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Target detection method based on semantic Hough transformation and partial least squares

A partial least squares, target detection technology, applied in the field of computer vision, can solve problems such as difficulty and difficulty in producing results

Inactive Publication Date: 2014-09-03
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the number of thresholds and parameters is larger, it is more difficult to choose the appropriate value, and it is difficult to produce the best effect

Method used

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  • Target detection method based on semantic Hough transformation and partial least squares
  • Target detection method based on semantic Hough transformation and partial least squares
  • Target detection method based on semantic Hough transformation and partial least squares

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Embodiment Construction

[0050] Below in conjunction with accompanying drawing and embodiment the method of the present invention is described in detail, present embodiment is carried out under the premise of technical scheme of the present invention, has provided embodiment and specific operation process, but protection scope of the present invention is not limited to following the embodiment.

[0051] see figure 1 , the implementation of the embodiment of the present invention includes the following steps:

[0052] S1. Prepare training sample set (x 0i , x 1i , x 2i ,...,x mi , d i ,y i ), i=1,..., N, N is the number of training samples, N is a natural number, and the order of magnitude is usually 10 4 above. x 0i Represents the feature vector corresponding to the training sample. Each training sample is an image block, generally with a size of 16 pixels × 16 pixels. The image block taken from the target of interest is a positive sample, and the image block taken from other images is a nega...

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Abstract

A target detection method based on semantic Hough transform and partial least square method, involving computer vision technology. First, use the training set to establish a regression model between the feature vector of the image block, the semantic feature vector, the category of the image block and the voting offset vector, and then substitute the feature vector and semantic feature vector of each image block in the image to be detected into the regression model , find out the image blocks with positive categories and generate votes to form a Hough image, and finally find the local maximum point of the voting density in the Hough image as the detection result to complete the target detection.

Description

technical field [0001] The invention relates to computer vision technology, in particular to a target detection method based on semantic Hough transform and partial least square method. Background technique [0002] Computer vision was originally separated from the field of digital image processing in the 1960s and became an independent research direction, and has been widely used in aerospace, automatic navigation, industrial inspection, medical research, clinical diagnosis and treatment, security monitoring and tracking, national defense , transportation, remote sensing and many other important fields. Among them, object detection, especially human-related detection, is a key technology closely related to various practical applications. Take public transportation, which urban residents must participate in every day, as an example. More than one million people die in traffic accidents around the world every year, but accurate and fast pedestrian detection technology can de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/66
Inventor 王菡子唐建宇
Owner XIAMEN UNIV
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