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Jung K.-H.,Kookmin University | Bang M.-S.,Kookmin University | Kim S.-H.,Broadcasting and Telecommunication Media Research Laboratory | Choo H.-G.,Broadcasting and Telecommunication Media Research Laboratory | Kang D.-W.,Kookmin University
ETRI Journal | Year: 2014

This paper proposes a conditional replenishment algorithm (CRA) to improve the visual quality (where spatial resolutions of the left and right views are mismatched) of a hybrid stereoscopic 3DTV that is based on the ATSC-M/H standard. So as to generate an enhanced view, the CRA is to choose the better substitute among a disparity-compensated view with high quality and a simply interpolated view. The CRA generates a disparity map that includes modes and disparity vectors as additional information. It also employs a quad-tree structure with variable block size by considering the spatial correlation of disparity vectors. In addition, it takes advantage of the disparity map used in a previous frame to keep the amount of additional information as small as possible. The simulation results show that the proposed CRA can successfully improve the peak signal-to-noise ratio of a poor-quality view and consequently have a positive effect on the subjective quality of the resulting 3D view. © 2014 ETRI. Source


Yu C.,Broadcasting and Telecommunication Media Research Laboratory | Jo S.,Broadcasting and Telecommunication Media Research Laboratory | Jeong I.,Broadcasting and Telecommunication Media Research Laboratory | Ryu W.,Broadcasting and Telecommunication Media Research Laboratory
International Conference on ICT Convergence | Year: 2014

This paper presents the implementation for 3D space sensing and transmission technique. And also introduces tangible telepresence service through applying the technique. Because 3D space sensing and transmission technique is for performing augmented reality, we expect that it may be used in number of various applications to use augmented reality technology. © 2014 IEEE. Source


Lee A.,Broadcasting and Telecommunication Media Research Laboratory | Jun D.,Broadcasting and Telecommunication Media Research Laboratory | Kim J.,Broadcasting and Telecommunication Media Research Laboratory | Choi J.S.,Broadcasting and Telecommunication Media Research Laboratory
ETRI Journal | Year: 2014

High Efficiency Video Coding (HEVC) is the most recent video coding standard to achieve a higher coding performance than the previous H.264/AVC. In order to accomplish this improved coding performance, HEVC adopted several advanced coding tools; however, these cause heavy computational complexity. Similar to previous video coding standards, motion estimation (ME) of HEVC requires the most computational complexity; this is because ME is conducted for three inter prediction modes - namely, uniprediction in list 0, uniprediction in list 1, and biprediction. In this paper, we propose an efficient inter prediction mode (EIPM) decision method to reduce the complexity of ME. The proposed EIPM method computes the priority of all inter prediction modes and performs ME only on a selected inter prediction mode. Experimental results show that the proposed method reduces computational complexity arising from ME by up to 51.76% and achieves near similar coding performance compared to HEVC test model version 10.1. © 2014 ETRI. Source

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