Optical polarization information model construction method and device based on dynamic vision sensor

Abstract

The invention relates to the technical field of bionics in sensor models, and provides an optical polarization information model construction method and device based on a dynamic vision sensor. The model construction method comprises the following steps: S1, acquiring scene polarized light intensity distributions in four directions which respectively form included angles of 0 degree, 45 degrees, 90 degrees and 135 degrees with the horizontal direction, and inputting the scene polarized light intensity distributions in the four directions into a dynamic visual sensor; s2, the dynamic vision sensor outputs event flow information in four polarization directions; and S3, constructing a model through the event flow information. By acquiring the polarization information of the event stream, shadow interference which is difficult to distinguish in the original event stream can be directly removed, and meanwhile, the polarization information of a high-dynamic scene can be acquired at a high speed by combining the characteristics of high time resolution and high dynamic range of the dynamic vision sensor.

Description

technical field [0001] The invention relates to the field of bionic technology in sensor models, in particular to a method and device for constructing an optical polarization information model based on a dynamic visual sensor. Background technique [0002] With the continuous development of machine vision, the real-time requirements for image acquisition, processing, recognition and other processes are getting higher and higher. Traditional frame cameras are limited by software and hardware conditions, and the frame rate is generally 15 to 200fps, which will cause motion blur in high-speed moving scenes. At the same time, overexposure and underexposure will occur in high dynamic working scenes, and some details of the scene will be lost. The dynamic visual sensor is a new type of biological visual sensor. The dynamic visual sensor detects the event brightness change of each pixel, and asynchronously outputs the pixel address event stream data when the brightness change exce...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and device for constructing an optical polarization information model based on a dynamic visual sensor, which is used to solve the problem that the dynamic visual sensor is susceptible to changes in lighting conditions, Defects of information interference such as shadows, so as to realize event flow shadow removal and eliminate interference for subsequent applications

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