High-speed image acquisition and processing system

Abstract

The present invention provides a high-speed image acquisition and processing system. The system comprises a beam splitter prism, two CCD cameras, a camera adjusting device and an FPGA. The beam splitter prism is used for splitting incident light into two sub light beams to respectively enter the two CCD cameras. The camera adjusting device is used for adjusting the spatial positions of the two CCD cameras. The FPGA includes a camera timing control unit, an image synthesis unit and an image pre-processing unit. The camera timing control unit is used for sending pulse control signals, via two triggering wires, to the two CCD cameras to control the two CCD cameras to be triggered by time and make exposures at different times for acquiring images. The image synthesis unit combines the images of the two CCD cameras into a continuous image. The image pre-processing unit is used to pre-process the image. The high-speed image acquisition and processing system of the present invention achieves high-frequency image acquisition with low-frequency image sensors, so that the device cost is significantly lowered, the image collection acquisition is increased, and the system is particularly suitable for image acquisition and processing of high-speed moving object measurement.

Description

Technical field [0001] The invention belongs to the technical field of image acquisition and processing, and more specifically, relates to a high-speed image acquisition and processing system for high-speed moving object measurement. Background technique [0002] In the prior art, for tracking and shooting high-speed moving objects, a high-speed image acquisition and processing device with a higher image acquisition frame rate is usually used. The high-speed image acquisition and processing device can clearly and completely record the movement process, and overcome the defects of blur, ghosting, and tailing phenomenon of ordinary cameras. It is widely used to record and analyze the process of movement changes, rapid vibrations, and small deformations of objects. When used to shoot high-speed moving objects, the device is required to have a very high image acquisition frequency, and sometimes even needs to reach a nanosecond interval frequency. However, the small increase in the ...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to overcome the defects and deficiencies of the existing high-speed image acquisition and processing devices, such as low-frequency image sensors that cannot be used for tracking and shooting of high-speed moving objects, high-frequency sensors that are extremely expensive, and limited use, etc., and provide a high-speed The image acquisition and processing system uses a light splitting device to divide the incident light into two channels of CCD cameras, and uses FPGA output control signals to control the two channels of cameras to trigger and time-shared exposure to achieve high-frequency image acquisition with low-frequency image sensors. Significantly reduces the cost of the device and increases the frequency of image acquisition, especially suitable for image acquisition and processing of high-speed moving object measurement

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