複数枚PAL画像を用いたパノラマ展開画像の高精細化

概要

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Video surveillance using intelligent camera system is widely used in many areas such as traffic control, driving assistance and surgery. But, image acquisition of large viewing field for video surveillance make unfeasible use of multiple camera system or mechanically controlled cameras. To solve this problem, omnidirectional camera system using panoramic annular lens may be used with many advantages such as compactness and unnecessary calibration. Nevertheless, low spatial resolution of angle of elevation for vertical direction of captured image using PAL may incur drawbacks such as quality degradation for image after panoramic expansion. To overcome these disadvantages, the high quality panoramic image generation method is required. Therefore, we propose the high quality panoramic image generation method using multiple panoramic annular lens images. By synthesizing multiple PAL images at different zoom rates, we can obtain fine quality panoramic image.