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上記課題を解決するために、本発明のある態様の動画像符号化装置は、各ピクチャを分割したブロック単位で動きベクトルを用いて動画像を符号化する動画像符号化装置であって、符号化対象ブロックと同一ピクチャ内の前記符号化対象ブロックと近接する符号化済みのブロックのいずれかの動きベクトルから、第１及び第２の予測動きベクトル候補を導出し、符号化対象ブロックと異なる符号化済みのピクチャ内のブロックのいずれかの動きベクトルから、第３の予測動きベクトル候補を導出する予測動きベクトル候補生成部（１２１）と、所定の条件を満たす前記第１、第２及び第３の予測動きベクトル候補を予測動きベクトル候補リストに登録する予測動きベクトル候補登録部（１２２）と、前記予測動きベクトル候補登録部により前記予測動きベクトル候補リストに登録された前記第１の予測動きベクトル候補の値と前記第２の予測動きベクトル候補の値とが同じとき、前記予測動きベクトル候補リストから第２の予測動きベクトル候補を削除する予測動きベクトル候補冗長判定部（１２３）と、前記予測動きベクトル候補リストに登録された予測動きベクトル候補の数が所定数（２以上の自然数）よりも小さい場合に、予測動きベクトル候補の数が所定数に達するまで繰り返して同じ値の予測動きベクトル候補を前記予測動きベクトル候補リストに登録する予測動きベクトル候補制限部（１２４）と、前記予測動きベクトル候補リストから、前記符号化対象ブロックの予測動きベクトルを選択する予測動きベクトル選択部（１２６）と、前記予測動きベクトル候補リストにおける選択すべき予測動きベクトルのインデックスを示す情報を符号化する符号化部（１０９）とを備える。 In order to solve the above-described problem, a moving image encoding device according to an aspect of the present invention is a moving image encoding device that encodes a moving image using a motion vector in units of blocks obtained by dividing each picture. A first and second predicted motion vector candidates are derived from any motion vector of an encoded block close to the encoding target block in the same picture as the encoding target block, and a code different from the encoding target block either the motion vectors or these blocks in reduction already picture, the third prediction motion prediction motion vector candidate generation unit for deriving a vector candidates (121), the predetermined condition is satisfied the first, second and third predicted motion vector candidate is registered in the predicted motion vector candidate list predicted motion vector candidate registration unit (122), prior to the said predicted motion vector candidate registration unit When the value of the first motion vector predictor candidate registered in the motion vector predictor candidate list is the same as the value of the second motion vector predictor candidate, the second motion vector predictor candidate is selected from the motion vector predictor candidate list. When the number of predicted motion vector candidates to be deleted (123) to be deleted and the number of predicted motion vector candidates registered in the predicted motion vector candidate list are smaller than a predetermined number (two or more natural numbers), predicted motion vector candidate A motion vector predictor candidate restriction unit (124) for registering motion vector predictor candidates having the same value in the motion vector predictor candidate list repeatedly until the number reaches a predetermined number; It predicted motion vector to select a prediction motion vector selection portion (126), the predicted motion vector candidate list And a coding unit (109) for encoding information indicating the index of the predicted motion vector to be the definitive selection.
