Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Self-adapted video processing device and method

A technology of image processing and multiplication, applied in the direction of color signal processing circuit, luminance and chrominance signal processing circuit, etc., which can solve the problems of cross-color, not bright enough color, cross-color, etc.

Inactive Publication Date: 2008-02-20
NOVATEK MICROELECTRONICS CORP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a narrowbandwidth low-pass filter is used, it is suitable for processing dynamic images; but when processing static images, there will be a problem of color transition, and the color will not be sharp enough because the color is large Part of the high frequency part is filtered out
On the other hand, if a wide bandwidth low-pass filter is used, it is suitable for processing still images, but when processing moving images, there will be problems of cross color

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
  • Self-adapted video processing device and method
  • Self-adapted video processing device and method
  • Self-adapted video processing device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] In order to properly process still images and dynamic images, an embodiment of the present invention discloses an adaptive image processing device, which includes at least two low-pass filters with different bandwidths. When processing still images, the signal processed by the wide-band low-pass filter will have a larger weighting value. On the other hand, when processing dynamic images, the signal processed by the narrow-band low-pass filter will take a larger weighting value. In this way, when processing static images, the problem of color transition can be reduced, and the color can also remain bright; when processing moving images, the problem of cross-color can also be reduced.

[0030] FIG. 1 is a circuit block diagram of a self-adaptive image processing device 10 according to a preferred embodiment of the present invention. Note that Figure 1 is used in the YUV color space. In FIG. 1, the input signal CS represents a composite video signal, and the chrominance ...

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 utility model relates to a device and a method for self-adaptive image processing, evaluating the dynamic change degree of a video composite signal. A narrow frequency and wide frequency low-pass is used to filter the color signal of the video composite signal to generate a narrow frequency or wide frequency filtered signal. The narrow frequency or wide frequency filtered signal is weighted according to the evaluated dynamic change degree to decide the retention of high frequency component in the color signal. Much high frequency component is retained in processing the static image to reduce color intermediation and to keep the color floridity of the image; much high frequency component is filtered in processing the dynamic image to reduce color crossing.

Description

technical field [0001] The present invention relates to an adaptive image processing device and method, in particular to an adaptive image processing device and method that can determine how much high-frequency part of the image to retain according to the dynamic degree of the image. Background technique [0002] Watching TV has become one of the leisure ways of modern people. Generally speaking, the video composite signal (also referred to as video composite signal) received by the TV will be different due to the different definition of the color space (color space). For example, when in the YUV color space, the video composite signal will include a luminance component (Y) and a chrominance (color information) component (U and V) (also known as a color information component); the video composite signal can be expressed as Y+ Usin(ωt)+Vcos(ωt). When in the YCbCr color space, the composite video signal includes a luminance component (Y) and a chrominance component (Cb and C...

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
IPC IPC(8): H04N9/64H04N9/77
Inventor 陈玫霏黄泉龙
Owner NOVATEK MICROELECTRONICS CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com