JP6947412B2 - 組み合わせられたhdr/ldrビデオストリーミング - Google Patents
組み合わせられたhdr/ldrビデオストリーミング Download PDFInfo
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- JP6947412B2 JP6947412B2 JP2018561189A JP2018561189A JP6947412B2 JP 6947412 B2 JP6947412 B2 JP 6947412B2 JP 2018561189 A JP2018561189 A JP 2018561189A JP 2018561189 A JP2018561189 A JP 2018561189A JP 6947412 B2 JP6947412 B2 JP 6947412B2
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Description
本願は、2016年5月31日に出願された米国出願第15/169,012号に対する優先権および利益を主張するものであり、この出願は、2016年2月12日に出願された米国仮特許出願第62/294,820号の利益を主張するものであり、これらの各々の内容は、参照により本明細書中に援用される。
本開示は、低ダイナミックレンジおよび高ダイナミックレンジディスプレイデバイス上での表示のためのビデオのリアルタイム生成およびブロードキャストに関する。
本明細書は、例えば、以下の項目も提供する。
(項目1)
高ダイナミックレンジ(HDR)および低ダイナミックレンジ(LDR)ディスプレイのためのビデオをストリームさせるための方法であって、前記方法は、
フレーム独立ピクセル値をHDRビデオカメラ上の複数の画像センサから受信し、HDR信号を生成するステップと、
前記HDR信号を処理し、LDR信号および残留信号を備える出力信号を生成するステップと、
HDRおよびLDRディスプレイのための前記出力信号を伝送するステップと、
を含む、方法。
(項目2)
前記HDR信号を処理するステップは、HDRビデオをトーンマッピングし、前記LDR信号を生成し、前記LDR信号を前記HDR信号から減算し、前記残留信号を生成するステップを含む、項目1に記載の方法。
(項目3)
MPEGエンコーダを使用して、LDRビデオを圧縮するステップをさらに含む、項目2に記載の方法。
(項目4)
前記出力信号は、LDRディスプレイによって8ビットビデオとして表示可能であり、HDRディスプレイによってHDRビデオとして表示可能である、項目1に記載の方法。
(項目5)
前記HDR信号は、
飽和されているピクセル値を識別するカーネル演算と、
前記ピクセル値を融合し、前記HDR信号を生成する融合演算と、
を含むパイプラインによって、前記ピクセル値から生成される、項目1に記載の方法。
(項目6)
前記複数の画像センサは全て、単一レンズを通して画像を同時に捕捉する、項目5に記載の方法。
(項目7)
入射光を前記レンズを通して受信し、少なくとも1つのビーム分割器を介して、前記光を前記複数の画像センサ上に分割するステップをさらに含み、撮像レンズによって集められた前記光の少なくとも95%は、前記複数の画像センサによって捕捉される、項目6に記載の方法。
(項目8)
前記複数の画像センサは、少なくとも高露光(HE)センサと、中間露光(ME)センサとを含み、シーケンスの融合は、飽和されていないHEピクセル値および前記飽和されているピクセル値に対応するMEピクセル値の使用を含む、項目6に記載の方法。
(項目9)
前記カーネル演算を通して、後に着信するピクセル値を依然としてストリームさせながら、前記ピクセル値の一部の融合を開始するステップをさらに含む、項目6に記載の方法。
(項目10)
前記パイプラインは、フィールドプログラマブルゲートアレイおよび特定用途向け集積回路から成る群から選択された処理デバイスによって提供され、さらに、前記画像センサのそれぞれは、カラーフィルタアレイを備え、前記方法はさらに、前記融合ステップ後、前記HDR信号をデモザイク処理するステップを含む、項目9に記載の方法。
(項目11)
複数の画像センサは、光レベル以外は光学的に同じ画像を捕捉する、項目10に記載の方法。
ある実施形態では、融合139は、センサ213上のピクセル615およびその近傍601(図6参照)に関する4つのケース毎に、特定の動作を含む。
等式1−[A]、すなわち、LEセンサのための色補正行列を使用してSEピクセル値を補正する。
本発明は、画像をLEセンサの色補正空間からMEセンサの色補正空間に転換するための方法1001を含み、以下の等式4に図示される。
等式4−LEピクセル値をLE色補正空間からME色補正空間に転換する。
均等物
Claims (9)
- 高ダイナミックレンジ(HDR)および低ダイナミックレンジ(LDR)ディスプレイのためのビデオをストリームさせるための方法であって、前記方法は、
フレーム独立ピクセル値をHDRビデオカメラ上の複数の画像センサから受信することであって、前記複数の画像センサは全て、単一レンズを通して画像を同時に捕捉する、ことと、
パイプラインによって前記ピクセル値からHDR信号を生成することであって、前記パイプラインは、
飽和されているピクセル値を識別するカーネル演算と、
前記ピクセル値を融合し、前記HDR信号を生成する融合演算と、
を含む、ことと、
前記HDR信号を処理し、LDR信号および残留信号を備える出力信号を生成することと、
HDRおよびLDRディスプレイのための前記出力信号を伝送することと、
を含む、方法。 - 前記HDR信号を処理することは、HDRビデオをトーンマッピングし、前記LDR信号を生成し、前記LDR信号を前記HDR信号から減算し、前記残留信号を生成することを含む、請求項1に記載の方法。
