eadt c\u1ea3n nh\u1ecf, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u1ed9t bi\u1ec3n ch\u1ec9 d\u1eabn gi\u1eefa xe v\u00e0 ng\u01b0\u1eddi \u0111i b\u1ed9 \u0111ang \u0111\u01b0\u1ee3c theo d\u00f5i.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/2019\/11\/tgmc-blog-5ddf39baa9fd5.png\" alt=\"\" \/><\/p>\n<p><em>(T\u00e1i t\u1ea1o v\u00e0 t\u00f4 m\u00e0u h\u00ecnh \u1ea3nh. Ngu\u1ed3n:\u00a0<a href=\"https:\/\/news.developer.nvidia.com\/new-ai-imaging-technique-reconstructs-photos-with-realistic-results\/\">NVIDIA<\/a>\u00a0v\u00e0\u00a0\u00a0<\/em><em><a href=\"https:\/\/blog.floydhub.com\/colorizing-and-restoring-old-images-with-deep-learning\/\">blog.floydhub.com)<\/a><\/em><\/p>\n<h3>Theo d\u00f5i \u0111\u1ed1i t\u01b0\u1ee3ng<\/h3>\n<p>\u0110\u1ebfn th\u1eddi \u0111i\u1ec3m n\u00e0y, c\u00e1c t\u00e1c v\u1ee5 \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1eadp trung v\u00e0o c\u00e1c ho\u1ea1t \u0111\u1ed9ng c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng v\u1edbi m\u1ed9t h\u00ecnh \u1ea3nh t\u0129nh duy nh\u1ea5t.\u00a0Tuy nhi\u00ean, m\u1ed9t m\u1ee5c ti\u00eau quan tr\u1ecdng trong th\u1ecb gi\u00e1c m\u00e1y t\u00ednh l\u00e0 c\u00f3 kh\u1ea3 n\u0103ng nh\u1eadn ra m\u1ed9t s\u1ef1 ki\u1ec7n \u0111ang x\u1ea3y ra trong m\u1ed9t kho\u1ea3ng th\u1eddi gian.\u00a0V\u1edbi m\u1ed9t h\u00ecnh \u1ea3nh duy nh\u1ea5t \u0111\u1ec3 m\u00f4 t\u1ea3 tr\u1ef1c quan c\u00e1c s\u1ef1 ki\u1ec7n c\u00f9ng m\u1ed9t l\u00fac, n\u00f3 \u0111\u00f2i h\u1ecfi m\u1ed9t lo\u1ea1t c\u00e1c h\u00ecnh \u1ea3nh \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c s\u1ef1 hi\u1ec3u bi\u1ebft l\u1edbn h\u01a1n v\u1ec1 t\u1ed5ng th\u1ec3.<\/p>\n<p>Theo d\u00f5i \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 m\u1ed9t v\u00ed d\u1ee5 nh\u01b0 v\u1eady, trong \u0111\u00f3 m\u1ee5c ti\u00eau l\u00e0 theo d\u00f5i m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee5 th\u1ec3 trong chu\u1ed7i h\u00ecnh \u1ea3nh ho\u1eb7c video.\u00a0\u1ea2nh ch\u1ee5p b\u1eaft \u0111\u1ea7u chu\u1ed7i ch\u1ee9a \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 h\u1ed9p gi\u1edbi h\u1ea1n v\u00e0 thu\u1eadt to\u00e1n theo d\u00f5i xu\u1ea5t ra h\u1ed9p gi\u1edbi h\u1ea1n cho t\u1ea5t c\u1ea3 c\u00e1c khung ti\u1ebfp theo.\u00a0L\u00fd t\u01b0\u1edfng nh\u1ea5t, h\u1ed9p gi\u1edbi h\u1ea1n s\u1ebd \u0111\u00f3ng g\u00f3i ho\u00e0n h\u1ea3o c\u00f9ng m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng mi\u1ec5n l\u00e0 n\u00f3 c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y.\u00a0H\u01a1n n\u1eefa, n\u1ebfu \u0111\u1ed1i t\u01b0\u1ee3ng n\u00ean b\u1ecb che khu\u1ea5t v\u00e0 sau \u0111\u00f3 xu\u1ea5t hi\u1ec7n l\u1ea1i, vi\u1ec7c theo d\u00f5i n\u00ean \u0111\u01b0\u1ee3c duy tr\u00ec.