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Institution

Central Police University

EducationTaoyuan District, Taiwan
About: Central Police University is a education organization based out in Taoyuan District, Taiwan. It is known for research contribution in the topics: The Internet & Steganography. The organization has 482 authors who have published 725 publications receiving 8358 citations. The organization is also known as: Zhōngyāng Jǐngchá Dàxué.


Papers
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Journal ArticleDOI
TL;DR: A new adaptive least-significant- bit (LSB) steganographic method using pixel-value differencing (PVD) that provides a larger embedding capacity and imperceptible stegoimages and when compared to the past study of Wu et al.'s PVD and LSB replacement method, the experimental results show that the proposed approach provides both larger embeding capacity and higher image quality.
Abstract: This paper proposes a new adaptive least-significant- bit (LSB) steganographic method using pixel-value differencing (PVD) that provides a larger embedding capacity and imperceptible stegoimages. The method exploits the difference value of two consecutive pixels to estimate how many secret bits will be embedded into the two pixels. Pixels located in the edge areas are embedded by a k-bit LSB substitution method with a larger value of k than that of the pixels located in smooth areas. The range of difference values is adaptively divided into lower level, middle level, and higher level. For any pair of consecutive pixels, both pixels are embedded by the k-bit LSB substitution method. However, the value k is adaptive and is decided by the level which the difference value belongs to. In order to remain at the same level where the difference value of two consecutive pixels belongs, before and after embedding, a delicate readjusting phase is used. When compared to the past study of Wu et al.'s PVD and LSB replacement method, our experimental results show that our proposed approach provides both larger embedding capacity and higher image quality.

429 citations

Journal ArticleDOI
TL;DR: The main purpose of this paper is to investigate the properties of the convexity of the total variable cost function of the inventory model of the deteriorating items under a permissible delay in payments.

206 citations

Journal ArticleDOI
TL;DR: A partial DNA sequence of cytochrome b gene was used to identify the remains of endangered animals and species endemic to Taiwan and proved to be usable for animal identification.

205 citations

Journal ArticleDOI
TL;DR: A review of all aspects of analysis associated with gunshot residues is provided in this article, including a summary of what both inorganic and organic residues are, how they arise and how they may be collected from a variety of substrates.
Abstract: A review of all aspects of analysis associated with gunshot residues is provided. This includes a summary of what both inorganic and organic residues are, how they arise and how they may be collected from a variety of substrates. Ways of processing samples to the point of analysis and the means by which they may be analyzed using a variety of techniques is discussed. The techniques described include SEM/EDX, flameless atomic absorption spectroscopy, neutron activation analysis, energy dispersive X-ray fluorescence and some other less common methods for inorganic residues and gas, high performance liquid and super critical fluid chromatography with speciality detectors including mass spectrometry together with capillary electrophoresis, for organic residues. A summary of how the results of such analyses may be interpreted is discussed under the different analytical techniques.

174 citations

Journal ArticleDOI
TL;DR: A novel FMEA model based on multi-criteria group decision-making, which is developed by integrating a rough best–worst method, and modified rough technique for order preference by similarity to an ideal solution for ranking failure modes, is proposed.

118 citations


Authors

Showing all 485 results

NameH-indexPapersCitations
Peter C. Chu434086516
Ivan Y. Sun311323322
James Chun-I Lee251182679
Yuning Wu24901949
Li-Der Chou211331713
Shiuh-Jeng Wang191281559
Li-Chin Tsai1849836
Hsing-Mei Hsieh1645714
Tao-Hsin Tung1662782
Yen-Wen Chen1383641
Che-Yen Wen1237420
Yun-Seng Giang1227359
Maarten Van Craen1246669
Patrick S. Chen1137446
Peterson Julian1026216
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20232
20221
202129
202033
201933
201849