DocumentCode :
604397
Title :
Application of linear CCD image processing on self-collimation measurement of angle
Author :
Liu Yusheng ; Su Wanxin ; Wang Chunxia ; Wang Min
Author_Institution :
Changchun Inst. of Opt., Fine Mech. & Phys., Changchun, China
fYear :
2012
fDate :
29-31 Dec. 2012
Firstpage :
558
Lastpage :
561
Abstract :
When the self-collimation angle measuring equipment is working in outside field, it will be affected by a variety of factors such as airflow, the stray light, the temperature and so on. The display value will be unstable and the system will get low measurement accuracy. This problem is on one hand due to the increasing noise which participates in imaging of linear CCD. On the other hand, the sampling images become jitter both in location and amplitude. According to these problems, we can reduce these interferences by using hardware filtering and software method combined with adaptive integration time, image superposition and weighted barycenter algorithm in grayscale. The software for the system is realized based on the highperformance DSP platform. Experiment results show that, after the realization of these methods, the angle measuring equipment has the advantages of high-speed, stability, getting better repeatability and the ability of anti-interference.
Keywords :
angular measurement; charge-coupled devices; digital signal processing chips; filtering theory; image sampling; integration; jitter; adaptive integration time; anti-interference; display value; grayscale; hardware filtering; high-performance DSP platform; image superposition; interference reduction; jitter; linear CCD image processing; measurement accuracy; sampling images; self-collimation angle measurement; self-collimation angle measuring equipment; software method; weighted barycenter algorithm; adaptive integration time; hardware filtering; image superposition; self-collimation; weighted barycenter algorithm in grayscale;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer Science and Network Technology (ICCSNT), 2012 2nd International Conference on
Conference_Location :
Changchun
Print_ISBN :
978-1-4673-2963-7
Type :
conf
DOI :
10.1109/ICCSNT.2012.6525999
Filename :
6525999
Link To Document :
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