JP2016201826A - 映像復号装置、映像復号方法及びプログラム - Google Patents
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Abstract
Description
第1の実施形態では、所定面積(画像における所定領域)の画像ブロックに許容する動きベクトルの最大本数と上記の所定面積の画像ブロックに含まれる符号化済み画像ブロックの動きベクトルの本数とに基づいて、インターPUパーティションタイプとインター予測方向を制御する符号化制御手段、及び、所定面積の画像ブロックに許容する動きベクトルの最大本数に関する情報を映像復号装置にシグナリングするための、所定面積に関する情報と所定面積の画像ブロックに許容する動きベクトルの最大本数に関する情報をビットストリームに埋め込む手段を備える映像符号化装置を示す。
第2の実施形態の映像符号化装置は、外部設定される所定面積と所定面積の画像ブロックに許容する動きベクトルの最大本数に基づいて、インターPUパーティションタイプとインター予測方向を制御し、上記の所定面積の画像ブロックに含まれる符号化済み画像ブロックの動きベクトルの本数に基づいてインターPUパーティションタイプシンタクスのエントロピー符号化を制御する符号化制御手段、及び、所定面積の画像ブロックに許容する動きベクトルの最大本数と所定面積に許容する動きベクトルの本数とに関する情報を映像復号装置にシグナリングするための、所定面積に関する情報と所定面積の画像ブロックに許容する動きベクトルの最大本数に関する情報と所定面積あたりに許容する動きベクトルの本数に関する情報とをビットストリームに埋め込む手段を備える。
第3の実施形態の映像復号装置は、第2の実施形態の映像符号化装置が生成したビットストリームを復号する。
第4の実施形態の映像復号装置は、第1の実施形態の映像符号化装置が生成したビットストリームを復号する。
21 復号制御手段
101 変換/量子化器
102 エントロピー符号化器
103 逆変換/逆量子化器
104 バッファ
105 予測器
106 多重化器
107,108 符号化制御器
201 多重化解除器
202 エントロピー復号器
203 逆変換/逆量子化器
204 予測器
205 バッファ
206 復号制御器
207 エラー検出器
1001 プロセッサ
1002 プログラムメモリ
1003 記憶媒体
1004 記憶媒体
Claims (3)
- インター予測を用いて映像復号を行う映像復号装置であって、
予測モードをエントロピー復号し、前記予測モードがインター予測である場合に、所定面積の画像ブロックに許容する動きベクトルの最大本数と、前記所定面積の画像ブロックに含まれる復号済みCU(Coding Unit )の動きベクトルの本数との関係に基づいて、復号対象CUのインターPU(Prediction Unit )パーティションタイプのインター予測方向の候補を制限する復号制御手段を備えることを特徴とする映像復号装置。 - インター予測を用いて映像復号を行う映像復号方法であって、
予測モードをエントロピー復号し、前記予測モードがインター予測である場合に、所定面積の画像ブロックに許容する動きベクトルの最大本数と、前記所定面積の画像ブロックに含まれる復号済みCU(Coding Unit )の動きベクトルの本数との関係に基づいて、復号対象CUのインターPU(Prediction Unit )パーティションタイプのインター予測方向の候補を制限することを特徴とする映像復号方法。 - インター予測を用いて映像復号を行うコンピュータに、
予測モードをエントロピー復号し、前記予測モードがインター予測である場合に、所定面積の画像ブロックに許容する動きベクトルの最大本数と、前記所定面積の画像ブロックに含まれる復号済みCU(Coding Unit )の動きベクトルの本数との関係に基づいて、復号対象CUのインターPU(Prediction Unit )パーティションタイプのインター予測方向の候補を制限する処理を実行させるための映像復号プログラム。
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JP2015173404A (ja) * | 2014-03-12 | 2015-10-01 | 富士通株式会社 | 動画像符号化装置、動画像符号化方法及び動画像符号化用コンピュータプログラム |
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