Stereo matching image processing by synthesized color and the characteristic area by the synthesized color

Akira Akiyama; Eiichiro Mutoh; Hideo Kumagai

doi:10.1117/12.2062432

12 September 2014 Stereo matching image processing by synthesized color and the characteristic area by the synthesized color

Akira Akiyama, Eiichiro Mutoh, Hideo Kumagai

Author Affiliations +

Proceedings Volume 9193, Novel Optical Systems Design and Optimization XVII; 91930E (2014) https://doi.org/10.1117/12.2062432
Event: SPIE Optical Engineering + Applications, 2014, San Diego, California, United States

Abstract

We have developed the stereo matching image processing by synthesized color and the corresponding area by the synthesized color for ranging the object and image recognition. The typical images from a pair of the stereo imagers may have some image disagreement each other due to the size change, missed place, appearance change and deformation of characteristic area. We constructed the synthesized color and corresponding color area with the same synthesized color to make the distinct stereo matching. We constructed the synthesized color and corresponding color area with the same synthesized color by the 3 steps. The first step is making binary edge image by differentiating the focused image from each imager and verifying that differentiated image has normal density of frequency distribution to find the threshold level of binary procedure. We used Daubechies wavelet transformation for the procedures of differentiating in this study. The second step is deriving the synthesized color by averaging color brightness between binary edge points with respect to horizontal direction and vertical direction alternatively. The averaging color procedure was done many times until the fluctuation of averaged color become negligible with respect to 256 levels in brightness. The third step is extracting area with same synthesized color by collecting the pixel of same synthesized color and grouping these pixel points by 4 directional connectivity relations. The matching areas for the stereo matching are determined by using synthesized color areas. The matching point is the center of gravity of each synthesized color area. The parallax between a pair of images is derived by the center of gravity of synthesized color area easily. The experiment of this stereo matching was done for the object of the soccer ball toy. From this experiment we showed that stereo matching by the synthesized color technique are simple and effective.

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Akira Akiyama, Eiichiro Mutoh, and Hideo Kumagai "Stereo matching image processing by synthesized color and the characteristic area by the synthesized color", Proc. SPIE 9193, Novel Optical Systems Design and Optimization XVII, 91930E (12 September 2014); https://doi.org/10.1117/12.2062432

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KEYWORDS

Binary data

Image processing

Imaging systems

Linear filtering

Cameras

Ranging

Wavelets

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