Image rotation processing method based on automatic jaywalking recording system
A technology of image rotation and automatic recording, which can be used in image communication, traffic flow detection, electrical components, etc., and can solve the problem of wasting equipment resources
Active Publication Date: 2014-05-14
NANJING LES INFORMATION TECH
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Problems solved by technology
For intersections with relatively large width and depth, it is necessary to use a high-definition camera with a large-size CCD sensor to capture pictures, but for intersections with relatively large width and relatively small depth or relatively small width and relatively large depth, if a large-size CCD is used A high-definition camera with a sensor will appear to be a waste of equipment resources
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[0026] Image acquisition steps:
[0027] see figure 1 As shown, the image rotation processing method of the present invention is designed to adopt a 2 million pixel color progressive scan CCD sensor, the sensor size is 1 / 1.8 inches, and the number of pixels is a high-definition camera of 1616 (H) × 1232 (V). When image rotation is not used, the horizontal resolution of the collected image is 1616, and the vertical resolution is 1232, so this image collection method is suitable for the situation where the actual physical size of the actual intersection is relatively large, but the depth is relatively small, so as to completely cover the lateral distance of the lane , to monitor all vehicles, while taking into account the depth, and collect red lights as the basis for capturing. CCD sensors and CMOS sensors are currently two commonly used image sensors, both of which use photodiodes (photodiodes) for photoelectric conversion, and the sensitivity of CCD sensors is higher than th...
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The invention relates to an image rotation processing method based on an automatic jaywalking recording system. The automatic jaywalking recording system comprises an image acquisition unit, wherein the image acquisition unit is a camera with a sensor. The image rotation processing method comprises the following steps of: image acquisition, to be specific, finishing image sampling of one side of a junction, which has larger practical physical size, by utilizing one side of the sensor, which has larger pixel number, through rotating the erection of the camera; and image rotation, to be specific, carrying out image rotation through processing original data, wherein the image rotation angle and direction are the same as the camera rotation angle and direction. Due to adoption of the image rotation processing method disclosed by the invention, image acquisition can be carried out on the junction which has larger practical physical size and smaller depth or small practical physical width and larger depth by using the high-definition camera with the small-size sensor, and thus various advantages in cost, resources, field construction and the like are brought.
Description
technical field [0001] The invention relates to an image rotation processing method based on an automatic recording system for running a red light, which is applied to high-definition video electronic police. Background technique [0002] The automatic recording system for running red lights has become an important part of off-site law enforcement technical means, and has played a positive role in effectively eliminating and reducing violations such as motor vehicles running red lights for the public security traffic police department, and has been widely used in modern traffic law enforcement , achieved great results. In the process of accelerating the informatization and intelligentization of the urban traffic management system, in terms of improving the traffic capacity of the urban road network on the existing scale of urban construction, ensuring the safe driving of vehicles, and improving the efficiency and execution of the management traffic system, running a red ligh...
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IPC IPC(8): G08G1/01H04N1/387
Inventor 成晟陈云宋阳
Owner NANJING LES INFORMATION TECH