{"id":6717,"date":"2023-09-11T16:52:19","date_gmt":"2023-09-11T07:52:19","guid":{"rendered":"https:\/\/itochu-cable-systems.jp\/esb\/?post_type=useful&p=6717"},"modified":"2023-09-11T16:52:19","modified_gmt":"2023-09-11T07:52:19","slug":"%e3%82%ac%e3%82%a4%e3%83%89%e3%83%a9%e3%82%a4%e3%83%b3%e3%81%ae%e9%81%95%e3%81%84ofcom-japan-nab","status":"publish","type":"useful","link":"https:\/\/itochu-cable-systems.jp\/esb\/category\/useful\/cambridge-research-systems\/hfpa\/2023\/09\/6717\/","title":{"rendered":"\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u9055\u3044(Ofcom , Japan NAB)"},"content":{"rendered":"

\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306e\u9078\u629e\u306b\u3088\u3063\u3066\u6620\u50cf\u306e\u89e3\u6790\u7d50\u679c\u306f\u7570\u306a\u308a\u307e\u3059\u3002
\u3053\u308c\u306f\u5404\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u3088\u3063\u3066\u57fa\u6e96\u304c\u7570\u306a\u308b\u3053\u3068\u304c\u539f\u56e0\u3067\u3059\u3002<\/p>\r\n

\u25c6 Ofcom\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/p>\r\n

Ofcom\uff08\u82f1\u56fd\u60c5\u5831\u901a\u4fe1\u5e81\uff09\u304c1994\u5e7411\u6708\u306b\u30ac\u30a4\u30c0\u30f3\u30b9\u30ce\u30fc\u30c8\u3068\u3057\u3066\u767a\u8868\uff08\u305d\u306e\u5f8c\u4f55\u5ea6\u304b\u6539\u8a02\u304c\u884c\u308f\u308c\u305f\uff09\u3057\u305f\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3067\u300120\u5e74\u4ee5\u4e0a\u306b\u308f\u305f\u308a\u30a4\u30ae\u30ea\u30b9\u3067\u6b63\u5f0f\u306b\u63a1\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u4e16\u754c\u4e2d\u3067\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002
\u3053\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306fSDR\uff08\u6a19\u6e96\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u30ec\u30f3\u30b8\uff09\u306e\u307f\u3092\u5bfe\u8c61\u3068\u3057\u3066\u304a\u308a\u3001
\u6700\u5927\u767d\u8272\u306f200 cd\/\u33a1(nit)\u3001\u30ac\u30f3\u30de\u306f2.2\u3068\u5236\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002 <\/span><\/p>\r\n

\u30fb\u8f1d\u5ea6\u70b9\u6ec5\u306b\u3064\u3044\u3066
<\/span>\u6bce\u79d2<\/span>3<\/span>\u56de\u4ee5\u4e0a\u3001<\/span>20 cd\/m2(<\/span>\u307e\u305f\u306f\u305d\u308c<\/span>\u4ee5\u4e0a<\/span>)<\/span>\u306e\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u304b\u3099<\/span>\u70b9\u6ec5<\/span>\u3057<\/span>\u3001\u753b\u9762\u9818\u57df<\/span>\u306e<\/span>25%<\/span>\u4ee5\u4e0a<\/span>\u3092<\/span>\u5360<\/span>\u3081\u3066\u3044\u308b\u3082\u306e\u3068<\/span>\u5b9a\u7fa9<\/span>\u3055\u308c\u307e\u3059<\/span>\u3002<\/span><\/p>\r\n

