Method for detecting states of traffic lights on basis of video analysis
A detection method and traffic light technology, applied in the fields of image processing, intelligent video surveillance and intelligent transportation, can solve the problems of difficult installation, unfavorable maintenance, high equipment cost, etc., and achieve the effect of easy maintenance, small amount of calculation, and low investment
Active Publication Date: 2014-03-12
武汉众智数字技术有限公司
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[0005] The purpose of the present invention is to overcome the problems of high equipment cost, difficult installation and unfavorable maintenance in the prior art, and provide a traffic light state detection method based on video analysis
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[0029] Below in conjunction with accompanying drawing and embodiment describe in detail:
[0030] 1. Traffic light status detection device based on video analysis
[0031] 1. Intelligent network camera (with DSP image sensor)
[0032] 1) overall
[0033] Such as figure 1 , the device includes existing LENS optical lens 1, CCD image sensor 2, signal acquisition converter 3, HV signal driver 4, FPGA programmable logic processor 5, H264 video encoder 6, SDRAM memory 7 and ARM central processor 8;
[0034] A DSP image processor 9 is provided;
[0035] LENS optical lens 1 and CCD image sensor 2 are connected back and forth, CCD image sensor 2, signal acquisition converter 3, FPGA programmable logic processor 5, HV signal driver 4 and CCD image sensor 2 are sequentially connected to form a loop to realize image sequence acquisition function;
[0036] FPGA programmable logic processor 5, H264 video encoder 6 and ARM central processor 8 are sequentially connected to realize image...
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The invention discloses a method for detecting states of traffic lights on the basis of video analysis, and belongs to the field of image processing, intelligent video monitoring and intelligent traffic. The method includes 1, acquiring an image from a video source; 2, acquiring approximate regional position information of each signal light in each light set according to configuration information of the light set; 3, acquiring image data in signal light regions from the image Img and the approximate regional position information SignalRect; 4, acquiring HSV (hue, saturation and value) color spatial data ImgRect_HSV of the image data ImgRect; 5, judging color states of the signal light regions; 6, judging whether each signal light in each light set is computed or not; 7, acquiring the color state of each signal light in each light set, and combining the color states of the signal lights with attributes of the light sets to obtain traffic states of lanes relevant to the light sets. The method has the advantages that an intelligent camera is integrated, accordingly, investment and expenditures are low, and the intelligent camera can be maintained easily; the traffic lights in various environments can be detected stably and adaptively.
Description
technical field [0001] The invention belongs to the fields of image processing, intelligent video monitoring and intelligent transportation, and in particular relates to a traffic light state detection method based on video analysis. Background technique [0002] With the rapid development of my country's economy and the sharp increase in the number of social motor vehicles, vehicle-related incidents and cases have increased exponentially. In order to improve the level of social security and reduce the probability of vehicle-related incidents and cases, detection and monitoring technologies for motor vehicles have been extensively studied. In recent years, with the continuous development of computer technology, image processing technology, artificial intelligence technology and pattern recognition technology, the method based on video detection has been widely used in traffic scenes such as security checkpoints and red light capture. [0003] At present, the mainstream way ...
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IPC IPC(8): G08G1/097G06T7/40
Inventor 徐惠惠张仁辉许金金
Owner 武汉众智数字技术有限公司