Hyo-Kak Kim

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This paper presents a new image stitching algorithm for mobile multimedia devices. In general, the stitched image obtained by optimal seam finding can avoid the ghost effects but sometimes experience the unconformity of the image structure and color differences near the transition region between images. To solve these problems, the proposed algorithm adopts(More)
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)
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.
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