本発明のさらに別の態様は、動画像符号化方法である。この方法は、各ピクチャを分割したブロック単位で動きベクトルを用いて動画像を符号化する動画像符号化方法であって、符号化対象ブロックと同一ピクチャ内の前記符号化対象ブロックと近接する符号化済みのブロックのいずれかの動きベクトルから、第１及び第２の予測動きベクトル候補を導出し、符号化対象ブロックと異なる符号化済みのピクチャ内のブロックのいずれかの動きベクトルから、第３の予測動きベクトル候補を導出する予測動きベクトル候補生成ステップと、所定の条件を満たす前記第１、第２及び第３の予測動きベクトル候補を予測動きベクトル候補リストに登録する予測動きベクトル候補登録ステップと、前記予測動きベクトル候補登録ステップにより前記予測動きベクトル候補リストに登録された前記第１の予測動きベクトル候補の値と前記第２の予測動きベクトル候補の値とが同じとき、前記予測動きベクトル候補リストから第２の予測動きベクトル候補を削除する予測動きベクトル候補冗長判定ステップと、前記予測動きベクトル候補リストに登録された予測動きベクトル候補の数が所定数（２以上の自然数）よりも小さい場合に、予測動きベクトル候補の数が所定数に達するまで繰り返して同じ値の予測動きベクトル候補を前記予測動きベクトル候補リストに登録する予測動きベクトル候補制限ステップと、前記予測動きベクトル候補リストから、前記符号化対象ブロックの予測動きベクトルを選択する予測動きベクトル選択ステップと、前記予測動きベクトル候補リストにおける選択すべき予測動きベクトルのインデックスを示す情報を符号化する符号化ステップとを備える。 Yet another aspect of the present invention is a video encoding method. This method is a moving image coding method for coding a moving image using a motion vector in units of blocks obtained by dividing each picture, and is a code close to the coding target block in the same picture as the coding target block. of already from either the motion vector of the block, to derive the first and second predicted motion vector candidates, one of the motion vector whether these blocks in the encoding target block is different coded picture, third prediction motion prediction motion vector candidate generation step of deriving a vector candidates, the predetermined condition is satisfied first, the predicted motion vector candidate to register the second and third candidate predicted motion vector to the prediction motion vector candidate list a registration step, the predicted motion vector candidate registration step by the predicted motion vector candidate list on the registered first prediction When the value of the predicted motion vector candidate value and the second vector candidate can have the same, the prediction motion vector candidate redundancy judgment step of deleting the second predicted motion vector candidate from the predicted motion vector candidate list, the prediction motion When the number of motion vector predictor candidates registered in the vector candidate list is smaller than a predetermined number (a natural number of 2 or more), a motion vector predictor candidate having the same value is repeated until the number of motion vector predictor candidates reaches a predetermined number. A prediction motion vector candidate restriction step registered in the prediction motion vector candidate list, a prediction motion vector selection step of selecting a prediction motion vector of the coding target block from the prediction motion vector candidate list, and the prediction motion vector candidate list encoding information indicating the index of the predicted motion vector to be selected in That includes an encoding step.
本発明のさらに別の態様は、送信装置である。この装置は、各ピクチャを分割したブロック単位で動きベクトルを用いて動画像を符号化する動画像符号化方法により符号化された符号化ビット列をパケット化して符号化データを得るパケット処理部と、パケット化された前記符号化データを送信する送信部とを備える。前記動画像符号化方法は、符号化対象ブロックと同一ピクチャ内の前記符号化対象ブロックと近接する符号化済みのブロックのいずれかの動きベクトルから、第１及び第２の予測動きベクトル候補を導出し、符号化対象ブロックと異なる符号化済みのピクチャ内のブロックのいずれかの動きベクトルから、第３の予測動きベクトル候補を導出する予測動きベクトル候補生成ステップと、所定の条件を満たす前記第１、第２及び第３の予測動きベクトル候補を予測動きベクトル候補リストに登録する予測動きベクトル候補登録ステップと、前記予測動きベクトル候補登録ステップにより前記予測動きベクトル候補リストに登録された前記第１の予測動きベクトル候補の値と前記第２の予測動きベクトル候補の値とが同じとき、前記予測動きベクトル候補リストから第２の予測動きベクトル候補を削除する予測動きベクトル候補冗長判定ステップと、前記予測動きベクトル候補リストに登録された予測動きベクトル候補の数が所定数（２以上の自然数）よりも小さい場合に、予測動きベクトル候補の数が所定数に達するまで繰り返して同じ値の予測動きベクトル候補を前記予測動きベクトル候補リストに登録する予測動きベクトル候補制限ステップと、前記予測動きベクトル候補リストから、前記符号化対象ブロックの予測動きベクトルを選択する予測動きベクトル選択ステップと、前記予測動きベクトル候補リストにおける選択すべき予測動きベクトルのインデックスを示す情報を符号化する符号化ステップとを有する。 Yet another embodiment of the present invention is a transmission device. The apparatus includes a packet processing unit that packetizes an encoded bit sequence encoded by a moving image encoding method that encodes a moving image using a motion vector in units of blocks obtained by dividing each picture, and obtains encoded data; A transmission unit that transmits the packetized encoded data. The moving image encoding method derives first and second predicted motion vector candidates from motion vectors of encoded blocks adjacent to the encoding target block in the same picture as the encoding target block. and, one of the motion vector whether these blocks in the encoding target block is different coded picture, a predicted motion vector candidate generation step of deriving a third candidate predicted motion vector, a predetermined condition is satisfied the A