Analysis and Compensation of Rolling Shutter Effect

Due to the sequential-readout structure of complementary-metal-oxide semiconductor image sensor array, each scanline of the acquired image is exposed at a different time, resulting in the so-called electronic rolling shutter that induces geometric image distortion when the object or the video camera moves during image capture. In this paper, we propose an image processing technique using a planar motion model to address the problem. Unlike previous methods that involve complex 3-D feature correspondences, a simple approach to the analysis of inter- and intraframe distortions is presented. The high-resolution velocity estimates used for restoring the image are obtained by global motion estimation, Bézier curve fitting, and local motion estimation without resort to correspondence identification. Experimental results demonstrate the effectiveness of the algorithm.

• Type: Journal
• Year: 2008
• Where: IEEE Transactions on Image Processing
• Authors: Chia-Kai Liang, Li-Wen Chang, Homer Chen
• Keywords: Complementary Metal-oxide Semiconductor (CMOS) Sensor Array, Motion Analysis, Rolling Shutter