AVS3 sampling point adaptive compensation method and device, electronic equipment and storage medium
A technology of sample point self-adaptation and compensation method, which is applied in the field of video processing, can solve problems such as ripple phenomenon and affect video quality, and achieve the effect of facilitating parallel processing and improving parallel processing efficiency
Pending Publication Date: 2021-10-08
杭州博雅鸿图视频技术有限公司
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In the AVS3 standard application scenario, the block-based discrete cosine transform (DCT) transform quantization for strong edges in the image, due to the quantization distortion of high-frequency AC coefficients, will produce ripples around the edges after decoding. This distortion is called Ringing effect, seriously affecting video quality
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[0048] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0049] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as commonly understood by those of ordinary skill in the art to which this application belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be understood to have m...
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The invention discloses an AVS3 sampling point adaptive compensation method and device, electronic equipment and a storage medium. The method comprises the following steps: in an AVS3 standard, executing a pixel offset operation on each maximum coding unit of a video image to obtain a processing unit for filtering calculation; counting pixel information of the processing unit; based on the pixel information obtained through statistics, carrying out the sampling point self-adaptive compensation mode decision, and determining the sampling point self-adaptive compensation parameters; and carrying out filtering calculation on the processing unit based on the sampling point self-adaptive compensation parameter. According to the sampling point adaptive compensation method of the AVS3 provided by the embodiment of the invention, the pixel offset operation is performed on each maximum coding unit of the video image, so the data dependency relationship among the maximum coding units is removed, parallel processing is facilitated, and the parallel processing efficiency is improved.
Description
technical field [0001] The present application relates to the technical field of video processing, in particular to an AVS3 sample point adaptive compensation method, device, electronic equipment and storage medium. Background technique [0002] The AVS3 video coding standard belongs to the third generation AVS standard. Digital audio and video codec standard (AVS) is an information source coding standard with independent intellectual property rights in China. AVS3 still uses the hybrid coding framework as a whole, and uses various coding and decoding technologies such as intra prediction, inter prediction, transform quantization, loop filtering and entropy coding. In the AVS3 standard application scenario, the block-based discrete cosine transform (DCT) transform quantization for strong edges in the image, due to the quantization distortion of high-frequency AC coefficients, will produce ripples around the edges after decoding. This distortion is called The ringing effect...
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Login to View More IPC IPC(8): H04N19/182H04N19/43H04N19/567H04N19/615
CPCH04N19/182H04N19/43H04N19/615H04N19/567
Inventor 向国庆赵飞张鹏房善华宋磊贾惠柱
Owner 杭州博雅鸿图视频技术有限公司