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

Video signal processor

An image signal and processing device technology, applied in the field of image signal processing devices, can solve problems such as easy generation of afterimages, and achieve the effects of suppressing the increase in circuit scale and cost

Inactive Publication Date: 2012-07-11
JVC KENWOOD CORP
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Afterimages are easily generated by displaying moving images by an image display device using a liquid crystal screen

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
  • Video signal processor
  • Video signal processor
  • Video signal processor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Hereinafter, the video signal processing device of the present invention will be described with reference to the drawings. exist figure 1 , each pixel data of the video signal Sin having a frame frequency of 60 Hz is sequentially input to the frame memory 1 , the motion vector detection unit 2 , the interpolation unit 31 , and the time-series transformation memory 4 . Pre-implementation of the video signal Sin Figure 5 Gamma correction shown. The frame memory 1 delays the input pixel data by one frame and outputs it. Let the current frame of the input video signal Sin be F0, and let the frame preceding the current frame output from the frame memory 1 be F1.

[0028] The motion vector detection unit 2 detects a motion vector for generating interpolation pixel data of an interpolation frame interpolated between the current frame F0 and frame F1 using, for example, a matching method using pixel data of the current frame F0 and frame F1 . use figure 2 An example of ...

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

In the provided video signal processing device, a motion vector detection unit (2) detects needed motion vectors when generating interpolation pixel data. Data retention / selection units (311, 312) select pixel data from a real frame used for generating interpolation pixel data. An averaging unit (318) generates interpolation pixel data. A reverse gamma-correction unit is disposed between the data retention / selection units (311, 312) and the averaging unit (318), and a gamma-correction unit (319) is disposed after the averaging unit (318).

Description

technical field [0001] The present invention relates to an image signal processing device that interpolates and interpolates frames between real frames of an image signal to increase the number of frames, thereby changing the frame rate (frame frequency), and particularly relates to processing that implements both inverse gamma correction and gamma correction, A video signal processing device that converts the frame rate. Background technique [0002] Displaying moving images by an image display device using a liquid crystal panel tends to generate afterimages. Therefore, in order to reduce afterimages, the number of frames is increased by interpolating frames between real frames of the video signal. For example, the frame rate of the vertical frequency of 60 Hz is converted to a vertical frequency of twice 120 Hz or higher for image display. In a video signal processing device that performs frame rate conversion, a motion vector of an image is detected, each interpolation ...

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): H04N5/202H04N7/01
CPCH04N7/0127G06T3/40H04N5/145H04N7/014G06T1/00H04N5/202G09G3/36
Inventor 小泉真季相羽英树宍户智之
Owner JVC KENWOOD CORP