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Rapid vehicle detection method and device under low resolution

A vehicle detection, low-resolution technology, applied in the field of rapid vehicle detection methods and devices, can solve problems such as inability to capture high-precision and high-quality vehicles, and achieve the effects of rapidity, accuracy, and high computational complexity

Inactive Publication Date: 2014-05-14
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Problems solved by technology

[0004] The purpose of the present invention is to provide a fast vehicle detection method and device at low resolution, which solves the problem that existing traffic cameras and inspection systems cannot capture high-speed vehicles with high precision and high quality

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  • Rapid vehicle detection method and device under low resolution
  • Rapid vehicle detection method and device under low resolution

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Embodiment Construction

[0027] 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.

[0028] figure 1 An embodiment of a fast vehicle detection method at a low resolution of the present invention is shown: a fast vehicle detection method at a low resolution, comprising the following steps:

[0029] Step 1, collecting a predetermined number of vehicle pictures as training samples, and adjusting the training samples to a predetermined pixel size;

[0030] Step 2, extracting and saving vehicle features from the training samples;

[0031] Step 3, extract pictures from the video;

[0032] Step 4, shrinking the extracted pictures proportionally to obtain a picture group with variable r...

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Abstract

The invention relates to a rapid vehicle detection method and device under low resolution. The method includes the following steps of collecting a preset number of vehicle images to serve as a training sample, adjusting the training sample to a preset pixel size, extracting vehicle characteristics from the training sample, storing the vehicle characteristics, extracting images from a video, conducting equal proportion shrinkage on the extracted images to obtain a resolution-ratio-variable image set, conducting traversal on the image set through a detection window with the same pixel size as the training sample according to the stored vehicle characteristics, extracting haar-like characteristics of corresponding positions in the image set, conducting detection matching according to the haar-like characteristics and the vehicle characteristics stored in the training sample, dividing objects with the vehicle characteristics into the same classification, recording the positions and the rectangular sizes of the detected objects the same vehicle characteristics, and completing detection. According to the rapid vehicle detection method and device, a very good vehicle detection effect is obtained through the least operation amount, and rapidity and accuracy of vehicle detection are achieved.

Description

technical field [0001] The invention relates to the field of computer vision and pattern recognition, in particular to a method and device for fast vehicle detection at low resolution. Background technique [0002] At present, the demand for "intelligent transportation" and "electronic police system" is more and more extensive. It can automatically detect vehicles and monitor the driving of vehicles. When a vehicle is found to be driving illegally, it can automatically capture evidence pictures and automatically record vehicle-related information. . [0003] However, vehicle detection, especially its rapidity and accuracy, is a difficult problem to be solved by current technology. Only when the speed of the algorithm is realized, can more video channels be processed on a lower-cost hardware platform, and low-cost and high-quality can be truly realized; Widely used on the road. Contents of the invention [0004] The purpose of the present invention is to provide a low-re...

Claims

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Application Information

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IPC IPC(8): G06K9/66G06K9/46
Inventor 程洪杨路艾永春
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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