\u30fb\u8d64\u8272\u70b9\u6ec5\u306b\u3064\u3044\u3066
<\/span>\u8f1d\u5ea6<\/span>\u306e<\/span>\u5909\u5316<\/span>\u306b<\/span>\u95a2\u4fc2<\/span>\u306a\u304f<\/span>\u3001\u98fd\u548c<\/span>\u3057\u305f<\/span>\u8d64\u8272<\/span>\u3092<\/span>\u542b<\/span>\u3080\u30d5\u30e9\u30c3\u30b7\u30e5\u3082<\/span>\u7981\u6b62<\/span>\u3055\u308c\u3066\u3044\u307e\u3059<\/span>\u3002<\/span>
\u98fd\u548c\u3057\u305f\u8d64\u8272\u3068\u306f\u3001\u4e0b\u306e\u56f3\u306e\u69d8\u306bCIE \u8272\u5ea6\u7a7a\u9593\u3067 Rec 709 80% \u8d64(\u8d64\u6210\u5206\u304c\u5168\u8272\u6210\u5206\u306e 80% \u4ee5\u4e0a\u3042\u308b\u8272\u3001\u00a0R\/(R+G+B)>0.8\u3067\u3042\u308bRGB\u306e\u7d44\u307f\u5408\u308f\u305b\u306e\u8272)\u3068 D65 \u306e\u767d\u8272\u70b9\u304b\u3089\u7d42\u70b9\u307e\u3067\u306e 2 \u3064\u306e\u7834\u7dda\u3067\u56f2\u307e\u308c\u305f\u9818\u57df\u306e\u8272\u3067\u3059\u3002<\/span><\/p>\r\n

\"\"<\/p>\r\n

\r\n
\r\n
\r\n

\u30fb\u7a7a\u9593\u30d1\u30bf\u30fc\u30f3\u306b\u3064\u3044\u3066
\u6f5c\u5728\u7684\u306b\u6709\u5bb3\u306a\u7a7a\u9593\u30d1\u30bf\u30fc\u30f3\u306f\u3001<\/span>20cd\/m2(<\/span>\u307e\u305f\u306f\u305d\u308c\u4ee5\u4e0a<\/span>)<\/span>\u306e\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u3092\u6301\u3061\u3001
<\/span>5<\/span>\u3064\u4ee5\u4e0a\u306e\u660e\u6697\u306e\u30b9\u30c8\u30e9\u30a4\u30d7\u306e\u30da\u30a2\u3092\u542b\u307f\u3001<\/span>40%<\/span>\u4ee5\u4e0a\u306e\u753b\u9762\u9818\u57df\u3092\u5360\u3081\u308b\u3068\u5b9a\u7fa9\u3055\u308c\u307e\u3059\u3002

\u30fb\u8b66\u544a\u5024\u306e\u9023\u7d9a\u306b\u3088\u308b\u5931\u683c\u306b\u3064\u3044\u3066
<\/span>\u7a7a\u9593\u30d1\u30bf\u30fc\u30f3\u306b\u306f\u9069\u5fdc\u3055\u308c\u305a\u3001<\/span>5\u79d2\u9593\u306e\u9023\u7d9a\u3057\u305f\u8f1d\u5ea6\u70b9\u6ec5\u307e\u305f\u306f\u8d64\u8272\u70b9\u6ec5(\u5171\u306b\u8b66\u544a\u5024)\u306f\u8b66\u544a\u5024\u306e\u9023\u7d9a\u306b\u3088\u308b\u5931\u683c\u3068\u306a\u308a\u307e\u3059\u3002<\/span><\/span><\/p>\r\n<\/div>\r\n


\u25c6Japan NAB\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/p>\r\n

\u4e00\u822c\u793e\u56e3\u6cd5\u4eba\u65e5\u672c\u6c11\u9593\u653e\u9001\u9023\u76df\u304c2006\u5e74\u306b\u5b9a\u3081\u305f\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3067\u3059\u3002
\u3053\u3061\u3089\u3082SDR\u306e\u307f\u304c\u5bfe\u8c61\u3067\u3059\u3002
Ofcom\u3068\u306e\u5927\u304d\u306a\u9055\u3044\u306f\u30b9\u30af\u30ea\u30fc\u30f3\u8f1d\u5ea6(cd\/\u33a1)\u3067\u306f\u306a\u304f\u3001\u30c6\u3099\u30a3\u30b9\u30d5\u309a\u30ec\u30a4\u3066\u3099<\/span>\u8868\u73fe<\/span>\u3055\u308c\u308b<\/span>\u8f1d\u5ea6\u4fe1\u53f7<\/span>(0 <\/span>~<\/span>100 IRE <\/span>\u5358\u4f4d<\/span>)<\/span>\u306b<\/span>\u57fa<\/span>\u3064\u3099\u3044\u3066\u3044\u308b\u70b9\u3067\u3059\u3002<\/span><\/p>\r\n

