Three dimensional object recognition with rotation-invariant

Jing Lv; Xianyu Su

doi:10.1117/12.668308

20 January 2006 Three dimensional object recognition with rotation-invariant

Jing Lv, Xianyu Su

Proceedings Volume 6027, ICO20: Optical Information Processing; 60272Y (2006) https://doi.org/10.1117/12.668308
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

An automatic method for rotation-invariant three-dimensional (3-D) object recognition is proposed. The method is based on the use of 3-D information contained in the deformed fringe pattern obtained when a grating is projected onto an object's surface. Since the deformed fringe pattern contains the height information of object, the method has the characteristic of intrinsic 3-D recognition. The rotation invariance is achieved by using the multi-channel phase-only filter. The filter is composed of deformed fringe patterns of the same object at different angle. The proposed method can be optically implemented by means of VanderLugt optical correlator. Experimental results show the utility of the proposed method and its ability to estimate the rotational angle of the objects.

Citation Download Citation

Jing Lv and Xianyu Su "Three dimensional object recognition with rotation-invariant", Proc. SPIE 6027, ICO20: Optical Information Processing, 60272Y (20 January 2006); https://doi.org/10.1117/12.668308

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