Tracking method based on center detection

A center detection and center point technology, applied in the tracking field, can solve the problems of easy loss of tracking, slow development speed, poor tracking effect of fast moving targets, etc., and achieve the effect of fast response speed, small calculation amount and easy calculation

Active Publication Date: 2014-03-05
山东神戎电子股份有限公司
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There are many aspects involved in target tracking, and the correlation of various aspects and the dependence of processing methods on the front and back are relatively strong, resulting in a relatively slow overall development speed. At present, there is still no good tracking method. The common phenomenon is that tracking is easy. Lost, the tracking effect on fast moving targets is not good, and even the tracking target is shifted during the tracking process

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
  • Tracking method based on center detection
  • Tracking method based on center detection
  • Tracking method based on center detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Taking the gimbal as a carrier to track the target as an example, the tracking system includes a target detection and recognition module, a target field of view calculation module, and a gimbal control module.

[0031] The functions assigned to each module in this example are as follows:

[0032] Target detection and recognition module: The main function of this module is to detect the target to be tracked from the video stream through the video image processing algorithm, and output the target image, which is one of the inputs of the target field of view calculation module.

[0033] Target field of view calculation module: the main function of this module is to detect the target center point according to the target image, and obtain the coordinates of the target center point in the image C(x,y) , and according to the camera parameters (lens focal length F , sensor resolution P(X,Y) ) by calculating the field of view angle of the center point of the target A(x,y) ...

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 tracking method based on center detection. The method comprises the steps of (1) acquiring a video image of the current frame and a video image of the last frame; (2) extracting image background based on the two frames of images obtained from the step (1) and the current tracking speed by means of a displacement frame difference algorithm; (3) obtaining a target image by means of the difference between the obtained images and a background image; (4) determining the coordinates of the center point of the target image; (5) conducting tracking according to the current route if the distance between the center point of the target image and the center of the image of the current frame is smaller than a preset threshold value, and executing the step (6) if not; (6) calculating the field angle of the center point of the target image, and starting tracking according to the deviation between the field angle of the center point of the target image and the field angle of the center point of the image of the current frame to enable the field angle of the center point of the target image to be close to the field angle of the center point of the image of the current frame. The tracking method based on center detection has a good tracking effect.

Description

technical field [0001] The present invention relates to a tracking method, which is used for PTZ tracking of targets meeting certain characteristics, wherein PTZ is the abbreviation of Pan / Tilt / Zoom, which represents pan-tilt omnidirectional (up and down, left and right) movement and lens zooming and zooming control. Background technique [0002] In recent years, with the development of the security industry, various new technologies have emerged on the market and applied in different fields, among which automatic tracking technology is a relatively popular cutting-edge technology. The tracking method can be understood as target detection and tracking, which is a frontier direction that has attracted much attention in the field of computer vision in recent years. It usually includes detecting, recognizing, tracking targets in image sequences of moving targets, and understanding and describing them. [0003] Target analysis includes pattern recognition, image processing, comp...

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 彭春华马敬锐杜华鹏
Owner 山东神戎电子股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap