Vehicle steering judgment method and system based on image ambiguity comparison

A blurring and image technology, applied in the field of image processing, can solve the problems of low practicability, high calculation amount of matching algorithm, consumption of computing resources and speed, etc.

Active Publication Date: 2015-04-22
XIAMEN YAXON NETWORKS CO LTD
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Problems solved by technology

This solution judges the turning state by matching the synthetic image of the vehicle-mounted surround view system. Due to the large amount of surround view image data and the high computa

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  • Vehicle steering judgment method and system based on image ambiguity comparison
  • Vehicle steering judgment method and system based on image ambiguity comparison
  • Vehicle steering judgment method and system based on image ambiguity comparison

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Embodiment Construction

[0062] see figure 1 , the present invention, a kind of vehicle steering judging method based on image ambiguity comparison, said method comprises: image acquisition process, image segmentation process, ambiguity calculation process, ambiguity statistical process and steering judgment process:

[0063] The image collection process: the camera equipment collects the driving image of the vehicle at each moment in real time;

[0064] The image segmentation process: receiving the driving image and dividing the driving image into a plurality of sub-images, deleting the sub-images in which the grayscale and color scale change gently (such as the same color of the sky, the road, the black area in the distance at night, etc. They all belong to sub-images with gentle changes in grayscale and color scale, and they are not sensitive to blurred changes in the image), thus extracting sub-images that are sensitive to changes in gray scale and color scale to form ROI areas; in this way, the i...

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Abstract

The invention provides a vehicle steering judgment method based on image ambiguity comparison. The method includes the steps of collecting driving images of a vehicle at all moments in real time through a camera shooting device, receiving the driving images and dividing the driving images into a plurality of sub-images, extracting the sub-images sensitive to gray level and color gradation changes to form ROI areas, symmetrically dividing each ROI area into a left area and a right area, calculating the image ambiguity degree of each area, counting the difference values between the image ambiguity degrees of the left areas and the right areas of the ROI areas composed of 300 or more driving images corresponding to different speeds, calculating mean values and variances of all the difference values at the corresponding speeds, and judging whether the vehicle is in the turning state or not and judging the steering direction of the vehicle according to the difference value between the image ambiguity degrees of the left area and the right area of the corresponding ROI area at the current speed of the vehicle. The method is small in calculation amount, the turning state of the vehicle can be rapidly judged in real time without being limited by day or night conditions, and the method is particularly suitable for back-mounted portable navigation products.

Description

technical field [0001] The present invention relates to the field of image processing, more specifically, to a method and system for judging vehicle steering based on comparison of image fuzziness. Background technique [0002] With the continuous development of society, cars are becoming more and more popular among the masses, and more and more people own cars. However, due to the frequent occurrence of automobile accidents, the driving safety of automobiles has become a key issue that cannot be ignored in today's society. Automobile accidents often occur at the corners. When the traffic recorder detects that the vehicle is turning and the speed is too fast, it needs to generate an alarm to remind the driver of safety, especially for portable after-installed navigation instruments, because they cannot be used like the original equipment of the vehicle. Convenient acquisition of steering wheel signals and axle steering signals will often increase the judgment time and make ...

Claims

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Application Information

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IPC IPC(8): G06T7/00
CPCG06T2207/30248
Inventor 涂岩恺陈义华时宜黄家乾季刚
Owner XIAMEN YAXON NETWORKS CO LTD
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