Synthesis of arbitrary viewpoint image from images of multiple weakly calibrated camera images using all in-focus rendering method

Yutaka Matsumura; Yuji Sakamoto

doi:10.1117/12.767041

25 February 2008 Synthesis of arbitrary viewpoint image from images of multiple weakly calibrated camera images using all in-focus rendering method

Yutaka Matsumura, Yuji Sakamoto

Author Affiliations +

Proceedings Volume 6805, Three-Dimensional Image Capture and Applications 2008; 680510 (2008) https://doi.org/10.1117/12.767041
Event: Electronic Imaging, 2008, San Jose, California, United States

Abstract

We describe a method that synthesizes a high-quality arbitrary-viewpoint image from multiple weakly-calibrated cameras. We reconstructed the approximate shape of the object reconstructed by the shape from silhouette method on a projective grid space(PGS). However, the distortion is caused in the synthesized image by the difference with the actual object and the approximate shape. In particular, the distortion is caused by a concave region. Our method synthesizes the arbitrary-viewpoint image with a little distortion by revising a depthmap obtained from the approximate shape. The depthmap is revised by using the all in-focus rendering method that makes light field rendering expand. When all camera parameters were uncalibrated, we could not apply this rendering method. Our method enabled applying uncalibrated cameras using the all in-focus rendering method by calculating each camera parameter on the PGS. We demonstrate the effectiveness of the method with arbitrary-viewpoint images and real images that were taken from multiple uncalibrated cameras.

Citation Download Citation

Yutaka Matsumura and Yuji Sakamoto "Synthesis of arbitrary viewpoint image from images of multiple weakly calibrated camera images using all in-focus rendering method", Proc. SPIE 6805, Three-Dimensional Image Capture and Applications 2008, 680510 (25 February 2008); https://doi.org/10.1117/12.767041

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KEYWORDS

Cameras

Calibration

Distortion

Image quality

Imaging systems

3D modeling

3D image processing

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