{"id":554,"date":"2024-01-24T08:00:33","date_gmt":"2024-01-24T00:00:33","guid":{"rendered":"https:\/\/www.zhoubin.asia\/?p=554"},"modified":"2024-01-26T10:41:12","modified_gmt":"2024-01-26T02:41:12","slug":"yolact","status":"publish","type":"post","link":"https:\/\/www.zhoubin.asia\/index.php\/2024\/01\/24\/yolact\/","title":{"rendered":"[\u5206\u5272\u6a21\u578b]YOLACT"},"content":{"rendered":"

YOLACT \u67b6\u6784\u4e0e\u7279\u70b9<\/h1>\n

YOLACT\uff08You Only Look At CoefficienTs\uff09\u662f\u4e00\u79cd\u7528\u4e8e\u5b9e\u4f8b\u5206\u5272\u7684\u76ee\u6807\u68c0\u6d4b\u6a21\u578b\uff0c\u5177\u6709\u521b\u65b0\u7684\u67b6\u6784\u3002\u4ee5\u4e0b\u662f YOLACT \u67b6\u6784\u7684\u7b80\u8981\u4ecb\u7ecd\uff1a
\n\"\"<\/p>\n

    \n
  1. \n

    \u4e3b\u5e72\u7f51\u7edc\uff08Backbone\uff09\uff1a<\/h3>\n

    YOLACT \u4f7f\u7528\u4e00\u79cd\u5f3a\u5927\u7684\u4e3b\u5e72\u7f51\u7edc\uff08backbone network\uff09\u6765\u63d0\u53d6\u56fe\u50cf\u7279\u5f81\u3002\u901a\u5e38\u91c7\u7528\u7684\u662f ResNet \u6216\u8005 ResNeXt \u8fd9\u6837\u7684\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u4f5c\u4e3a\u4e3b\u5e72\u7f51\u7edc\u3002\u8fd9\u4e2a\u4e3b\u5e72\u7f51\u7edc\u8d1f\u8d23\u4ece\u8f93\u5165\u56fe\u50cf\u4e2d\u63d0\u53d6\u9ad8\u7ea7\u522b\u7684\u7279\u5f81\uff0c\u4ee5\u4fbf\u540e\u7eed\u7684\u4efb\u52a1\u5904\u7406\u3002<\/li>\n

  2. \n

    FPN\uff08Feature Pyramid Network\uff09\uff1a<\/h3>\n

    YOLACT \u5f15\u5165\u4e86\u7279\u5f81\u91d1\u5b57\u5854\u7f51\u7edc\uff08FPN\uff09\uff0c\u7528\u4e8e\u5904\u7406\u4e0d\u540c\u5c3a\u5ea6\u4e0a\u7684\u76ee\u6807\u3002FPN \u901a\u8fc7\u5728\u4e0d\u540c\u5c42\u7ea7\u4e0a\u5efa\u7acb\u7279\u5f81\u91d1\u5b57\u5854\uff0c\u4f7f\u6a21\u578b\u80fd\u591f\u5728\u4e0d\u540c\u5c3a\u5ea6\u4e0a\u68c0\u6d4b\u76ee\u6807\uff0c\u63d0\u9ad8\u4e86\u5bf9\u5c0f\u76ee\u6807\u548c\u8fdc\u5904\u76ee\u6807\u7684\u68c0\u6d4b\u80fd\u529b\u3002<\/li>\n

  3. \n

    CoefNet\uff1a<\/h3>\n

    YOLACT \u7684\u6838\u5fc3\u662f “CoefNet”\uff0c\u5373\u7ebf\u6027\u7ec4\u5408\u7cfb\u6570\u7f51\u7edc\u3002\u8fd9\u4e2a\u7f51\u7edc\u5b66\u4e60\u5e76\u9884\u6d4b\u7528\u4e8e\u5b9e\u4f8b\u5206\u5272\u7684\u7ebf\u6027\u7ec4\u5408\u7cfb\u6570\u3002\u8fd9\u4e9b\u7cfb\u6570\u88ab\u7528\u6765\u8ba1\u7b97\u76ee\u6807\u5b9e\u4f8b\u7684\u539f\u578b\uff08prototype\uff09\u7279\u5f81\uff0c\u4ece\u800c\u8868\u793a\u76ee\u6807\u7684\u5171\u4eab\u7279\u5f81\u3002
    \n\"\"<\/p>\n

      \n
    • \u7528\u4e8e\u9884\u6d4b\u8d28\u91cf\u66f4\u9ad8\u7684prototype mask\uff0c\u4e3a\u4e86\u80fd\u66f4\u597d\u7684\u9884\u6d4b\u5c0f\u7269\u4f53\u3002\u5176\u8f93\u5165\u662f\u91c7\u7528 FPN \u7684 P3\uff0c\u8f93\u51fa mask \u7ef4\u5ea6\u4e3a 138x138x32 (k \u9884\u8bbe\u503c\u4e3a 32)\u3002<\/em><\/li>\n
    • \u56fe\u4e2d18\u6307\u7684\u662f Mask RCNN<\/em><\/li>\n<\/ul>\n<\/li>\n
    • \n

