그림 1. ERC interfere 데이터 세트를 이용한 복원 결과 (a) 2D Dice, (b) 2D Multi, (c) 3D Multi, (d) 3D Venus, (e) 3D Cat Fig. 1. Reconstruction result using ERC interfere data set (a) 2D Dice, (b) 2D Multi, (c) 3D Multi, (d) 3D Venus, (e) 3D Cat
그림 3. UBI EmergIMG 데이터 세트를 이용한 복원 결과 (a)우주 비행사, (b) 자동차, (c) 체스, (d) 해골 Fig. 3. Reconstruction result using UBI EmergIMG data set (a) Astronaut, (b) Car, (c) Chess, (d) Skull
그림 2. B-COM 데이터 세트를 이용한 복원 결과 (a) 발레1080p, (b) 브레이크댄서1080p, (c) 주사위1080p, (d) 피아노1080p Fig. 2. Reconstruction result using B-COM data set (a) Ballet1080p, (b) Breakdancers1080p, (c) Dices1080p, (d) Piano1080p
그림 4. 실험에 사용된 홀로그램의 히스토그램 (a) 2D 멀티의 실수 및 허수, (b) 3D 멀티의 실수 및 허수, (c) 주사위1080p RGB성분의 실수, (d) 주사위1080p RGB 성분의 허수 Fig. 4. Histograms of holograms used in the experiment; real and imaginary of (a) 2D Multi, (b) 3D Multi, (c) real of RGB in Dices1080p, (d) imaginary of RGB in Dices1080p
그림 5. 8×8 블록단위 DCT 에너지 계산 Fig. 5. 8×8 Block based DCT energy calculation
그림 6. 선별된 필터 계수 (a) Bi-Orthogonal 저역통과필터, (b) Bi-Orthogonal 고역통과필터, (c) Reverse Bi-Orthogonal 저역통과필터, (d) Reverse Bi-Orthogonal 고역통과필터 Fig. 6. Filter coefficient (a) Bi-Orthogonal Low pass filter, (b) Bi-Orthogonal high pass filter, (c) Reverse Bi-Orthogonal Low pass filter, (d) Reverse Bi-Orthogonal high pass filter
그림 7. 2 레벨 DWT 에너지 계산 Fig. 7. 2 Level DWT energy Calculation
그림 8. 균일 스칼라 양자화기 예시 Fig. 8. uniform scalar quantization example
그림 9. A-Law 방식의 비균일 양자화기 예시 (a) 압축기, (b) 신장기 Fig. 9. A-law non-uniform scalar quantization example (a) compressor (b) expander
그림 10. μ-Law방식의 비균일 양자화기 (a) 압축기 (b) 신장기 Fig. 10. μ-law non-uniform scalar quantization example (a) compressor (b) expander
그림 11. 홀로그램 부호화 및 복호화 순서도 (a) 2D Multi, 3D Multi, Dices1080p 단채널 (b) Dices1080p 다채널 Fig. 11. Hologram encoding and decoding flowchart (a) 2D Multi, 3D Multi, Dices1080p single channel (b) Dices1080p multi channel
그림 12. Bi-Orthogonal (1, 1) 필터의 에너지 집중도 Fig. 12. Bi-Orthogonal (1, 1) filter energy compaction
그림 13. Reverse Bi-Orthogonal (3, 3) 필터의 에너지 집중도 Fig. 13. Reverse Bi-Orthogonal (3, 3) filter energy compaction
그림 14. DCT 에너지 집중도 Fig. 14. DCT energy compaction
그림 15. Bi-Orthogonal(1, 1) 결과 (a) 2D Multi, (b) 3D Multi, (c) Dices1080p Fig. 15. Bi-Orthogonal (1, 1) results (a) 2D Multi, (b) 3D Multi, (c) Dices 1080p
그림 16. Reverse Bi-Orthogonal(3, 3) 결과 (a) 2D Multi, (b) 3D Multi,
그림 16. Reverse Bi-Orthogonal(3, 3) 결과 (a) 2D Multi, (b) 3D Multi, 그림 17. 64×64 블록 단위 DCT 결과 (a) 2D Multi, (b) 3D Multi, (c) Dices1080p Fig. 17. 64×64 block based DCT results (a) 2D Multi, (b) 3D Multi, (c) Dices 1080p(c) Dices1080p Fig. 16. Reverse Bi-Orthogonal (3, 3) results (a) 2D Multi, (b) 3D Multi, (c) Dices 1080p