predicted motion vector candidate registration step for registering the first, second and third predicted motion vector candidates in the predicted motion vector candidate list, and the first motion vector candidate registered in the predicted motion vector candidate list by the predicted motion vector candidate registration step. When the value of one predicted motion vector candidate and the value of the second predicted motion vector candidate are the same, the predicted motion vector A predicted motion vector candidate redundancy judgment step of deleting the second predicted motion vector candidate from Le candidate list, the predicted motion vector candidate number a predetermined number of list predicted motion vector candidates registered in the (natural number of 2 or more) than If the number of motion vector predictor candidates is smaller, the motion vector predictor candidate restriction step of registering motion vector predictor candidates having the same value in the motion vector predictor candidate list repeatedly until the number of motion vector predictor candidates reaches a predetermined number; And a prediction motion vector selection step of selecting a prediction motion vector of the block to be encoded, and an encoding step of encoding information indicating an index of the prediction motion vector to be selected in the prediction motion vector candidate list.
本発明のさらに別の態様は、送信方法である。この方法は、各ピクチャを分割したブロック単位で動きベクトルを用いて動画像を符号化する動画像符号化方法により符号化された符号化ビット列をパケット化して符号化データを得るパケット処理ステップと、パケット化された前記符号化データを送信する送信ステップとを備える。前記動画像符号化方法は、符号化対象ブロックと同一ピクチャ内の前記符号化対象ブロックと近接する符号化済みのブロックのいずれかの動きベクトルから、第１及び第２の予測動きベクトル候補を導出し、符号化対象ブロックと異なる符号化済みのピクチャ内のブロックのいずれかの動きベクトルから、第３の予測動きベクトル候補を導出する予測動きベクトル候補生成ステップと、所定の条件を満たす前記第１、第２及び第３の予測動きベクトル候補を予測動きベクトル候補リストに登録する予測動きベクトル候補登録ステップと、前記予測動きベクトル候補登録ステップにより前記予測動きベクトル候補リストに登録された前記第１の予測動きベクトル候補の値と前記第２の予測動きベクトル候補の値とが同じとき、前記予測動きベクトル候補リストから第２の予測動きベクトル候補を削除する予測動きベクトル候補冗長判定ステップと、前記予測動きベクトル候補リストに登録された予測動きベクトル候補の数が所定数（２以上の自然数）よりも小さい場合に、予測動きベクトル候補の数が所定数に達するまで繰り返して同じ値の予測動きベクトル候補を前記予測動きベクトル候補リストに登録する予測動きベクトル候補制限ステップと、前記予測動きベクトル候補リストから、前記符号化対象ブロックの予測動きベクトルを選択する予測動きベクトル選択ステップと、前記予測動きベクトル候補リストにおける選択すべき予測動きベクトルのインデックスを示す情報を符号化する符号化ステップとを有する。 Yet another embodiment of the present invention is a transmission method. In this method, a packet processing step of packetizing an encoded bit string encoded by a moving image encoding method that encodes a moving image using a motion vector in units of blocks obtained by dividing each picture to obtain encoded data; Transmitting the packetized encoded data. The moving image encoding method derives first and second predicted motion vector candidates from motion vectors of encoded blocks adjacent to the encoding target block in the same picture as the encoding target block. and, one of the motion vector whether these blocks in the encoding target block is different coded picture, a predicted motion vector candidate generation step of deriving a third candidate predicted motion vector, a predetermined condition is satisfied the A predicted motion vector candidate registration step for registering the first, second and third predicted motion vector candidates in the predicted motion vector candidate list, and the first motion vector candidate registered in the predicted motion vector candidate list by the predicted motion vector candidate registration step. When the value of one predicted motion vector candidate and the value of the second predicted motion vector candidate are the same, the predicted motion vector A predicted motion vector candidate redundancy judgment step of deleting the second predicted motion vector candidate from Le candidate list, the predicted motion vector candidate number a predetermined number of list predicted motion vector candidates registered in the (natural number of 2 or more) than If the number of motion vector predictor candidates is smaller, the motion vector predictor candidate restriction step of registering motion vector predictor candidates having the same value in the motion vector predictor candidate list repeatedly until the number of motion vector predictor candidates reaches a predetermined number; And a prediction motion vector selection step of selecting a prediction motion vector of the block to be encoded, and an encoding step of encoding information indicating an index of the prediction motion vector to be selected in the prediction motion vector candidate list.
