KR20060130609A - 비디오 홀로그래피 장치 및 방법 - Google Patents
비디오 홀로그래피 장치 및 방법 Download PDFInfo
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- KR20060130609A KR20060130609A KR1020067014332A KR20067014332A KR20060130609A KR 20060130609 A KR20060130609 A KR 20060130609A KR 1020067014332 A KR1020067014332 A KR 1020067014332A KR 20067014332 A KR20067014332 A KR 20067014332A KR 20060130609 A KR20060130609 A KR 20060130609A
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Abstract
Description
Claims (26)
- 홀로그래피로 생성되는, 복수의 비디오 프레임들을 포함하는 비디오 이미지를 디스플레이하는 방법에 있어서, 각 프레임 주기 동안에 각 순차적인 복수의 홀로그램들을 제공하는 단계와, 그리고 재생 필드의 뷰잉(viewing)을 위해 상기 복수의 비디오 프레임들의 홀로그램들을 디스플레이하는 단계를 포함하며, 이에 의해 각 프레임의 잡음 분산은 상기 복수의 홀로그램들에 걸쳐 평균함으로써 감소되는 것을 특징으로 하는 홀로그래피로 생성되는 비디오 이미지 디스플레이 방법.
- 제 1항에 있어서, 상기 제공 단계는 하나의 계산적으로 강화된 단계를 갖는 알고리즘을 구현함으로써 각 홀로그램을 생성하는 단계를 포함하는 것을 특징으로 하는 홀로그래피로 생성되는 비디오 이미지 디스플레이 방법.
- 제 2항에 있어서, 상기 하나의 단계는 퓨리에 변환 단계인 것을 특징으로 하는 홀로그래피로 생성되는 비디오 이미지 디스플레이 방법.
- 제 3항에 있어서, 상기 알고리즘은, 각 상기 복수의 픽셀레이트(pixellated) 홀로그램들을 위하여:a)원하는 픽셀의 진폭과 일치하는 진폭 및 동일하게 분포된 균일한 랜덤 위상을 갖는 제 1 데이터를 형성하며;b)상기 제 1 데이터를 역 퓨리에 변환하여 제 2 데이터를 제공하며;c)상기 제 2 데이터를 복소 평면에서 실수 방향으로 충분히 이동하여, 각 데이터 세트의 위상이 작은 제 3 데이터 세트를 형성하며;d)상기 제 3 데이터 세트의 크기를 제 4 데이터 세트로서 형성하며; 그리고e)상기 제 4 데이터 세트를 바이너라이즈(binarise)하여 상기 홀로그램으로서 디스플레이를 위한 제 5 데이터 세트를 형성하는 것을 특징으로 하는 홀로그래피로 생성되는 비디오 이미지 디스플레이 방법.
- 제 4항에 있어서, 상기 바이너라이즈 단계는 상기 제 4 데이터 세트의 대략 중위수(median)에서 드레쉬홀드(threshold) 단계를 포함하며, 이에 의해 상기 제 5 데이터 세트는 dc 밸런스(dc balance) 및 낮은 재구성 에러를 갖는 것을 특징으로 하는 홀로그래피로 생성되는 비디오 이미지 디스플레이 방법.
- 제 4항 또는 제 5항에 있어서, 상기 디스플레이 디바이스는 0 및 π/2의 위상 편이들을 부과하는 픽셀레이트 위상 마스크를 갖는 공간 광 변조기를 포함하며, 여기서 상기 알고리즘은 4-위상 변조를 생성하며, 각 픽셀은 값들[1,j,-1,-j] 중 하나를 갖는 것을 특징으로 하는 홀로그래피로 생성되는 비디오 이미지 디스플레이 방법.
- 제 6항에 있어서, 상기 위상 마스크의 픽셀 값들은 공간적으로 랜덤화되는 것을 특징으로 하는 홀로그래피로 생성되는 비디오 이미지 디스플레이 방법.
- 제 7항에 있어서, 단계 b)는 역 퓨리에 변환함과 아울러 상기 위상 마스크 값들을 상기 제 1 데이터에 적용하여 상기 제 2 데이터를 제공하는 단계를 포함하는 것을 특징으로 하는 홀로그래피로 생성되는 비디오 이미지 디스플레이 방법.
- 선행하는 청구항들 중 어느 한 항에 있어서, 상기 이미지는 2차원 이미지인 것을 특징으로 하는 홀로그래피로 생성되는 비디오 이미지 디스플레이 방법.
