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A kind of motion information determination method and device thereof

A technology for determining motion information and methods, applied in the field of encoding and decoding, to achieve the effect of solving bit overhead, solving the transmission of a large number of motion vectors, and saving a large number of bits

Active Publication Date: 2022-07-01
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the current coding unit is divided into multiple sub-blocks, additional bit overhead will be generated

Method used

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  • A kind of motion information determination method and device thereof
  • A kind of motion information determination method and device thereof
  • A kind of motion information determination method and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Example 1: see Figure 5 As shown, it is a schematic flowchart of the motion information determination method in the embodiment of the present application, the method can be applied to the decoding end, and the method can include the following steps:

[0070] Step 501: Create a motion information prediction mode candidate list of the current image block; wherein the motion information prediction mode candidate list may include at least one motion information prediction mode.

[0071] The motion information prediction mode may include, but is not limited to: a first motion information prediction mode (eg, DC prediction mode) and / or a second motion information prediction mode (eg, angle prediction mode).

[0072] In one example, the first motion information prediction mode is used to indicate that at least two specified blocks are selected from the surrounding blocks of the current image block as matching blocks, and the motion information of the matching blocks is weighted...

Embodiment 2

[0086] Example 2: see Image 6 As shown, it is a schematic flowchart of the motion information determination method in the embodiment of the present application. The method can be applied to the encoding end, and the method can include the following steps:

[0087] Step 601 , creating a motion information prediction mode candidate list of the current image block; wherein the motion information prediction mode candidate list may include at least one motion information prediction mode.

[0088] The motion information prediction mode may include, but is not limited to, a first motion information prediction mode (eg, DC prediction mode) and / or a second motion information prediction mode (eg, angle prediction mode).

[0089] In one example, the first motion information prediction mode is used to indicate that at least two specified blocks are selected from the surrounding blocks of the current image block as matching blocks, and the motion information of the matching blocks is weig...

Embodiment 3

[0099] Example 3: see Figure 7 As shown, it is a schematic flowchart of a method for determining motion information, and the method includes:

[0100] Step 701, the encoding end creates a motion information prediction mode candidate list of the current image block; wherein, the motion information prediction mode candidate list may include at least one motion information prediction mode.

[0101] Step 702, the decoding end creates a motion information prediction mode candidate list of the current image block; wherein, the motion information prediction mode candidate list may include at least one motion information prediction mode.

[0102] The motion information prediction mode candidate list at the encoding end is the same as the motion information prediction mode candidate list at the decoding end, that is, the motion information prediction modes of the two are in exactly the same order.

[0103] Step 703: The encoder selects a motion information prediction mode from the mo...

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Abstract

The present application provides a motion information determination method and device thereof. The method includes: creating a motion information prediction mode candidate list of a current image block; wherein the motion information prediction mode candidate list includes at least one motion information prediction mode; Select a motion information prediction mode in the motion information prediction mode candidate list, and determine the selected motion information prediction mode as the target motion information prediction mode of the current image block; determine the current image block according to the target motion information prediction mode. Target motion information. Through the technical solution of the present application, the bit overhead caused by sub-block division is effectively solved, thereby improving the coding performance and saving a large amount of bits.

Description

technical field [0001] The present application relates to the technical field of coding and decoding, and in particular, to a motion information determination method and device thereof. Background technique [0002] In order to save space, video images are transmitted after being encoded, and a complete video encoding method may include processes such as prediction, transformation, quantization, entropy encoding, and filtering. Among them, predictive coding includes intra-frame coding and inter-frame coding. Inter-frame coding uses the correlation in the video temporal domain to predict the pixels of the current image using pixels adjacent to the coded image, so as to effectively remove the video temporal redundancy. [0003] In inter-frame coding, a motion vector (Motion Vector, MV) may be 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. For example...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/103H04N19/176
CPCH04N19/103H04N19/176H04N19/159
Inventor 方树清
Owner HANGZHOU HIKVISION DIGITAL TECH