{"id":367,"date":"2019-09-19T03:19:15","date_gmt":"2019-09-18T20:19:15","guid":{"rendered":"http:\/\/ainoodle.tech\/?p=367"},"modified":"2019-09-19T03:19:15","modified_gmt":"2019-09-18T20:19:15","slug":"chong-gia-mao-bang-anh-video-trong-nhan-dien-khuon-mat-face-anti-spoofing","status":"publish","type":"post","link":"https:\/\/miai.vn\/?p=367","title":{"rendered":"Ch\u1ed1ng gi\u1ea3 m\u1ea1o b\u1eb1ng \u1ea3nh\/video trong nh\u1eadn di\u1ec7n khu\u00f4n m\u1eb7t &#8211; Face Anti spoofing"},"content":{"rendered":"\n<p>Ch\u00e0o m\u1eebng anh em quay l\u1ea1i v\u1edbi blog M\u00ec Ai, h\u00f4m nay ch\u00fang ta s\u1ebd c\u00f9ng nhau \u0111i ti\u1ebfp m\u1ea3ng Computer Vision v\u1edbi ph\u01b0\u01a1ng ph\u00e1p Ch\u1ed1ng gi\u1ea3 m\u1ea1o b\u1eb1ng \u1ea3nh\/video trong nh\u1eadn di\u1ec7n khu\u00f4n m\u1eb7t &#8211; Face Anti spoofing.<\/p>\n\n\n\n<p>Ch\u00fang ta \u0111\u00e3 \u0111i qua 2 b\u00e0i v\u1ec1 nh\u1eadn d\u1ea1ng khu\u00f4n m\u1eb7t v\u1edbi c\u00e1c c\u00f4ng c\u1ee5 t\u1eeb \u0111\u01a1n gi\u1ea3n Harrcascade t\u1edbi ph\u1ee9c t\u1ea1p d\u00f9ng MTCNN v\u00e0 Facenet t\u1ea1i \u0111\u00e2y:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/miai.vn\/2019\/08\/13\/face-recognize-thu-lam-he-thong-cham-cong-bang-nhan-dang-khuon-mat\/\">[Face Recognize] Th\u1eed l\u00e0m h\u1ec7 th\u1ed1ng ch\u1ea5m c\u00f4ng b\u1eb1ng nh\u1eadn d\u1ea1ng khu\u00f4n m\u1eb7t<\/a><\/li><li><a href=\"https:\/\/miai.vn\/2019\/09\/11\/face-recog-2-0-nhan-dien-khuon-mat-trong-video-bang-mtcnn-va-facenet\/\">[Face Recog 2.0] Nh\u1eadn di\u1ec7n khu\u00f4n m\u1eb7t trong video b\u1eb1ng MTCNN v\u00e0 Facenet<\/a><\/li><\/ul>\n\n\n\n<p>Sau 2 b\u00e0i \u0111\u00f3, ch\u00fang ta \u0111\u00e3 c\u00f3 th\u1ec3 x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c m\u1ed9t h\u1ec7 th\u1ed1ng nh\u1eadn di\u1ec7n khu\u00f4n m\u1eb7t c\u0169ng g\u1ecdi l\u00e0 kh\u00e1 \u1ed5n, c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng v\u00e0o th\u1ef1c t\u1ebf. Tuy nhi\u00ean, c\u00f3 m\u1ed9t v\u1ea5n \u0111\u1ec1 n\u1ea3y sinh l\u00e0 ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u1ea3nh\/video \u0111\u1ec3 \u0111\u01b0a v\u00e0o camera nh\u1eadn di\u1ec7n nh\u1eb1m &#8220;l\u1eeba&#8221; h\u1ec7 th\u1ed1ng nh\u1eadn di\u1ec7n c\u1ee7a ch\u00fang ta. Do v\u1eady h\u00f4m nay ch\u00fang ta s\u1ebd t\u00ecm c\u00e1ch gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/p>\n\n\n\n<style>.