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Lee J.,Realistic Broadcast Media Research Laboratory | Kim S.-H.,Realistic Broadcast Media Research Laboratory | Jeong S.Y.,Realistic Broadcast Media Research Laboratory | Choi J.S.,Realistic Broadcast Media Research Laboratory | And 3 more authors.
IEEE Transactions on Broadcasting | Year: 2015

In this paper, we demonstrate the structure and characteristics of the bandwidth-efficient stereoscopic 3-D broadcasting system entitled service compatible 3-D-TV using main and mobile hybrid delivery (SC-MMH), which enables the broadcasters to provide three different types of services (2-D fixed, mobile, and 3-D) by transmitting only the two legacy broadcast streams (2-D fixed and mobile). By combining the two existing broadcast networks, the proposed system provides high quality 3-D services, fully guarantees backward-compatibility with the legacy fixed/mobile 2-D receivers, and maximizes the channel efficiency. One major feature of the proposed system is bit-rate saving based on the video resolution asymmetry between the left and right eye views, also referred to as 'mixed-resolution.' Although it is well-known wisdom that the mixed-resolution stereoscopic videos are perceived close to the higher resolution based on the binocular rivalry suppression theory, the perceived quality also depends on the factors such as scale ratio, viewing distance, bit-rate distribution, and types of codecs. Therefore, we conducted the objective and subjective tests to measure the service quality of the proposed system and find the optimum bit-rate distribution points, and with the results, we demonstrate that SC-MMH can provide the satisfactory quality when the proper level of bit-rate is allocated to the mobile service. © 1963-12012 IEEE.


Lee J.,Realistic Broadcast Media Research Laboratory | Kim S.-H.,Realistic Broadcast Media Research Laboratory | Jeong S.,Realistic Broadcast Media Research Laboratory | Choi J.S.,Realistic Broadcast Media Research Laboratory | Kim J.,Realistic Broadcast Media Research Laboratory
International Conference on ICT Convergence | Year: 2013

In this paper, we propose a bandwidth-efficient stereoscopic 3D broadcasting system named Service Compatible 3D-TV using Main and Mobile Hybrid Delivery (SC-MMH), which incor-porates fixed and mobile broadcasting services to provide 3D service without allocating additional bandwidth. By combining two existing broadcast networks, the proposed system provides high quality 3D services, fully guarantees backward-compatibility with the legacy fixed/mobile 2D receivers, and maximizes the channel efficiency. System structure of the proposed system and the objective evaluation that we conducted to find the optimum bitrate distribution are presented in this paper. © 2013 IEEE.


Lee J.,Realistic Broadcast Media Research Laboratory | Kim S.-H.,Realistic Broadcast Media Research Laboratory | Jeong S.,Realistic Broadcast Media Research Laboratory | Choi J.S.,Realistic Broadcast Media Research Laboratory | Kim J.,Realistic Broadcast Media Research Laboratory
International Conference on ICT Convergence | Year: 2014

Various techniques have been developed for efficient compression of stereoscopic 3D videos. Mixed-resolution based approach is one representative bit-rate saving method based on the characteristics of human visual system that the mixed-resolution stereoscopic videos are perceived close to the higher resolution. However, when the difference between the left and right image resolutions is bigger than a certain threshold level, the perceived quality degradation of the 3D images occurs. In this work, we conducted the subjective quality assessments on the mixed-resolution 3D videos of SC-MMH, an ATSC 3D broadcasting system that saves bit-rate based on the aforementioned characteristics of human visual system, to find the optimum bit-rate distribution between left and right views. By analyzing the result, we also demonstrate that SC-MMH can provide the acceptable 3D services with the given bit-rate, 19.39Mbps of one 6MHz physical channel. © 2014 IEEE.

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