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Automobile data recorder panoramic video generation method

A driving recorder and panoramic video technology, applied in the field of panoramic video generation, can solve the problems of chaotic visual effects, inability to record the driving video of the left and right sides and front and rear of the vehicle body, and inability to provide evidence for accidents, etc. Horizontal and vertical errors, the effect of eliminating errors

Active Publication Date: 2014-06-11
XIAMEN YAXON NETWORKS CO LTD
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AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to overcome the shortcomings that the driving recorder in the prior art cannot record the driving videos of the left and right sides and the front and rear of the vehicle body, cannot provide evidence for accidents in these directions, or the visual effects are confused due to the independent display of videos in each direction. Propose a method for generating panoramic video of driving recorder

Method used

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  • Automobile data recorder panoramic video generation method
  • Automobile data recorder panoramic video generation method
  • Automobile data recorder panoramic video generation method

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Embodiment Construction

[0030] The present invention will be further described below through specific embodiments.

[0031] First, install the fisheye lens in four directions, refer to figure 1 , the four fisheye lenses are respectively installed in the middle of the front, rear, left and right edges of the car roof, the imaging optical axis of the lens is horizontal to the vehicle body, the shooting angles of adjacent lenses differ by 90 degrees, and the imaging angle range of each fisheye lens is 170 degrees. The resolution is 720×576, and the output signal is CVBS analog signal. The four-way analog signal is converted into a digital image by an A / D conversion chip (SAA7111 is used in this example), and then the virtual viewpoint is transformed.

[0032] A kind of driving recorder panoramic video generation method of the present invention, refer to image 3 , including the following steps

[0033] 1) The step of transforming the virtual viewpoint. The four fisheye lenses respectively capture the...

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Abstract

The invention relates to an automobile data recorder panoramic video generation method, which comprises the following steps: 1) transforming virtual viewpoints; 2) performing cylindrical projection; 3) splicing images; 4) circularly storing; 5) performing panoramic display. Aiming at the video image characteristics of an automobile data recorder, the difficulties of lens blocking, lens position difference, angle difference and other panoramic vide generation can be solved by digital picture processing technique of virtual viewpoint transformation, cylindrical projection and parameter searching-based image splicing, the 360-degree panoramic situation around automobile driving can be recorded, excellent circular viewing effect can be achieved, the stored data quantity can be reduced, and the recording time can be prolonged under the same storage space condition.

Description

technical field [0001] The invention relates to the field of panoramic video generation methods, in particular to a panoramic video generation method for driving recorders. Background technique [0002] With the continuous increase of car ownership in today's society, traffic accidents occur frequently, and the lack of on-site evidence often leads to unclear identification of accident responsibilities and difficulties in finding hit-and-run problems. The driving recorder function is to provide evidence for accidents by recording driving videos for such problems. At present, the common video recorders on the market only have one camera to record the video in front of the car. Its disadvantage is that it cannot record the driving video of the left and right sides and the rear of the car body, so it cannot provide evidence for accidents in these directions; currently there are some products and patents (such as practical New patent authorization announcement specification CN20...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07C5/08
Inventor 涂岩恺杨磊陈义华张松水汤益明
Owner XIAMEN YAXON NETWORKS CO LTD
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