\u00a0V\u1edbi m\u1ee5c \u0111\u00edch c\u1ee7a cu\u1ed9c th\u1ea3o lu\u1eadn n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 gi\u1ea3 s\u1eed r\u1eb1ng \u0111\u1ea7u v\u00e0o c\u1ee7a thu\u1eadt to\u00e1n theo d\u00f5i \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 \u0111\u1ea7u ra t\u1eeb thu\u1eadt to\u00e1n ph\u00e1t hi\u1ec7n \u0111\u1ed1i t\u01b0\u1ee3ng.<\/p>\n<p>Theo d\u00f5i \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 quan tr\u1ecdng \u0111\u1ed1i v\u1edbi h\u1ea7u h\u1ebft m\u1ecdi h\u1ec7 th\u1ed1ng th\u1ecb gi\u00e1c m\u00e1y t\u00ednh c\u00f3 ch\u1ee9a nhi\u1ec1u h\u00ecnh \u1ea3nh.\u00a0Trong xe h\u01a1i t\u1ef1 l\u00e1i, v\u00ed d\u1ee5, ng\u01b0\u1eddi \u0111i b\u1ed9 v\u00e0 c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n kh\u00e1c th\u01b0\u1eddng ph\u1ea3i tr\u00e1nh \u1edf m\u1ee9c \u01b0u ti\u00ean r\u1ea5t cao.\u00a0Theo d\u00f5i c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng khi ch\u00fang di chuy\u1ec3n s\u1ebd kh\u00f4ng ch\u1ec9 gi\u00fap tr\u00e1nh va ch\u1ea1m th\u00f4ng qua vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c thao t\u00e1c chia gi\u00e2y, m\u00e0 c\u00f2n, m\u00f4 h\u00ecnh c\u00f3 th\u1ec3 cung c\u1ea5p th\u00f4ng tin li\u00ean quan cho c\u00e1c h\u1ec7 th\u1ed1ng kh\u00e1c s\u1ebd c\u1ed1 g\u1eafng d\u1ef1 \u0111o\u00e1n h\u00e0nh \u0111\u1ed9ng ti\u1ebfp theo c\u1ee7a ch\u00fang.<\/p>\n<p>Th\u01b0 vi\u1ec7n th\u1ecb gi\u00e1c m\u00e1y t\u00ednh Ngu\u1ed3n m\u1edf, OpenCV, ch\u1ee9a API theo d\u00f5i \u0111\u1ed1i t\u01b0\u1ee3ng.\u00a0C\u00f3 m\u1ed9t s\u1ed1 thu\u1eadt to\u00e1n c\u00f3 s\u1eb5n, m\u1ed7i thu\u1eadt to\u00e1n th\u1ef1c hi\u1ec7n kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a video, c\u0169ng nh\u01b0 ch\u00ednh \u0111\u1ed1i t\u01b0\u1ee3ng.\u00a0V\u00ed d\u1ee5, m\u1ed9t s\u1ed1 thu\u1eadt to\u00e1n ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n khi \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c theo d\u00f5i tr\u1edf n\u00ean b\u1ecb t\u1eafc ngh\u1ebdn trong gi\u00e2y l\u00e1t.\u00a0OpenCV ch\u1ee9a c\u1ea3 thu\u1eadt to\u00e1n c\u1ed5 \u0111i\u1ec3n v\u00e0 hi\u1ec7n \u0111\u1ea1i \u0111\u1ec3 x\u1eed l\u00fd nhi\u1ec1u t\u00e1c v\u1ee5 trong th\u1ecb gi\u00e1c m\u00e1y t\u00ednh v\u00e0 l\u00e0 m\u1ed9t t\u00e0i nguy\u00ean h\u1eefu \u00edch \u0111\u1ec3 ph\u00e1t tri\u1ec3n c\u00e1c h\u1ec7 th\u1ed1ng nh\u01b0 v\u1eady.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/2019\/11\/tgmc-blog-5ddf39bff0189.png\" alt=\"\" \/><\/p>\n<p><em>(Ngu\u1ed3n:\u00a0<a href=\"https:\/\/neurohive.io\/en\/datasets\/new-datasets-for-object-tracking\/\">neurohive.io<\/a>\u00a0)<\/em><\/p>\n<h2>Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2>\n<p>Th\u1ecb gi\u00e1c m\u00e1y t\u00ednh l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c th\u00fa v\u1ecb v\u00e0 quan tr\u1ecdng, \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng tr\u00ean nhi\u1ec1u l\u0129nh v\u1ef1c.