Claims (6)
符号化対象ブロックと同一ピクチャ内の前記符号化対象ブロックと近接する符号化済みのブロックのいずれかの動きベクトルから、第１及び第２の予測動きベクトル候補を導出し、符号化対象ブロックと異なる符号化済みのピクチャ内のブロックのいずれかの動きベクトルから、第３の予測動きベクトル候補を導出する予測動きベクトル候補生成部と、
所定の条件を満たす前記第１、第２及び第３の予測動きベクトル候補を予測動きベクトル候補リストに登録する予測動きベクトル候補登録部と、
前記予測動きベクトル候補登録部により前記予測動きベクトル候補リストに登録された前記第１の予測動きベクトル候補の値と前記第２の予測動きベクトル候補の値とが同じとき、前記予測動きベクトル候補リストから第２の予測動きベクトル候補を削除する予測動きベクトル候補冗長判定部と、
前記予測動きベクトル候補リストに登録された予測動きベクトル候補の数が所定数（２以上の自然数）よりも小さい場合に、予測動きベクトル候補の数が所定数に達するまで繰り返して同じ値の予測動きベクトル候補を前記予測動きベクトル候補リストに登録する予測動きベクトル候補制限部と、
前記予測動きベクトル候補リストから、前記符号化対象ブロックの予測動きベクトルを選択する予測動きベクトル選択部と、
前記予測動きベクトル候補リストにおける選択すべき予測動きベクトルのインデックスを示す情報を符号化する符号化部とを備えることを特徴とする動画像符号化装置。 A video encoding device that encodes a video using a motion vector in units of blocks obtained by dividing each picture,
First and second motion vector predictor candidates are derived from one of the motion vectors of an encoded block close to the encoding target block in the same picture as the encoding target block, and are different from the encoding target block. either the motion vectors or these blocks in coded picture, a predicted motion vector candidate generation unit for deriving a third candidate predicted motion vector,
A predicted motion vector candidate registration unit that registers the first, second, and third predicted motion vector candidates satisfying a predetermined condition in a predicted motion vector candidate list;
When the value of the first motion vector predictor candidate registered in the motion vector predictor candidate list by the motion vector candidate registration unit is the same as the value of the second motion vector predictor candidate, the motion vector predictor candidate list A motion vector predictor redundancy determining unit that deletes the second motion vector predictor candidate from
When the number of motion vector predictor candidates registered in the motion vector predictor candidate list is smaller than a predetermined number (a natural number of 2 or more), repeated motions with the same value are repeated until the number of motion vector predictor candidates reaches a predetermined number. A motion vector predictor candidate restriction unit that registers vector candidates in the motion vector predictor candidate list;
A prediction motion vector selection unit that selects a prediction motion vector of the encoding target block from the prediction motion vector candidate list;
A moving picture encoding apparatus comprising: an encoding unit that encodes information indicating an index of a predicted motion vector to be selected in the predicted motion vector candidate list.
