{"id":9313,"date":"2022-05-24T16:20:13","date_gmt":"2022-05-24T09:20:13","guid":{"rendered":"https:\/\/kotwel.com\/co-bao-nhieu-loai-gan-nhan-hinh-anh-pho-bien-de-nhan-dien-doi-tuong\/"},"modified":"2022-06-20T09:36:06","modified_gmt":"2022-06-20T02:36:06","slug":"co-bao-nhieu-loai-gan-nhan-hinh-anh-pho-bien-de-nhan-dien-doi-tuong","status":"publish","type":"post","link":"https:\/\/kotwel.com\/vi\/co-bao-nhieu-loai-gan-nhan-hinh-anh-pho-bien-de-nhan-dien-doi-tuong\/","title":{"rendered":"C\u00f3 bao nhi\u00eau lo\u1ea1i g\u00e1n nh\u00e3n h\u00ecnh \u1ea3nh ph\u1ed5 bi\u1ebfn \u0111\u1ec3 nh\u1eadn di\u1ec7n \u0111\u1ed1i t\u01b0\u1ee3ng?"},"content":{"rendered":"\n
C\u00f3 nhi\u1ec1u lo\u1ea1i g\u00e1n nh\u00e3n h\u00ecnh \u1ea3nh kh\u00e1c nhau \u0111\u1ec3 nh\u1eadn di\u1ec7n \u0111\u1ed1i t\u01b0\u1ee3ng trong ng\u00e0nh tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o (AI). C\u00e1c nh\u00e3n n\u00e0y gi\u00fap con ng\u01b0\u1eddi v\u00e0 c\u00e1c thu\u1eadt to\u00e1n x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng trong h\u00ecnh \u1ea3nh. \u0110i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch g\u1eafn nh\u00e3n c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng v\u1edbi th\u00f4ng tin h\u1eefu \u00edch nh\u01b0 t\u00ean nh\u00e3n, h\u00ecnh d\u1ea1ng, m\u00e0u s\u1eafc, k\u1ebft c\u1ea5u ho\u1eb7c c\u00e1c thu\u1ed9c t\u00ednh kh\u00e1c.<\/p>\n
Tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o c\u00f3 kh\u1ea3 n\u0103ng ph\u00e2n lo\u1ea1i h\u00ecnh \u1ea3nh tuy\u1ec7t v\u1eddi. N\u00f3 c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n b\u1ea5t k\u1ef3 \u0111\u1ed1i t\u01b0\u1ee3ng n\u00e0o ch\u1ee9a m\u1ed9t ho\u1eb7c nhi\u1ec1u pixel trong h\u00ecnh \u1ea3nh v\u00e0 c\u0169ng x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c lo\u1ea1i \u0111\u1ed1i t\u01b0\u1ee3ng.<\/p>\n
G\u00e1n nh\u00e3n h\u00ecnh \u1ea3nh r\u1ea5t hi\u1ec7u qu\u1ea3 trong vi\u1ec7c t\u00ecm ki\u1ebfm c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng, n\u00f3 cung c\u1ea5p cho b\u1ee9c \u1ea3nh nh\u1eefng th\u00f4ng tin c\u00f3 gi\u00e1 tr\u1ecb v\u1ec1 c\u00e1c khu v\u1ef1c \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u trong \u1ea3nh.<\/p>\n
5 Lo\u1ea1i G\u00e1n Nh\u00e3n H\u00ecnh \u1ea2nh<\/a> Ph\u1ed5 Bi\u1ebfn<\/strong><\/p>\n C\u00f3 n\u0103m lo\u1ea1i g\u00e1n nh\u00e3n h\u00ecnh \u1ea3nh<\/a> ph\u1ed5 bi\u1ebfn \u0111\u1ec3 nh\u1eadn di\u1ec7n \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 ch\u00fang \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo th\u1ee9 t\u1ef1 \u0111\u1ed9 ph\u1ed5 bi\u1ebfn v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u1ea5t.<\/p>\n V\u1edbi c\u00e1c h\u1ed9p bi\u00ean 2D, ng\u01b0\u1eddi g\u00e1n nh\u00e3n ph\u1ea3i v\u1ebd m\u1ed9t h\u00ecnh h\u1ed9p xung quanh \u0111\u1ed1i t\u01b0\u1ee3ng m\u00e0 h\u1ecd mu\u1ed1n g\u00e1n nh\u00e3n trong h\u00ecnh \u1ea3nh. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed ch\u00ednh x\u00e1c c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng, \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng t\u1ecda \u0111\u1ed9 hai tr\u1ee5c \u1edf g\u00f3c tr\u00ean b\u00ean tr\u00e1i c\u0169ng nh\u01b0 t\u1ecda \u0111\u1ed9 hai tr\u1ee5c \u1edf g\u00f3c d\u01b0\u1edbi b\u00ean ph\u1ea3i c\u1ee7a h\u00ecnh ch\u1eef nh\u1eadt. C\u00e1c h\u1ed9p gi\u1edbi h\u1ea1n th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho vi\u1ec7c nh\u1eadn di\u1ec7n v\u00e0 \u0111\u1ecbnh v\u1ecb \u0111\u1ed1i t\u01b0\u1ee3ng.<\/p>\n <\/p>\n H\u00ecnh kh\u1ed1i, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 h\u1ed9p bi\u00ean 3D, g\u1ea7n gi\u1ed1ng v\u1edbi h\u1ed9p bi\u00ean 2D, ngo\u1ea1i tr\u1eeb vi\u1ec7c ch\u00fang c\u0169ng c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb \u0111\u1ed9 s\u00e2u g\u1ea7n \u0111\u00fang c\u1ee7a c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111ang \u0111\u01b0\u1ee3c g\u00e1n nh\u00e3n. H\u1ed9p bi\u00ean 3D \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ec3n trong c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n ph\u01b0\u01a1ng ti\u1ec7n giao th\u00f4ng t\u1ef1 l\u00e1i, c\u00e1c k\u1ef9 s\u01b0 ph\u1ea7n m\u1ec1m s\u1eed d\u1ee5ng th\u00f4ng tin v\u1ec1 \u0111\u1ed9 s\u00e2u c\u1ee7a h\u1ed9p bi\u00ean \u0111\u1ec3 t\u00ednh to\u00e1n kho\u1ea3ng c\u00e1ch c\u1ee7a c\u00e1c v\u1eadt th\u1ec3 \u0111\u1ebfn ph\u01b0\u01a1ng ti\u1ec7n.<\/p>\n <\/a><\/p>\n Ph\u00e2n lo\u1ea1i h\u00ecnh \u1ea3nh l\u00e0 lo\u1ea1i g\u00e1n nh\u00e3n h\u00ecnh \u1ea3nh x\u00e1c \u0111\u1ecbnh to\u00e0n b\u1ed9 h\u00ecnh \u1ea3nh ch\u1ec9 v\u1edbi m\u1ed9t nh\u00e3n. Vi\u1ec7c cung c\u1ea5p th\u00f4ng tin h\u00ecnh \u1ea3nh n\u00e0y cho c\u00e1c m\u00f4 h\u00ecnh th\u1ecb gi\u00e1c m\u00e1y t\u00ednh s\u1ebd d\u1ea1y cho m\u00f4 h\u00ecnh nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m th\u1ecb gi\u00e1c c\u1ee5 th\u1ec3 d\u00e0nh ri\u00eang cho t\u1eebng lo\u1ea1i \u0111\u1ed1i t\u01b0\u1ee3ng.<\/p>\n \u0110\u00fang nh\u01b0 t\u00ean c\u1ee7a lo\u1ea1i h\u00ecnh g\u00e1n nh\u00e3n n\u00e0y, ng\u01b0\u1eddi g\u00e1n nh\u00e3n s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 \u0111\u01b0\u1eddng cong \u0111\u1ec3 g\u00e1n nh\u00e3n c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng trong \u1ea3nh. T\u1eeb ph\u01b0\u01a1ng ti\u1ec7n giao th\u00f4ng t\u1ef1 \u0111\u1ed9ng v\u00e0 m\u00e1y bay kh\u00f4ng ng\u01b0\u1eddi l\u00e1i \u0111\u1ebfn robot trong nh\u00e0 kho v\u00e0 h\u01a1n th\u1ebf n\u1eefa, g\u00e1n nh\u00e3n h\u00ecnh \u1ea3nh b\u1eb1ng \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 \u0111\u01b0\u1eddng c\u00f4ng r\u1ea5t h\u1eefu \u00edch trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng kh\u00e1c nhau.