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }<\/style><div class=\"embed-container\"><iframe src=\"https:\/\/www.youtube.com\/embed\/\/mi7G27psMRw\" frameborder=\"0\" allowfullscreen=\"\"><\/iframe><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Ph\u1ea7n 1. C\u00e1c ph\u01b0\u01a1ng th\u1ee9c nh\u1eadn di\u1ec7n gi\u1ea3 m\u1ea1o b\u1eb1ng \u1ea3nh\/video<\/h2>\n\n\n\n<p>V\u1ec1 v\u1ea5n \u0111\u1ec1 n\u00e0y, hi\u1ec7n theo hi\u1ec3u bi\u1ebft c\u1ee7a m\u00ecnh th\u00ec c\u00f3 nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p nh\u01b0: ph\u00e1t hi\u1ec7n ch\u1edbp m\u1eaft, ph\u00e1t hi\u1ec7n chuy\u1ec3n \u0111\u1ed9ng \u0111\u1ea7u, h\u01b0\u1edbng d\u1eabn kh\u00e1ch h\u00e0ng th\u1ef1c hi\u1ec7n m\u1ed9t s\u1ed1 thao t\u00e1c ng\u1eabu nhi\u00ean khi nh\u1eadn d\u1ea1ng (nh\u1eb1m tr\u00e1nh kh\u00e1ch h\u00e0ng quay video tr\u01b0\u1edbc) v\u00e0 nh\u1eadn di\u1ec7n \u1ea3nh th\u1eadt\/fake b\u1eb1ng CNN Classifier.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/cvlab.cse.msu.edu\/images\/PAD_CNN.png\" alt=\"\"\/><figcaption>Ngu\u1ed3n: http:\/\/cvlab.cse.msu.edu<\/figcaption><\/figure>\n\n\n\n<p>Trong b\u00e0i n\u00e0y m\u00ecnh s\u1ebd guide c\u00e1c b\u1ea1n l\u00e0m theo c\u00e1ch CNN Classifier nh\u00e9. C\u00e1ch n\u00e0y c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0: nhanh g\u1ecdn, kh\u00e1ch h\u00e0ng \u0111\u1ee1 phi\u1ec1n khi nh\u1eadn d\u1ea1ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ph\u1ea7n 2. Chu\u1ea9n b\u1ecb nguy\u00ean li\u1ec7u<\/h2>\n\n\n\n<p><strong>Nh\u01b0 th\u01b0\u1eddng l\u1ec7, ch\u00fang ta l\u1ea1i t\u1ea1o th\u01b0 m\u1ee5c MiAI_Anti_Fake<\/strong> \u0111\u1ec3 l\u01b0u c\u00e1c nguy\u00ean v\u1eadt li\u1ec7u c\u1ee7a b\u00e0i n\u00e0y nh\u00e9. Sau khi t\u1ea1o xong, c\u00e1c b\u1ea1n chuy\u1ec3n v\u00e0o th\u01b0 m\u1ee5c \u0111\u00f3 v\u00e0 g\u00f5 l\u1ec7nh git quen thu\u1ed9c:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>git clone https:\/\/github.com\/thangnch\/face_anti_spoofing .<\/code><\/pre>\n\n\n\n<p>Ch\u00fa \u00fd d\u1ea5u ch\u1ea5m cu\u1ed1i l\u1ec7nh nh\u00e9 c\u00e1c b\u1ea1n. Sau khi clone xong c\u00e1c b\u1ea1n s\u1ebd th\u1ea5y c\u00e1c file c\u1ee7a repo trong th\u01b0 m\u1ee5c MiAI_Anti_Fake l\u00e0 okie.<\/p>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">Ti\u1ebfp theo c\u00e1c b\u1ea1n chu\u1ea9n b\u1ecb gi\u00fap m\u00ecnh d\u1eef li\u1ec7u train<\/span><\/strong>. V\u1edbi b\u00e0i n\u00e0y, d\u1eef li\u1ec7u train g\u1ed3m c\u00f3:<\/p>\n\n\n\n<p>M\u1ed9t video quay th\u1ef1c t\u1ebf m\u1eb7t c\u1ee7a c\u00e1c b\u1ea1n b\u1eb1ng webcam c\u1ee7a m\u00e1y t\u00ednh nh\u01b0 video b\u00ean d\u01b0\u1edbi c\u1ee7a m\u00ecnh. Quay kho\u1ea3ng 60 gi\u00e2y, trong l\u00fac quay th\u00ec \u0111\u1ea7u quay tr\u00e1i, ph\u1ea3i, l\u00ean xu\u1ed1ng \u0111\u1ee7 c\u00e1c g\u00f3c nh\u00e9.  