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Study and Analysis of the Amount of Three-Dimensional Image Resolution Improvement Achievable By Incoherent Holography

Ghaneizad, Maryam Sadat | 2015

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 47487 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Mehrani, Khashayar; Kavehvash, Zahra
  7. Abstract:
  8. New technologies for three-dimensional (3D) sensing and visualization of real-world objects have been pursued by scientists and engineers for many decades. As opposed to traditional two-dimensional (2D) imaging techniques, 3D imaging technologies can potentially capture the 3D structure, range, and texture information of objects. Therefore, it can be developed for many applications, as medical imaging and diagnosis, dentistry, industrial designs, architecture and security. There are many 3D imaging technologies, such as holography, incoherent holography and integral imaging. Since holographic methods are based on the wave interferometry of two coherent beams, they demand high stability of the optical system and they cannot be used for outdoor recording. Unlike holography, integral imaging can capture a scene such as outdoor events with incoherent or ambient light. However, the strict trade-off existing between lateral resolution and depth resolution limits the integral imaging system’s ability to capture a high-quality and full-parallax 3D image. Incoherent holography is recently developed as a partial solution to the requirements of holography. Besides high depth resolution and many other benefits of this method, Computer-generated holograms developed by the incoherent holographic process lack lateral information of the object. This is due to the fact that the hologram’s resolution is restricted by the number of cameras or viewing angles. Here, we propose a new algorithm for reconstruction of 3D objects with high lateral and depth resolution. The computer simulations demonstrate the superiority of the new algorithm to both integral imaging and incoherent holography
  9. Keywords:
  10. Three Dimensional Imaging ; Integral Imaging ; Image Processing ; Holography ; Resolution ; Resolution Enhancement ; Incoherent Holography ; Three Dimentional Resolution

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