Colorized linear CCD data acquisition system with automatic exposure control

Xiaofan Li; Xiubao Sui

doi:10.1117/12.2072469

21 November 2014 Colorized linear CCD data acquisition system with automatic exposure control

Xiaofan Li, Xiubao Sui

Proceedings Volume 9296, International Symposium on Optoelectronic Technology and Application 2014: Advanced Display Technology; Nonimaging Optics: Efficient Design for Illumination and Solar Concentration; 92960E (2014) https://doi.org/10.1117/12.2072469
Event: International Symposium on Optoelectronic Technology and Application 2014, 2014, Beijing, China

Abstract

Colorized linear cameras deliver superb color fidelity at the fastest line rates in the industrial inspection. It’s RGB trilinear sensor eliminates image artifacts by placing a separate row of pixels for each color on a single sensor. It’s advanced design minimizes distance between rows to minimize image artifacts due to synchronization. In this paper, the high-speed colorized linear CCD data acquisition system was designed take advantages of the linear CCD sensor μpd3728. The hardware and software design of the system based on FPGA is introduced and the design of the functional modules is performed. The all system is composed of CCD driver module, data buffering module, data processing module and computer interface module. The image data was transferred to computer by Camera link interface. The system which automatically adjusts the exposure time of linear CCD, is realized with a new method. The integral time of CCD can be controlled by the program. The method can automatically adjust the integration time for different illumination intensity under controlling of FPGA, and respond quickly to brightness changes. The data acquisition system is also offering programmable gains and offsets for each color. The quality of image can be improved after calibration in FPGA. The design has high expansibility and application value. It can be used in many application situations.

Citation Download Citation

Xiaofan Li and Xiubao Sui "Colorized linear CCD data acquisition system with automatic exposure control", Proc. SPIE 9296, International Symposium on Optoelectronic Technology and Application 2014: Advanced Display Technology; Nonimaging Optics: Efficient Design for Illumination and Solar Concentration, 92960E (21 November 2014); https://doi.org/10.1117/12.2072469

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