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

Target tracking method and device based on video

A target tracking and video technology, which is applied in the field of target tracking in video based on multi-cue fusion, can solve the problems of unstable tracking and cannot effectively handle multi-peaks, and achieve the effect of improving stability.

Inactive Publication Date: 2009-04-08
ZHEJIANG UNIV
View PDF1 Cites 45 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it only specifies that the tracking target is the human head, which has certain limitations, and the search method based on the genetic algorithm only finds the candidate target most similar to the target, which often cannot effectively deal with the "multi-peak" situation in the image, such as temporary occlusion etc., causing tracking instability

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
  • Target tracking method and device based on video
  • Target tracking method and device based on video
  • Target tracking method and device based on video

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Below, the present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0039] The video-based target tracking method of the present invention mainly includes the following implementation steps:

[0040] Step 10. Establish the feature template of the target and initialize the feature set

[0041] The tracking target can use human-computer interaction to specify the area in the video, or automatically obtain the tracking area according to the moving target detection of the video. Suppose the target is a center (x 0 ,y 0 ), a rectangular area whose length and width are m and n respectively, but is not limited to a rectangular area, and can be in any shape. Based on these prior knowledge, the feature template of the target is established and the set of target particles is initialized. The specific implementation steps are as follows:

[0042] Step 11. Create a weighted histogram template for the target

[0043] ...

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 video target tracking method which is based on multi-cue integration and particle filtration and a device thereof. The method carries out the self-adaptive integration according to three cues of color, edge and feature points to obtain target observation information, then the particle filtration technology is used for updating the target state, and the specific steps comprise: A. a target template is extracted and target parameters are initialized; B. dynamic prediction is carried out on a particle set according to a motion model; C. the particle weight is updated according to multi-cue integration information; D. the motion state of a target is updated. The video target tracking method and the device can improve the tracking effect and the tracking stability of the moving target under the complex environment and the tracked target can comprise human heads, pedestrians, cars, etc.

Description

technical field [0001] The invention belongs to the technical field of computer vision and pattern analysis in signal processing, and in particular relates to a method and device for tracking a target in video based on multi-cue fusion. Background technique [0002] Target tracking was first used in military affairs. Recently, with the development of video technology, target tracking in video has become a popular research topic. It is one of the core topics in the field of computer vision research, the basis for more advanced video applications such as behavior recognition and video retrieval, and an important part of intelligent video surveillance. [0003] A key step in target tracking is data association, how to use the most effective clues to express and describe the target is the key. At present, the main clues are weighted color histogram, color wavelet feature, feature point feature and binary shape template. However, most of the traditional tracking methods are bas...

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): G06T7/20
Inventor 刘云海全晓臣谢宝磊
Owner ZHEJIANG 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