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Selective Data Pruning-Based Compression Using High-Order Edge-Directed Interpolation

8 years 7 months ago
Selective Data Pruning-Based Compression Using High-Order Edge-Directed Interpolation
—This paper proposes a selective data pruning-based compression scheme to improve the rate-distortion relation of compressed images and video sequences. The original frames are pruned to a smaller size before compression. After decoding, they are interpolated back to their original size by an edge-directed interpolation method. The data pruning phase is optimized to obtain the minimal distortion in the interpolation phase. Furthermore, a novel high-order interpolation is proposed to adapt the interpolation to several edge directions in the current frame. This high-order filtering uses more surrounding pixels in the frame than the fourth-order edge-directed method and it is more robust. The algorithm is also considered for multiframe-based interpolation by using spatio-temporally surrounding pixels coming from the previous frame. Simulation results are shown for both image interpolation and coding applications to validate the effectiveness of the proposed methods.
Dung Trung Vo, Joel Solé, Peng Yin, Cristin
Added 31 Jan 2011
Updated 31 Jan 2011
Type Journal
Year 2010
Where TIP
Authors Dung Trung Vo, Joel Solé, Peng Yin, Cristina Gomila, Truong Q. Nguyen
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