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

Depth map encoding compression method for 3DTV and FTV system

A technology of depth map coding and compression method, which is applied in the field of stereo and multi-view video signal processing, and can solve the problems of increasing coding complexity and reducing depth map coding speed.

Inactive Publication Date: 2009-02-25
上海贵知知识产权服务有限公司
View PDF0 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above technical problems, relevant researchers have proposed many depth map coding and compression methods applied to 3DTV and FTV systems, such as the compression method of depth map sequence. method to compress it, because this method not only utilizes the spatial correlation of the depth map sequence, but also utilizes the time correlation of the depth map sequence, so that the method obtains better compression performance and reduces the pressure on the transmission bandwidth. However, this also increases the coding complexity and greatly reduces the coding speed of the depth map.

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
  • Depth map encoding compression method for 3DTV and FTV system
  • Depth map encoding compression method for 3DTV and FTV system
  • Depth map encoding compression method for 3DTV and FTV system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] A method for coding and compressing depth maps applied to 3DTV and FTV systems. In 3DTV and FTV systems, the input for virtual viewpoint rendering includes viewpoint images and depth maps corresponding to the viewpoint images. The viewpoint images are represented by I and the depth maps by D. . Using the edge information of the depth map D and the motion information of the viewpoint image I, the depth map D is divided into a static non-edge area, a non-edge area inside a moving object, and an edge area; Coding, and using the macroblock coding mode and motion vector determined after the coding of the viewpoint image I in the coding process of the depth map D, combined with the above three area classifications of the depth map D, the fast coding of the depth map D is realized.

[0026] Here, the viewpoint image I can be a color viewpoint...

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 invention discloses a depth map coding compression method applied to 3DTV and FTV systems. The depth map is divided into an immobile non-edge region, a non-edge region and an edge region in a moving object according to the edge information of the depth map and the motion information of viewpoint images, the depth map is coded after the coding of the viewpoint images is completed, and the searching range of a macro block coding mode in the immobile non-edge region and the non-edge region in the moving object can be reduced on the premise of the ensured coding quality of the depth map coding process by using the macro block coding mode and a motion vector determined after the viewpoint image coding in combination with the three regions of the depth map, thereby reducing the depth map coding complexity and improving the depth map coding speed.

Description

technical field [0001] The invention relates to a processing technology of stereoscopic and multi-viewpoint video signals, in particular to a depth map encoding and compression method applied to 3DTV and FTV systems. Background technique [0002] 3DTV (three Dimensional Television) and FTV (Free-viewpoint Television) are three-dimensional video systems with advanced visual media modes, including visual functions that traditional two-dimensional video systems do not have. 3DTV can better reflect the depth information of the scene, while FTV can well satisfy users to select and operate audio-visual objects from any angle. The Joint Video Experts Group (JVT, Joint Video Team) organization proposed the MVD (multi-view video plus depth) structure, which uses N-viewpoint video combined with N-viewpoint depth information to express the three-dimensional information of the scene to support user-oriented virtual reality. A 3D video system for viewpoint rendering. In the MVD structu...

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): H04N13/00H04N7/26G06T7/00H04N19/176H04N19/55H04N19/567
Inventor 蒋刚毅郁梅朱波
Owner 上海贵知知识产权服务有限公司
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