File n\u00e0y c\u00e1c <strong>b\u1ea1n l\u01b0u th\u00e0nh file real.mp4 t\u1ea1i th\u01b0 m\u1ee5c MiAI_Anti_Fake\/videos.<\/strong><\/p>\n\n\n\n<script async=\"\" src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\n<!-- InPost_Ad -->\n<ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-5095883280136027\" data-ad-slot=\"7735063137\" data-ad-format=\"auto\" data-full-width-responsive=\"true\"><\/ins>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"[M\u00ec AI] Video quay th\u1eadt b\u1eb1ng webcam\" width=\"860\" height=\"645\" src=\"https:\/\/www.youtube.com\/embed\/ujFivhwhO2Q?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Ti\u1ebfp \u0111\u00f3, c\u00e1c b\u1ea1n g\u1eedi c\u00e1i video v\u1eeba quay sang \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng, c\u00e1c b\u1ea1n \u0111\u01b0a \u0111i\u1ec7n tho\u1ea1i v\u00e0o webcam, b\u1eadt play file video v\u00e0 th\u1ef1c hi\u1ec7n quay l\u1ea1i m\u1eb7t c\u00e1c b\u1ea1n trong \u0111i\u1ec7n tho\u1ea1i nh\u01b0 video b\u00ean d\u01b0\u1edbi. File n\u00e0y c\u00e1c <strong>b\u1ea1n l\u01b0u th\u00e0nh file fake.mp4 t\u1ea1i th\u01b0 m\u1ee5c MiAI_Anti_Fake\/videos.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"[M\u00ec AI] Video gi\u1ea3 m\u1ea1o b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i\" width=\"860\" height=\"645\" src=\"https:\/\/www.youtube.com\/embed\/1qpii5xkego?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Xong r\u1ed3i, c\u00e1c b\u1ea1n h\u00e3y ch\u00fa \u00fd l\u00e0m sao \u0111\u1ec3 c\u00e1c video real.mp4 v\u00e0 fake.mp4 ch\u1ec9 c\u00f3 1 khu\u00f4n m\u1eb7t duy nh\u1ea5t nh\u00e9. V\u00ed d\u1ee5 khi quay file fake.mp4 c\u00e1c b\u1ea1n \u0111\u1eebng \u0111\u1ec3 khu\u00f4n m\u1eb7t th\u1eadt c\u1ee7a m\u00ecnh l\u1ecdt v\u00e0o khung h\u00ecnh, n\u1ebfu c\u00f3 l\u1ecdt v\u00e0o th\u00ec c\u00e1c b\u1ea1n h\u00e3y c\u1eaft b\u1ecf \u0111o\u1ea1n \u1ea5y \u0111i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ph\u1ea7n 3. Ti\u1ec1n x\u1eed l\u00fd d\u1eef li\u1ec7u<\/h2>\n\n\n\n<p>\u1ede b\u01b0\u1edbc tr\u01b0\u1edbc ch\u00fang ta \u0111\u00e3 c\u00f3 2 file real.mp4 v\u00e0 fake.mp4 r\u1ed3i. Sang b\u01b0\u1edbc n\u00e0y ch\u00fang ta s\u1ebd ti\u1ec1n x\u1eed l\u00fd \u0111\u1ec3 l\u00e0m 2 vi\u1ec7c:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>T\u00e1ch c\u00e1c video n\u00f3i tr\u00ean th\u00e0nh c\u00e1c frame<\/li><li>C\u1eaft khu\u00f4n m\u1eb7t trong c\u00e1c frame v\u00e0 l\u01b0u v\u00e0o 2 th\u01b0 m\u1ee5c fake v\u00e0 real ri\u00eang \u0111\u1ec3 ph\u1ee5c v\u1ee5 c\u00f4ng t\u00e1c train.