• Publications
  • Influence
Optical image recognition of three-dimensional objects.
  • T. Poon, T. Kim
  • Computer Science, Medicine
  • Applied optics
  • 10 January 1999
The proposed technique is based on two-pupil optical heterodyne scanning and is capable of performing 3-D image recognition and lays a theoretical foundation for optical implementations of the idea. Expand
Imaging properties of scanning holographic microscopy.
It is described how it is possible, by an appropriate choice of the reconstruction algorithm, to obtain an ideal transfer function equal to unity up to the cutoff frequency, even in the presence of aberrations. Expand
Three-dimensional matching by use of phase-only holographic information and the Wigner distribution.
  • T. Kim, T. Poon
  • Computer Science, Medicine
  • Journal of the Optical Society of America. A…
  • 1 December 2000
Optical experiments with digital processing are described to demonstrate the proposed matching technique and the Wigner distribution gives a well-defined line that directly indicates the 3-D location of the matched target object. Expand
Twin-image elimination experiments for three-dimensional images in optical scanning holography.
An experimental verification of the proposed twin-image elimination technique by optical acquisition of the two holograms and subsequent reconstruction of the complex hologram digitally is reported, and three-dimensional image reconstruction without twin- image noise is demonstrated. Expand
Horizontal-parallax-only electronic holography.
The principle of optical scanning holography (OSH) is proposed to acquire horizontal-parallax-only (HPO) holographic information electronically and this is the first proposed electronic technique to acquire HPO-holographic information. Expand
Three-dimensional location of fluorescent inhomogeneities in turbid media by scanning heterodyne holography.
The method utilizes incoherent scanning holography to capture 3-D information in a single two-dimensional scan and phase-sensitive heterodyne detection to reject multiply scattered light and to produce a single-sideband holographic record. Expand
Fast reconstruction of sectional images in digital holography.
This work proposes a fast BSIR method that reconstructs sectional images with less out-of-focus haze, and uses holograms acquired by optical scanning holography as examples to show the method's effectiveness. Expand
Low Complexity Compression and Speed Enhancement for Optical Scanning Holography
A dynamic step-size adjustment scheme is incorporated in the compression of holograms that are acquired with 2 different OSH systems, demonstrating a compression ratio of over two orders of magnitude, while preserving favorable fidelity on the reconstructed images. Expand
Fast reconstruction of digital holograms for extended depths of field
This work proposes, for the first time, a low complexity method that is capable of reconstructing a complex hologram, such that sections at different depths in the 3D object scene can be automatically reconstructed at the correct focal distances and merged into a single image for an extended depth of field. Expand