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Visual target identification and tracking method

A target recognition and vision technology, applied in the field of image analysis, can solve problems such as low accuracy and poor real-time performance, and achieve the effect of improving real-time performance and reducing the search range

Inactive Publication Date: 2011-03-16
SHANGHAI DIANJI UNIV
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AI Technical Summary

Problems solved by technology

[0010] The present invention provides a visual target recognition method aiming at the defects of low accuracy and poor real-time performance of the existing visual target recognition and tracking methods in the prior art
[0011] Another object of the present invention is to provide a tracking method for a visual target identified by the visual target recognition method in view of defects such as low accuracy and poor real-time performance of the existing visual target recognition and tracking method in the prior art

Method used

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Embodiment Construction

[0032] In order to illustrate the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0033] see figure 1 , figure 1 Shown is the flow chart of the visual target recognition method. In visual target recognition, the available information is the edge information, geometric information and chromaticity information of the visual target. The visual target recognition method 1 comprises the following steps:

[0034]Step S11: converting the collected original image 10 into a binary image 20, the original image 10 being a color image in RGB format. The binary image 20 is a black and white two-color image;

[0035] Step S12: Calculate the bounding box of the visual target on the basis of the binary image 20;

[0036] Step S13: Find feature points within the bounding box.

[0037] In order to improve the real-time performanc...

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Abstract

The invention provides a visual target identification method, comprising the following steps: inverting a collected original image to a binary image; calculating the enclosure frame of a visual target on the basis of the binary image; and searching characteristic points in the enclosure frame. The invention also discloses a visual target tracking method. The method comprises: pretermitting that the size of the search window of a zeroth frame is the same as that of the image; identifying a first frame image to obtain the enclosure frame; and predicting the search window. In the invention, an image processing method is used to calculate the enclosure frame and the characteristic points in the enclosure frame. Meanwhile, on the basis of a target tracking technology, the invention also provides a method based on a predictable search window, so as to predict and track the motion of the target, thereby obviously reducing the search range and improving the instantaneity of the target tracking method.

Description

technical field [0001] The invention relates to the technical field of image analysis, in particular to a visual target recognition and tracking method. Background technique [0002] Visual target recognition and tracking is to identify the position of the visual target from the sequence images, calculate the state of the target of interest, and adopt different tracking strategies according to the target properties, degrees of freedom and tracking conditions. Visual target recognition and tracking technology has good application scenarios in fingerprint recognition for identity verification, face recognition, image processing, intelligent traffic management, and simulation robots. [0003] At present, visual target recognition and tracking technology has become the focus of information processing technology development at home and abroad. The existing visual target recognition mainly has the following methods: [0004] (1) The classic statistical pattern recognition method...

Claims

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Application Information

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IPC IPC(8): G06T7/20
Inventor 熊玉梅宁建红闫俊英
Owner SHANGHAI DIANJI UNIV
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