      Prototype Masks\uff1a<\/h3>\n

      YOLACT \u4f7f\u7528\u5b66\u4e60\u5230\u7684\u7cfb\u6570\u7ed3\u5408\u539f\u578b\u7279\u5f81\u751f\u6210\u6bcf\u4e2a\u76ee\u6807\u5b9e\u4f8b\u7684\u539f\u578b\u63a9\u819c\u3002\u8fd9\u4e9b\u539f\u578b\u63a9\u819c\u88ab\u7528\u4e8e\u8868\u793a\u76ee\u6807\u7684\u5f62\u72b6\u4fe1\u606f\uff0c\u5b9e\u73b0\u5b9e\u4f8b\u5206\u5272\u3002<\/li>\n

    • \n

      \u9884\u6d4b\u5934\uff08Prediction Heads\uff09\uff1a<\/h3>\n

      YOLACT \u5305\u542b\u591a\u4e2a\u9884\u6d4b\u5934\uff0c\u5206\u522b\u7528\u4e8e\u8f93\u51fa\u76ee\u6807\u7684\u7c7b\u522b\u3001\u8fb9\u754c\u6846\u548c\u63a9\u819c\u4fe1\u606f\u3002\u8fd9\u4e9b\u9884\u6d4b\u5934\u4e00\u8d77\u6784\u6210\u4e86 YOLACT \u7684\u7efc\u5408\u8f93\u51fa\uff0c\u5b9e\u73b0\u4e86\u76ee\u6807\u68c0\u6d4b\u548c\u5b9e\u4f8b\u5206\u5272\u4efb\u52a1\u3002<\/p>\n

      \"\"
      \n\u5176\u8f93\u5165\u662f FPN \u7684 P3~P7\uff0c\u8f93\u51fa\u4e3a\u4e09\u9879: class, bndBox, Mask Coefficients\uff0c\u5176\u4e2d Mask Coefficients \u7528\u4e8e prototype mask (Protonet \u8f93\u51fa\uff0c\u539f\u578b mask) \u8fdb\u884c\u52a0\u6743\u3002<\/em>
      \n\u6b64\u5916\uff0c\u4e3a\u4e86\u66f4\u597d\u5730\u548c prototype mask \u878d\u5408\uff0c\u4f1a\u5148\u5bf9 Mask Coefficients \u8fdb\u884ctanh\uff0c\u4f7f\u5176\u503c\u66f4\u52a0\u7a33\u5b9a\u3002<\/em>
      \n\u5176\u4e2dk\u4e3a32\uff08\u9884\u8bbe\u503c\uff09\uff0c a\u4e3a\u6240\u6709\u7684P3~P7 \u7684anchor \u6570\u91cf\u3002<\/em><\/li>\n

    • \n

      \u635f\u5931\u51fd\u6570\uff1a<\/h3>\n

      YOLACT \u4f7f\u7528\u591a\u4efb\u52a1\u635f\u5931\u51fd\u6570\uff0c\u5305\u62ec\u76ee\u6807\u7c7b\u522b\u635f\u5931\u3001\u76ee\u6807\u8fb9\u754c\u6846\u635f\u5931\u548c\u5b9e\u4f8b\u5206\u5272\u63a9\u819c\u635f\u5931\u3002\u8fd9\u4e9b\u635f\u5931\u51fd\u6570\u5171\u540c\u8bad\u7ec3\u6a21\u578b\uff0c\u4f7f\u5176\u80fd\u591f\u5728\u7efc\u5408\u4efb\u52a1\u4e2d\u53d6\u5f97\u826f\u597d\u7684\u6027\u80fd\u3002<\/li>\n

    • \n

      \u6c47\u603b\u5f62\u6210\u5206\u5272\u7ed3\u679c<\/h3>\n<\/li>\n<\/ol>\n

      \"\"<\/p>\n

        \n
      • \u5c06prototype mask \u4e0e Fast NMS \u540e\u7684 Mask Coefficients \u8fdb\u884c\u7ec4\u5408\u5f97\u5230\u6700\u7ec8\u7684Mask<\/em><\/li>\n
      • \u5728 FPN \u7684 input feature map (P3~P7) \u4e2d\u6bcf\u4e2agrid \u4f1a\u751f\u6210 3 \u4e2a Anchor\uff0c\u6bcf\u4e2a Anchor \u9762\u79ef\u90fd\u662f\u76f8\u540c\u5c3a\u5bf8\uff0c\u5206\u5225\u4e3a [24, 48, 96, 192, 384]\uff0c\u5176\u957f\u5bbd\u6bd4 (aspect ratios) \u4f1a\u6839\u636e 1:1\u30011:2\u30012:1 \u6bd4\u4f8b\u8c03\u6574\u3002<\/em><\/li>\n<\/ul>\n

