{"id":7642,"date":"2020-12-24T21:45:58","date_gmt":"2020-12-24T12:45:58","guid":{"rendered":"http:\/\/umezawa.dyndns.info\/wordpress\/?p=7642"},"modified":"2020-12-24T21:45:58","modified_gmt":"2020-12-24T12:45:58","slug":"utvideo-range-coder-%e5%86%8d%e3%81%b3","status":"publish","type":"post","link":"http:\/\/umezawa.dyndns.info\/wordpress\/?p=7642","title":{"rendered":"[UtVideo] Range Coder \u518d\u3073"},"content":{"rendered":"

\u4eca\u306f\u4e45\u3057\u3076\u308a\u306b\u6765\u305f\u300c\u30b3\u30a2\u6570\u304c\u5897\u3048\u3066\u3044\u304f\u6642\u671f\u300d\u3067\u3059\u3002\u3053\u3046\u3044\u3063\u305f\u5834\u5408\u3001\u3044\u304f\u3089\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u3092\u3057\u305f\u308a\u3057\u3066\u91cd\u3044\u51e6\u7406\u3092\u3057\u3066\u3082\u3001\u305d\u308c\u304c L2 \u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u53ce\u307e\u3063\u3066\u3044\u308b\u9650\u308a\u306f\u30b3\u30a2\u6570\u3092\u5897\u3084\u3057\u3066\u6bb4\u308a\u5012\u3059\u3053\u3068\u304c\u671f\u5f85\u3067\u304d\u307e\u3059\u3002<\/p>\n

UtVideo \u3067\u306f\u3069\u3046\u304b\u3068\u3044\u3046\u3068\u3001\u305d\u3046\u3044\u3063\u305f\u300c\u5727\u7e2e\u6bd4\u3092\u6539\u5584\u3067\u304d\u308b\u91cd\u3044\u51e6\u7406\u300d\u3092\u79c1\u304c\u601d\u3044\u3064\u304b\u306a\u3044\uff08\u5143\u3005\u305d\u3046\u3044\u3046\u5c02\u9580\u5bb6\u3067\u3082\u306a\u3044\uff09\u306e\u3067\u3059\u304c\u3001\u305d\u3046\u3044\u3048\u3070\u6614 Range Coder \u3092\u8a66\u3057\u3066\u3044\u305f<\/a>\u306e\u3092\u601d\u3044\u51fa\u3057\u307e\u3057\u305f\u3002<\/p>\n

<\/p>\n

\u3069\u308c\u304f\u3089\u3044\u52b9\u679c\u304c\u3042\u308b\u304b\u8abf\u3079\u305f\u3044\u3068\u3053\u308d\u3067\u3059\u304c\u3001Range Coder \u3067\u3069\u308c\u304f\u3089\u3044\u5727\u7e2e\u3067\u304d\u308b\u304b\u306f\u5b9f\u969b\u306b\u5727\u7e2e\u3057\u3066\u307f\u306a\u3044\u3068\u5206\u304b\u3089\u306a\u3044\uff08\u3064\u307e\u308a\u3001\u5727\u7e2e\u3059\u308b\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u3066 UtVideo \u306b\u7d44\u307f\u8fbc\u307e\u306a\u3044\u3068\u3044\u3051\u306a\u3044\uff09\u306e\u3067\u3001\u5727\u7e2e\u5bfe\u8c61\u306e\u60c5\u5831\u91cf\uff08\u30a8\u30f3\u30c8\u30ed\u30d4\u30fc\uff09\u3092\u8a08\u7b97\u3059\u308b\u3053\u3068\u3067\u4ee3\u66ff\u3059\u308b\u3053\u3068\u306b\u3057\u307e\u3059\u3002 Range Coder \u306f\u60c5\u5831\u91cf\u306b\u304b\u306a\u308a\u8fd1\u3044\u3068\u3053\u308d\u307e\u3067\u5727\u7e2e\u3067\u304d\u307e\u3059\u3002\u3068\u3044\u3046\u308f\u3051\u3067\u3001 predict median \u306e\u5834\u5408\u306b\u30cf\u30d5\u30de\u30f3\u7b26\u53f7\u3068\u6bd4\u8f03\u3057\u305f\u5834\u5408\u306e\u30b0\u30e9\u30d5\u304c\u4e0b\u306e\u901a\u308a\u3002<\/p>\n

\"\"<\/a><\/p>\n

\u5727\u7e2e\u3057\u3065\u3089\u3044\u30bd\u30fc\u30b9 (crowd_run) \u3060\u3068\u52b9\u679c\u304c\u307b\u3068\u3093\u3069\u306a\u3044\u306e\u306b\u5bfe\u3057\u3001\u5727\u7e2e\u3057\u3084\u3059\u3044\u30bd\u30fc\u30b9 (Big Buck Bunny) \u3060\u3068\u304b\u306a\u308a\u306e\u52b9\u679c\u304c\u51fa\u307e\u3059\u3002 YUV444 \u306a\u3093\u304b\u5727\u7e2e\u6bd4\u304c33\uff05\u3082\u5411\u4e0a\u3057\u3066\u304a\u308a\u3001\u8a08\u7b97\u5408\u3063\u3066\u3093\u306e\u304b\u5fc3\u914d\u306b\u306a\u308b\u30ec\u30d9\u30eb\u3067\u3059\u3002<\/p>\n

