Ji-Sang Yoo

Publications140
h-index12
Citations437
Highly Influential Citations9
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  • Publications
  • Influence
On Factor Maps that Send Markov Measures to Gibbs Measures
Let X and Y be mixing shifts of finite type. Let π be a factor map from X to Y that is fiber-mixing, i.e., given $x,\bar{x}\in X$ with $\pi(x)=\pi(\bar{x})=y\in Y$, there is z∈π−1(y) that is left… Expand
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The problems in digital watermarking into intra-frames of H.264/AVC
TLDR
This paper intend to show the affect of the intra-prediction on the typical digital water marking method and the fact that the watermarking method has very low effectiveness when it is performed for intra-frames of H.264. Expand
  • 27
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WisenetMD: Motion Detection Using Dynamic Background Region Analysis
TLDR
In this paper, we proposed a method to search for dynamic background region by analyzing the video and removing false positives by re-checking false positives. Expand
  • 16
  • 1
  • PDF
Information hiding for digital holograms by electronic partial encryption methods
TLDR
This paper was devoted to information hiding for a digital hologram which is the most valuable image content. Expand
  • 18
  • 1
WAVELET DOMAIN IMAGE ENCRYPTION BY SUBBAND SELECTION AND DATA BIT SLELECTION
Widespread popularity of wireless data communication devices, coupled with the availability of higher bandwidths, has led to an increased user demand for content-rich media such as images and videos.… Expand
  • 15
  • 1
  • PDF
Data Compression Technique for Digital Holograms using a Temporally Scalable Coding Method for 2-D Images
TLDR
We proposed an efficient compression coding method for a digital hologram (fringe pattern) image/video. Expand
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  • 1
  • PDF
Digital watermarking technique for holography interference patterns in a transform domain
TLDR
This paper introduces a watermarking scheme, a method to protect the ownership of digital holograms using the DCT domain data as the ones to be watermarked. Expand
  • 22
  • 1
Object tracking using Kalman filter
  • 5
  • 1
Qualitative analysis of individual and composite content factors of stereoscopic 3D video causing visual discomfort
TLDR
This paper extends the kinds of content factors, and focuses more on the composite, rather than individual, factors, to find when and how much those factors, in combination or individually, cause viewer discomfort. Expand
  • 15
  • PDF
An architecture of a high-speed digital hologram generator based on FPGA
TLDR
In this paper, a hardware architecture to generate a computer-generated hologram (CGH) in a real-time is proposed and implemented in FPGAs. Expand
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