- 제 3항 또는 제 3항의 종속 청구항들 중 한 항에 있어서, 상기 역 퓨리에 변환된 제 1 데이터의 실수부 및 허수부를 형성하여 2개의 제 2 데이터 세트들을 형성하며, 이에 의해 퓨리에 변환 단계마다 2개의 홀로그램이 생성되는 단계를 더 포함하는 것을 특징으로 하는 홀로그래피로 생성되는 비디오 이미지 디스플레이 방법.
- 홀로그래피로 생성되는, 복수의 비디오 프레임들을 갖는 비디오 이미지를 디스플레이하는 장치에 있어서, 각 프레임 주기 동안 각 순차적인 복수의 홀로그램들을 제공하는 프로세싱 수단과, 그리고 각 프레임의 상기 순차적인 복수의 홀로그램들을 수신함과 아울러 재생 필드의 뷰잉을 위해 상기 비디오 이미지의 복수의 비디오 프레임들의 홀로그램들을 디스플레이하는 디스플레이 디바이스를 구비하며, 이 에 의해 각 프레임의 잡음 분산은 상기 복수의 홀로그램들에 걸쳐 평균함으로써 감소되는 것을 특징으로 하는 홀로그래피로 생성되는 비디오 이미지를 디스플레이하는 장치.
- 제 11항에 있어서, 상기 프로세싱 수단은 하나의 계산적으로 강화된 단계를 갖는 알고리즘을 구현함으로써 각 상기 홀로그램을 생성하는 것을 특징으로 하는 홀로그래피로 생성되는 비디오 이미지를 디스플레이하는 장치.
- 제 12항에 있어서, 상기 하나의 단계는 퓨리에 변환 단계인 것을 특징으로 하는 홀로그래피로 생성되는 비디오 이미지를 디스플레이하는 장치.
- 제 12항에 있어서, 상기 알고리즘은, 각 상기 복수의 픽셀레이트 홀로그램들을 위하여:a)원하는 픽셀의 진폭과 일치하는 진폭을 갖는 제 1 데이터를 형성하며;b)상기 제 1 데이터를 역 퓨리에 변환하여 제 2 데이터를 제공하며;c)상기 제 2 데이터를 복소 평면에서 실수 방향으로 충분히 이동하여, 각 데이터 세트의 위상이 작은 제 3 데이터 세트를 형성하며;d)상기 제 3 데이터 세트의 크기를 제 4 데이터 세트로서 형성하며; 그리고e)상기 제 4 데이터 세트를 바이너라이즈하여 상기 홀로그램으로서 디스플레이를 위한 제 5 데이터 세트를 형성하는 것을 특징으로 하는 홀로그래피로 생성되 는 비디오 이미지를 디스플레이하는 장치.
- 제 14항에 있어서, 상기 바이너라이즈 단계는 상기 제 4 데이터 세트의 대략 중위수에서 드레쉬홀드하는 단계를 포함하며, 이에 의해 상기 제 5 데이터 세트는 dc 밸랜스와 낮은 재구성 에러를 갖는 것을 특징으로 하는 홀로그래피로 생성되는 비디오 이미지를 디스플레이하는 장치.
- 제 11항, 제 12항 또는 제 13항 중 어느 한 항에 있어서, 상기 디스플레이 디바이스는 0 및 π/2의 위상 편이들을 부과하는 픽셀레이트 위상 마스크를 갖는 공간 광 변조기를 포함하며, 여기서 상기 알고리즘은 4-위상 홀로그램을 생성하며, 각 픽셀은 값들[1,j,-1,-j] 중 하나를 갖는 것을 특징으로 하는 홀로그래피로 생성되는 비디오 이미지를 디스플레이하는 장치.
- 제 16항에 있어서, 상기 위상 마스크의 픽셀 값들은 공간적으로 랜덤화되는 것을 특징으로 하는 홀로그래피로 생성되는 비디오 이미지를 디스플레이하는 장치.
- 제 17항에 있어서, 단계 b)는 역 퓨리에 변환함과 아울러 상기 위상 마스크 값들을 상기 제 1 데이터에 적용하여 상기 제 2 데이터를 제공하는 단계를 포함하는 것을 특징으로 하는 홀로그래피로 생성되는 비디오 이미지를 디스플레이하는 장치.
- 제 14항 또는 제 14항의 종속 청구항에 있어서, 상기 역 퓨리에 변환된 제 1 데이터의 실수부 및 허수부를 형성하여 2개의 제 2 데이터 세트들을 형성하며, 이에 의해 퓨리에 변환 단계마다 2개의 홀로그램이 생성되는 단계를 더 포함하는 것을 특징으로 하는 홀로그래피로 생성되는 비디오 이미지를 디스플레이하는 장치.
