Homography-based motion detection in screen content

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Abstract

Screen content has some different characteristics from camera-captured content, such as large motion and repeating patterns which lead to low encoding speed and higher bit-rate. To cope with these problems, homography-based motion detection is proposed to better explore the temporal correlation in screen content. After detecting motion, the motion parameters are forwarded to JPEG encoder for motion compensated predictions. Therefore, it can improve the coding efficiency. Experimental results show the proposed algorithm achieves efficiency in terms of both encoding time and encoding complexity.

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Loan, T. T. K., Pham, X. Q., Nguyen, H. Q., Tri, N. D. T., Thai, N. Q., & Huh, E. N. (2015). Homography-based motion detection in screen content. Lecture Notes in Electrical Engineering, 373, 875–881. https://doi.org/10.1007/978-981-10-0281-6_122

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