Browsing by Author "Zhai, HC"

Now showing 1 - 3 of 3

3D monochromatic image synthesized with vertical area-partitioned recording of master hologram in multiple-exposure holography
(2001-08-01)
Zhai, HC
;
Mu, GG
;
Wang, MW
;
Liu, FM
;
Pan, D
We report for the first time theoretical analysis and experimental results of a vertical-area partition method for recording master holograms in multiple-exposure rainbow holography to synthesize monochromatic 3D image from a series of medical tomograms. In this novel method, the master hologram is area partitioned into elementary master holograms, which are recorded in a periodic arrangement along the vertical direction. Under the white-light reconstruction, a 3D monochromatic image composed of a series of medical tomograms can be synthesized with wide viewing angle, high resolution, and low color blur. (C) 2001 Published by Elsevier Science B.V.
Color image recognition by use of a joint transform correlator of three liquid-crystal televisions
(2002-03-10)
Hsieh, ML
;
Hsu, KY
;
Zhai, HC
;
光電工程學系
;
Department of Photonics
We present a joint transform correlator for color image recognition by using three liquid-crystal spatial light modulators. A method for simultaneously obtaining the correlation peaks of red, green, and blue is proposed and experimentally demonstrated. (C) 2002 Optical Society of America.
Viewing effects of 3-D images synthesized from a series of 2-D tomograms by VAP and HAP approaches
(2002)
Zhai, HC
;
Wang, MW
;
Liu, FM
;
Hsu, KY
;
光電工程學系
We report, for the first time, the experimental result and its analysis of synthesizing a series of simulating 2-D tomograms into a 3-D monochromatic image. Our result shows clearly the advantage in monochromaticity of a vertical area-partition (VAP) approach over a horizontal area-partition (HAP) approach during the final white-light reconstruction. This monochromaticity will ensure a 3-D image synthesis without any distortion in gray level or positional recovery.