符号化対象ブロックと同一ピクチャ内の前記符号化対象ブロックと近接する符号化済みのブロックのいずれかの動きベクトルから、第１及び第２の予測動きベクトル候補を導出し、符号化対象ブロックと異なる符号化済みのピクチャ内のブロックのいずれかの動きベクトルから、第３の予測動きベクトル候補を導出する予測動きベクトル候補生成ステップと、
所定の条件を満たす前記第１、第２及び第３の予測動きベクトル候補を予測動きベクトル候補リストに登録する予測動きベクトル候補登録ステップと、
前記予測動きベクトル候補登録ステップにより前記予測動きベクトル候補リストに登録された前記第１の予測動きベクトル候補の値と前記第２の予測動きベクトル候補の値とが同じとき、前記予測動きベクトル候補リストから第２の予測動きベクトル候補を削除する予測動きベクトル候補冗長判定ステップと、
前記予測動きベクトル候補リストに登録された予測動きベクトル候補の数が所定数（２以上の自然数）よりも小さい場合に、予測動きベクトル候補の数が所定数に達するまで繰り返して同じ値の予測動きベクトル候補を前記予測動きベクトル候補リストに登録する予測動きベクトル候補制限ステップと、
前記予測動きベクトル候補リストから、前記符号化対象ブロックの予測動きベクトルを選択する予測動きベクトル選択ステップと、
前記予測動きベクトル候補リストにおける選択すべき予測動きベクトルのインデックスを示す情報を符号化する符号化ステップとを備えることを特徴とする動画像符号化方法。 A moving image encoding method for encoding a moving image using a motion vector in units of blocks obtained by dividing each picture,
First and second motion vector predictor candidates are derived from one of the motion vectors of an encoded block close to the encoding target block in the same picture as the encoding target block, and are different from the encoding target block. either the motion vectors or these blocks in coded picture, a predicted motion vector candidate generation step of deriving a third candidate predicted motion vector,
A predicted motion vector candidate registration step of registering the first, second and third predicted motion vector candidates satisfying a predetermined condition in a predicted motion vector candidate list;
When the value of the first motion vector predictor candidate registered in the motion vector predictor candidate list in the motion vector predictor candidate registration step is the same as the value of the second motion vector predictor candidate, the motion vector predictor candidate list A motion vector predictor redundancy determining step for deleting the second motion vector predictor candidate from
When the number of motion vector predictor candidates registered in the motion vector predictor candidate list is smaller than a predetermined number (a natural number of 2 or more), repeated motions with the same value are repeated until the number of motion vector predictor candidates reaches a predetermined number. A predicted motion vector candidate restriction step of registering vector candidates in the predicted motion vector candidate list;
A prediction motion vector selection step of selecting a prediction motion vector of the encoding target block from the prediction motion vector candidate list;
And a coding step for coding information indicating an index of a predicted motion vector to be selected in the predicted motion vector candidate list.
符号化対象ブロックと同一ピクチャ内の前記符号化対象ブロックと近接する符号化済みのブロックのいずれかの動きベクトルから、第１及び第２の予測動きベクトル候補を導出し、符号化対象ブロックと異なる符号化済みのピクチャ内のブロックのいずれかの動きベクトルから、第３の予測動きベクトル候補を導出する予測動きベクトル候補生成ステップと、
所定の条件を満たす前記第１、第２及び第３の予測動きベクトル候補を予測動きベクトル候補リストに登録する予測動きベクトル候補登録ステップと、
前記予測動きベクトル候補登録ステップにより前記予測動きベクトル候補リストに登録された前記第１の予測動きベクトル候補の値と前記第２の予測動きベクトル候補の値とが同じとき、前記予測動きベクトル候補リストから第２の予測動きベクトル候補を削除する予測動きベクトル候補冗長判定ステップと、
前記予測動きベクトル候補リストに登録された予測動きベクトル候補の数が所定数（２以上の自然数）よりも小さい場合に、予測動きベクトル候補の数が所定数に達するまで繰り返して同じ値の予測動きベクトル候補を前記予測動きベクトル候補リストに登録する予測動きベクトル候補制限ステップと、
前記予測動きベクトル候補リストから、前記符号化対象ブロックの予測動きベクトルを選択する予測動きベクトル選択ステップと、
前記予測動きベクトル候補リストにおける選択すべき予測動きベクトルのインデックスを示す情報を符号化する符号化ステップとをコンピュータに実行させることを特徴とする動画像符号化プログラム。 A moving image encoding program for encoding a moving image using a motion vector in units of blocks obtained by dividing each picture,
First and second motion vector predictor candidates are derived from one of the motion vectors of an encoded block close to the encoding target block in the same picture as the encoding target block, and are different from the encoding target block. either the motion vectors or these blocks in coded picture, a predicted motion vector candidate generation step of deriving a third candidate predicted motion vector,
A predicted motion vector candidate registration step of registering the first, second and third predicted motion vector candidates satisfying a predetermined condition in a predicted motion vector candidate list;
When the value of the first motion vector predictor candidate registered in the motion vector predictor candidate list in the motion vector predictor candidate registration step is the same as the value of the second motion vector predictor candidate, the motion vector predictor candidate list A motion vector predictor redundancy determining step for deleting the second motion vector predictor candidate from
When the number of motion vector predictor candidates registered in the motion vector predictor candidate list is smaller than a predetermined number (a natural number of 2 or more), repeated motions with the same value are repeated until the number of motion vector predictor candidates reaches a predetermined number. A predicted motion vector candidate restriction step of registering vector candidates in the predicted motion vector candidate list;
A prediction motion vector selection step of selecting a prediction motion vector of the encoding target block from the prediction motion vector candidate list;
A moving picture encoding program for causing a computer to execute an encoding step for encoding information indicating an index of a prediction motion vector to be selected in the prediction motion vector candidate list.
