24 April 1992 Hybrid optical system for computing invariant moments of images
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Proceedings Volume 1731, Soviet-Chinese Joint Seminar on Holography and Optical Information Processing; (1992) https://doi.org/10.1117/12.140356
Event: Soviet-Chinese Joint Seminar on Holography and Optical Information Processing, 1991, Bishkek, Kirgizstan, Russian Federation
Abstract
A hybrid optical-digital system consisting of a holographic mask, two lenses, a CCD detector, and a microcomputer is presented to compute the invariant moments of images in real-time. Some English letters are tested as input patterns to extract invariant moments. Experimental results show that the invariant moments of a letter are largely independent of shift and rotation, and the moments are distinct with different letters.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yansong Chen, Shi-hai Zheng, Dehuan Li, "Hybrid optical system for computing invariant moments of images", Proc. SPIE 1731, Soviet-Chinese Joint Seminar on Holography and Optical Information Processing, (24 April 1992); doi: 10.1117/12.140356; https://doi.org/10.1117/12.140356
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