Affine motion target tracing algorithm based on fast robust feature matching

A robust feature and target tracking technology, applied in the field of affine moving target tracking algorithm, can solve problems such as unsuitable real-time tracking system, large amount of calculation, and tracking failure
CN102750708AInactive Publication Date: 2012-10-24TIANJIN UNIV
2 Cites 29 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN UNIV
Publication Date
2012-10-24
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention belongs to the field of computer vision and aims at solving the problem that the continuous self-adapting mean shift algorithm is apt to be interfered by color close backgrounds and achieving real-time steady tracing of affine motion targets in complex backgrounds. The technical scheme is that an affine motion target tracing algorithm based on fast robust feature matching includes the following steps: (1) enabling a target area determined in video flowing to be switched from a red, green and blue (RGB) color space to a hue, saturation and value (HSV) color space; (2) detecting fast robust feature points of an H channel, an S channel and a V channel of a current frame target area; (3) obtaining a minimum external interesting area through the position of matched and purified feature points; (4) determining the mass center of a target probability distribution map, namely the search window position, by aid of the mean shift iterative algorithm; (5) performing updating and restraining; and (6) finishing single-step tracing if iteration is converged and entering the step 2 for continuing operating otherwise. The affine motion target tracing algorithm is mainly applied to image processing.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of computer vision and relates to an affine moving target tracking algorithm based on fast and robust feature matching, which can be applied to the field of intelligent security. Specifically, it involves an affine moving target tracking algorithm based on fast and robust feature matching. Background technique

[0002] Moving object tracking is one of the core technologies for object detection, and it is also the basis for subsequent high-level processing, such as behavior understanding. As the key to the automation of intelligent video surveillance technology, target tracking is widely used in the fields of traffic monitoring and public security.

[0003] In information theory, object tracking can be defined as estimating the state of a system given a set of observations. In visual tracking, the target of tracking is the target feature extracted from the image. If the position and shape of the feature can be accura...

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