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View all- Unterweger AUhl A(2014)Slice groups for post-compression region of interest encryption in H.264/AVC and its scalable extensionImage Communication10.1016/j.image.2014.09.00729:10(1158-1170)Online publication date: 1-Nov-2014
Encrypting regions of interest in H.264/AVC and SVC bit streams after compression is a challenging task due to drift. In this paper, we assess whether the use of slice groups makes this task easier and what its expense in terms of bit rate overhead is. ...
A wavelet-based lossy-to-lossless image compression technique with polygon-shaped ROI function is proposed. Firstly, split and mergence algorithms are proposed to separate concave ROIs into smaller convexROIs. Secondly, row-order scan and an adaptive ...
A method is proposed to encode multiple regions of interest in the JPEG2000 image-coding framework. The algorithm is based on the rearrangement of packets in the code-stream to place the regions of interest before the background coefficients. In order ...
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