ICTACT Journal on Image and Video Processing

Gaoyan Lv ¹, Yongping Zhang ², Fanzhi Kong ¹, Zhongkun He ²

Affiliations
1 School of Medical Information Engineering, Jining Medical University, CN
2 School of Electronic and Information Engineering, Ningbo University of Technology, CN

Abstract

In this work, a robust watermarking algorithm is presented for video copyright protection. The algorithm is based on hybrid transforms using the combination of DWT and DCT. In the scheme, the luminance component of the key frames is firstly decomposed by a DWT, and then the approximation sub-band in the wavelet domain is selected on which DCT is applied. Following that, the watermark information which is sorted by the pseudo-random and encoded by Turbo codes is embedded into the DCT domain. The experimental results show that the proposed algorithm not only has better invisibility, but also has better robustness to a variety of common attacks.

Keywords

Video Watermarking, Turbo Codes, DWT, DCT.

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Zhongkun He ¹, Yongping Zhang ¹, Dechun Zheng ¹

Affiliations
1 School of Electronic and Information Engineering, Ningbo University of Technology, CN

Abstract

Video segmentation is the basis for content-based video retrieval, object recognition, object tracking, and video compression. This paper proposes a kind of novel and easy spatial-temporal LBP coding method, using the spatial-temporal 2 × 2 × 2 neighborhood clique to encode the changes in a video. Based on the coding method, a scheme of video segmentation is developed. Compared to the traditional segmentation method, its distinguished advantage is that it does not need to construct the background model and is simple in computation. Experimental results indicate that this new algorithm can give satisfying segmentation results.

Keywords

Video Segmentation, Local Binary Patterns, Change Detections, Morphological Filters.

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