{"id":681,"date":"2023-05-09T11:19:54","date_gmt":"2023-05-09T03:19:54","guid":{"rendered":"https:\/\/scutvk.cn\/?p=681"},"modified":"2023-05-09T11:19:58","modified_gmt":"2023-05-09T03:19:58","slug":"%e5%ad%90%e5%b8%a6%e7%bc%96%e7%a0%81%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/scutvk.cn\/?p=681","title":{"rendered":"\u5b50\u5e26\u7f16\u7801\u65b9\u6cd5"},"content":{"rendered":"\n<p>\u5b50\u5e26\u7f16\u7801\u65b9\u6cd5\u662f\u4e00\u79cd\u5728\u9891\u57df\u4e0a\u5bf9\u4fe1\u53f7\u8fdb\u884c\u5206\u6790\u548c\u5904\u7406\u7684\u6280\u672f\uff0c\u5b83\u5c06\u4fe1\u53f7\u5206\u89e3\u6210\u591a\u4e2a\u5b50\u5e26\uff0c\u6bcf\u4e2a\u5b50\u5e26\u5bf9\u5e94\u4e00\u4e2a\u4e0d\u540c\u7684\u9891\u7387\u8303\u56f4\u3002\u5b50\u5e26\u7f16\u7801\u5e38\u7528\u4e8e\u56fe\u50cf\u548c\u89c6\u9891\u538b\u7f29\uff0c\u56e0\u4e3a\u5728\u8fd9\u4e9b\u5e94\u7528\u4e2d\uff0c\u4e0d\u540c\u9891\u7387\u8303\u56f4\u7684\u4fe1\u606f\u5177\u6709\u4e0d\u540c\u7684\u91cd\u8981\u6027\u548c\u53ef\u611f\u77e5\u6027\u3002\u4ee5\u4e0b\u662f\u5b50\u5e26\u7f16\u7801\u65b9\u6cd5\u7684\u57fa\u672c\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol>\n<li>\u5206\u89e3\u4fe1\u53f7\uff1a\u9996\u5148\uff0c\u5c06\u539f\u59cb\u4fe1\u53f7\uff08\u4f8b\u5982\u56fe\u50cf\u6216\u89c6\u9891\u5e27\uff09\u5206\u89e3\u6210\u591a\u4e2a\u5b50\u5e26\uff0c\u6bcf\u4e2a\u5b50\u5e26\u5305\u542b\u4e00\u4e2a\u7279\u5b9a\u9891\u7387\u8303\u56f4\u7684\u4fe1\u606f\u3002\u8fd9\u901a\u5e38\u901a\u8fc7\u4f7f\u7528\u6ee4\u6ce2\u5668\u7ec4\uff08\u4f8b\u5982\u5c0f\u6ce2\u53d8\u6362\u6216DCT\u53d8\u6362\uff09\u6765\u5b8c\u6210\u3002\u5728\u5206\u89e3\u8fc7\u7a0b\u4e2d\uff0c\u4fe1\u53f7\u7684\u5197\u4f59\u4fe1\u606f\u53ef\u80fd\u4f1a\u88ab\u964d\u4f4e\uff0c\u4ece\u800c\u5b9e\u73b0\u6570\u636e\u538b\u7f29\u3002<\/li>\n\n\n\n<li>\u91cf\u5316\uff1a\u5728\u5b50\u5e26\u5206\u89e3\u540e\uff0c\u6bcf\u4e2a\u5b50\u5e26\u4e2d\u7684\u7cfb\u6570\u90fd\u9700\u8981\u8fdb\u884c\u91cf\u5316\u3002\u91cf\u5316\u662f\u4e00\u79cd\u5bf9\u4fe1\u53f7\u8fdb\u884c\u6709\u635f\u538b\u7f29\u7684\u65b9\u6cd5\uff0c\u5b83\u5c06\u8fde\u7eed\u503c\u4fe1\u53f7\u6620\u5c04\u5230\u6709\u9650\u6570\u91cf\u7684\u79bb\u6563\u503c\u3002\u91cf\u5316\u7684\u7cbe\u5ea6\u548c\u6bcf\u4e2a\u5b50\u5e26\u7684\u91cd\u8981\u6027\u6709\u5173\uff1a\u5bf9\u4e8e\u8f83\u91cd\u8981\u7684\u5b50\u5e26\uff0c\u53ef\u4ee5\u4f7f\u7528\u8f83\u9ad8\u7cbe\u5ea6\u7684\u91cf\u5316\uff1b\u800c\u5bf9\u4e8e\u8f83\u4e0d\u91cd\u8981\u7684\u5b50\u5e26\uff0c\u53ef\u4ee5\u4f7f\u7528\u8f83\u4f4e\u7cbe\u5ea6\u7684\u91cf\u5316\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u9ad8\u7684\u538b\u7f29\u6bd4\u3002<\/li>\n\n\n\n<li>\u71b5\u7f16\u7801\uff1a\u91cf\u5316\u540e\u7684\u5b50\u5e26\u7cfb\u6570\u9700\u8981\u8fdb\u884c\u71b5\u7f16\u7801\u3002\u71b5\u7f16\u7801\u662f\u4e00\u79cd\u65e0\u635f\u538b\u7f29\u6280\u672f\uff0c\u5b83\u6839\u636e\u7cfb\u6570\u7684\u6982\u7387\u5206\u5e03\u4e3a\u6bcf\u4e2a\u7cfb\u6570\u5206\u914d\u4e00\u4e2a\u77ed\u7801\u5b57\u3002\u5e38\u7528\u7684\u71b5\u7f16\u7801\u65b9\u6cd5\u6709\u54c8\u592b\u66fc\u7f16\u7801\uff08Huffman coding\uff09\u548c\u7b97\u672f\u7f16\u7801\uff08arithmetic