그림 18. 양자화 된 Multi 2D를 복원한 홀로그램의 진폭영상 (a) 1비트 균일 양자화 영상, (b) 8비트 균일 양자화 영상, (c) 1비트 A-Law 비균일 양자화 영상, (d) 8비트 A-Law 비균일 양자화 영상, (e) 1비트 μ-Law 비균일 양자화 영상, (f) 8비트 μ-Law 비균일 양자화 영상 Fig. 18. Reconstructed quantization Multi 2D amplitude image (a) 1bit uniform quantization image, (b) 8bit uniform quantization image, (c) 1bit A-law non-uniform quantization image, (d) 8bit A-law non-uniform quantization image, (e) 1bit μ-Law non-uniform quantization image, (f) 8-bit μ-law non-uniform quantization image
그림 19. 양자화 된 Dices 1080p를 복원한 홀로그램의 진폭영상 (a) 1비트 균일 양자화 영상, (b) 8비트 균일 양자화 영상, (c) 1비트 A-Law 비균일 양자화 영상, (d) 8비트 A-Law 비균일 양자화 영상, (e) 1비트 μ-Law 비균일 양자화 영상, (f) 8비트 μ-Law 비균일 양자화 영상 Fig. 19. Reconstructed quantization Dices 1080p amplitude image (a) 1bit uniform quantization image, (b) 8bit uniform quantization image, (c) 1bit A-law non-uniform quantization image, (d) 8bit A-law non-uniform quantization image, (e) 1bit μ-Law non-uniform quantization image, (f) 8-bit μ-law non-uniform quantization image
그림 20. 실수와 허수 이미지의 양자화 결과에 대한 평균적인 PSNR 비교 (a) 홀로그램 결과 (b) 복원된 홀로그램 결과 Fig. 20. Average PSNR comparison of quantization results of real and imaginary images (a) hologram results (b) reconstructed hologram results
그림 21. 원본 홀로그램과 복원된 홀로그램에 대한 결과 (부동소수점) (a) 2D Multi, (b) 3D Multi, (c) 4:4:4 Dices1080p (RGB 평균), (d) 채널 분리 Dices1080p(RGB 평균) Fig. 21. Results for original Hologram and reconstructed Hologram (Floating points) (a) 2D Multi, (b) 3D Multi, (c) 4:4:4 Dices1080p (RGB average), (d) Channel separation Dices1080p (RGB average)
그림 22. 원본 홀로그램과 복원된 홀로그램에 대한 결과 (정규화) (a) 2D Multi, (b) 3D Multi, (c) Dices1080p(RGB 평균), (d) 채널 분리 Dices1080p(RGB 평균) Fig. 22. Results for original Hologram and reconstructed Hologram (Normalizaiton) (a) 2D Multi, (b) 3D Multi, (c) 4:4:4 Dices1080p (RGB average), (d) Channel separation Dices1080p (RGB average)
그림 23. 원본 홀로그램과 복호화된 홀로그램의 복원에 대한 결과 (정규화) (a) 2D Multi, (b) 3D Multi, (c) Dices1080p(RGB 평균), (d) 채널 분리 Dices1080p(RGB 평균) Fig. 23. Results for original Hologram and reconstruction decoded Hologram (Normalizaiton) (a) 2D Multi, (b) 3D Multi, (c) 4:4:4 Dices1080p (RGB average), (d) Channel separation Dices1080p (RGB average)
그림 24. 2D Multi 압축 결과 (a) QP 0, (b) QP 30, (c) QP 50 Fig. 24. Results for compression 2D Multi (a) QP 0, (b) QP 30, (c) QP 50
그림 25. 3D Multi 압축 결과 (a) QP 0, (b) QP 30, (c) QP 50 Figure 25. Results for compression 3D Multi (a) QP 0, (b) QP 30, (c) QP 50
그림 26. Dices1080p 압축 결과 (a) QP 0, (b) QP 30, (c) QP 50 Fig. 26. Results for compression Dices1080p (a) QP 0, (b) QP 30, (c) QP 50
표 1. 표준 코덱에 따른 파라미터 Table 1. Parameter according to standard codec
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