Abstract

The Holoimage technique can substantially reduce three-dimensional (3D) shape data sizes by converting the data into regular 24-bit 2D images. A dithering-based compression algorithm was recently proposed to further reduce the data size by only utilizing three bits to represent 3D shape data. However, our research finds that the recovery accuracy of the dithering-based algorithm is not very high due to the loss of information in the dithering process. In addition, we find that the final 3D recovery accuracy is highly related to the phase information. In this paper, to address the low accuracy problem, we propose two different phase-correction methods to store the phase-error information and retrieve the absolute phase with higher accuracy. Both methods can provide recovered 3D results with much better quality. Experimental results are presented to verify the performance of the proposed methods.

© 2015 Optical Society of America

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