Fast target positioning method and device

A targeted and fast technology, applied in the field of image processing and computer vision, can solve the problems that restrict the popularization and application of infrared thermal imager monitoring products, the limitation of imaging quality and algorithm chip power consumption, and the difficulty of development.

Inactive Publication Date: 2018-02-02
WUHAN GUIDE SENSMART TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Unfortunately, software application algorithms based on infrared images are limited by their imaging quality and algorithm chip power consumption re...

Method used

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  • Fast target positioning method and device
  • Fast target positioning method and device

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Embodiment Construction

[0076] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0077] Such as figure 1 As shown, it is a flow chart of a specific embodiment of a method for quickly locating a target in the present invention, and the method specifically includes the following steps:

[0078] 1. Image preprocessing;

[0079] 2. Multi-threshold segmentation:

[0080] 3. Denoising and hole filling processing;

[0081] 4. Contour extraction;

[0082] 5. The description of ...

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Abstract

The invention discloses a fast target positioning method and device. The method comprises the following steps: according to an input original image, obtaining a binary image; according to the binary image, carrying out target boundary tracking to obtain a target contour, and obtaining a bounding rectangle of the target contour; and according to target characteristics, carrying out target screeningand positioning. The binary image is obtained by carrying out multi-threshold segmentation, denoising and hole filling of the original image, wherein the denoising and hole filling processing is finished through expansion, corrosion, opening and closing operation of mathematical morphology; the boundary tracking is realized through 4-neighborhood or 8-neighborhood chain code tracking; the targetscreening is realized based on a plurality of constraint conditions, wherein the plurality of constraint conditions comprise an aspect ratio constraint, a maximum and minimum area constraint, a regiongray average value constraint and a heel landing constraint; and the positioning comprises acquisition of azimuth and distance. The fast target positioning method and device are applied to the infrared image field, is high in operation efficiency and accurate in analysis.

Description

technical field [0001] The invention belongs to the field of image processing and computer vision, and in particular relates to a method and device for quickly locating a target. Background technique [0002] Intelligent monitoring is to use computer vision technology to process, analyze and understand video signals, and to locate, identify and track targets in the monitoring scene without human intervention. At present, most human detection applications are based on visible light cameras because of their low cost, rich imaging details, and relatively mature research on related algorithms. But it is not suitable for low-light environments, and infrared cameras can overcome this shortcoming. Infrared thermal imaging cameras form images by passively receiving infrared radiation from targets and background radiation, which has no harm to the human body and is not affected by light. Therefore, in recent years, the detection application requirements based on infrared thermal ima...

Claims

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Application Information

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IPC IPC(8): G06T7/73G06T7/136G06T7/13G06T7/62
CPCG06T7/13G06T7/136G06T7/62G06T7/73G06T2207/20036G06T2207/30232
Inventor 田鹏林道庆黄晟王鹏
Owner WUHAN GUIDE SENSMART TECH CO LTD
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