パケット化された前記符号化データを送信する送信部とを備え、
前記動画像符号化方法は、
符号化対象ブロックと同一ピクチャ内の前記符号化対象ブロックと近接する符号化済みのブロックのいずれかの動きベクトルから、第１及び第２の予測動きベクトル候補を導出し、符号化対象ブロックと異なる符号化済みのピクチャ内のブロックのいずれかの動きベクトルから、第３の予測動きベクトル候補を導出する予測動きベクトル候補生成ステップと、
所定の条件を満たす前記第１、第２及び第３の予測動きベクトル候補を予測動きベクトル候補リストに登録する予測動きベクトル候補登録ステップと、
前記予測動きベクトル候補登録ステップにより前記予測動きベクトル候補リストに登録された前記第１の予測動きベクトル候補の値と前記第２の予測動きベクトル候補の値とが同じとき、前記予測動きベクトル候補リストから第２の予測動きベクトル候補を削除する予測動きベクトル候補冗長判定ステップと、
前記予測動きベクトル候補リストに登録された予測動きベクトル候補の数が所定数（２以上の自然数）よりも小さい場合に、予測動きベクトル候補の数が所定数に達するまで繰り返して同じ値の予測動きベクトル候補を前記予測動きベクトル候補リストに登録する予測動きベクトル候補制限ステップと、
前記予測動きベクトル候補リストから、前記符号化対象ブロックの予測動きベクトルを選択する予測動きベクトル選択ステップと、
前記予測動きベクトル候補リストにおける選択すべき予測動きベクトルのインデックスを示す情報を符号化する符号化ステップとを有することを特徴とする送信装置。 A packet processing unit that obtains encoded data by packetizing an encoded bit string encoded by a moving image encoding method that encodes a moving image using a motion vector in units of blocks obtained by dividing each picture;
A transmission unit for transmitting the packetized encoded data,
The moving image encoding method includes:
First and second motion vector predictor candidates are derived from one of the motion vectors of an encoded block close to the encoding target block in the same picture as the encoding target block, and are different from the encoding target block. either the motion vectors or these blocks in coded picture, a predicted motion vector candidate generation step of deriving a third candidate predicted motion vector,
A predicted motion vector candidate registration step of registering the first, second and third predicted motion vector candidates satisfying a predetermined condition in a predicted motion vector candidate list;
When the value of the first motion vector predictor candidate registered in the motion vector predictor candidate list in the motion vector predictor candidate registration step is the same as the value of the second motion vector predictor candidate, the motion vector predictor candidate list A motion vector predictor redundancy determining step for deleting the second motion vector predictor candidate from
When the number of motion vector predictor candidates registered in the motion vector predictor candidate list is smaller than a predetermined number (a natural number of 2 or more), repeated motions with the same value are repeated until the number of motion vector predictor candidates reaches a predetermined number. A predicted motion vector candidate restriction step of registering vector candidates in the predicted motion vector candidate list;
A prediction motion vector selection step of selecting a prediction motion vector of the encoding target block from the prediction motion vector candidate list;
And a coding step for coding information indicating an index of a motion vector predictor to be selected in the motion vector predictor candidate list.
