Method and system for automatic positioning and identifying target based on high definition video images

A high-definition video, automatic positioning technology, applied in character and pattern recognition, instruments, computer parts and other directions, can solve the problems of high resolution video image, difficult detection and positioning, large scene range, etc., to adapt to a large dynamic range , The effect of high target recognition accuracy, reducing installation requirements and difficulty

CN102768731AInactive Publication Date: 2012-11-07陕西省交通规划设计研究院有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2012-11-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method and a system for automatic positioning and identifying a target based on high definition video images. The system comprises a high definition video image enhancement processing module, a target detecting and positioning module, a grayscale image binarization module, a target contour image inclination correction module, a target contour image dividing and feature extracting module, and a target contour image identifying and post-processing module. The system has the advantages that automatic target detecting and fast target positioning and identifying effect of high definition (above 2 million pixels) video images (moving) under complicated conditions is fine, high definition video image enhancement processing effect under uneven illumination conditions is fine, dynamic range is large, automatic target positioning and identifying precision are high and the like. In the meantime, reliability and stability of software is improved greatly by the design of an embedded software function, and construction mounting requirement of a front end embedded system (intelligent camera) is lowered.
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Description

technical field

[0001] The invention relates to a system and method for automatic positioning and recognition of targets based on high-definition video images, which can be used in complex scenes in the fields of public safety, parking management, intelligent transportation, and comprehensive emergency response. Background technique

[0002] In recent years, high-definition cameras have been increasingly used in high-definition video image monitoring under complex backgrounds in the fields of public security, parking management, intelligent transportation, and comprehensive emergency response. The traditional standard-definition video image target positioning and recognition methods cannot be directly transformed into high-definition video image (moving) target (fast) Zigong positioning and recognition processing in complex scenes. It is difficult to detect (fast) automatic contour (edge) detection and positioning of (moving) targets in a fixed detection area. There are mult...

Examples

Embodiment Construction

[0021] The technical solution of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0022] figure 1 It is a flow chart of the method for automatic positioning and recognition of high-definition video image targets in the present invention. As shown in the figure, the specific technical implementation scheme of the present invention includes the following steps:

[0023] Step 101, image enhancement processing is performed on the high-definition video collected by the high-definition camera in real time (determine the image enhancement filter template type and weighting coefficient according to the background and content in the high-definition video image), and compare the high-definition video in real time to set the detection area image and the dynamic background The difference between images, fast automatic contour (edge) detection and positioning of (moving) targets in the real-time collected high-de...