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

An image coding method and device

An image coding and coding technology, applied in image communication, digital video signal modification, electrical components, etc., can solve the problems of low compression efficiency and time-consuming, so as to improve coding efficiency, shorten coding time, and improve picture compression efficiency. Effect

Active Publication Date: 2022-01-28
阿里宋汉信息技术有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to some aspects of the JPEG2000 algorithm, the compression process, especially the lossless compression process, takes a long time and the compression efficiency is low

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
  • An image coding method and device
  • An image coding method and device
  • An image coding method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] In order to enable those in the technical neighborhood to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0037] The application is applicable to numerous general purpose or special purpose computing device environments or configurations. For example: personal computer, server computer, handheld or portable device, tablet type device, multiprocessor device, distributed computing environment including any of the above devices or devices, et...

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 embodiment of the present application discloses an image coding method and device. The method includes: obtaining the value of the coefficient bit to be encoded in the bit plane and the importance status information; when the value of the coefficient bit is an effective value and the importance status information is an unimportant state, the The importance state information is updated to an important state; a message that the importance state information of the coefficient bit is changed from an unimportant state to an important state is sent to the neighboring coefficient bits of the coefficient bit. By using the embodiment of the present application, the coding efficiency of T1 layer coding in EBCOT can be improved, and the picture compression efficiency of JPEG2000 can be improved.

Description

[0001] technology neighborhood [0002] The present application relates to the field of image compression technology, in particular to an image encoding method and device. Background technique [0003] With the rapid development of multimedia technology and network, people put forward higher requirements on the quality, size and application of digital images, hoping to store and transmit high-quality images with limited space and bandwidth resources. This requires image compression technology not only to have good compression efficiency, but also to ensure that the image can restore the high quality of the original image after decompression. [0004] In some application neighborhoods, lossless compression of images is required. Especially in the field of medicine, modern medical technology has widely penetrated into all aspects of medicine, and computer and information technology have become the key factors to reduce costs, improve efficiency and provide high-quality care fo...

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 Patents(China)
IPC IPC(8): H04N19/124H04N19/146H04N19/63
CPCH04N19/124H04N19/146H04N19/63
Inventor 赵炜
Owner 阿里宋汉信息技术有限公司