11 citations · 11 across the 5 of their papers we have counts for
5 papers
Suppression of DC term in Fresnel digital holography by sequence subtraction of holograms
Jong-Chol Kang, Chol-Su Kim, Song-Jin Im
An experimental method for suppression of DC term in the reconstructed images from Fresnel digital holograms is presented. In this method, two holograms for the same object are cap…
Rapid Measurement of Spectral Characteristics by Correlation Matching Method
Chol-Sun Kim, Chol-Su Kim, Song-Jin Im
In this paper, we have established the couple system of a spectroscope, CCD and computer and proposed a method of the rapid measurement on spectral characteristics such as central…
Determination of the local contrast of interference fringe patterns using continuous wavelet transform
Kwang Hyok Jong, Chol Su Kim
This essay gives the determination method of the local contrast of interference fringe patterns using continuous wavelet transform.
Study on the Vibration Displacement Distribution of a Circular Ultrasonic Motor Stator
Chol-Su Ri, Myong-Jin Kim, Chol-Su Kim +1
In this paper is presented a theoretical consideration on the stator's displacement distribution, which is one of the most important problems in defining the structure of the circu…
Document watermarking based on digital holographic principle
Chol-Su Kim, Kwang-Hyok Jong, Song-Jin Im
A new method for document watermarking based on the digital Fourier hologram is proposed. It applies the methods of digital image watermarking based on holographic principle presen…