JP2016165129A - 映像復号化装置 - Google Patents
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Abstract
【解決手段】映像復号化装置は、量子化ブロックのサイズが8×8であれば、逆スキャニング部220は1次元の量子化変換係数に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適用して複数のサブセットを復元して、複数のサブセットに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適用して量子化ブロックを復元する。イントラ予測モードが水平モードであれば、スキャンパターンは垂直スキャンである。イントラ予測部250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。
【選択図】図3
Description
Claims (2)
- 映像符号化装置からイントラ予測情報及び1次元の係数情報を受信して、前記1次元の係数情報を用いて1次元の量子化変換係数を復元するエントロピー復号化部と、
前記1次元の量子化変換係数を逆スキャニングして2次元配列の量子化ブロックを復元する逆スキャニング部と、
前記量子化ブロックを逆量子化して変換ブロックを復元する逆量子化部と、
前記変換ブロックを逆変換して残差ブロックを生成する逆変換部と、
前記イントラ予測情報から得られた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、
前記残差ブロック及び前記予測ブロックを加えて元ブロックを生成する加算部と、を備え、
前記量子化ブロックのサイズが8×8であれば、前記逆スキャニング部は前記1次元の量子化変換係数に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適用して複数のサブセットを復元して、前記複数のサブセットに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適用して前記量子化ブロックを復元して、
前記1次元の量子化変換係数から前記複数のサブセットを復元するために適用されるスキャンパターンと、前記複数のサブセットから前記量子化ブロックを復元するために適用され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、
前記イントラ予測部は、
前記イントラ予測情報を用いて現在ブロックのイントラ予測モードを復元して予測モード復号化部と、
前記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、を備える映像復号化装置。 - 前記イントラ予測モードが、前記水平モードに隣接した事前に設定された個数のイントラ予測モードのひとつなら、前記スキャンパターンは垂直スキャンであることを特徴とする請求項1に記載の映像復号化装置。
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KR20100074462 | 2010-07-31 | ||
KR10-2010-0074462 | 2010-07-31 | ||
KR10-2011-0062603 | 2011-06-28 | ||
KR1020110062603A KR101373814B1 (ko) | 2010-07-31 | 2011-06-28 | 예측 블록 생성 장치 |
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JP2013523089A Active JP5928957B2 (ja) | 2010-07-31 | 2011-07-29 | 映像符号化装置 |
JP2016082417A Expired - Fee Related JP6084734B2 (ja) | 2010-07-31 | 2016-04-15 | 映像復号化装置 |
JP2016082413A Active JP6084731B2 (ja) | 2010-07-31 | 2016-04-15 | 映像符号化装置 |
JP2016082412A Active JP6149137B2 (ja) | 2010-07-31 | 2016-04-15 | 映像符号化装置 |
JP2016082415A Active JP6084732B2 (ja) | 2010-07-31 | 2016-04-15 | 映像復号化装置 |
JP2016082414A Active JP6149138B2 (ja) | 2010-07-31 | 2016-04-15 | 映像符号化装置 |
JP2016082416A Expired - Fee Related JP6084733B2 (ja) | 2010-07-31 | 2016-04-15 | 映像復号化装置 |
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JP2016082413A Active JP6084731B2 (ja) | 2010-07-31 | 2016-04-15 | 映像符号化装置 |
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US (11) | US9319715B2 (ja) |
EP (7) | EP2600614A4 (ja) |
JP (8) | JP5928957B2 (ja) |
KR (1) | KR101373814B1 (ja) |
CN (11) | CN104602006B (ja) |
CY (5) | CY1119258T1 (ja) |
DK (5) | DK3211898T3 (ja) |
ES (6) | ES2720652T3 (ja) |
HR (5) | HRP20171277T1 (ja) |
HU (5) | HUE044306T2 (ja) |
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PL (6) | PL3197161T3 (ja) |
PT (5) | PT3211898T (ja) |
RS (5) | RS58605B1 (ja) |
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