- 픽셀레이트 홀로그램들을 생성하는 방법에 있어서,제 1 데이터 세트를 형성하는 단계와, 여기서 상기 제 1 데이터 세트의 멤버들은 각 원하는 픽셀들의 진폭들에 일치하는 각 진폭들을 가지며;상기 제 1 데이터 세트에 역 퓨리에 변환을 수행하여 제 2 데이터 세트를 제공하는 단계와;상기 제 2 데이터 세트를 복소 평면에서 실수 방향으로 충분히 이동하여, 각 데이터 점의 위상이 작은 제 3 데이터 세트를 형성하는 단계와;상기 제 3 데이터 세트의 크기를 제 4 데이터 세트로서 형성하는 단계와; 그리고상기 제 4 데이터 세트를 바이너라이즈하여 상기 홀로그램으로서 디스플레이하기 위한 제 5 데이터 세트를 형성하는 단계를 포함하는 것을 특징으로 하는 픽셀레이트 홀로그램들을 생성하는 방법.
- 제 20항에 있어서, 상기 바이너라이즈 단계는 상기 제 4 데이터 세트의 대략 중위수에서 드레쉬홀드하는 단계를 포함하며, 이에 의해 상기 제 5 데이터 세트는 dc 밸랜스와 낮은 재구성 에러를 갖는 것을 특징으로 하는 픽셀레이트 홀로그램들을 생성하는 방법.
- 제 20항 또는 제 21항에 있어서, 상기 디스플레이 디바이스는 0 및 π/2의 위상 편이들을 부과하는 픽셀레이트 위상 마스크를 갖는 공간 광 변조기를 포함하며, 여기서 상기 알고리즘은 4-위상 홀로그램을 생성하며, 각 픽셀은 값들[1,j,-1,-j] 중 하나를 갖는 것을 특징으로 하는 픽셀레이트 홀로그램들을 생성하는 방법.
- 제 20항에 있어서, 상기 위상 마스크의 픽셀 값들은 공간적으로 랜덤화되는 것을 특징으로 하는 픽셀레이트 홀로그램들을 생성하는 방법.
- 제 20항 또는 제 21항에 있어서, 상기 위상 마스크 값들을 상기 제 1 데이터에 적용하여 상기 제 2 데이터를 제공하는 단계를 더 포함하는 것을 특징으로 하는 픽셀레이트 홀로그램들을 생성하는 방법.
- 제 20항 내지 제 24항 중 어느 한 항에 있어서, 상기 이미지는 2차원 이미지인 것을 특징으로 하는 픽셀레이트 홀로그램들을 생성하는 방법.
- 제 20항 내지 제 25항 중 어느 한 항에 있어서, 상기 역 퓨리에 변환된 제 1 데이터의 실수부 및 허수부를 형성하여 2개의 제 2 데이터 세트들을 형성하며, 이에 의해 퓨리에 변환 단계마다 2개의 홀로그램이 생성되는 단계를 더 포함하는 것을 특징으로 하는 픽셀레이트 홀로그램들을 생성하는 방법.
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| PCT/GB2004/005253 WO2005059660A2 (en) | 2003-12-15 | 2004-12-15 | Video holographic apparatus and method |
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| KR101500845B1 (ko) * | 2013-07-22 | 2015-03-10 | 경희대학교 산학협력단 | 위상 변이 마스크를 이용하는 디지털 홀로그래픽 영상 표시 장치 |
| KR20190008568A (ko) * | 2016-05-18 | 2019-01-24 | 시리얼 테크놀로지즈 에스.에이. | 홀로그램을 생성하기 위한 방법 |
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| US8654048B2 (en) | 2014-02-18 |
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| US8072488B2 (en) | 2011-12-06 |
| JP4795249B2 (ja) | 2011-10-19 |
| KR101204968B1 (ko) | 2012-11-26 |
| CN100595698C (zh) | 2010-03-24 |
| WO2005059660A3 (en) | 2006-02-02 |
| EP1702243A2 (en) | 2006-09-20 |
| WO2005059881A3 (en) | 2005-10-27 |
| GB0329012D0 (en) | 2004-01-14 |
| JP2007520841A (ja) | 2007-07-26 |
| JP2007523359A (ja) | 2007-08-16 |
| US20120105580A1 (en) | 2012-05-03 |
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