A vision enhancement device and method for unmanned vehicles in extreme environments

Abstract

The invention relates to an unmanned vehicle vision enhancement device and method in extreme environments, belonging to the field of unmanned driving environment perception. The device includes: an image intensifying device, including a filter device, an image analysis unit and a fixing device; the filter device includes a circular polarizer with a rear seat frame, an outer ring gear, a motor drive unit, and is installed on the motor drive unit The gear; the motor drive unit controls the gear to drive the outer ring gear and the circular polarizer to rotate synchronously; the image analysis unit outputs the motor rotation angle and direction signals. The invention realizes the stepless adjustment of the filtering effect by controlling the rotation angle of the circular polarizer, uses the convolutional neural network model and the pre-trained weight parameters to analyze the image, determines the rotation angle and direction of the circular polarizer, and proposes a periodic The scanning method corrects for the position of the circular polarizer.

Description

technical field [0001] The invention belongs to the field of unmanned driving environment perception, and relates to a vision enhancement device and method for unmanned vehicles in extreme environments. Background technique [0002] Intelligent driving vehicles have developed rapidly in recent years. Advanced Driver Assistance Systems (ADAS) have been widely used in the automotive field, which can reduce traffic accidents, traffic jams and air pollution. Perfect detection of vehicles. With the vigorous development of computer vision object detection technology, the use of key feature information such as edges, shadows, and light and deep feature information of convolutional neural networks to detect vehicles enables intelligent transportation systems to solve some of the core challenges in vehicle detection. [0003] Light is a transverse wave whose propagation direction is perpendicular to the vibration direction. Natural light such as sunlight is unpolarized light, which ...

AI Technical Summary

Problems solved by technology

In actual application, the polarizer is in a state of reciprocating movement, resulting in unstable image quality

[0007] Again, this patent application only analyzes the maximum area of ​​the bright area or the number of non-circular bright areas in the region of interest of the image, and performs jump adjustment according to the preset threshold, which is applicable to few scenarios

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