[특허]Interpolation of video compression frames

[미국특허] Interpolation of video compression frames 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04N-007/12 H04N-019/577 H04N-019/51 H04N-019/147 H04N-019/513 H04N-019/61 H04N-019/114 H04N-019/117 H04N-019/137 H04N-019/186 H04N-019/162 H04N-019/18 H04N-019/17 H04N-019/48 H04N-019/44 H04N-019/82 H04N-019/433 H04N-019/573 H04N-019/58 H04N-019/176 H04N-019/50 H04N-019/517 H04N-019/52 H04N-019/593 H04N-019/70 H04N-019/182 H04N-019/587
출원번호	US-0729628 (2015-06-03)
등록번호	US-9247269 (2016-01-26)
발명자 / 주소	Demos, Gary A.
출원인 / 주소	Dolby Laboratories Licensing Corporation
대리인 / 주소	Fish & Richardson P.C.
인용정보	피인용 횟수 : 5 인용 특허 : 133

초록 ▼

Coding techniques for a video image compression system involve improving an image quality of a sequence of two or more bi-directionally predicted intermediate frames, where each of the frames includes multiple pixels. One method involves determining a brightness value of at least one pixel of each bi-directionally predicted intermediate frame in the sequence as an equal average of brightness values of pixels in non-bidirectionally predicted frames bracketing the sequence of bi-directionally predicted intermediate frames. The brightness values of the pixels in at least one of the non-bidirectionally predicted frames is converted from a non-linear representation.

대표청구항 ▼

1. An apparatus comprising a video bitstream stored on one or more non-transitory machine-readable media, the video bitstream characterized by: picture areas of predicted and bidirectional predicted frames, wherein at least one picture area of a bidirectional predicted frame is in a compressed format, and wherein the compressed format comprises:a signal indicating an interpolative motion vector prediction mode for the at least one picture area based on one or more referenceable frames;a signal indicating a pixel interpolation mode using an unequal pixel weighting of the one or more referenceable frames; andtwo or more pixel weight values representing the unequal pixel weighting. 2. The apparatus of claim 1, wherein the pixel weight values comprise weights in a range of −1.0 to +2.0. 3. The apparatus of claim 1, wherein the pixel weight values comprise at least one weight greater than +2.0. 4. A non-transitory computer-readable medium comprising instructions that when executed by one or more processors cause a decoder to: receive a bitstream comprising a sequence of predicted and bidirectional predicted frames each comprising pixel values arranged in picture areas; anddetermine at least one picture area within a bidirectional predicted frame using an interpolative motion vector prediction mode based on one or more motion vectors from two or more referenceable frames, wherein the at least one picture area is determined using an unequal weighting of pixel values corresponding to the two or more referenceable frames, and wherein the unequal weighting of the pixel values comprises weights received in the bitstream by the decoder. 5. The non-transitory computer-readable medium of claim 4, wherein the weighting of pixel values comprises weights in a range of −1.0 to +2.0. 6. The non-transitory computer-readable medium of claim 4, wherein the weighting of pixel values comprises a least one weight greater than +2.0. 7. The non-transitory computer-readable medium of claim 4, wherein the weighting of pixel values comprises a first weight that is less than zero and a second weight that is greater than +1.0.

이 특허에 인용된 특허 (133) 인용/피인용 타임라인 분석

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Demos, Gary A., Interpolation of video compression frames.
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Demos, Gary A., Interpolation of video compression frames.
상세보기
Demos, Gary A., Interpolation of video compression frames.
상세보기
Demos, Gary A., Interpolation of video compression frames.
상세보기
Demos, Gary A., Interpolation of video compression frames.
상세보기
Demos, Gary A., Interpolation of video compression frames.
상세보기
Demos, Gary A., Interpolation of video compression frames.
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Demos, Gary A., Interpolation of video compression frames.
상세보기
Demos, Gary A., Interpolation of video compression frames.
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Demos, Gary A., Interpolation of video compression frames.
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Demos, Gary A., Interpolation of video compression frames.
상세보기
Demos, Gary A., Interpolation of video compression frames.
상세보기
Demos, Gary A., Interpolation of video compression frames.
상세보기
Demos, Gary A., Interpolation of video compression frames.
상세보기
Demos, Gary A., Interpolation of video compression frames.
상세보기
Demos, Gary A., Interpolation of video compression frames.
상세보기
Demos, Gary A., Interpolation of video compression frames.
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Demos, Gary A., Interpolation of video compression frames.
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Demos, Gary A., Interpolation of video compression frames.
상세보기
Demos, Gary A., Interpolation of video compression frames.
상세보기
Demos, Gary A., Interpolation of video compression frames.
상세보기
Demos, Gary A., Interpolation of video compression frames.
상세보기
Demos, Gary A., Interpolation of video compression frames.
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Demos,Gary A., Interpolation of video compression frames.
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이 특허를 인용한 특허 (5) 인용/피인용 타임라인 분석

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[미국특허] Interpolation of video compression frames 원문보기

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[미국특허] Interpolation of video compression frames 원문보기

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