Real-Time Optical Subtraction And Pseudo-Color Image Difference Detection Via Liquid Crystal Television Spatial Light Modulator (LCTVSLM)

1987 ◽  
Author(s):  
Tien -Hsin Chao ◽  
Hua-Kuang Liu
Keyword(s):  
Liquid Crystal ◽  
Real Time ◽  
Spatial Light Modulator ◽  
Color Image ◽  
Light Modulator ◽  
Difference Detection ◽  
Liquid Crystal Television ◽  
Pseudo Color ◽  
Image Difference

Pseudo-Color Coded Optical System Based on the Spatial Light Modulator and Charge-Coupled Device

2012 ◽  
Author(s):  
S. N. Zhao ◽  
H. Chang ◽  
J. Wei ◽  
Z. Wei
Keyword(s):  
Real Time ◽  
Optical System ◽  
Spatial Light Modulator ◽  
Processing System ◽  
Optical Processing ◽  
Gray Scale ◽  
Light Modulator ◽  
Time Modulation ◽  
Gray Scale Image ◽  
Pseudo Color

A new pseudo-color coded optical system based on the liquid crystal spatial light modulator (LC-SLM) and a digital camera (CCD) is proposed. The SLM is used to replace the holographic grating with gray-scale image information, a gray-scale image in real-time modulation methods is proposed by synthesizing phase hologram and Ronchi grating, combined with the 4f coherent optical processing system and spatial filtering. For the high resolution gray image processed with existing digital pseudo-color method, the color sensitivity is low, algorithm is very complex. For traditional optical pseudo-color method, the gray scale image needs chemical pretreatment. The process is complex and time-consuming, and the real-time modulation could not be achieved. Our new method has enhanced the flexibility and adaptability of the optical pseudo-color, and give full play to the high sensitivity, high-capacity, rich colors and other features of the optical processing mode. At the same time, it overcomes the disadvantages of pure optical system which could not perform real-time processing. Therefore, it can be widely used in the field of remote sensing, biomedical, environmental monitoring, public security and criminal investigation, etc.

Real-time electron-holographic interference microscopy with a liquid-crystal spatial light modulator

1993 ◽  
Vol 18 (22) ◽  
pp. 1887 ◽  
Author(s):  
Jun Chen ◽  
Tsukasa Hirayama ◽  
Guanming Lai ◽  
Takayoshi Tanji ◽  
Kazuo Ishizuka ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Real Time ◽  
Spatial Light Modulator ◽  
Interference Microscopy ◽  
Light Modulator

Real-time color image correlation with a color liquid-crystal television and a Fresnel holographic filter

1993 ◽  
Vol 32 (5) ◽  
pp. 715 ◽  
Author(s):  
Z. Q. Wang ◽  
C. M. Cartwright ◽  
C. Soutar ◽  
W. A. Gillespie
Keyword(s):  
Liquid Crystal ◽  
Real Time ◽  
Color Image ◽  
Image Correlation ◽  
Liquid Crystal Television

Real-time phase-difference amplification with a liquid-crystal spatial light modulator

2000 ◽  
Vol 39 (28) ◽  
pp. 5125 ◽  
Author(s):  
Kiyofumi Matsuda ◽  
Geoffrey T. Bold ◽  
Thomas H. Barnes ◽  
Tomoaki Eiju ◽  
Colin J. R. Sheppard
Keyword(s):  
Liquid Crystal ◽  
Real Time ◽  
Phase Difference ◽  
Spatial Light Modulator ◽  
Light Modulator

Real-time binary phase holograms on a reflective ferroelectric liquid-crystal spatial light modulator

1994 ◽  
Vol 33 (35) ◽  
pp. 8251 ◽  
Author(s):  
J. Gourlay ◽  
S. Samus ◽  
P. McOwan ◽  
D. G. Vass ◽  
I. Underwood ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Real Time ◽  
Spatial Light Modulator ◽  
Ferroelectric Liquid Crystal ◽  
Light Modulator ◽  
Binary Phase ◽  
Phase Holograms
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