IRE\u3068\u306f\u6700\u9ad8\u8f1d\u5ea6\u306e\u767d\u8272\u3092100 IRE\u3001\u6700\u4f4e\u8f1d\u5ea6\u306e\u9ed2\u8272\u30920 IRE\u3068\u3057\u3066\u5b9a\u7fa9\u3057\u305f\u8f1d\u5ea6\u4fe1\u53f7\u306e\u5927\u304d\u3055\u306e\u5358\u4f4d\u3067\u3059\u3002
(\u9ed2\u30927.5 IRE\u3068\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u5f53\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306f0\u301c100IRE\u3068\u3057\u3066\u3044\u307e\u3059\u3002)<\/p>\r\n

\r\n
\r\n
\r\n

\u30fb\u8f1d\u5ea6\u70b9\u6ec5\u306b\u3064\u3044\u3066
<\/span>10 IRE<\/span>\u30e6\u30cb\u30c3\u30c8<\/span>(<\/span>\u307e\u305f\u306f\u305d\u308c<\/span>\u4ee5\u4e0a<\/span>)<\/span>\u306e\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u304b\u3099<\/span>1<\/span>\u79d2<\/span>\u3042\u305f\u308a<\/span>3<\/span>\u56de\u4ee5\u4e0a<\/span>\u306e<\/span>\u70b9\u6ec5<\/span>\u3057<\/span>\u3001\u753b\u9762\u9818\u57df<\/span>\u306e<\/span>25<\/span>%\u4ee5\u4e0a<\/span>\u3092<\/span>\u5360<\/span>\u3081\u308b\u3053\u3068\u3068\u3057\u3066<\/span>\u5b9a\u7fa9<\/span>\u3055\u308c\u3066\u3044\u307e\u3059<\/span>\u3002
<\/span>\u70b9\u6ec5\u306f\u30013\u79d2\u9593\u9694\u30672\u79d2\u3092\u8d85\u3048\u306a\u3044\u9650\u308a\u3001\u6700\u5927 20 IRE \u30e6\u30cb\u30c3\u30c8\u304a\u3088\u3073\u6700\u5927 5 fps \u307e\u3067\u8a31\u5bb9\u3055\u308c\u307e\u3059\u3002
\u30b7\u30fc\u30f3\u30c1\u30a7\u30f3\u30b8\u304b\u30891\u79d2\u4ee5\u5185\u306e\u5834\u5408\u3001\u30d5\u30e9\u30c3\u30b7\u30e5\u306f 1.5 fps \u306b\u5236\u9650\u3055\u308c\u307e\u3059\u3002 (\u30d3\u30c7\u30aa\u753b\u50cf\u9818\u57df\u306e 80% \u4ee5\u4e0a\u3092\u30ab\u30d0\u30fc\u3059\u308b 20 IRE \u30e6\u30cb\u30c3\u30c8\u306e\u30d5\u30e9\u30c3\u30b7\u30e5 \u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u3068\u3057\u3066\u5b9a\u7fa9\u3055\u308c\u307e\u3059)
90 IRE \u3092\u5b8c\u5168\u306b\u8d85\u3048\u308b\u304b\u300130 IRE \u3092\u5b8c\u5168\u306b\u4e0b\u56de\u308b\u30d5\u30e9\u30c3\u30b7\u30e5\u306f\u514d\u9664\u3055\u308c\u307e\u3059\u3002<\/p>\r\n

