Unlock instant, AI-driven research and patent intelligence for your innovation.

Layered coding and decoding method and device

A coding method and entropy coding technology, applied in the field of layered codec and device, can solve the problem of large image distortion

Pending Publication Date: 2022-07-29
HUAWEI TECH CO LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the different color characteristics of the image content, the code rate of the YUV component is fixed, which will cause large distortion of the encoded image

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Layered coding and decoding method and device
  • Layered coding and decoding method and device
  • Layered coding and decoding method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 7

[0216] In the embodiment 7A, the UV components are combined and combined, and the three components of Y, U, and V are processed separately in 7D, or combined and combined, for example, two components of Y, UV, or other combinations of Y, U, and V can be combined. .

[0217] Figure 8A and 8B A specific example is given. The overall block diagram of the technical solution of this embodiment is as follows Figure 8A shown, wherein, the quality factor of the Y component and the quality factor of the UV component are input to the rate allocation control module, which outputs the control vector q yi , control vector q uvi It acts on the Y component feature map output by the Y component processing module and the UV component feature map output by the UV component processing module respectively, so as to realize the code rate allocation of the YUV component.

[0218] The decoding end inputs the quality response module through the quality factor of the Y component and the quality...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a layered coding and decoding method and device. Relates to the technical field of video or image compression based on artificial intelligence (AI). The coding method comprises the steps that a control signal of a first signal component of a video signal acts on a first feature map of the first signal component, a second feature map of the first signal component is obtained, and the control signal of the first signal component is obtained through learning; a control signal of a second signal component of the video signal acts on the first feature map of the second signal component, a second feature map of the second signal component is obtained, and the control signal of the second signal component is obtained through learning; and obtaining a code stream of the video signal according to the second feature map of the first signal component and the second feature map of the second signal component. The method and the device can adapt to image contents with different color characteristics.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of artificial intelligence (AI)-based video or image compression, and in particular, to a method and apparatus for layered encoding and decoding. Background technique [0002] Video compression codec technology has a wide range of applications in multimedia services, broadcasting, video communication and storage, such as broadcast digital TV, video transmission over the Internet and mobile networks, real-time conversational applications such as video chat and video conferencing, DVD and Blu-ray Security applications for optical discs, video content capture and editing systems, and camcorders. [0003] The large amount of video data that needs to be described even in the case of short films can cause difficulties when the data is to be sent or otherwise transmitted over a network with limited bandwidth capacity. Therefore, video data is usually compressed before being transmitted in mod...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/30H04N19/91H04N19/186H04N19/182G06N3/08G06N3/04
CPCH04N19/30H04N19/91H04N19/186H04N19/182G06N3/04G06N3/08G06N3/0464G06N3/0455H04N19/124H04N19/146H04N19/172H04N19/70H04N19/184H04N19/42H04N19/13H04N19/136H04N19/154H04N19/103H04N19/44
Inventor 毛珏杨海涛王晶崔泽
Owner HUAWEI TECH CO LTD