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Video surveillance target detection method and device

A technology for target detection and video surveillance, applied in the field of image processing, can solve problems such as low detection efficiency

Active Publication Date: 2016-09-21
ZMODO TECH SHENZHEN CORP
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  • Claims
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Problems solved by technology

Therefore, in the existing technology, it is necessary to perform multiple zooming on the entire range of the image before scanning, and the detection efficiency is relatively low.

Method used

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  • Video surveillance target detection method and device
  • Video surveillance target detection method and device

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Embodiment Construction

[0056] 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.

[0057] see figure 1 , in one embodiment, provide a kind of video surveillance target detection method, its procedure comprises:

[0058] Step 102 , using a sliding window detection method to detect the input first N frames of images, determine the target scale range of each pixel in the image, and determine the image scaling parameters corresponding to the target scale.

[0059] The first N frames of images input are used as learning frames, and N is greater than 1, which is an integer. When the sliding window detection method is used to detect the input image, the size of the image is a×b pixels...

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Abstract

The invention discloses a video monitoring target detection method and device. The method comprises the following steps: detecting the first N frames of input images by a sliding window detection method, determining the target scale range of each pixel point in the images and determining image scaling parameters corresponding to target scales, wherein N is greater than 1 and is an integer; according to the target scale range of each pixel point, dividing the images into a plurality of scanning zones; determining the zone target scale range of each scanning zone according to the target scale ranges of the pixel points in the scanning zone and determining an image scaling parameter corresponding to the scanning zone; as for the scanning zones of subsequently input images, detecting targets in the images by the sliding window detection method according to corresponding image scaling parameters. Through application of the technical scheme provided by the invention, the target detection efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a video monitoring target detection method and device. Background technique [0002] In the field of intelligent video surveillance technology, it is often necessary to detect specific targets, such as people, faces, cars, etc. The method currently used is to detect through classifiers. Common classifiers include cascaded Adaboost classifiers and SVM (SVM, Support Vector Machine, Support Vector Machine) classifiers. [0003] In the prior art, when the classifier is used to detect the target, the sliding window detection method is adopted, and a fixed-size classifier template detection window is used to detect the entire image according to a certain step size from left to right and from top to bottom. , to determine whether the image in the window contains the target. In order to detect targets of various sizes in the image, the image needs to be reduced repeatedly, eac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00H04N7/18
Inventor 雷明
Owner ZMODO TECH SHENZHEN CORP
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