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Color gamut scalable video coding device and method for the phase alignment of luma and chroma using interpolation

A video coding and equipment technology, applied in high-definition color TV, digital video signal modification, color signal processing circuit, etc., can solve problems such as inability to align, affect 3DLUT, and affect 3DLUT interpolation accuracy

Active Publication Date: 2016-08-03
VID SCALE INC
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AI Technical Summary

Problems solved by technology

[0003] The phase of the luma and chroma sample positions of the input video stream may not be aligned
This misalignment of the luma and chroma sample positions affects the accuracy of the 3DLUT interpolation and thus the estimated 3DLUT

Method used

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  • Color gamut scalable video coding device and method for the phase alignment of luma and chroma using interpolation
  • Color gamut scalable video coding device and method for the phase alignment of luma and chroma using interpolation
  • Color gamut scalable video coding device and method for the phase alignment of luma and chroma using interpolation

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Embodiment Construction

[0029] Digital video compression techniques for efficient digital video communication, distribution and consumption such as H.261, MPEG-1, MPEG-2, H.263, MPEG-4 Part 2 and H.264 / MPEG-4 Part 10 AVC .

[0030]An increasing number of video applications such as IPTV, video chat, mobile video and streaming video can be deployed in heterogeneous environments compared to traditional digital video services such as TV signals sent via satellite, cable and terrestrial transmission channels . For example, a video application may provide different sized cells for video streams in the network, and so on. Heterogeneity can exist in the client as well as in the network. For example, on the client side, an N-screen solution for consuming video content on devices with variable screen sizes and display capabilities (including smartphones, tablets, PCs, and TVs, etc.) may be provided and / or used. On the network side, video can be transmitted over the Internet, WiFi networks, mobile (3G and 4G...

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Abstract

The invention discloses a color gamut scalable video coding device and a method for the phase alignment of luma and chroma using interpolation. According to the invention, a video coding device and a method are used for receiving a picture associated with a first color space, wherein the picture comprises a first component at a first sampling location (CO), a second component at a second sampling location (LO) and the second component at a third sampling location (L4). A first interpolation filter is applied to the second component at the second sampling location (LO) and the second component at the third sampling location (L4) to determine the second component at the first sampling location (L(C0)). The second component at the first sampling location (L(C0)) may be associated with the first color space. A color conversion model is applied to the first component at the first sampling location (CO) and to the second component at the first sampling location (L(C0) ) to translate the first component at the first sampling location to a second color space.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application No. 61 / 915,892, filed December 13, 2013, the entire contents of which are hereby incorporated by reference. Background technique [0003] The phases of luma and chroma sample positions of an input video stream may not be aligned. This misalignment of the luma and chroma sample locations affects the accuracy of the 3DLUT interpolation and thus the estimated 3DLUT. Contents of the invention [0004] Systems and / or methods for estimating color conversion components. A video encoding apparatus may receive a picture associated with a first color space. The picture may include a first component at a first sampling position, a second component at a second sampling position, and a second component at a third sampling position. The video encoding apparatus may apply the first interpolation filter to the second component at the second sampling position and the ...

Claims

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Application Information

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IPC IPC(8): H04N9/64H04N19/80H04N19/59
CPCH04N1/64H04N19/30H04N19/186H04N19/80H04N19/85H04N19/59H04N19/597H04N13/139H04N13/15H04N13/161H04N9/67H04N11/24H04N9/64
Inventor 叶琰董洁贺玉文
Owner VID SCALE INC
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