\u306a\u304a\u3001\u30b0\u30e9\u30d5\u3067\u306f\u7701\u7565\u3057\u307e\u3057\u305f\u304c\u300110bpc \u306e\u5834\u5408\u306f\u5727\u7e2e\u3057\u3084\u3059\u3044\u30bd\u30fc\u30b9\u3067\u3042\u3063\u3066\u3082\u307b\u3068\u3093\u3069\u52b9\u679c\u304c\u51fa\u307e\u305b\u3093\u3002\u305d\u3082\u305d\u3082 Range Coder \u306b\u3059\u308b\u3068\u4f55\u6545\u5c0f\u3055\u304f\u306a\u308b\u306e\u304b\u3068\u3044\u3046\u3068\u3001\u30cf\u30d5\u30de\u30f3\u7b26\u53f7\u306f\u7b26\u53f7\u8a9e\u9577\u304c\u6574\u6570\u306b\u5236\u9650\u3055\u308c\u308b\u305f\u3081\u3001\u4f8b\u3048\u3070 1.5bit \u3042\u308c\u3070\u3044\u3044\u30b7\u30f3\u30dc\u30eb\u306b\u5bfe\u3057\u3066\u3082 2bit \u5272\u308a\u5f53\u3066\u308b\u5fc5\u8981\u304c\u3042\u308b\u306e\u306b\u5bfe\u3057\u3001Range Coder \u3067\u306f\u975e\u6574\u6570\u9577\u306e\u7b26\u53f7\u8a9e\u3092\u4f7f\u3046\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u305d\u306e\u5dee\u306e 0.5bit \u5206\u304c\u6539\u5584\u3055\u308c\u308b\u304b\u3089\u3067\u3059\u3002 10bpc \u306e\u5834\u5408\u306f\u3053\u306e\u7121\u99c4\u306e\u5272\u5408\u304c\u5c0f\u3055\u304f\u306a\u308b\u305f\u3081\u3001\u7d50\u679c\u3068\u3057\u3066\u52b9\u679c\u304c\u51fa\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u30bd\u30fc\u30b9\u306b\u3088\u308b\u3082\u306e\u306e\u52b9\u679c\u306f\u3042\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u5206\u304b\u308a\u307e\u3057\u305f\u304c\u3001\u305d\u3046\u3059\u308b\u3068\u6b21\u306b\u6c17\u306b\u306a\u308b\u306e\u306f\u901f\u5ea6\u306e\u65b9\u3067\u3059\u300210\u5e74\u524d\u306b\u66f8\u3044\u305f\u30b3\u30fc\u30c9\u306f\u6b8b\u3063\u3066\u3044\u305f\u306e\u3067\u3001\u3056\u3063\u304f\u308a\u30cf\u30d5\u30de\u30f3\u7b26\u53f7\u3068\u901f\u5ea6\u6bd4\u8f03\u306f\u3057\u307e\u3057\u305f\u304c\u3001\u30a8\u30f3\u30b3\u30fc\u30c9\u3082\u30c7\u30b3\u30fc\u30c9\u30826\u500d\u4ee5\u4e0a\u9045\u3044\u3088\u3046\u3067\u3059\u3002UtVideo \u306b\u7d44\u307f\u8fbc\u3093\u3067\u3057\u307e\u3046\u3068\u5727\u7e2e\u306b\u95a2\u3059\u308b\u7d30\u304b\u3044\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u5f8c\u304b\u3089\u5909\u66f4\u3059\u308b\u306e\u306f\u96e3\u3057\u3044\u306e\u3067\u3001\u307e\u3060\u3044\u308d\u3044\u308d\u8003\u3048\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4eca\u306f\u4e45\u3057\u3076\u308a\u306b\u6765\u305f\u300c\u30b3\u30a2\u6570\u304c\u5897\u3048\u3066\u3044\u304f\u6642\u671f\u300d\u3067\u3059\u3002\u3053\u3046\u3044\u3063\u305f\u5834\u5408\u3001\u3044\u304f\u3089\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u3092\u3057\u305f\u308a\u3057\u3066\u91cd\u3044\u51e6\u7406\u3092\u3057\u3066\u3082\u3001\u305d\u308c\u304c L2 \u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u53ce\u307e\u3063\u3066\u3044\u308b\u9650\u308a\u306f\u30b3\u30a2\u6570\u3092\u5897\u3084\u3057\u3066\u6bb4\u308a\u5012\u3059\u3053\u3068\u304c\u671f\u5f85\u3067\u304d\u307e\u3059\u3002 UtVideo […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28,27],"tags":[],"class_list":["post-7642","post","type-post","status-publish","format-standard","hentry","category-ut-video-codec-suite","category-technology"],"_links":{"self":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/7642","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7642"}],"version-history":[{"count":2,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/7642\/revisions"}],"predecessor-version":[{"id":7645,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/7642\/revisions\/7645"}],"wp:attachment":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7642"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7642"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7642"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}