Efficient Image Processing for Increased Resolution and Color Correctness of CMOS Image Sensors

This paper describes fast demosaicing methods to quadruple the resolution of a CMOS camera. The resulting increase in accuracy in camera calibration and object detection is important for local vision robots, especially those that use computer vision as their only source of information about the state of the world. The paper describes two methods for demosaicing: interpolation and variance demosaicing. A comparison of three sample views is shown to demonstrate the increased resolution and the difference between the interpolation and variance demosaicing methods. Both demosaicing methods work well. Variance demosaicing performs better around edges in the image, but is computationally more expensive.

Authors and Affiliations

1. Centre for Image Technology and Robotics, University of Auckland, Auckland, New Zealand

   Jacky Baltes

Editors and Affiliations

1. School of Engineering and Science, Interantional University Bremen, Campus Ring 1, 28759, Bremen, Germany

   Andreas Birk

2. Department of Technology, Örebro University, 70182, Örebro, Sweden

   Silvia Coradeschi

3. Department of Computer and Systems Engineering, Kobe University, Rokkodai, Nada, Kobe, 657-8501, Japan

   Satoshi Tadokoro

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© 2002 Springer-Verlag Berlin Heidelberg

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