<\/li><\/ul>\n\n\n\n<p>Ch\u00fang ta ti\u1ebfn h\u00e0nh ti\u1ec1n x\u1eed l\u00fd file real.mp4 tr\u01b0\u1edbc b\u1eb1ng l\u1ec7nh sau:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>python face_extract.py --input videos\/real.mp4 --output dataset\/real<\/code><\/pre>\n\n\n\n<p>Input l\u00e0 file video, output l\u00e0 th\u01b0 m\u1ee5c s\u1ebd l\u01b0u c\u00e1c khu\u00f4n m\u1eb7t \u0111\u01b0\u1ee3c c\u1eaft ra \u0111\u1ec3 train, \u1edf \u0111\u00e2y l\u00e0 dataset\/real (c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra th\u01b0 m\u1ee5c xem c\u00f3 file ch\u01b0a nh\u00e9).<\/p>\n\n\n\n<p>Ti\u1ebfp \u0111\u1ebfn file fake.mp4, ch\u00fang ta c\u0169ng ch\u1ea1y l\u1ec7nh t\u01b0\u01a1ng t\u1ef1 th\u00f4i:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>python face_extract.py --input videos\/fake.mp4 --output dataset\/fake<\/code><\/pre>\n\n\n\n<p>R\u1ed3i, v\u1eady l\u00e0 xong b\u01b0\u1edbc ti\u1ec1n x\u1eed l\u00fd, ch\u00fang ta c\u00f9ng sang b\u01b0\u1edbc sau nh\u00e9.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh3.googleusercontent.com\/auEU0MZHOf4qDc6x5zINmTEDKhGesaJcaViINsA6YVfDrkDnXJa4AjuLJ4_D7b7aV87ISIMrD_O22DKKg_gzdgUzsJtbwtiJOOA9k1qltqLKNena01Ccd9G9p6bcxaFAV8tj1Wk7J9Y2arSWhKokXUx4k6Z0sJoG4hfTD1ZU12qX6i-mftpAJ0ZsGSkqRFjPEE5grRZlwC4A2UC9W5xklTYuhFJB1G0cQDF6HjSYZq-Nw2g6nMEGOnhnkJB6a-XY9jxB3kcIzen-5XNmjkc5uC4eb2_I0TzJBE4GxK314q2PWm29gQw9LRT9tPBxB1wO7w_PHi9iScpvvM09KdhZj50x9kRuIapXnWgbKbcQUoxCjz7kNuXF5C79P8Y49wGMtzklpYTSXI5Co-gALcLhjF4X6UxXH0s1FYiHJDqGxDQGWflj-qD4gRJyORcTWvCbSJj8TKSxqXJxJkjul-GxiUlQQbDMnFylhY0FvvDB3qEgbX46L44cdft8eScirecu-8cPoTe-vGTnb_DRKxun53bv6uyUjxDtCAtrmy3QXPSJqV6QgXA_5DHdbY94qht47MvnohP-7Veq7Ss-7zJB-TEG2eLopvwM2gEqo2nC7olZwTqT0wx92lSki36DK6220ocwG5nTt9J02sQ_0ANnxbHPkDsv_m93CqX51Oia4zDEumjm2YRO7hEAW7igWYzVVLSxVn4j9yfzqd76MiW_z-C6OaD6J_b33_r6te3PE9f7cnJNHA=w1068-h658-no\" alt=\"\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Ph\u1ea7n 4. Train model Ch\u1ed1ng gi\u1ea3 m\u1ea1o <\/h2>\n\n\n\n<p>M\u1ecdi th\u1ee9 \u0111\u00e3 xong, ch\u00fang ta \u0111\u00e3 c\u00f3 2 th\u01b0 m\u1ee5c fake v\u00e0 real ch\u1ee9a \u0111\u1ea7y khu\u00f4n m\u1eb7t trong th\u01b0 m\u1ee5c MiAI_Anti_Fake\/dataset. V\u00e0 b\u00e2y gi\u1edd l\u00e0 train cho model c\u1ee7a ch\u00fang ta hi\u1ec3u \u0111\u00e2u l\u00e0 fake, \u0111\u00e2u l\u00e0 real th\u00f4i. C\u00e1c b\u1ea1n ch\u1ea1y l\u1ec7nh sau:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>python train_liveness.py<\/code><\/pre>\n\n\n\n<script async=\"\" src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\n<!