In addition to the texture, multiview video employees the utilization of depth coding for the reconstruction of 3D video and Free viewpoint video. Standing on some texture-depth correlations, a number of methods in literature reuses texture motion vector for the corresponding depth coding to reduce encoding time by avoiding costly motion estimation process. However, texture similarity metric is not always equivalent to the corresponding depth similarity metric especially at edge levels. Since their approaches could not explicitly detect and encode acute edge motions of depth objects, eventually, could not reach the similar or improved rate-distortion (RD) performance against High Efficiency Video Coding (HEVC) reference test model (HM). With a view to more accurate motion detection and modeling, the proposed technique exploits an extra Pattern Mode comprising a group of pattern templates (GPTs) with different rectangular and non-rectangular object shapes and edges compared to the existing HEVC block partitioning modes. Selecting an extra mode i.e., the Pattern mode, it can avoid further exploration of modes at next depth levels, thereby reducing encoding time by avoiding further branching. Moreover, the proposed Pattern Mode only encodes the motion areas and skips the background areas. The experimental results show that the proposed technique could save 30% encoding time and improve average 0.1dB Bjontegard Delta peak signal-to-noise ratio (BD-PSNR) compared to the HM.
|Title of host publication||IEEE International Conference on Multimedia and Expo Workshops (ICMEW 2016) (Workshop on Emerging Multimedia Systems and Application|
|Subtitle of host publication||Multimedia Big Data Processing and Analytics)|
|Place of Publication||USA|
|Number of pages||6|
|Publication status||Published - 2016|
|Event||2016 IEEE International Conference on Multimedia and Expo : ICME 2016 - The Westin Seattle, Seattle, United States|
Duration: 11 Jul 2016 → 15 Jul 2016
|Conference||2016 IEEE International Conference on Multimedia and Expo|
|Period||11/07/16 → 15/07/16|
Podder, P., Paul, M., & Murshed, M. (2016). A novel depth edge prioritization based coding technique to boost-UP HEVC performance. In IEEE International Conference on Multimedia and Expo Workshops (ICMEW 2016) (Workshop on Emerging Multimedia Systems and Application: Multimedia Big Data Processing and Analytics) (pp. 1-6). IEEE.