Auto-Read Photoelectric Autocollimator Based on DSP and Area Array Imaging Sensors

Qi Hu; Yuan Yuan Yang; Peng Fei Gao; Wei Jun Wu

doi:10.4028/www.scientific.net/AMR.301-303.1545

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 301-303Auto-Read Photoelectric Autocollimator Based on...

Auto-Read Photoelectric Autocollimator Based on DSP and Area Array Imaging Sensors

Abstract:

The paper explains an auto-read photoelectric autocollimator based on DSP and area array imaging sensors. The working principles, hardware and software of the design is interpreted. This equipment is able to conduct precise two-dimensional measurement. The embedded core Blackfin DSP BF549 is used in the device to acquire consecutive video, help store them and process the image datas. TFT screen is adopted to display the processed video results at real time. Auto-read tracking algorithm is a combined method of image interframe difference and background difference. Thus the moving target is detected in the static background. Then according to the position of the moving measuring mark calculate the angular displacement.

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Periodical:

Advanced Materials Research (Volumes 301-303)

Pages:

1545-1551

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.301-303.1545

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Online since:

July 2011

Authors:

Qi Hu, Yuan Yuan Yang, Peng Fei Gao, Wei Jun Wu

Keywords:

Area Array Imaging Sensors, Auto-Read, Digital Signal Processor (DSP), Photoelectric Autocollimator

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