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Method and device for encoding and decoding an image

A technology for encoding images and encoding, which is applied in the field of image encoding and decoding, and can solve problems such as system performance degradation, CBR encoding not allowed, poor compression rate, etc.

Inactive Publication Date: 2014-02-26
NXP USA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since e.g. CBR encoding does not allow adjustments to be made within a frame to account for video content, it provides a worse compression rate than other methods
This results in reduced system performance

Method used

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  • Method and device for encoding and decoding an image
  • Method and device for encoding and decoding an image
  • Method and device for encoding and decoding an image

Examples

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Embodiment Construction

[0026] Since the described embodiments of the invention may largely be implemented using electronic components and circuits well known to those skilled in the art, no detail will be explained in any degree greater than that described above as deemed necessary. The understanding and recognition of the basic concepts of the present invention are intended not to confuse or deviate from the teachings of the present invention.

[0027] figure 1 An example of a multimedia device 100 comprising a processing unit 102 connected to an interconnect 104 is schematically shown. Interconnect 104 provides connectivity between components of multimedia device 100 , including internal shared memory 106 , wavelet compressor / decompressor 108 , and peripherals 110 connected through external interface 111 . Interconnect 104 may comprise any suitable interconnect technology or standard, and the invention is not limited in this respect. Interconnect 104 may also provide a connection to external mem...

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Abstract

A method (300) for encoding an image. The method comprises: dividing the image into a plurality of variable sized blocks (302), encoding each sub-block using variable bit rate encoding (304), storing the encoded sub-blocks (306), generating a marker matrix (308), and storing the marker matrix for use in decoding the image (310).

Description

technical field [0001] The present invention relates generally to methods and apparatus for encoding and decoding images, and more particularly to methods and apparatus for encoding and decoding images using compressed frame buffers. Background technique [0002] In recent years, there has been an increasing demand for high-resolution video in televisions, computers, and other video-capable devices, and can now also be felt in the portable device market. As relatively high-definition screens become more common in modern multimedia devices such as tablets, PCs and smartphones, high-resolution video quality has become a key competitive differentiator. [0003] Improvements in video quality result in smoother video, improved color, fewer image resizing, compression or other image processing artifacts, and various other benefits. These benefits improve the user experience in ways that improve more than a little on the visible details. [0004] State-of-the-art video processing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/423H04N19/46
CPCH03M7/42H03M7/607H04N19/00484H03M7/3064H04N19/00545H04N19/46H04N19/423
Inventor 什洛莫·比尔-金戈尔德奥费尔·纳曼迈克尔·扎鲁宾斯基
Owner NXP USA INC
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