JP2016165128A - 映像符号化装置 - Google Patents
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Abstract
【解決手段】動画符号化装置のイントラ予測部は、現在ブロックの利用可能な参照画素を用いて、利用不可能な位置の参照画素を生成し、イントラ予測モード及び前記現在ブロックのサイズ情報に基づいて、現在ブロックに隣接している参照画素を適応的にフィルタリングして、イントラ予測モードによって現在ブロックの予測ブロックを生成する。したがって、原本映像に近い予測ブロックを生成することができ、映像圧縮率を高める。
【選択図】図1
Description
Claims (2)
- イントラ予測モードを定め、前記イントラ予測モードによって予測ブロックを生成するイントラ予測部と、
前記予測ブロックの残差ブロックを変換符号化及び量子化して、量子化ブロックを生成する変換符号化/量子化部と、
前記量子化ブロックを逆量子化及び逆変換して、復元された残差ブロックを生成する逆量子化/変換復号化部と、
前記量子化ブロックの量子化係数をエントロピー符号化するエントロピー符号化部と、を備え、
前記量子化ブロックのサイズが8×8であれば、前記量子化ブロックの量子化係数は、複数のサブセットとに分割され、前記複数のサブセット内の量子化係数は、前記イントラ予測モードによって定められるスキャンパターンを用いてスキャンされ、前記複数のサブセットは、前記イントラ予測モードによって定められるスキャンパターンによってスキャンされ、
前記複数のサブセット内の量子化係数をスキャンするスキャンパターンと、前記複数のサブセットをスキャンするスキャンパターンとは同一で、
前記イントラ予測モードが水平モードであれば、前記スキャンパターンは垂直スキャンで、
前記複数のサブセットは、逆方向にスキャンされ、
前記イントラ予測部は、
現在ブロックの利用可能な参照画素を用いて、利用不可能な位置の参照画素を生成する参照画素生成部と、
前記イントラ予測モード及び前記現在ブロックのサイズ情報に基づいて、前記現在ブロックに隣接している参照画素を適応的にフィルタリングする参照画素フィルタリング部と、
前記イントラ予測モードによって現在ブロックの予測ブロックを生成する予測ブロック生成部と、を備える映像符号化装置。 - 前記イントラ予測モードが垂直モードであれば、前記スキャンパターンは水平スキャンであることを特徴とする請求項1に記載の映像符号化装置。
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KR10-2010-0074462 | 2010-07-31 | ||
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KR10-2011-0062603 | 2011-06-28 | ||
KR1020110062603A KR101373814B1 (ko) | 2010-07-31 | 2011-06-28 | 예측 블록 생성 장치 |
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JP2016082413A Active JP6084731B2 (ja) | 2010-07-31 | 2016-04-15 | 映像符号化装置 |
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JP2016082417A Active JP6084734B2 (ja) | 2010-07-31 | 2016-04-15 | 映像復号化装置 |
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JP2016082414A Active JP6149138B2 (ja) | 2010-07-31 | 2016-04-15 | 映像符号化装置 |
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JP2016082413A Active JP6084731B2 (ja) | 2010-07-31 | 2016-04-15 | 映像符号化装置 |
JP2016082418A Active JP6084735B2 (ja) | 2010-07-31 | 2016-04-15 | 映像復号化装置 |
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US (11) | US9319715B2 (ja) |
EP (7) | EP3214838B1 (ja) |
JP (8) | JP5928957B2 (ja) |
KR (1) | KR101373814B1 (ja) |
CN (11) | CN104602006B (ja) |
CY (5) | CY1119258T1 (ja) |
DK (5) | DK2988501T3 (ja) |
ES (6) | ES2733115T3 (ja) |
HR (5) | HRP20171277T1 (ja) |
HU (5) | HUE044306T2 (ja) |
LT (5) | LT3214838T (ja) |
PL (6) | PL3197161T3 (ja) |
PT (5) | PT2988501T (ja) |
RS (5) | RS58769B1 (ja) |
SI (5) | SI3214838T1 (ja) |
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JP2016165126A (ja) * | 2010-07-31 | 2016-09-08 | エム アンド ケー ホールディングス インコーポレイテッド | 映像符号化装置 |
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