Hierarchical Modulation Scheme for 3D Stereoscopic Video Transmission Over Maritime Channel Environment

해양 채널 환경에서 3D 입체영상의 전송을 위한 계층변조 기법

  • You, Dongho (The Graduate School of NID Fusion Technology, Seoul National University of Science and Technology) ;
  • Lee, Seong Ro (Dept. of Information & Electronics Engineering, Mokpo National University) ;
  • Kim, Dong Ho (The Graduate School of NID Fusion Technology, Seoul National University of Science and Technology)
  • Received : 2015.04.02
  • Accepted : 2015.07.09
  • Published : 2015.07.31


Recently, Due to the rapid growth of broadcasting communication and video coding technologies, the demands for immersive media contents based on 3D stereoscopic video will increase steadily. And the demands must ultimately provide the contents for users which are in wireless channel such as vehicle, train, and ship. Thus, in this paper, we transmit the 3D stereoscopic video over the maritime Rician channel that direct wave is more dominant than reflective wave. Besides, we present unequel error protection (UEP) by applying hierarchical 4/16-QAM to V+D(Video plus Depth) format which can represent 3D stereoscopic video. We expect our system to provide seamless broadcasting service for users with poor reception condition.

최근 방송통신 및 비디오 코딩 기술의 급격한 발전으로 인해 3D 입체영상에 기반을 둔 실감 미디어 서비스의 요구는 지속적으로 증가하고 있다. 이러한 요구는 가정 내 고정된 3DTV 뿐만 아니라 개인 스마트기기, 자동차, 철도, 그리고 선박과 같이 자유롭게 이동하는 무선 채널 환경에서도 반드시 만족되어야 한다. 따라서 본 논문에서는 이러한 실감 미디어 서비스의 요구를 만족하기 위해 직접파가 반사파 보다 우세한 해양 라이시안 채널 환경을 고려하여 3D 입체영상을 전송한다. 또한 3D 입체영상은 일반적으로 V+D (Video plus Depth) 포맷을 통해 표현되기 때문에 이 포맷에 특성을 고려하여 계층 4/16-QAM을 적용한 비균등 오류보호 기법도 제안한다. 이는 아무리 수신 채널의 상태가 나쁜 선박이라도 중간에 끊어짐이 없이 방송서비스를 제공받을 수 있는 기술로 기대된다.



Supported by : 한국연구재단, 정보통신기술진흥센터


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