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A codec method, device and equipment thereof

A codec method and relative position technology, applied in the field of devices and equipment, and codec methods, can solve the problems of poor acquisition of inter-frame prediction, poor prediction effect, and large coding residual error, so as to improve the accuracy of prediction performance, improved prediction performance, and improved encoding performance

Active Publication Date: 2022-04-26
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when one of the objects has a large deformation, the inter-frame prediction of the region cannot obtain its predicted value well, which directly leads to poor prediction results, large coding residuals, and poor coding performance.

Method used

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  • A codec method, device and equipment thereof
  • A codec method, device and equipment thereof
  • A codec method, device and equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] Embodiment 1: see Figure 4 As shown, it is a schematic flow chart of the encoding and decoding method in the embodiment of the present application. The encoding and decoding method can be applied to the decoding end or the encoding end. The encoding and decoding method can include the following steps:

[0085] Step 401, when it is determined that inter-frame and intra-frame joint prediction is started for the current block, the weighted attribute of the current block is obtained; the weighted attribute is used to indicate the division information of the current block, and the relative relationship between the intra-frame area and the inter-frame area included in the current block Location.

[0086] In step 401, the decoding end or the encoding end needs to determine whether to enable inter-intra prediction for the current block. If inter-frame and intra-frame joint prediction is enabled for the current block, the codec method of the embodiment of the present applicati...

Embodiment 2

[0115] Embodiment 2: The encoding end and the decoding end pre-agreed on the binding relationship between the weighting attribute and the intra-frame prediction mode, and each weighting attribute corresponds to only one intra-frame prediction mode. Exemplarily, by binding an appropriate intra-frame prediction mode for each weighted attribute, when the predicted value of the intra-frame area in the current block is obtained according to the intra-frame prediction mode bound to the weighted attribute, reliable prediction is obtained value. For example, the binding relationship between the weighted attribute and the intra-frame prediction mode is pre-configured at the encoding end, and the binding relationship between the weighted attribute and the intra-frame prediction mode is configured at the decoding end, and the binding relationship between the two is the same.

[0116] For example, the binding relationship between weighted attribute 1 and intra-frame prediction mode 1, the...

Embodiment 3

[0137] Embodiment 3: The decoding end and the encoding end agree in advance on the binding relationship between the weighting attribute and the intra-frame prediction mode, and each weighting attribute corresponds to only one intra-frame prediction mode. For example, the binding relationship between the weighted attribute and the intra-frame prediction mode is pre-configured at the decoding end, and the binding relationship between the weighted attribute and the intra-frame prediction mode is configured at the encoding end, and the binding relationship between the two is the same.

[0138] For example, the binding relationship between weighting attribute 1 and intra prediction mode 1, the binding relationship between weighting attribute 2 and intra prediction mode 2, and the binding relationship between weighting attribute 3 and intra prediction mode 3 are agreed in advance. Weighting attribute 1 is used to indicate that the current block is divided according to upper left-lowe...

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Abstract

The present application provides a coding and decoding method, device and equipment thereof, the method comprising: when determining to enable inter-intra-frame joint prediction for the current block, acquiring the weighted attribute of the current block; the weighted attribute is used to indicate the division of the current block Information, the relative position of the intra-frame area and the inter-frame area included in the current block; according to the weighted attribute, obtain the target intra-frame prediction mode bound to the weighted attribute; obtain the target inter-frame prediction mode of the current block; according to the target frame The intra prediction mode and the target inter prediction mode obtain the predicted value of the current block. The predicted value of the current block includes at least the predicted value of the intra region and the predicted value of the inter region. The predicted value of the intra region is based on the target frame The intra prediction mode is determined, and the prediction value of the inter frame area is determined according to the target inter frame prediction mode. Through the technical solution of the present application, prediction performance and coding performance are improved.

Description

technical field [0001] The present application relates to the technical field of encoding and decoding, and in particular, relates to an encoding and decoding method, device and equipment thereof. Background technique [0002] In order to achieve the purpose of saving space, video images are transmitted after being coded, and a complete video coding method may include processes such as prediction, transformation, quantization, entropy coding, and filtering. Wherein, predictive coding may include intra-frame coding and inter-frame coding. Furthermore, inter-frame coding utilizes the correlation in the temporal domain of the video to predict the current pixel by using pixels adjacent to the coded image, so as to achieve the purpose of effectively removing redundancy in the temporal domain of the video. In addition, intra-frame coding refers to using the correlation of the video spatial domain to use the pixels of the coded block of the current frame image to predict the curre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/105H04N19/107H04N19/503H04N19/593H04N19/147H04N19/184H04N19/176
CPCH04N19/105H04N19/176H04N19/159H04N19/109H04N19/11H04N19/119
Inventor 孙煜程
Owner HANGZHOU HIKVISION DIGITAL TECH