- MPEGエンコーダを使用して、LDRビデオを圧縮することをさらに含む、請求項2に記載の方法。
- 前記出力信号は、LDRディスプレイによって8ビットビデオとして表示可能であり、HDRディスプレイによってHDRビデオとして表示可能である、請求項1に記載の方法。
- 入射光を前記レンズを通して受信し、少なくとも1つのビーム分割器を介して、前記光を前記複数の画像センサ上に分割することをさらに含み、撮像レンズによって集められた前記光の少なくとも95%は、前記複数の画像センサによって捕捉される、請求項1に記載の方法。
- 前記複数の画像センサは、少なくとも高露光(HE)センサと、中間露光(ME)センサとを含み、シーケンスの融合は、飽和されていないHEピクセル値および前記飽和されているピクセル値に対応するMEピクセル値の使用を含む、請求項1に記載の方法。
- 前記カーネル演算を通して、後に着信するピクセル値を依然としてストリームさせながら、前記ピクセル値の一部の融合を開始することをさらに含む、請求項1に記載の方法。
- 前記パイプラインは、フィールドプログラマブルゲートアレイおよび特定用途向け集積回路から成る群から選択された処理デバイスによって提供され、さらに、前記画像センサのそれぞれは、カラーフィルタアレイを備え、前記方法はさらに、前記融合の後に前記HDR信号をデモザイク処理することを含む、請求項7に記載の方法。
- 複数の画像センサは、光レベル以外は光学的に同じ画像を捕捉する、請求項8に記載の方法。
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US201662294820P | 2016-02-12 | 2016-02-12 | |
US62/294,820 | 2016-02-12 | ||
US15/169,012 US10257394B2 (en) | 2016-02-12 | 2016-05-31 | Combined HDR/LDR video streaming |
US15/169,012 | 2016-05-31 | ||
PCT/US2017/017400 WO2017139599A1 (en) | 2016-02-12 | 2017-02-10 | Combined hdr/ldr video streaming |
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JP2019506109A JP2019506109A (ja) | 2019-02-28 |
JP6947412B2 true JP6947412B2 (ja) | 2021-10-13 |
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JP2018561187A Active JP6928388B2 (ja) | 2016-02-12 | 2017-02-08 | 光学システム内の複数のセンサにわたる色整合 |
JP2018561189A Active JP6947412B2 (ja) | 2016-02-12 | 2017-02-10 | 組み合わせられたhdr/ldrビデオストリーミング |
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EP (2) | EP3414539B1 (ja) |
JP (2) | JP6928388B2 (ja) |
AU (1) | AU2017217929B2 (ja) |
CA (2) | CA3016421A1 (ja) |
WO (2) | WO2017139363A1 (ja) |
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US10264196B2 (en) | 2016-02-12 | 2019-04-16 | Contrast, Inc. | Systems and methods for HDR video capture with a mobile device |
US10257393B2 (en) * | 2016-02-12 | 2019-04-09 | Contrast, Inc. | Devices and methods for high dynamic range video |
EP3497925B1 (en) | 2016-08-09 | 2022-11-23 | Contrast, Inc. | Real-time hdr video for vehicle control |
US11265530B2 (en) | 2017-07-10 | 2022-03-01 | Contrast, Inc. | Stereoscopic camera |
CN108038835B (zh) * | 2017-11-27 | 2021-07-13 | 杭州电子科技大学 | 显著性驱动的图像重要区域马赛克自动生成方法 |
US10951888B2 (en) | 2018-06-04 | 2021-03-16 | Contrast, Inc. | Compressed high dynamic range video |
WO2019236626A2 (en) | 2018-06-07 | 2019-12-12 | Dolby Laboratories Licensing Corporation | Hdr image generation from single-shot hdr color image sensors |
WO2020036955A1 (en) | 2018-08-14 | 2020-02-20 | Contrast, Inc. | Image processing noise reduction |
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