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

Field deinterlacing method based on bilateral filtering multidirectional interpolation

An in-field deinterlacing and bilateral filtering technology, applied in the field of video processing, can solve problems such as image shaking, affecting the accuracy of interpolation results, and seldom considering the distance relationship between adjacent pixels, so as to achieve less hardware overhead, less storage overhead, and interpolation The results are accurate

Active Publication Date: 2017-01-04
TIANJIN UNIV
View PDF10 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of algorithm can provide better de-interlacing effect in some cases with large motion range, but for some cases with rich details and many narrow edges, the de-interlacing effect is not very good, which will cause image shaking
And most of these algorithms only consider the similarity of pixel values ​​between adjacent pixels, and rarely consider the distance relationship between adjacent pixels, which will affect the accuracy of interpolation results to a certain extent

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
  • Field deinterlacing method based on bilateral filtering multidirectional interpolation
  • Field deinterlacing method based on bilateral filtering multidirectional interpolation
  • Field deinterlacing method based on bilateral filtering multidirectional interpolation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0046] 1. Input the interlaced scanning video sequence, and the fields to be interpolated are selected sequentially from the start field to the end field according to the time sequence. For each pixel to be interpolated (i, j) in the field, select a total of 10 adjacent original pixels, namely (i-1, j-2), (i-1, j-1) , (i-1, j), (i-1, j+1), (i-1, j+2), (i+1, j-2), (i+1, j-1), ( i+1, j), (i+1, j+1), (i+1, j+2).

[0047] 2. Use the 10 adjacent original pixels and the 4-tap Wiener filter interpolation algorithm (the schematic diagram is as follows figure 2 shown) in and interpolate at. The specific interpolation method is as follows:

[0048] I ( i - 1 , j - 1 2 ) = ( - 1 8 ) × I ( i - 1 , j ...

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

Disclosed is a field deinterlacing method based on bilateral filtering multidirectional interpolation. The method has the following steps: inputting an interlacing scanning video sequence; for the condition when adjacent non-original pixel points are used, two closest adjacent non-original pixels in the direction of a theta angle are solved by use of an image interpolation algorithm; closest adjacent original pixel points and the adjacent non-original pixels in the direction of the theta angle are collectively called closest adjacent pixel points, and a pixel value similarity relation between the two closest adjacent pixel points is represented by use of a weight function comprising a Gauss nucleus; a distance closeness relation between the two closest adjacent pixel points is represented by use of a weight function comprising a Gauss nucleus; through combination with the pixel value similarity relation between the two closest adjacent pixel points and the distance closeness relation between the two closest adjacent pixel points, a weight value is calculated; and through combination with the weight value and a pixel value of each of the two adjacent pixel points distanced closest to a to-be-interpolated pixel point, a final interpolation result is calculated. According to the invention, the interpolation result is more accurate.

Description

technical field [0001] The invention relates to a video processing technology. In particular, it relates to an intra-field de-interlacing method based on bilateral filtering and multi-directional interpolation. Background technique [0002] Based on the consideration of the compatibility of traditional analog TV and the cost saving of transmission bandwidth, most radio and television systems at this stage use interlaced scanning formats in the transmission of television signals, including NTSC, PAL, SECAM and other radio and television systems. However, interlacing can cause visual artifacts such as edge flicker, jaggies, and field-to-field aliasing. The current mainstream digital TV mainly supports progressive scanning, so de-interlacing operation is required. The essence of deinterlacing is to interpolate missing pixels and remove visual defects caused by interlacing. [0003] At present, predecessors have proposed a variety of deinterlacing algorithms, and these deinte...

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): H04N7/01H04N5/14
CPCH04N5/142H04N7/012
Inventor 张涛陈有志
Owner TIANJIN UNIV
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