coding\uff09\u3002\u71b5\u7f16\u7801\u7684\u76ee\u7684\u662f\u4f7f\u7f16\u7801\u540e\u7684\u6570\u636e\u5c3d\u53ef\u80fd\u63a5\u8fd1\u5176\u7406\u8bba\u6700\u5c0f\u957f\u5ea6\uff0c\u4ece\u800c\u5b9e\u73b0\u8fdb\u4e00\u6b65\u7684\u538b\u7f29\u3002<\/li>\n\n\n\n<li>\u89e3\u7801\u548c\u91cd\u5efa\uff1a\u4e3a\u4e86\u6062\u590d\u539f\u59cb\u4fe1\u53f7\uff0c\u9700\u8981\u9996\u5148\u5bf9\u538b\u7f29\u540e\u7684\u6570\u636e\u8fdb\u884c\u71b5\u89e3\u7801\uff0c\u4ee5\u83b7\u5f97\u91cf\u5316\u540e\u7684\u5b50\u5e26\u7cfb\u6570\u3002\u7136\u540e\uff0c\u5bf9\u8fd9\u4e9b\u7cfb\u6570\u8fdb\u884c\u53cd\u91cf\u5316\uff0c\u4ee5\u83b7\u5f97\u5b50\u5e26\u5206\u89e3\u540e\u7684\u4fe1\u53f7\u3002\u6700\u540e\uff0c\u4f7f\u7528\u9006\u6ee4\u6ce2\u5668\u7ec4\uff08\u4f8b\u5982\u9006\u5c0f\u6ce2\u53d8\u6362\u6216\u9006DCT\u53d8\u6362\uff09\u5c06\u5b50\u5e26\u4fe1\u53f7\u91cd\u5efa\u4e3a\u539f\u59cb\u4fe1\u53f7\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u5b50\u5e26\u7f16\u7801\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u5b83\u53ef\u4ee5\u6839\u636e\u4e0d\u540c\u9891\u7387\u8303\u56f4\u7684\u4fe1\u606f\u7684\u91cd\u8981\u6027\u548c\u53ef\u611f\u77e5\u6027\u8fdb\u884c\u81ea\u9002\u5e94\u5904\u7406\uff0c\u4ece\u800c\u5b9e\u73b0\u9ad8\u8d28\u91cf\u7684\u538b\u7f29\u3002\u7136\u800c\uff0c\u5b50\u5e26\u7f16\u7801\u65b9\u6cd5\u4e5f\u6709\u4e00\u4e9b\u7f3a\u70b9\uff0c\u4f8b\u5982\u8ba1\u7b97\u590d\u6742\u5ea6\u8f83\u9ad8\uff0c\u4ee5\u53ca\u5728\u6709\u635f\u538b\u7f29\u8fc7\u7a0b\u4e2d\u53ef\u80fd\u51fa\u73b0\u7684\u5931\u771f\u548c\u7f16\u7801\u4f2a\u5f71\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b50\u5e26\u7f16\u7801\u65b9\u6cd5\u662f\u4e00\u79cd\u5728\u9891\u57df\u4e0a\u5bf9\u4fe1\u53f7\u8fdb\u884c\u5206\u6790\u548c\u5904\u7406\u7684\u6280\u672f\uff0c\u5b83\u5c06\u4fe1\u53f7\u5206\u89e3\u6210\u591a\u4e2a\u5b50\u5e26\uff0c\u6bcf\u4e2a\u5b50\u5e26\u5bf9\u5e94\u4e00\u4e2a\u4e0d\u540c\u7684\u9891\u7387\u8303\u56f4\u3002\u5b50\u5e26\u7f16\u7801\u5e38\u7528\u4e8e\u56fe\u50cf\u548c\u89c6\u9891\u538b\u7f29\uff0c\u56e0\u4e3a\u5728\u8fd9\u4e9b\u5e94\u7528\u4e2d\uff0c\u4e0d\u540c\u9891\u7387\u8303\u56f4\u7684\u4fe1\u606f\u5177\u6709\u4e0d\u540c\u7684\u91cd\u8981\u6027\u548c\u53ef\u611f\u77e5\u6027\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[33,2],"tags":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/scutvk.cn\/index.php?rest_route=\/wp\/v2\/posts\/681"}],"collection":[{"href":"https:\/\/scutvk.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scutvk.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scutvk.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/scutvk.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=681"}],"version-history":[{"count":1,"href":"https:\/\/scutvk.cn\/index.php?rest_route=\/wp\/v2\/posts\/681\/revisions"}],"predecessor-version":[{"id":682,"href":"https:\/\/scutvk.cn\/index.php?rest_route=\/wp\/v2\/posts\/681\/revisions\/682"}],"wp:attachment":[{"href":"https:\/\/scutvk.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=681"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scutvk.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=681"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scutvk.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=681"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}