Method and system for identifying current road vehicles as well as car video recorder
A current road and vehicle technology, applied in the direction of registration/indicating vehicle operation, character and pattern recognition, instruments, etc., can solve problems such as assisting and guiding drivers, false alarms, and inability to accurately judge other vehicles and the driver's vehicle. To achieve the effect of improving detection accuracy and accuracy
Inactive Publication Date: 2017-01-25
SHANGHAI DROI TECH CO LTD
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Problems solved by technology
[0003] The detection accuracy of the current driving recorder is low, and the detection of the road edge is not accurate, and there are often a large number of false alarms when the vehicle is too close to the side line; in addition, due to the inaccurate detection of the road edge, it is impossible to accurately judge other vehicles and drivers Whether the vehicle is driving in the same lane or whether the vehicle in the same lane maintains a safe distance from the driver’s vehicle cannot make an accurate judgment, so too many false alarms cannot truly assist and guide the driver to drive safely
Method used
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[0030] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0031] Such as figure 1 , a method of identifying a vehicle on a current road, comprising:
[0032] Step 11. Obtain the picture of the driver's driving road, identify two points on the left side of the road and two points on the right side of the road, and obtain the intersection point of the left and right road sides by calculation, that is, the closure of the road Area area;
[0033] Step 12. Obtain four fixed points of at least one vehicle, and establish a square frame model that just frames the vehicle for each vehicle; in this step, obtain a large number of various vehicle photos through multiple experiments, and use the Cascadeclassifier training method to obtain The xml file of the training sample, through opencv pattern recognition and calculation of various vehicle models, and at least four fixed points of ...
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The invention provides a method and a system for identifying current road vehicles as well as a car video recorder. The method for identifying the current road vehicles comprises the following steps: a picture of a road on which a driver travels is acquired, two points on a left road edge line and two points on a right road edge line are identified, and intersection points of left and right road edge lines are acquired through computation, that is, a closed area of the road is obtained; four fixed points of at least one vehicle are acquired, and a square frame model just covering each vehicle is established for the vehicle; whether the square frame model of each vehicle intersects the closed area of the road is judged, and if intersection exists, the vehicle travels on the same lane with the vehicle of the driver. With adoption of the method, the detection precision of the car video recorder can be improved greatly, the accuracy for identifying vehicles on the same lane is improved, and safe vehicle driving is guaranteed.
Description
technical field [0001] The invention relates to the field of safe driving of vehicles, in particular to a method, system and driving recorder for identifying current road vehicles. Background technique [0002] Drive recorder refers to the instrument of the relevent informations such as image and sound in registration of vehicle traveling way. Driving recording is installed After instrument, the video image and sound of running car overall process can be recorded, evidence can be provided for traffic accident. Video recording while driving, while recording the time, speed, and location in the video, which is quite a "black box". At the same time, it can assist and guide drivers to drive safely and reduce the number of safety accidents. [0003] The detection accuracy of the current driving recorder is low, and the detection of the road edge is not accurate, and there are often a large number of false alarms when the vehicle is too close to the side line; in addition, due to...
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IPC IPC(8): G06K9/00G07C5/08
CPCG07C5/0866G06V20/588G06V20/584
Inventor 王超朱敏慧朱启超
Owner SHANGHAI DROI TECH CO LTD