组内报告:HEVC Deblocking Filter

时间:2013年3月29日9:30

地点:309会议室

题目一:Exemplar-Based Image Inpainting Using Multiscale Graph Cuts

主讲人:李马丁

摘要:

This paper present a novel formulation of exemplar-based inpainting as a global energy optimization problem, written in terms of the offset map. The proposed energy function combines a data attachment term that ensures the continuity of reconstruction at the boundary of the inpainting domain with a smoothness term that ensures a visually coherent reconstruction inside the hole. This formulation is adapted to obtain a global minimum using the graph cuts algorithm. To reduce the computational complexity, this paper propose an efficient multiscale graph cuts algorithm. To compensate the loss of information at low resolution levels, they use a feature representation computed at the original image resolution. This permits alleviation of the ambiguity induced by comparing only color information when the image is represented at low resolution levels. The experiments show how well the proposed algorithm performs compared with other recent algorithms.

选自TIP 2013, vol.22, no.5

题目二:HEVC Deblocking Filter

主讲人:张奇

摘要:

This paper describes the in-loop deblocking filter used in the upcoming High Efficiency Video Coding (HEVC) standard to reduce visible artifacts at block boundaries. The deblocking filter performs detection of the artifacts at the coded block boundaries and attenuates them by applying a selected filter. Compared to the H.264/AVC deblocking filter, the HEVC deblocking filter has lower computational complexity and better parallel processing capabilities while still achieving significant reduction of the visual artifacts.

选自 TCSVT 2012 vol. 22 no.12

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