스타워즈의 레아 공주 홀로그램을 통해 홀로그램이 대중적으로 소개된 이후 40여 년이 지났지만 영화에서 묘사된 장면은 아직 실현되지 못하고 있다. 본 기술기고에서는 이러한 홀로그램 영상서비스를 실현하기 위한 여러 가지 요소기술들 중 실제 환경 또는 사람의 3차원 정보를 직접획득한 컨텐츠 확보를 위한 자가간섭 홀로그래피 기술을 이용한 자연광 기반 홀로그램 직접획득 기술과 소형, 저전력화가 가능한 실시간 홀로그램 하드웨어 생성 기술인 FPGA 기반 홀로그래픽 프로세서를 이용한 실시간 CGH 하드웨어 생성 기술의 연구 동향에 대해 소개한다.
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