\u00a0Vi\u1ec7c s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3 ch\u00fang kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 c\u00f3 li\u00ean quan \u0111\u1ebfn, m\u00e0 n\u00f3 c\u00f2n mang t\u00ednh ch\u1ea5t b\u1eaft bu\u1ed9c v\u00e0 c\u1ef1c k\u1ef3 quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng n\u00e2ng cao nh\u01b0 robot t\u1ef1 \u0111\u1ed9ng v\u00e0 c\u00e1c lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n t\u1ef1 v\u1eadn h\u00e0nh.<\/p>\n<p>H\u1ec7 th\u1ed1ng th\u1ecb gi\u00e1c m\u00e1y t\u00ednh truy\u1ec1n th\u1ed1ng kh\u00f4ng ch\u1ec9 ch\u1eadm ch\u1ea1p m\u00e0 c\u00f2n thi\u1ebfu t\u00ednh linh ho\u1ea1t.\u00a0Ch\u00fang y\u00eau c\u1ea7u r\u1ea5t nhi\u1ec1u \u0111\u1ea7u v\u00e0o t\u1eeb nh\u00e0 ph\u00e1t tri\u1ec3n v\u00e0 kh\u00f4ng d\u1ec5 d\u00e0ng \u0111i\u1ec1u ch\u1ec9nh theo m\u00f4i tr\u01b0\u1eddng m\u1edbi.\u00a0M\u1eb7t kh\u00e1c, c\u00e1c h\u1ec7 th\u1ed1ng deep learning, x\u1eed l\u00fd c\u00e1c nhi\u1ec7m v\u1ee5 th\u1ecb gi\u00e1c m\u00e1y t\u00ednh t\u1eeb \u0111\u1ea7u \u0111\u1ebfn cu\u1ed1i v\u00e0 kh\u00f4ng y\u00eau c\u1ea7u th\u00f4ng tin b\u00ean ngo\u00e0i ho\u1eb7c \u0111\u00e0o t\u1ea1o li\u00ean t\u1ee5c \u1edf c\u00f9ng m\u1ee9c \u0111\u1ed9.<\/p>\n<p>Nh\u1eefng ti\u1ebfn b\u1ed9 trong h\u1ec7 th\u1ed1ng deep learning v\u00e0 s\u1ee9c m\u1ea1nh t\u00ednh to\u00e1n \u0111\u00e3 gi\u00fap c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9, \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ed9 tin c\u1eady t\u1ed5ng th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng th\u1ecb gi\u00e1c m\u00e1y t\u00ednh.\u00a0Khi c\u00e1c m\u00f4 h\u00ecnh deep learning c\u1ea3i thi\u1ec7n v\u00e0 s\u1ee9c m\u1ea1nh t\u00ednh to\u00e1n tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n, ch\u00fang ta s\u1ebd ti\u1ebfp t\u1ee5c \u0111\u1ea1t \u0111\u01b0\u1ee3c nh\u1eefng ti\u1ebfn b\u1ed9 v\u00e0 s\u1ef1 \u1ed5n \u0111\u1ecbnh \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng t\u1ef1 v\u1eadn h\u00e0nh c\u00f3 th\u1ec3 th\u1ef1c s\u1ef1 n\u1eafm b\u1eaft v\u00e0 ph\u1ea3n \u1ee9ng v\u1edbi nh\u1eefng g\u00ec ch\u00fang c\u1ea3m nh\u1eadn.<\/p>\n<div>____<br \/><b>B\u00e0i vi\u1ebft li\u00ean quan<\/b><\/div>\n<ul>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=22728\">Hu\u1ea5n luy\u1ec7n m\u00f4 h\u00ecnh h\u00e0ng tr\u0103m t\u1ef7 tham s\u1ed1 ngay t\u1ea1i b\u00e0n v\u1edbi MSI EdgeXpert<\/a><\/li>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=22612\">NVIDIA Merlin: T\u1ed5ng quan v\u1ec1 toolkit cho h\u1ec7 th\u1ed1ng g\u1ee3i \u00fd quy m\u00f4 l\u1edbn<\/a><\/li>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=22376\">OpenAI l\u1ea7n \u0111\u1ea7u ph\u00e1t h\u00e0nh mi\u1ec5n ph\u00ed m\u00f4 h\u00ecnh ng\u00f4n ng\u1eef m\u1edbi v\u1edbi t\u00ean g\u1ecdi l\u00e0 GPT-OSS<\/a><\/li>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=20284\">H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn GPU ph\u00f9 h\u1ee3p cho AI, Machine