상세정보
학술대회
Measurement of Depth Representation Using Integral Imaging for Quality Evaluation of Computer-Generated Hologram
- 발행일
- 201405
- 출처
- Three-Dimensional Imaging, Visualization, and Display 2014 (SPIE 9117), v.9117, pp.1-7
- 협약과제
- 13MR1100, 디지털 홀로그래픽 테이블탑형 단말 기술 개발, 김진웅
- 초록
- We demonstrate the depth measurement method of holographic images using integral imaging. The depth information of holographic images can be obtained with a single capture by conventional integral imaging pickup system composed of a micro lens array (MLA) and an image sensor. In order to verify the feasibility of our proposed method, an elemental image set of holographic images formed by a MLA was generated by a computer, and then refocused images at different planes were reconstructed numerically using computational integral imaging reconstruction (CIIR) technique for depth measurement. Note that we set the distance between MLA and image sensor as focal length of micro lens for large depth of focus. From the numerical results, we can measure the depth representation of holographic images successfully. However, refocused images from an optically captured elemental image set provide poor depth discrimination due to expected error in distance between MLA and image sensor. Only an object in a particular narrow depth range can be focused clearly when the image sensor is placed out of the MLA focal plane. The simulated results in this condition matched reasonably with the experiment result. © 2014 SPIE.
- KSP 제안 키워드
- Computational integral imaging reconstruction, Computer generated holograms(CGH), Depth information, Depth measurement, Depth of focus, Depth range, Expected error, Focal length, Image Sensor, Microlens array, Numerical results