パケット化された前記符号化データを送信する送信ステップとを備え、
前記動画像符号化方法は、
符号化対象ブロックと同一ピクチャ内の前記符号化対象ブロックと近接する符号化済みのブロックのいずれかの動きベクトルから、第１及び第２の予測動きベクトル候補を導出し、符号化対象ブロックと異なる符号化済みのピクチャ内のブロックのいずれかの動きベクトルから、第３の予測動きベクトル候補を導出する予測動きベクトル候補生成ステップと、
所定の条件を満たす前記第１、第２及び第３の予測動きベクトル候補を予測動きベクトル候補リストに登録する予測動きベクトル候補登録ステップと、
前記予測動きベクトル候補登録ステップにより前記予測動きベクトル候補リストに登録された前記第１の予測動きベクトル候補の値と前記第２の予測動きベクトル候補の値とが同じとき、前記予測動きベクトル候補リストから第２の予測動きベクトル候補を削除する予測動きベクトル候補冗長判定ステップと、
前記予測動きベクトル候補リストに登録された予測動きベクトル候補の数が所定数（２以上の自然数）よりも小さい場合に、予測動きベクトル候補の数が所定数に達するまで繰り返して同じ値の予測動きベクトル候補を前記予測動きベクトル候補リストに登録する予測動きベクトル候補制限ステップと、
前記予測動きベクトル候補リストから、前記符号化対象ブロックの予測動きベクトルを選択する予測動きベクトル選択ステップと、
前記予測動きベクトル候補リストにおける選択すべき予測動きベクトルのインデックスを示す情報を符号化する符号化ステップとを有することを特徴とする送信方法。 A packet processing step of packetizing an encoded bit string encoded by a moving image encoding method for encoding a moving image using a motion vector in units of blocks obtained by dividing each picture, and obtaining encoded data;
Transmitting the packetized encoded data, and
The moving image encoding method includes:
First and second motion vector predictor candidates are derived from one of the motion vectors of an encoded block close to the encoding target block in the same picture as the encoding target block, and are different from the encoding target block. either the motion vectors or these blocks in coded picture, a predicted motion vector candidate generation step of deriving a third candidate predicted motion vector,
A predicted motion vector candidate registration step of registering the first, second and third predicted motion vector candidates satisfying a predetermined condition in a predicted motion vector candidate list;
When the value of the first motion vector predictor candidate registered in the motion vector predictor candidate list in the motion vector predictor candidate registration step is the same as the value of the second motion vector predictor candidate, the motion vector predictor candidate list A motion vector predictor redundancy determining step for deleting the second motion vector predictor candidate from
When the number of motion vector predictor candidates registered in the motion vector predictor candidate list is smaller than a predetermined number (a natural number of 2 or more), repeated motions with the same value are repeated until the number of motion vector predictor candidates reaches a predetermined number. A predicted motion vector candidate restriction step of registering vector candidates in the predicted motion vector candidate list;
A prediction motion vector selection step of selecting a prediction motion vector of the encoding target block from the prediction motion vector candidate list;
And a coding step for coding information indicating an index of a motion vector predictor to be selected in the motion vector predictor candidate list.
