Decoding and coding method, device and equipment

A decoding method and preconfigured technology, applied in the field of codec, to save a lot of bits, solve the problem of transmitting a large amount of motion information, and improve the encoding performance

Active Publication Date: 2021-03-26
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the current block is divided into multiple sub-blocks, additional bit overhead will be generated

Method used

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  • Decoding and coding method, device and equipment
  • Decoding and coding method, device and equipment
  • Decoding and coding method, device and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Embodiment 1: see Figure 4 As shown, it is a schematic flow diagram of the decoding method, which can be applied to the decoding end, and the method includes:

[0080] Step 401, constructing a motion information prediction mode candidate list of the current block.

[0081] Exemplarily, when constructing the motion information prediction mode candidate list of the current block, for any motion information angle prediction mode of the current block, based on the pre-configured angle of the motion information angle prediction mode, the current block is selected from the surrounding blocks A plurality of surrounding matching blocks directed by a pre-configured angle, the plurality of surrounding matching blocks at least include a first surrounding matching block and a second surrounding matching block to be traversed; for the first surrounding matching block and the second surrounding matching block to be traversed , if both the first surrounding matching block and the se...

Embodiment 2

[0127] Example 2: see Figure 6 As shown, it is a schematic flow chart of the encoding method, which can be applied to the encoding end, and the method includes:

[0128] Step 601, constructing a motion information prediction mode candidate list of the current block.

[0129] Exemplarily, when constructing the motion information prediction mode candidate list of the current block, for any motion information angle prediction mode of the current block, based on the pre-configured angle of the motion information angle prediction mode, the current block is selected from the surrounding blocks A plurality of surrounding matching blocks directed by a pre-configured angle, the plurality of surrounding matching blocks at least include a first surrounding matching block and a second surrounding matching block to be traversed; for the first surrounding matching block and the second surrounding matching block to be traversed , if both the first surrounding matching block and the second ...

Embodiment 3

[0152] Embodiment 3: based on the same application concept as the above-mentioned method, see Figure 7 As shown, it is a schematic flow chart of the encoding method proposed in the embodiment of the present application. This method can be applied to the encoding end, and the method can include:

[0153] In step 701, the encoding end constructs a motion information prediction mode candidate list of the current block, and the motion information prediction mode candidate list may include at least one motion information angle prediction mode. Of course, the motion information prediction mode candidate list may also include other types of motion information prediction modes (that is, not the motion information angle prediction mode), which is not limited.

[0154] Exemplarily, a motion information prediction mode candidate list can be constructed for the current block, that is, all sub-regions in the current block can correspond to the same motion information prediction mode candi...

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Abstract

The invention provides a decoding and encoding method, device and equipment. The method comprises the following steps: constructing a motion information prediction mode candidate list of a current block; selecting a target motion information prediction mode of the current block from the motion information prediction mode candidate list; if the target motion information prediction mode is a targetmotion information angle prediction mode, filling unavailable motion information in peripheral blocks of the current block; determining motion information of a current block according to motion information of a plurality of peripheral matching blocks pointed by a pre-configured angle of the target motion information angle prediction mode; and determining a prediction value of the current block according to the motion information of the current block. Through the scheme of the invention, the coding performance can be improved.

Description

technical field [0001] The present application relates to the technical field of encoding and decoding, and in particular relates to a decoding and encoding 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. Predictive coding includes intra-frame coding and inter-frame coding. Inter-frame coding uses the correlation in the time domain of the video to predict the pixels of the current image using the pixels of the adjacent coded image, so as to effectively remove the redundancy of the video time domain. In inter-frame coding, a motion vector is used to represent the relative displacement between the current image block of the current frame video image and the reference image block of the reference frame video image. [0003] In...

Claims

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Application Information

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IPC IPC(8): H04N19/103H04N19/176
CPCH04N19/103H04N19/176
Inventor 方树清陈方栋王莉
Owner HANGZHOU HIKVISION DIGITAL TECH
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