Hyo-Kak Kim

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Most of the algorithms developed for object detection employ a background-subtraction technique which requires heavy computation. In this paper, we present a fast background-subtraction technique which can be readily applied to many existing object detection algorithms. The proposed technique consists of three parts: persistent background-subtraction,(More)
This paper presents an improved motion vector (MV) prediction scheme in scalable video coding (SVC) to increase coding efficiency. In order to improve the accuracy of prediction, we adopt the spatio-temporal prediction. Experimental results show that the proposed method outperforms the conventional prediction methods.
This paper presents a improved POCS-based deblocking technique , based on the theory of the projection onto convex sets (POCS) to reduce the blocking artifacts in decoded images. We propose a new smoothness constraint set (SCS) and its projection operator in the wavelet transform (WT) domain to remove unnecessary high-frequency components caused by blocking(More)
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