Learning<\/a><\/li>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=20978\">Ph\u00e2n t\u00edch video th\u00f4ng minh &#8211; Intelligent Video Analytics: T\u01b0\u01a1ng lai c\u1ee7a m\u1ecdi ng\u00e0nh<\/a><\/li>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=21466\">5 \u0111i\u1ec1u b\u1ea1n c\u1ea7n bi\u1ebft v\u1ec1 NVIDIA DGX Spark &#8211; Chi\u1ebfc m\u00e1y t\u00ednh m\u01a1 \u01b0\u1edbc c\u1ee7a c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n AI<\/a><\/li>\n<\/ul>\n<\/p>","protected":false},"excerpt":{"rendered":"<p>Th&#7883; gi&aacute;c m&aacute;y t&iacute;nh (computer vision) &#273;&#7873; c&#7853;p &#273;&#7871;n to&agrave;n b&#7897; qu&aacute; tr&igrave;nh m&ocirc; ph&#7887;ng t&#7847;m nh&igrave;n c&#7911;a con ng&#432;&#7901;i trong m&#7897;t b&#7897; m&aacute;y phi sinh h&#7885;c.&nbsp;&#272;i&#7873;u n&agrave;y bao g&#7891;m vi&#7879;c ch&#7909;p &#7843;nh ban &#273;&#7847;u, ph&aacute;t hi&#7879;n v&agrave; nh&#7853;n d&#7841;ng &#273;&#7889;i t&#432;&#7907;ng, nh&#7853;n bi&#7871;t b&#7889;i c&#7843;nh t&#7841;m th&#7901;i gi&#7919;a c&aacute;c c&#7843;nh v&agrave; ph&aacute;t tri&#7875;n s&#7921;&#8230;<\/p>\n","protected":false},"author":2,"featured_media":3211,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[3],"tags":[7,254,242,12],"class_list":["post-3205","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ai-hpc","tag-ai","tag-autonomous","tag-computer-vision","tag-deep-learning"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>5 \u1ee9ng d\u1ee5ng c\u1ee7a th\u1ecb gi\u00e1c m\u00e1y t\u00ednh cho Deep Learning - Blog | TheGioiMayChu<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/thegioimaychu.vn\/blog\/ai-hpc\/5-ung-dung-cua-thi-giac-may-tinh-cho-deep-learning-p3205\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"5 \u1ee9ng d\u1ee5ng c\u1ee7a th\u1ecb gi\u00e1c m\u00e1y t\u00ednh cho Deep Learning - Blog | TheGioiMayChu\" \/>\n<meta name=\"twitter:description\" content=\"Th&#7883; gi&aacute;c m&aacute;y t&iacute;nh (computer vision) &#273;&#7873; c&#7853;p &#273;&#7871;n to&agrave;n b&#7897; qu&aacute; tr&igrave;nh m&ocirc; ph&#7887;ng t&#7847;m nh&igrave;n c&#7911;a con ng&#432;&#7901;i trong m&#7897;t b&#7897; m&aacute;y phi sinh h&#7885;c.&nbsp;&#272;i&#7873;u n&agrave;y bao g&#7891;m vi&#7879;c ch&#7909;p &#7843;nh ban &#273;&#7847;u, ph&aacute;t hi&#7879;n v&agrave; nh&#7853;n d&#7841;ng &#273;&#7889;i t&#432;&#7907;ng, nh&#7853;n bi&#7871;t b&#7889;i c&#7843;nh t&#7841;m th&#7901;i gi&#7919;a c&aacute;c c&#7843;nh v&agrave; ph&aacute;t tri&#7875;n s&#7921;...\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/2019\/11\/hero-image1-e1574910903499.png\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Vanito Hoang\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"24 minutes\" \/>\n<script type=\"application\/ld+json\" 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