<\/p>\n \u0110\u00f4i khi kh\u00f4ng th\u1ec3 d\u1ec5 d\u00e0ng g\u00e1n nh\u00e3n c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 h\u00ecnh d\u1ea1ng b\u1ea5t th\u01b0\u1eddng b\u1eb1ng c\u00e1c h\u1ed9p bi\u00ean 2D v\u00e0 3D. G\u00e1n nh\u00e3n \u0111a gi\u00e1c cho ph\u00e9p ng\u01b0\u1eddi g\u00e1n nh\u00e3n \u0111\u00e1nh d\u1ea5u c\u00e1c \u0111i\u1ec3m tr\u00ean m\u1ed7i \u0111\u1ec9nh c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng. K\u1ef9 thu\u1eadt g\u00e1n nh\u00e3n n\u00e0y cho ph\u00e9p \u0111\u00e1nh d\u1ea5u to\u00e0n b\u1ed9 c\u00e1c c\u1ea1nh c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng b\u1ea5t k\u1ec3 h\u00ecnh d\u1ea1ng c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng.<\/p>\n T\u01b0\u01a1ng t\u1ef1 nh\u01b0 h\u1ed9p bi\u00ean, c\u00e1c pixel n\u1eb1m trong c\u00e1c c\u1ea1nh sau \u0111\u00f3 s\u1ebd \u0111\u01b0\u1ee3c g\u1eafn nh\u00e3n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u1ed1i t\u01b0\u1ee3ng trong \u1ea3nh.<\/p>\n Ph\u00e2n v\u00f9ng \u1ea3nh l\u00e0 lo\u1ea1i h\u00ecnh g\u00e1n nh\u00e3n t\u1eebng pixel trong \u1ea3nh. Ph\u00e2n v\u00f9ng \u1ea3nh th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 g\u00e1n nh\u00e3n h\u00ecnh \u1ea3nh giao th\u00f4ng ph\u1ee5c v\u1ee5 cho c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n \u00f4 t\u00f4 t\u1ef1 l\u00e1i. M\u1ed9t t\u00e1c v\u1ee5 \u0111i\u1ec3n h\u00ecnh \u0111\u1ec3 ph\u00e2n v\u00f9ng \u1ea3nh l\u00e0 g\u00e1n nh\u00e3n c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n giao th\u00f4ng, xe \u0111\u1ea1p, ng\u01b0\u1eddi \u0111i b\u1ed9, ch\u01b0\u1edbng ng\u1ea1i v\u1eadt, v\u1ec9a h\u00e8, \u0111\u01b0\u1eddng v\u00e0 t\u00f2a nh\u00e0… M\u1ed7i v\u00f9ng \u1ea3nh th\u01b0\u1eddng \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng m\u1ed9t m\u00e3 m\u00e0u duy nh\u1ea5t. K\u1ebft qu\u1ea3 cu\u1ed1i c\u00f9ng s\u1ebd tr\u00f4ng gi\u1ed1ng nh\u01b0 h\u00ecnh n\u00e0y:<\/p>\n <\/p>\n G\u00e1n nh\u00e3n h\u00ecnh \u1ea3nh<\/a> l\u00e0 m\u1ed9t t\u00e1c v\u1ee5 t\u1ed1n th\u1eddi gian v\u00e0 chi ph\u00ed. Tuy nhi\u00ean, c\u00f3 nhi\u1ec1u c\u00f4ng ty cung c\u1ea5p d\u1ecbch v\u1ee5 g\u00e1n nh\u00e3n h\u00ecnh \u1ea3nh ch\u1ea5t l\u01b0\u1ee3ng cho kh\u00e1ch h\u00e0ng v\u1edbi gi\u00e1 c\u1ea3 h\u1ee3p l\u00fd. Kotwel<\/a> l\u00e0 m\u1ed9t trong nh\u1eefng c\u00f4ng ty nh\u01b0 v\u1eady, m\u1ed9t nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 g\u00e1n nh\u00e3n h\u00ecnh \u1ea3nh ch\u1ea5t l\u01b0\u1ee3ng<\/a> h\u00e0ng \u0111\u1ea7u, gi\u00fap b\u1ea1n ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 chi ph\u00ed cho c\u00f4ng vi\u1ec7c n\u00e0y. T\u1ea1i Kotwel<\/a>, ch\u00fang t\u00f4i c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n g\u00e1n nh\u00e3n v\u00e0 ch\u00fa th\u00edch nhi\u1ec1u d\u1ea1ng d\u1eef li\u1ec7u nh\u01b0: v\u0103n b\u1ea3n, h\u00ecnh \u1ea3nh, video. H\u00e3y li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i ngay h\u00f4m nay \u0111\u1ec3 t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 c\u00e1c gi\u1ea3i ph\u00e1p v\u00e0 d\u1ecbch v\u1ee5 ch\u00fang t\u00f4i mang \u0111\u1ebfn cho kh\u00e1ch h\u00e0ng.<\/p>\n\n
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D\u1ecbch v\u1ee5 g\u00e1n nh\u00e3n h\u00ecnh \u1ea3nh<\/a> ch\u1ea5t l\u01b0\u1ee3ng cao v\u00e0 ch\u00ednh x\u00e1c t\u1ea1i Kotwel<\/strong><\/h4>\n