\u30fb\u8d64\u8272\u70b9\u6ec5\u306b\u3064\u3044\u3066
\u8d64<\/span>\u306e<\/span>\u70b9\u6ec5\u5236\u9650<\/span>\u306f<\/span>YUV<\/span>\u30b9\u30d8\u309a\u30fc\u30b9\u3066\u3099<\/span>\u5b9a\u7fa9<\/span>\u3055\u308c<\/span>\u3001<\/span>50<\/span>%<\/span>\u306e<\/span>\u98fd\u548c\u3001<\/span>25<\/span>%<\/span>\u306e<\/span>\u753b\u9762\u9818\u57df\u3001<\/span>\u304a\u3088\u3072\u3099<\/span>3fps<\/span>\u306b<\/span>\u5236\u9650<\/span>\u3055\u308c\u3066\u3044\u307e\u3059<\/span>\u3002
<\/span><\/p>\r\n

\u30fb\u7a7a\u9593\u30d1\u30bf\u30fc\u30f3\u306b\u3064\u3044\u3066
10IRE(<\/span>\u307e\u305f\u306f\u305d\u308c\u4ee5\u4e0a<\/span>)<\/span>\u306e\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u3092\u6301\u3061\u3001<\/span>5<\/span>\u3064\u4ee5\u4e0a\u306e\u660e\u6697\u306e\u30b9\u30c8\u30e9\u30a4\u30d7\u306e\u30da\u30a2\u3092\u542b\u307f\u3001<\/span>40%<\/span>\u4ee5\u4e0a\u306e\u753b\u9762\u9818\u57df\u3092\u5360\u3081\u308b\u3082\u306e\u3068\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059\u3002
<\/span><\/p>\r\n

\u30fb\u8b66\u544a\u5024\u306e\u9023\u7d9a\u306b\u3088\u308b\u5931\u683c\u306b\u3064\u3044\u3066
<\/span>\u7a7a\u9593\u30d1\u30bf\u30fc\u30f3\u306b\u306f\u9069\u5fdc\u3055\u308c\u305a\u3001<\/span>5\u79d2\u9593\u306e\u9023\u7d9a\u3057\u305f\u8f1d\u5ea6\u70b9\u6ec5\u307e\u305f\u306f\u8d64\u8272\u70b9\u6ec5(\u5171\u306b\u8b66\u544a\u5024)\u306f\u8b66\u544a\u5024\u306e\u9023\u7d9a\u306b\u3088\u308b\u5931\u683c\u3068\u306a\u308a\u307e\u3059\u3002<\/span><\/span><\/p>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n


\u4ee5\u4e0a\u3001Ofcom\u3068JapanNAB\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u304a\u3051\u308b\u5404\u9805\u76ee\u306e\u5b9a\u7fa9\u3092\u5217\u6319\u3057\u307e\u3057\u305f\u3002
\u5192\u982d\u3067\u3082\u8ff0\u3079\u305f\u901a\u308a\u3001\u57fa\u6e96\u304c\u7570\u306a\u308b\u305f\u3081\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u3088\u3063\u3066\u7d50\u679c\u304c\u7570\u306a\u308b\u3068\u3044\u3046\u4e8b\u304c\u304a\u5206\u304b\u308a\u306b\u306a\u308b\u304b\u3068\u5b58\u3058\u307e\u3059\u3002<\/p>\r\n<\/div>\r\n<\/div>","protected":false},"parent":0,"menu_order":0,"template":"","category_useful":[74,71],"class_list":["post-6717","useful","type-useful","status-publish","hentry","category_useful-hfpa","category_useful-cambridge-research-systems"],"acf":[],"ratings_data":{"average":"1","users":"4","nonce":"a5e9f8fb91"},"_links":{"self":[{"href":"https:\/\/itochu-cable-systems.jp\/esb\/wp-json\/wp\/v2\/useful\/6717","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itochu-cable-systems.jp\/esb\/wp-json\/wp\/v2\/useful"}],"about":[{"href":"https:\/\/itochu-cable-systems.jp\/esb\/wp-json\/wp\/v2\/types\/useful"}],"wp:attachment":[{"href":"https:\/\/itochu-cable-systems.jp\/esb\/wp-json\/wp\/v2\/media?parent=6717"}],"wp:term":[{"taxonomy":"category_useful","embeddable":true,"href":"https:\/\/itochu-cable-systems.jp\/esb\/wp-json\/wp\/v2\/category_useful?post=6717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}