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Multi-sensor fusion road surface type identification method and device

A multi-sensor fusion and type recognition technology, applied in character and pattern recognition, instruments, computer parts, etc., can solve the problems of the decrease in the measurement accuracy of the road surface profile and affect the accuracy of road type recognition, and achieve the effect of improving the accuracy.

Active Publication Date: 2015-03-04
长光驰宇科技(长春)有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the laser beam of the lidar cannot be irradiated vertically to the ground, and the angle is formed, the measurement accuracy of the road surface profile will be reduced, thereby affecting the accuracy of road surface type recognition

Method used

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  • Multi-sensor fusion road surface type identification method and device
  • Multi-sensor fusion road surface type identification method and device
  • Multi-sensor fusion road surface type identification method and device

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Experimental program
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Embodiment 1

[0014] Such as figure 1 As shown, it is a schematic flow chart of the multi-sensor fusion road surface type recognition method of Embodiment 1, which includes:

[0015] Obtaining road surface type identification results Step 101: Acquire road surface type identification results of a plurality of sensors fixed on the vehicle.

[0016] Road surface type identification result merging step 102: combine the road surface type identification results of each sensor according to the voting method, and obtain the combined road surface type identification result of each sensor. Specifically, within a predetermined period of time, the road surface type recognition results of each sensor are merged to generate a combined road surface type recognition result. If within the predetermined time period, a certain sensor only outputs one road surface type recognition result, Then directly use the road surface type recognition result as the merged road surface type recognition result, and for a ...

Embodiment 2

[0038] Such as image 3 As shown, it is a schematic structural diagram of a multi-sensor fusion road surface type recognition device according to Embodiment 2 of the present invention, which includes: obtaining a road surface type recognition result module 201, which is used to obtain the road surface type recognition results of multiple sensors fixed on the vehicle The road surface type identification result merging module 202 is used to merge the road surface type identification results of each sensor according to the voting method to obtain the combined road surface type identification result of each sensor; the final road surface type identification result generation module 203 is used According to the Markov random field model, the combined road surface type recognition results of multiple sensors are optimized to generate the final road surface type recognition results.

[0039] The multi-sensor fusion road surface type identification device of the present invention obta...

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Abstract

The invention provides a multi-sensor fusion road surface type identification method and device. The multi-sensor fusion road surface type identification method comprises steps as follows: road surface type identification results of multiple sensors fixed on a vehicle are acquired; the road surface type identification results of all sensors are subjected to merge processing, and a merged road surface type identification result of each sensor is acquired; and the merged road surface type identification results of the multiple sensors are optimized according to a Markov random field model so as to generate a final road surface type identification result. Compared with the prior art, the multi-sensor fusion road surface type identification method and device improve the accuracy rate of road surface identification.

Description

technical field [0001] The invention relates to a road surface type recognition technology during vehicle driving, in particular to a multi-sensor fusion road surface type recognition method and device. Background technique [0002] With the continuous improvement of people's requirements for safety and comfort in the process of driving, the road surface type recognition technology has highlighted its particularly important role and significance. In the existing technology, laser radar technology is mostly used to improve the range and accuracy of road surface recognition. The laser radar installed in front of the vehicle, on the roof or at a certain part of the vehicle bottom scans the road surface on which the vehicle is driving, and then processes and extracts the data. The spatial frequency characteristics of the road surface can complete the identification process of the road surface type. [0003] In the process of realizing the above invention, the inventors found at...

Claims

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Application Information

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IPC IPC(8): G06K9/62
CPCG06F18/25G06F18/295
Inventor 王世峰孟颖张雷刘伟
Owner 长光驰宇科技(长春)有限公司