JP2013009303A5

JP2013009303A5 -

Info

Publication number: JP2013009303A5
Application number: JP2012043273A
Authority: JP
Filing date: 2012-02-29
Publication date: 2014-01-16
Anticipated expiration: 2032-02-29

Description

本発明のさらに別の態様は、受信装置である。この装置は、ブロック単位で動き補償予測を行うことにより動画像が符号化された符号化ビット列を受信して復号する受信装置であって、前記符号化ビット列がパケット化された符号化データを受信する受信部と、受信された前記符号化データをパケット処理して元の符号化ビット列を復元する復元部と、復号対象ブロックのブロックサイズが所定の閾サイズより大きい場合、復号済み画像にあるブロックから予測動きベクトル候補を導出し、前記復号対象ブロックのブロックサイズが前記所定の閾サイズ以下の場合、前記予測動きベクトル候補を導出しない予測動きベクトル候補生成部（１３３）とを備える。 Yet another embodiment of the present invention is a receiving device. This apparatus is a receiving apparatus that receives and decodes an encoded bit string in which a moving image is encoded by performing motion compensation prediction in units of blocks, and receives encoded data in which the encoded bit string is packetized. A receiving unit that performs packet processing on the received encoded data to restore the original encoded bit string, and a block in the decoded image when the block size of the decoding target block is larger than a predetermined threshold size And a motion vector predictor candidate generation unit (133) that does not derive the motion vector predictor candidate when the block size of the decoding target block is equal to or smaller than the predetermined threshold size.

本発明のさらに別の態様は、受信方法である。この方法は、ブロック単位で動き補償予測を行うことにより動画像が符号化された符号化ビット列を受信して復号する受信方法であって、前記符号化ビット列がパケット化された符号化データを受信する受信ステップと、受信された前記符号化データをパケット処理して元の符号化ビット列を復元する復元ステップと、復号対象ブロックのブロックサイズが所定の閾サイズより大きい場合、復号済み画像にあるブロックから予測動きベクトル候補を導出し、前記復号対象ブロックのブロックサイズが前記所定の閾サイズ以下の場合、前記予測動きベクトル候補を導出しない予測動きベクトル候補生成ステップとを備える。 Yet another embodiment of the present invention is a reception method. This method is a receiving method for receiving and decoding a coded bit string in which a moving image is coded by performing motion compensation prediction in units of blocks, and receiving coded data in which the coded bit string is packetized. A receiving step that performs packet processing on the received encoded data to restore the original encoded bit string, and a block in a decoded image if the block size of the decoding target block is larger than a predetermined threshold size A prediction motion vector candidate is derived from the prediction motion vector candidate, and when the block size of the decoding target block is equal to or smaller than the predetermined threshold size, a prediction motion vector candidate generation step that does not derive the prediction motion vector candidate is provided.

Claims

A video decoding device that performs motion compensation prediction in block units,
When the block size of the decoding target block is larger than a predetermined threshold size, a prediction motion vector candidate is derived from the block in the decoded image, and when the block size of the decoding target block is equal to or smaller than the predetermined threshold size, the prediction motion A moving picture decoding apparatus comprising a predicted motion vector candidate generation unit that does not derive a vector candidate.

A video decoding method for performing motion compensation prediction in units of blocks,
When the block size of the decoding target block is larger than a predetermined threshold size, a prediction motion vector candidate is derived from the block in the decoded image, and when the block size of the decoding target block is equal to or smaller than the predetermined threshold size, the prediction motion A moving picture decoding method comprising a predicted motion vector candidate generation step that does not derive a vector candidate.

A video decoding program that performs motion compensation prediction in units of blocks,
When the block size of the decoding target block is larger than a predetermined threshold size, a prediction motion vector candidate is derived from the block in the decoded image, and when the block size of the decoding target block is equal to or smaller than the predetermined threshold size, the prediction motion A moving picture decoding program that causes a computer to execute a predicted motion vector candidate generation step that does not derive a vector candidate.

  A receiving device that receives and decodes an encoded bit sequence in which a moving image is encoded by performing motion compensation prediction in units of blocks,
  A receiving unit for receiving encoded data in which the encoded bit string is packetized;
  A restoring unit that packet-processes the received encoded data and restores the original encoded bit string;
  When the block size of the decoding target block is larger than a predetermined threshold size, a prediction motion vector candidate is derived from the block in the decoded image, and when the block size of the decoding target block is equal to or smaller than the predetermined threshold size, the prediction motion A receiving apparatus comprising: a motion vector predictor candidate generation unit that does not derive vector candidates.

  A receiving method for receiving and decoding an encoded bit string in which a moving image is encoded by performing motion compensation prediction in block units,
  Receiving step of receiving encoded data in which the encoded bit string is packetized;
  A restoration step of packetizing the received encoded data to restore the original encoded bit sequence;
  When the block size of the decoding target block is larger than a predetermined threshold size, a prediction motion vector candidate is derived from the block in the decoded image, and when the block size of the decoding target block is equal to or smaller than the predetermined threshold size, the prediction motion And a prediction motion vector candidate generation step that does not derive a vector candidate.

  A reception program that receives and decodes an encoded bit sequence in which a moving image is encoded by performing motion compensation prediction in units of blocks,
  Receiving step of receiving encoded data in which the encoded bit string is packetized;
  A restoration step of packetizing the received encoded data to restore the original encoded bit sequence;
  When the block size of the decoding target block is larger than a predetermined threshold size, a prediction motion vector candidate is derived from the block in the decoded image, and when the block size of the decoding target block is equal to or smaller than the predetermined threshold size, the prediction motion A reception program that causes a computer to execute a predicted motion vector candidate generation step that does not derive a vector candidate.