        <\/p>\n

        \u4f18\u70b9<\/h2>\n
          \n
        1. \n

          \u5feb\u901f\u901f\u5ea6\uff1a<\/h3>\n

          YOLACT \u662f\u4e00\u79cd\u5355\u9636\u6bb5\uff08one-stage\uff09\u76ee\u6807\u68c0\u6d4b\u6a21\u578b\uff0c\u5176\u9884\u6d4b\u8fc7\u7a0b\u662f\u4e00\u4e2a\u77e9\u9635\u64cd\u4f5c\uff0c\u56e0\u6b64\u5177\u6709\u8f83\u5feb\u7684\u63a8\u7406\u901f\u5ea6\u3002<\/li>\n

        2. \n

          \u9ad8\u8d28\u91cf\u7684\u5b9e\u4f8b\u5206\u5272\uff1a<\/h3>\n

          YOLACT \u4f7f\u7528\u751f\u6210\u539f\u578b\u63a9\u819c\u548c\u7cfb\u6570\u7684\u601d\u8def\uff0c\u80fd\u591f\u751f\u6210\u9ad8\u8d28\u91cf\u7684\u5b9e\u4f8b\u5206\u5272\u63a9\u819c\u3002\u901a\u8fc7\u5229\u7528\u5171\u4eab\u7279\u5f81\u548c\u7ebf\u6027\u7ec4\u5408\uff0c\u5b9e\u73b0\u4e86\u5bf9\u76ee\u6807\u7684\u51c6\u786e\u8868\u793a\u3002<\/li>\n

        3. \n

          \u666e\u9002\u6027\u5f3a\uff1a<\/h3>\n

          YOLACT \u7684\u601d\u8def\u53ef\u4ee5\u5e94\u7528\u4e8e\u8bb8\u591a\u6d41\u884c\u7684\u68c0\u6d4b\u5668\uff0c\u8fd9\u4f7f\u5f97\u5176\u5728\u4e0d\u540c\u4efb\u52a1\u548c\u573a\u666f\u4e2d\u5177\u6709\u8f83\u5f3a\u7684\u9002\u5e94\u6027\u3002<\/li>\n<\/ol>\n

          \u7f3a\u9677<\/h2>\n
            \n
          1. \n

            \u6027\u80fd\u76f8\u5bf9\u8f83\u4f4e\uff1a<\/h3>\n

            \u57282020\u5e74\uff0cYOLACT \u7684\u6027\u80fd\u76f8\u5bf9\u8f83\u4f4e\uff0c\u5c24\u5176\u5728\u5b9e\u4f8b\u5206\u5272\u4efb\u52a1\u7684\u51c6\u786e\u7387\u4e0a\u8868\u73b0\u4e0d\u5982\u4e00\u4e9b\u5176\u4ed6\u5148\u8fdb\u7684\u5b9e\u4f8b\u5206\u5272\u65b9\u6cd5\u3002<\/li>\n

          2. \n

            \u5b9e\u65f6\u6027\u548c\u51c6\u786e\u7387\u517c\u5e76\u7684\u6311\u6218\uff1a<\/h3>\n

            \u5927\u591a\u6570\u4efb\u52a1\u9700\u8981\u5b9e\u65f6\u6027\u548c\u51c6\u786e\u7387\u7684\u517c\u5e76\uff0c\u800c YOLACT \u7684\u6027\u80fd\u53ef\u80fd\u5728\u8fd9\u65b9\u9762\u5b58\u5728\u4e00\u4e9b\u6311\u6218\u3002<\/li>\n<\/ol>\n

            <\/p>\n

             <\/p>\n","protected":false},"excerpt":{"rendered":"

            YOLACT \u67b6\u6784\u4e0e\u7279\u70b9 YOLACT\uff08You Only Look At CoefficienTs\uff09\u662f\u4e00\u79cd\u7528\u4e8e […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categories":[15,1],"tags":[],"class_list":["post-554","post","type-post","status-publish","format-standard","hentry","category-ai","category-tech"],"_links":{"self":[{"href":"https:\/\/www.zhoubin.asia\/index.php\/wp-json\/wp\/v2\/posts\/554","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zhoubin.asia\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhoubin.asia\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhoubin.asia\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhoubin.asia\/index.php\/wp-json\/wp\/v2\/comments?post=554"}],"version-history":[{"count":3,"href":"https:\/\/www.zhoubin.asia\/index.php\/wp-json\/wp\/v2\/posts\/554\/revisions"}],"predecessor-version":[{"id":561,"href":"https:\/\/www.zhoubin.asia\/index.php\/wp-json\/wp\/v2\/posts\/554\/revisions\/561"}],"wp:attachment":[{"href":"https:\/\/www.zhoubin.asia\/index.php\/wp-json\/wp\/v2\/media?parent=554"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhoubin.asia\/index.php\/wp-json\/wp\/v2\/categories?post=554"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhoubin.asia\/index.php\/wp-json\/wp\/v2\/tags?post=554"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}