JP2017508371A - 3dビデオコーディングにおけるカメラパラメータ処理方法および装置 - Google Patents
3dビデオコーディングにおけるカメラパラメータ処理方法および装置 Download PDFInfo
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- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
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- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
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- H04N13/128—Adjusting depth or disparity
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- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/194—Transmission of image signals
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/172—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
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- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/174—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
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- H—ELECTRICITY
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- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N2013/0074—Stereoscopic image analysis
- H04N2013/0081—Depth or disparity estimation from stereoscopic image signals
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- H04N2013/0074—Stereoscopic image analysis
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Abstract
Description
Claims (10)
- 3次元(3D)ビデオデコーディング方法であって、
デプス値を視差値に変換するためのカメラパラメータを第1のシンタックスを介して受信するステップと、
前スライスまたは前ピクチャに適用される前記カメラパラメータが現在スライスまたは現在ピクチャに適用されるか否かを判断するステップと、
前記カメラパラメータが前記現在スライスまたは現在ピクチャに適用される場合、前記カメラパラメータに基づいて現在ブロックに関する視差値を導出するステップと、を有する、3Dビデオデコーディング方法。 - 前スライスまたは前ピクチャのために使われた前記カメラパラメータが前記現在スライスまたは現在ピクチャのために使われるか否かを示すフラグ情報を第2のシンタックスを介して受信するステップをさらに有し、
前記フラグ情報が1の場合、前記カメラパラメータは、前記現在スライスまたは現在ピクチャのために適用され、
前記フラグ情報が0の場合、前記現在スライスまたは現在ピクチャのための新しいカメラパラメータが前記第2のシンタックスに有されて受信される、請求項1に記載の3Dビデオデコーディング方法。 - 前記第1のシンタックスは、ビデオパラメータセット(VPS)シンタックスであり、前記第2のシンタックスは、スライスセグメントヘッダシンタックスである、請求項2に記載の3Dビデオデコーディング方法。
- 前記第1のシンタックスは、第1のピクチャパラメータセット(PPS)シンタックスであり、前記第2のシンタックスは、第2のPPSシンタックスである、請求項2に記載の3Dビデオデコーディング方法。
- 前記現在スライスまたは現在ピクチャのために前記カメラパラメータが更新されるか否かを示すフラグ情報を第2のシンタックスを介して受信するステップをさらに有し、
前記フラグ情報が0の場合、前記カメラパラメータは、更新されずに前記現在スライスまたは現在ピクチャのために適用され、
前記フラグ情報が1の場合、前記カメラパラメータは、前記第2のシンタックスに有されて受信されるパラメータ値に基づいて更新され、前記更新されたカメラパラメータが前記現在スライスまたは現在ピクチャのために適用される、請求項1に記載の3Dビデオデコーディング方法。 - 前記第2のシンタックスに有されて受信されるパラメータ値は、前記カメラパラメータに対する差分値である、請求項5に記載の3Dビデオデコーディング方法。
- 前記現在スライスまたは現在ピクチャのために既存の前記カメラパラメータに対する差分値が存在するか否かを示すフラグ情報を第2のシンタックスを介して受信するステップをさらに有し、
前記フラグ情報が0の場合、前記カメラパラメータは、前記現在スライスまたは現在ピクチャのために適用され、
前記フラグ情報が1の場合、前記カメラパラメータおよび前記第2のシンタックスに有されて受信される差分値に基づいて導出された新しいカメラパラメータが前記現在スライスまたは現在ピクチャのために適用される、請求項1に記載の3Dビデオデコーディング方法。 - 前記カメラパラメータの値は、前記第1のシンタックスを介して受信されたcp_scale、cp_off、cp_inv_scale_plus_scaleおよびcp_inv_off_plus_offシンタックス要素のうち少なくとも一つに基づいて導出される、請求項1に記載の3Dビデオデコーディング方法。
- 前記視差は、以下の数式に基づいて計算され、
dv=(s*v+o)>>n
ここで、前記dvは前記視差値であり、sはスケール因子であり、oはオフセットであり、nはシフトパラメータであり、前記スケール因子は、前記cp_scaleシンタックス要素の値またはcp_inv_scale_plus_scaleシンタックス要素の値に基づいて決定され、前記オフセットは、前記cp_offシンタックス要素の値または前記cp_inv_off_plus_offシンタックス要素の値に基づいて決定される、請求項8に記載の3Dビデオデコーディング方法。 - 現在ビューとデプスサンプルを有しビューインデックスがjであるビューとの間の視差ベクトルを導出するための逆方向変換の場合、前記スケール因子は、前記cp_scaleシンタックス要素の値に基づいて決定され、前記オフセットは、前記cp_offシンタックス要素の値に基づいて決定され、
前記ビューインデックスがjであるビューとデプスサンプルを有する現在ビューとの間の視差ベクトルを導出するための順方向変換の場合、前記スケール因子は、前記cp_inv_scale_plus_scaleシンタックス要素の値に基づいて決定され、前記オフセットは、前記cp_inv_off_plus_offシンタックス要素の値に基づいて決定される、請求項9に記載の3Dビデオデコーディング方法。
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US201462061161P | 2014-10-08 | 2014-10-08 | |
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US201462092273P | 2014-12-16 | 2014-12-16 | |
US62/092,273 | 2014-12-16 | ||
PCT/KR2015/010129 WO2016056779A1 (ko) | 2014-10-08 | 2015-09-24 | 3d 비디오 코딩에서 카메라 파라미터 처리 방법 및 장치 |
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EP (1) | EP3206401A4 (ja) |
JP (1) | JP6445026B2 (ja) |
KR (1) | KR20170069957A (ja) |
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WO2016056779A1 (ko) | 2016-04-14 |
US10419779B2 (en) | 2019-09-17 |
CN106105218B (zh) | 2019-04-09 |
US20160337665A1 (en) | 2016-11-17 |
KR20170069957A (ko) | 2017-06-21 |
EP3206401A1 (en) | 2017-08-16 |
EP3206401A4 (en) | 2018-06-06 |
CN106105218A (zh) | 2016-11-09 |
JP6445026B2 (ja) | 2018-12-26 |
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