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Method and apparatus for intra prediction for non-square blocks in video compression

A non-square, intra-frame prediction mode technology, applied in digital video signal modification, image communication, electrical components, etc.

Pending Publication Date: 2020-12-04
TENCENT AMERICA LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, intra prediction can be performed from above or from the left, so it is not optimal to always use the average of the block's width and height as the block size

Method used

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  • Method and apparatus for intra prediction for non-square blocks in video compression
  • Method and apparatus for intra prediction for non-square blocks in video compression
  • Method and apparatus for intra prediction for non-square blocks in video compression

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Embodiment Construction

[0033] figure 1 is a simplified block diagram of a communication system (~~a00) according to an embodiment disclosed herein. A communication system (100) includes a plurality of terminal devices that can communicate with each other via, for example, a network (150). By way of example, a communication system (100) includes a first pair of end devices (110) and (120) interconnected by a network (150). exist figure 1 In an embodiment of the present invention, the first terminal device performs unidirectional data transfer to (110) and (120). For example, a terminal device (110) may encode video data (eg, a stream of video pictures captured by the terminal device (110)) for transmission to another terminal device (120) over the network (150). The encoded video data is transmitted in one or more encoded video streams. The terminal device (120) may receive encoded video data from the network (150), decode the encoded video data to restore the video data, and display video pictur...

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PUM

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Abstract

A method for video decoding includes the steps: determining, for a current block that is a non-square block, whether an angular intra prediction mode for the current block is a wide angle mode that isin a direction outside of a range of directions that spans a bottom left diagonal direction and top right diagonal direction of the current block; in response to determining that the angular intra prediction mode is the wide angle mode, determining whether a condition to apply an intra smoothing filter to blocks neighboring the current block is satisfied; in response to determining that the condition is satisfied, applying the intra smoothing filter to the blocks neighboring the current block; and performing intra prediction based on the filtered blocks to obtain a characteristic value for the current block.

Description

[0001] Incorporate by reference [0002] This application claims U.S. Patent Application No. 16 / 147,533, entitled "METHOD AND APPARATUS FOR INTRAPREDICTION FOR NON-SQUARE BLOCKS IN VIDEO COMPRESSION," filed September 28, 2018 (which claims Priority benefit of US Provisional Application No. 62 / 693,046, entitled "INTRA PREDICTION FOR SQUARE AND NON-SQUARE BLOCKS IN VIDEO COMPRESSION," the entire contents of which are incorporated herein by reference. technical field [0003] This disclosure describes embodiments generally related to video encoding. Background technique [0004] The background description provided herein is for the purpose of generally presenting the disclosure. To the extent of the work described in this Background section, the work of the presently named inventors and aspects of this description that would not otherwise qualify as prior art at the time of filing are neither expressly nor impliedly admitted to be present in the present invention. have techno...

Claims

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Application Information

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IPC IPC(8): H04N19/103H04N19/159H04N19/117H04N19/189H04N19/176
CPCH04N19/11H04N19/159H04N19/117H04N19/176H04N19/189H04N19/593H04N19/119H04N19/86H04N19/103
Inventor 赵亮赵欣李翔刘杉
Owner TENCENT AMERICA LLC