-- InPost_Ad -->\n<ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-5095883280136027\" data-ad-slot=\"7735063137\" data-ad-format=\"auto\" data-full-width-responsive=\"true\"><\/ins>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script>\n\n\n\n<p>R\u1ed3i, b\u00e2y gi\u1edd c\u00e1c b\u1ea1n \u0111i pha m\u1ed9t ly cafe v\u00e0 th\u01b0\u1edfng th\u1ee9c \u0111i, h\u01a1i &#8220;\u0111\u1ea7u l\u00e2u&#8221; \u0111\u1ea5y. C\u00e1c b\u1ea1n \u0111\u1ee3i \u0111\u1ebfn khi n\u00e0o tr\u00ean m\u00e0n h\u00ecnh hi\u1ec3n th\u1ecb \u0111o\u1ea1n &#8220;INFO] serializing network to &#8230;.&#8221; l\u00e0 \u0111\u00e3 train th\u00e0nh c\u00f4ng r\u1ed3i \u0111\u00f3. \u0110\u1ec3 \u00fd trong th\u01b0 m\u1ee5c c\u00e1c b\u1ea1n s\u1ebd th\u1ea5y xu\u1ea5t hi\u1ec7n 2 file m\u1edbi: le.pickle (file nh\u00e3n) v\u00e0 liveness.model (file model).<\/p>\n\n\n\n<p>Xong r\u1ed3i, gi\u1edd \u0111\u1ebfn l\u00fac t\u1eadn h\u01b0\u1edfng th\u00e0nh qu\u1ea3 th\u00f4i n\u00e0o. Ch\u00fa \u00fd, m\u00ecnh c\u00f3 \u0111\u1ec3 s\u1eb5n file model \u0111\u1ec3 c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 d\u00f9ng th\u1eed, tuy nhi\u00ean m\u00ecnh ngh\u0129 l\u00e0 n\u00f3 kh\u00f4ng hi\u1ec7u qu\u1ea3 \u0111\u00e2u v\u00ec kh\u00e1c nhau v\u1ec1 m\u00f4i tr\u01b0\u1eddng, camera&#8230;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ph\u1ea7n 5. Ki\u1ec3m th\u1eed model Ch\u1ed1ng gi\u1ea3 m\u1ea1o c\u00e1i n\u00e0o<\/h2>\n\n\n\n<p>B\u00e2y gi\u1edd cac b\u1ea1n ch\u1ea1y file liveness_demo.py b\u1eb1ng l\u1ec7nh sau:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>python liveness_demo.py<\/code><\/pre>\n\n\n\n<p>C\u1eeda s\u1ed5 webcam s\u1ebd hi\u1ec7n ra v\u00e0 c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 test th\u1eed nh\u00e9.<\/p>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"[M\u00ec AI] Demo ch\u1ed1ng gi\u1ea3 m\u1ea1o khu\u00f4n m\u1eb7t b\u1eb1ng \u1ea3nh\/video\" width=\"860\" height=\"645\" src=\"https:\/\/www.youtube.com\/embed\/4soTJSQkLEY?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption>H\u00f4m \u1ea5y vui qu\u00e1 n\u00ean c\u1edfi tr\u1ea7n, mong c\u00e1c b\u1ea1n th\u00f4ng c\u1ea3m nh\u00e9! \ud83d\ude00<\/figcaption><\/figure>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">Ch\u00fa \u00fd:<\/span><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>B\u00e0i n\u00e0y m\u00ecnh m\u1edbi train v\u1edbi ri\u00eang khu\u00f4n m\u1eb7t c\u1ee7a m\u00ecnh \u0111\u1ec3 th\u1eed nghi\u1ec7m, c\u00e1c b\u1ea1n mu\u1ed1n chu\u1ea9n h\u01a1n th\u00ec train v\u1edbi t\u1ea7m 10 khu\u00f4n m\u1eb7t \u0111\u1ee7 c\u00e1c gi\u1edbi t\u00ednh, tu\u1ed5i t\u00e1c, m\u00e0u da kh\u00e1c nhau \u0111\u1ec3 model \u0111\u01b0\u1ee3c general h\u01a1n nh\u00e9.