High-speed complementary metal-oxide-semiconductor (CMOS) line scanning camera

Abstract

The invention discloses a high-speed CMOS line scanning camera. The camera comprises a line scanning CMOS photoelectric sensor, a field programmable gate array (FPGA), an output interface and a memory, wherein the line scanning CMOS photoelectric sensor is connected with the FPGA which is connected with the output interface and the memory respectively. Compared with the prior art, the line scanning CMOS sensor turns signal transmission from the sensor to the front end from the existing analog signal communication into digital signal communication, and therefore the contradiction between the high resolution and the high scanning speed is effectively solved; and simultaneously, the line scanning sensor has sufficient space on two sides of a photodiode, signal acquisition of the photodiode cannot be affected by an added digital signal circuit, and therefore high sensitivity and high signal-to-noise ratio are guaranteed. The FPGA can achieve pipeline data processing and high speed and parallel features of the FPGA are quite favorable to processing of high data rate. The camera can be applied to the machine vision field with high requirements for the resolution and the scanning speed.

Description

technical field [0001] The invention relates to a high-speed CMOS line scan camera. Background technique [0002] Traditional machine vision technology is mainly used in some dangerous working environments that are not suitable for manual work or occasions where artificial vision is difficult to meet the requirements; with the continuous development of technology, machine vision has now been widely used in industrial production, greatly improving the Production efficiency and reliability play an important role in the fields of working condition monitoring, finished product inspection and quality control. [0003] The line scan camera is the core component of machine vision, and it is the eye for obtaining information. With its advantages of high resolution and high scanning speed, line scan cameras have completely replaced area scan cameras in the fields of high-precision geometric measurement and high-speed online real-time inspection. [0004] With the continuous develop...

AI Technical Summary

Problems solved by technology

Since the existing line scan cameras use CCD sensors, which need to output information bit by bit under the control of a synchronous clock, high resolution and high scanning speed are contradictory. Most of the current solutions use multi-camera splicing. Processing, which will inevitably bring pressure on cost and back-end processing

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