High-definition video detection data-based region dynamic origin and destination (OD) matrix acquiring method
A high-definition video and detection data technology, which is applied in the traffic control system of road vehicles, instruments, traffic control systems, etc., can solve the problems of limited sampling samples, complex calculation, and difficulty in satisfying dynamic signal control, etc., and achieve the goal of expanding acquisition capabilities Effect
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[0021] In order to make it easy for those skilled in the art to understand the technical means, creative features, objectives and effects achieved by the present invention, the present invention will be further described below in conjunction with specific illustrations.
[0022] Schematic diagram of device setup for dynamic OD data acquisition based on high-definition video detection figure 1 shown. The implementation process of the regional dynamic OD data acquisition method based on license plate recognition data of the present invention is specifically as follows:
[0023] 1. With 5 minutes as the minimum time unit, select the OD area, and determine the corresponding relationship between the HD camera ID number and the intersection ID number in the database.
[0024] 2. Install high-definition video detection equipment and set up virtual coils:
[0025] (1) If a CCD 16mm 2 / 3 lens is used, the HD camera should be installed at a distance of 25-30m; if a CCD 16mm1 / 2 lens is ...
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