A system and method for automatic recognition of special vehicle instrumentation based on computer vision
A special vehicle, automatic identification technology, applied in the direction of computer parts, calculation, character and pattern recognition, etc., can solve the problem of difficulty in identifying the instrument of special vehicles
Inactive Publication Date: 2015-11-25
UNIV OF SCI & TECH BEIJING +2
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Problems solved by technology
Special vehicle gauges have their own unique features, such as wider pointers, gauge pointers that are not as long as industrial gauges, gauge dials are mostly black, and the center point is not in the middle of the dial, etc., as shown in Table 1. These characteristics give special vehicle gauges identification great difficulty
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[0047] Hardware System Implementation of Automatic Identification of Meters
[0048] The hardware system implementation of the automatic identification of the instrument is as follows: figure 1 As shown, it includes: special vehicle instrument, CCD digital camera, standard input source (input voltage, current or temperature signal), light baffle, computer, data bus, mechanical shelf and other parts. The standard input source drives the meter, and the CCD digital camera captures the dynamic video image of the special vehicle meter in real time, and inputs the digital image into the computer. The driving algorithm analysis part in the computer performs instrument identification. The light baffle is mainly used to remove the complex background, so that the input image of the special vehicle instrument is simpler. After the hardware system is built, the hardware needs to be adjusted during use. When adjusting the hardware, it is necessary to determine the quality of the instrum...
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The invention belongs to instrument identification, computer vision, software engineering and video image processing and relates to a special vehicle instrument automatic identification system and an algorithm based on computer vision, wherein video images can be obtained through a video camera, and special vehicle instruments can be automatically identified. The special vehicle instrument automatic identification system based on the computer vision is characterized in that the special vehicle instrument automatic identification system comprises an instrument video image collecting system, a data processing system and an instrument automatic identification detection system, wherein the instrument video image collecting system comprises a charge coupled device (CCD) digital camera, video images of special vehicle instrument trends can be obtained from the CCD digital camera in real time through bus, and the video images are transmitted to the data processing system, the data processing system is in charge of saving and screening video data, distinguishing resulting save and managing data relative tasks, and the video data is transmitted to the instrument automatic identification detection system by the data processing system. The instrument automatic identification detection system is capable of invoking an identification algorithm of special vehicle instrument images, and identified results are reported back to a data processing center.
Description
technical field [0001] The invention belongs to instrument identification, computer vision, software engineering and video image processing, and can automatically identify special vehicle instruments through video images acquired by cameras. Background technique [0002] The pointer meter has a simple structure and is easy to use. The pointer meter is one of the most common measuring instruments used on special vehicles. The identification and verification of pointer instruments for special vehicles in China mainly adopts the method of manual reading. This method of discrimination is affected by human subjective factors such as human observation angle, observation distance, human eye fatigue, etc., and is unstable and unreliable. . Moreover, the data processing workload is heavy and the recognition efficiency is low. In addition, errors may be caused because the eyes cannot keep up with the rotation speed of the pointer. [0003] The research on automatic instrument ident...
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IPC IPC(8): G06K9/00G06K9/46
CPCG06V20/59G06V2201/02
Inventor 白真龙郭迎春王涛张伏龙白征东张华李广峰张昌俊
Owner UNIV OF SCI & TECH BEIJING