<\/li><li>Ngo\u00e0i ra b\u00e0i n\u00e0y m\u00ecnh ch\u1ec9 train v\u1edbi video play tr\u00ean \u0111i\u1ec7n tho\u1ea1i, c\u00e1c b\u1ea1n n\u00ean train th\u00eam v\u1edbi tr\u01b0\u1eddng h\u1ee3p in \u1ea3nh ra gi\u1ea5y n\u1eefa nh\u00e9. C\u00e1ch l\u00e0m c\u0169ng t\u01b0\u01a1ng t\u1ef1 th\u00f4i.<\/li><\/ul>\n\n\n\n<p>Ch\u00fac c\u00e1c b\u1ea1n th\u00e0nh c\u00f4ng. N\u1ebfu c\u00f3 v\u01b0\u1edbng m\u1eafc hay kh\u00f3 kh\u0103n g\u00ec khi tri\u1ec3n khai, c\u00e1c b\u1ea1n c\u1ee9 post l\u00ean Group M\u00ec Ai \u0111\u1ec3 c\u00f9ng trao \u0111\u1ed5i, chia s\u1ebb nh\u00e9 &#8211; Group trao \u0111\u1ed5i, chia s\u1ebb: <a rel=\"noreferrer noopener\" aria-label=\"https:\/\/www.facebook.com\/groups\/miaigroup (opens in a new tab)\" href=\"https:\/\/www.facebook.com\/groups\/miaigroup\" target=\"_blank\">https:\/\/www.facebook.com\/groups\/miaigroup<\/a>&nbsp;<\/p>\n\n\n\n<p><strong><em>H\u00e3y tham gia c\u00f9ng c\u1ed9ng \u0111\u1ed3ng M\u00ec AI nh\u00e9:<\/em><\/strong><\/p>\n\n\n\n<p>Fanpage: <a rel=\"noreferrer noopener\" aria-label=\"http:\/\/facebook.com\/miaiblog (opens in a new tab)\" href=\"http:\/\/facebook.com\/miaiblog\" target=\"_blank\">http:\/\/facebook.com\/miaiblog<\/a><br>Group trao \u0111\u1ed5i, chia s\u1ebb: <a rel=\"noreferrer noopener\" aria-label=\"https:\/\/www.facebook.com\/groups\/miaigroup (opens in a new tab)\" href=\"https:\/\/www.facebook.com\/groups\/miaigroup\" target=\"_blank\">https:\/\/www.facebook.com\/groups\/miaigroup<\/a><br>Website: <a rel=\"noreferrer noopener\" aria-label=\"https:\/\/miai.vn (opens in a new tab)\" href=\"https:\/\/miai.vn\/\" target=\"_blank\">https:\/\/miai.vn\/<\/a><br>Youtube: <a rel=\"noreferrer noopener\" aria-label=\"http:\/\/bit.ly\/miaiyoutube (opens in a new tab)\" href=\"http:\/\/bit.ly\/miaiyoutube\" target=\"_blank\">http:\/\/bit.ly\/miaiyoutube<\/a><\/p>\n\n\n\n<p>Ngu\u1ed3n tham kh\u1ea3o: https:\/\/www.pyimagesearch.com\/2019\/03\/11\/liveness-detection-with-opencv<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ch\u00e0o m\u1eebng anh em quay l\u1ea1i v\u1edbi blog M\u00ec Ai, h\u00f4m nay ch\u00fang ta s\u1ebd c\u00f9ng nhau \u0111i ti\u1ebfp m\u1ea3ng Computer Vision v\u1edbi ph\u01b0\u01a1ng ph\u00e1p Ch\u1ed1ng gi\u1ea3 m\u1ea1o b\u1eb1ng \u1ea3nh\/video trong nh\u1eadn di\u1ec7n khu\u00f4n m\u1eb7t &#8211; Face Anti spoofing. Ch\u00fang ta \u0111\u00e3 \u0111i qua 2 b\u00e0i v\u1ec1 nh\u1eadn d\u1ea1ng khu\u00f4n m\u1eb7t v\u1edbi c\u00e1c c\u00f4ng c\u1ee5 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[19,83,84,26,21,79,80,35,81,23,82],"class_list":["post-367","post","type-post","status-publish","format-standard","hentry","category-computer-vision","tag-ai","tag-anti-fake","tag-anti-spoofing","tag-computer-vision","tag-deep-learning","tag-face-detection","tag-face-recognition","tag-face-recognize","tag-facenet","tag-machine-learning","tag-mtcnn"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ch\u1ed1ng gi\u1ea3 m\u1ea1o khu\u00f4n m\u1eb7t b\u1eb1ng \u1ea3nh\/video trong nh\u1eadn d\u1ea1ng - M\u00ec AI<\/title>\n<meta name=\"description\" content=\"Ch\u00e0o m\u1eebng anh em quay l\u1ea1i v\u1edbi blog M\u00ec Ai, h\u00f4m nay ch\u00fang ta s\u1ebd c\u00f9ng nhau t\u00ecm hi\u1ec3u ph\u01b0\u01a1ng ph\u00e1p Ch\u1ed1ng gi\u1ea3 m\u1ea1o b\u1eb1ng \u1ea3nh\/video trong nh\u1eadn di\u1ec7n khu\u00f4n m\u1eb7t.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/miai.vn\/?p=367\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ch\u1ed1ng gi\u1ea3 m\u1ea1o khu\u00f4n m\u1eb7t b\u1eb1ng \u1ea3nh\/video trong nh\u1eadn d\u1ea1ng - M\u00ec AI\" \/>\n<meta property=\"og:description\" content=\"Ch\u00e0o m\u1eebng anh em quay l\u1ea1i v\u1edbi blog M\u00ec Ai, h\u00f4m nay ch\u00fang ta s\u1ebd c\u00f9ng nhau t\u00ecm hi\u1ec3u ph\u01b0\u01a1ng ph\u00e1p Ch\u1ed1ng gi\u1ea3 m\u1ea1o b\u1eb1ng \u1ea3nh\/video trong nh\u1eadn di\u1ec7n khu\u00f4n m\u1eb7t.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/miai.vn\/?p=367\" \/>\n<meta property=\"og:site_name\" content=\"M\u00ec AI\" \/>\n<meta property=\"article:published_time\" content=\"2019-09-18T20:19:15+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/cvlab.cse.msu.edu\/images\/PAD_CNN.png\" \/>\n<meta name=\"author\" content=\"Ch\u1ee7 ti\u1ec7m M\u00ec\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Ch\u1ee7 ti\u1ec7m M\u00ec\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/miai.vn\\\/?p=367#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/miai.vn\\\/?p=367\"},\"author\":{\"name\":\"Ch\u1ee7 ti\u1ec7m M\u00ec\",\"@id\":\"https:\\\/\\\/miai.vn\\\/#\\\/schema\\\/person\\\/cc8bc24bb90bd3f596add82f3a59948c\"},\"headline\":\"Ch\u1ed1ng gi\u1ea3 m\u1ea1o b\u1eb1ng \u1ea3nh\\\/video trong nh\u1eadn di\u1ec7n khu\u00f4n m\u1eb7t &#8211; 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