JP2015513386A - メタデータ支援ビデオ復号 - Google Patents
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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
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
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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
- H04N19/46—Embedding additional information in the video signal during the compression process
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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
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/103—Selection of coding mode or of prediction mode
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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
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
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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
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/129—Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
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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
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
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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
- H04N19/174—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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
Abstract
Description
図1は、説明する手法とツールが実装され得る好適なコンピューティング環境(100)の一般化例を示す。コンピューティング環境(100)は、利用や機能性の範囲について限定することを意図したり示唆するものではない。本手法とツールは広範な汎用コンピューティング環境や特定目的コンピューティング環境で実施することができるからである。
II.メタデータ支援復号最適化の概要
III.メタデータを用いたデコーダエンジン選択
IV.ビデオデコーダエンジンの例
V.メタデータを用いる最適化ビットストリームパーサ
Claims (10)
- ビデオデコーダを実装するコンピューティングデバイスにおいて、
ファイルコンテナとともに符号化ビデオシーケンスを受信するステップと、
前記ビデオデコーダを実装するコンピューティングデバイスで、前記ファイルコンテナ中の前記符号化ビデオシーケンスに関連するメタデータを分析するステップと、
前記メタデータを用いて、前記ビデオデコーダにおけるデコーダ最適化決定を行うステップとを有する、
方法。 - 前記デコーダ最適化決定は、前記メタデータに基づき、複数のデコーダエンジンから、前記復号を実行するデコーダエンジンを選択するステップを含む、
請求項1に記載の方法。 - 前記複数のデコーダエンジンは、メインプロファイル及びそれ以上のプロファイルのビデオシーケンスを復号できるデコーダエンジンと、ベースライン、メイン及びそれ以上のプロファイルを復号できるデコーダエンジンとのうち一方を含むリストから選択される、請求項2に記載の方法。
- 前記メインプロファイル及びそれ以上のプロファイルのビデオシーケンスを復号できるデコーダエンジンは、ハードウェア高速化用のグラフィックス処理ユニットを含み、前記ベースライン、メイン及びそれ以上のプロファイルを復号できるデコーダエンジンは、中央処理ユニットを含む、請求項3に記載の方法。
- 前記復号で用いられるアルゴリズムのタイプのメタデータを検索するステップと、前記アルゴリズムのタイプに基づき復号エンジンを選択するステップとをさらに含む、
請求項1に記載の方法。 - 前記アルゴリズムのタイプは、arbitrary slice ordering(ASO)とflexible macroblock ordering(FMO)とを含む、請求項5に記載の方法。
- 前記メタデータを検索するステップは、前記符号化ビデオシーケンス中の一以上のパラメータセットを解析するステップを含む、請求項5に記載の方法。
- 前記符号化ビデオシーケンスに関連する長さ情報とロケーション情報とを読み出すステップと、前記長さ及びロケーション情報を前記メタデータとしてデコーダエンジンに送るステップとをさらに含む、請求項1に記載の方法。
- プログラムされたコンピューティングデバイスに方法を実行させるコンピュータ実行可能命令をエンコードしたコンピュータ読み取り可能記憶デバイスであって、前記方法は、
デコーダにおいて符号化ビデオシーケンスを受け取るステップと、
前記符号化ビデオシーケンス中のメタデータを分析して、少なくとも2つのデコーダエンジンのどちらがより効率的か決定するステップと、
前記符号化ビデオシーケンスを前記決定されたデコーダエンジンに転送するステップとを有する、
コンピュータ読み取り可能記憶デバイス。 - ビデオデコーダを実装するコンピューティングデバイスであって、一以上の処理ユニットを有し、方法を実行するように構成され、前記方法は、
ビデオシーケンスのビットストリーム中の符号化データを受け取るステップであって、前記ビットストリームはメタデータに含まれる一以上のパラメータセットを含む、ステップと、
前記一以上のパラメータセットを解析して、arbitrary slice orderingまたはflexible macroblock orderingが用いられるか決定するステップと、
arbitrary slice orderingまたはflexible macroblock orderingが用いられたとき、ベースライン、メイン及びそれ以上のプロファイルを復号できる第1のデコーダエンジンに、前記符号化データを転送するステップと、
前記arbitrary slice orderingまたはflexible macroblock orderingが用いられないとき、メインプロファイル及びそれ以上のプロファイルを復号できる、前記第1のデコーダエンジンとは異なる、第2のデコーダエンジンに、前記符号化データを転送するステップとを有する、
コンピューティングデバイス。
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Application Number | Priority Date | Filing Date | Title |
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US13/399,769 | 2012-02-17 | ||
US13/399,769 US9241167B2 (en) | 2012-02-17 | 2012-02-17 | Metadata assisted video decoding |
PCT/US2013/026004 WO2013123100A1 (en) | 2012-02-17 | 2013-02-13 | Metadata assisted video decoding |
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JP2017199533A Division JP6423061B2 (ja) | 2012-02-17 | 2017-10-13 | ビデオデコーダを実装するコンピューティングデバイス及びその方法 |
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JP2015513386A true JP2015513386A (ja) | 2015-05-11 |
JP2015513386A5 JP2015513386A5 (ja) | 2016-03-10 |
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JP2014557749A Pending JP2015513386A (ja) | 2012-02-17 | 2013-02-13 | メタデータ支援ビデオ復号 |
JP2017199533A Active JP6423061B2 (ja) | 2012-02-17 | 2017-10-13 | ビデオデコーダを実装するコンピューティングデバイス及びその方法 |
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US (2) | US9241167B2 (ja) |
EP (1) | EP2815574B1 (ja) |
JP (2) | JP2015513386A (ja) |
KR (1) | KR102006044B1 (ja) |
CN (1) | CN104106264B (ja) |
WO (1) | WO2013123100A1 (ja) |
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JP7467675B2 (ja) | 2021-01-08 | 2024-04-15 | テンセント・アメリカ・エルエルシー | ビデオコーディングのための方法および装置 |
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