Fast inter mode decision based on textural segmentation and correlations for multiview video coding

Fast Mode Decision for Multiview Video Coding Based on Just Noticeable Distortion Profile

“…Besides, in MVC, odd views not only need to perform ME, but also DE. Although the process of DE occupies a small proportion, the computation time consumed by it takes up 50 % [16]. In Table 2, we can see that 18.62 % MBs choose DE.…”

“…In [1,8,9], a fast ME and DE algorithm was proposed based on motion homogeneity, which is measured by motion vector (MV) among the spatially neighboring macroblocks (MBs) and inter-view corresponding MBs. In order to fully exploit information of inter-view, some researchers proposed an early mode termination algorithm by investigating the coding information of neighboring views, including mode correlation, motion, texture and rate-distortion (RD) cost [3,10,15,16]. Specifically, thresholds derived from mode, MV and RD cost correlations of neighboring views are utilized to make an early mode decision.…”

An Adaptive Inter Mode Decision for Multiview Video Coding

“…The mode decision algorithm in [9] segments each picture into low, medium, high textural regions by using Intra RD cost and its correlation between views, then the region type of MB is used for the early decision of Skip mode, the selection of disparity estimation, and the reduction of Inter8x8 mode estimation. However, the correlation between textural region type and Inter mode sizes haven't been fully studied.…”

“…However, its RD performance for video scenes with high motion and complicated background is not very well. A fast Inter mode decision based on textural segmentation and correlations has been proposed in our previous work [9]. It can reduce the complexity effectively with maintaining high RD performance.…”

“…It employs the textural region type, motion homogenization, and RD costs to reduce Inter modes estimation. First, the selection of Inter modes is determined by using the textural region type, which is calculated by employing the textural segmentation technique in [9]. Second, the estimation of small size Inter modes is decided based on the motion homogenization of MB, which is predicted by utilizing motion estimation results of Inter16x16 mode.…”