パケット化された前記符号化データを送信する送信ステップとをコンピュータに実行させ、
前記動画像符号化方法は、
符号化対象ブロックと同一ピクチャ内の前記符号化対象ブロックと近接する符号化済みのブロックのいずれかの動きベクトルから、第１及び第２の予測動きベクトル候補を導出し、符号化対象ブロックと異なる符号化済みのピクチャ内のブロックのいずれかの動きベクトルから、第３の予測動きベクトル候補を導出する予測動きベクトル候補生成ステップと、
所定の条件を満たす前記第１、第２及び第３の予測動きベクトル候補を予測動きベクトル候補リストに登録する予測動きベクトル候補登録ステップと、
前記予測動きベクトル候補登録ステップにより前記予測動きベクトル候補リストに登録された前記第１の予測動きベクトル候補の値と前記第２の予測動きベクトル候補の値とが同じとき、前記予測動きベクトル候補リストから第２の予測動きベクトル候補を削除する予測動きベクトル候補冗長判定ステップと、
前記予測動きベクトル候補リストに登録された予測動きベクトル候補の数が所定数（２以上の自然数）よりも小さい場合に、予測動きベクトル候補の数が所定数に達するまで繰り返して同じ値の予測動きベクトル候補を前記予測動きベクトル候補リストに登録する予測動きベクトル候補制限ステップと、
前記予測動きベクトル候補リストから、前記符号化対象ブロックの予測動きベクトルを選択する予測動きベクトル選択ステップと、
前記予測動きベクトル候補リストにおける選択すべき予測動きベクトルのインデックスを示す情報を符号化する符号化ステップとを有することを特徴とする送信プログラム。 A packet processing step of packetizing an encoded bit string encoded by a moving image encoding method for encoding a moving image using a motion vector in units of blocks obtained by dividing each picture, and obtaining encoded data;
Transmitting the packetized encoded data to the computer, and
The moving image encoding method includes:
First and second motion vector predictor candidates are derived from one of the motion vectors of an encoded block close to the encoding target block in the same picture as the encoding target block, and are different from the encoding target block. either the motion vectors or these blocks in coded picture, a predicted motion vector candidate generation step of deriving a third candidate predicted motion vector,
A predicted motion vector candidate registration step of registering the first, second and third predicted motion vector candidates satisfying a predetermined condition in a predicted motion vector candidate list;
When the value of the first motion vector predictor candidate registered in the motion vector predictor candidate list in the motion vector predictor candidate registration step is the same as the value of the second motion vector predictor candidate, the motion vector predictor candidate list A motion vector predictor redundancy determining step for deleting the second motion vector predictor candidate from
When the number of motion vector predictor candidates registered in the motion vector predictor candidate list is smaller than a predetermined number (a natural number of 2 or more), repeated motions with the same value are repeated until the number of motion vector predictor candidates reaches a predetermined number. A predicted motion vector candidate restriction step of registering vector candidates in the predicted motion vector candidate list;
A prediction motion vector selection step of selecting a prediction motion vector of the encoding target block from the prediction motion vector candidate list;
And a coding step for coding information indicating an index of a motion vector predictor to be selected in the motion vector predictor candidate list.
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| TW104140304A TW201626802A (en) | 2011-09-28 | 2012-09-28 | Video encoding device, video encoding method, video encoding program, transmitting device, transmitting method and transmitting program |
| TW101135876A TWI523496B (en) | 2011-09-28 | 2012-09-28 | A motion picture coding apparatus, a motion picture coding method, a motion picture coding program, a transmission apparatus, a transmission method and a transmission program, and a motion picture decoding apparatus, a motion picture decoding method, a video decoding program, a reception Apparatus, and a reception method And the receiving program |
| KR1020177004758A KR101809881B1 (en) | 2011-09-28 | 2012-09-28 | Video decoding device, video decoding method and recording medium storing video decoding program |
| TW105124641A TWI586155B (en) | 2011-09-28 | 2012-09-28 | A motion picture decoding apparatus, a motion picture decoding method, and a recording medium |
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| TW105124639A TWI577184B (en) | 2011-09-28 | 2012-09-28 | A motion picture decoding apparatus, a motion picture decoding method, and a recording medium |
| KR1020177004756A KR101809879B1 (en) | 2011-09-28 | 2012-09-28 | Video encoding device, video encoding method and recording medium storing video encoding program |
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| BR112014007492-5A BR112014007492B1 (en) | 2011-09-28 | 2012-09-28 | MOTION IMAGE CODING DEVICE, MOTION IMAGE CODING METHOD, MOVING IMAGE DECODING DEVICE AND MOTION IMAGE DECODING METHOD |
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| US14/226,268 US9674549B2 (en) | 2011-09-28 | 2014-03-26 | Moving picture coding device, moving picture coding method, moving picture coding program, transmitting device, transmission method and transmission program, and moving picture decoding device, moving picture decoding method, moving picture decoding program, receiving device, reception method and reception program |
| US15/165,164 US9661343B2 (en) | 2011-09-28 | 2016-05-26 | Moving picture coding device, moving picture coding method, moving picture coding program, transmitting device, transmission method and transmission program, and moving picture decoding device, moving picture decoding method, moving picture decoding program, receiving device, reception method and reception program |
| US15/581,239 US9924194B2 (en) | 2011-09-28 | 2017-04-28 | Moving picture decoding device, moving picture decoding method, and moving picture decoding program |
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