Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Lu-Ting Ko"'
Publikováno v:
International Journal of Advanced Robotic Systems, Vol 10 (2013)
This paper presents a novel architecture of a joint angle processor for a robot arm. The objective of the proposed coordinate, rotation, digital computer (CORDIC)-based joint angle processor is to provide a hardware solution for computing the inverse
Externí odkaz:
https://doaj.org/article/b0d3c6eedeac4e42b1f9c3e9bc359d5b
Autor:
Lu-Ting Ko, 柯律廷
101
In this research, we focus on information hiding in digital images. The dissertation consists of three major parts. In the first part, we investigate information hiding algorithm based on quantization index modulation (QIM). A novel quantiza
In this research, we focus on information hiding in digital images. The dissertation consists of three major parts. In the first part, we investigate information hiding algorithm based on quantization index modulation (QIM). A novel quantiza
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/22323478401470698850
Publikováno v:
Mathematical Problems in Engineering, Vol 2012 (2012)
Watermark transparency is required mainly for copyright protection. Based on the characteristics of human visual system, the just noticeable distortion (JND) can be used to verify the transparency requirement. More specifically, any watermarks whose
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::660792cc023b56b8d3ab4125a0053add
https://doi.org/10.1155/2012/635738
https://doi.org/10.1155/2012/635738
Publikováno v:
Mathematical Problems in Engineering, Vol 2012 (2012)
Digital watermarking is a good tool for healthcare information management systems. The well-known quantization-index-modulation- (QIM-) based watermarking has its limitations as the host image will be destroyed; however, the recovery of medical image
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31d2b797efd251a5dba27fc058196329
https://doi.org/10.1155/2012/757018
https://doi.org/10.1155/2012/757018
Publikováno v:
Mathematical Problems in Engineering, Vol 2012 (2012)
This paper presents a novel algorithm and architecture for digital frequency synthesis (DFS). It is based on a simple difference equation. Simulation results show that the proposed DFS algorithm is preferable to the conventional phase-locked-loop fre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f97f8ea57497b714876f7afa14d04fcf
Publikováno v:
Mathematical Problems in Engineering, Vol 2012 (2012)
Discrete cosine transform (DCT) and inverse DCT (IDCT) have been widely used in many image processing systems and real-time computation of nonlinear time series. In this paper, the unified DCT/IDCT algorithm based on the subband decompositions of a s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19d8f400b34264890b6acafe6aa557de
Publikováno v:
Computational and Mathematical Methods in Medicine, Vol 2012 (2012)
Computational and Mathematical Methods in Medicine
Computational and Mathematical Methods in Medicine
Digital watermarking has attracted lots of researches to healthcare information management systems for access control, patients' data protection, and information retrieval. The well-known quantization index modulation-(QIM-) based watermarking has it
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b55c96010e099e426d26c28c2cc60225
Publikováno v:
Mathematical Problems in Engineering, Vol 2012 (2012)
This paper proposes a reversible watermarking technique for natural images. According to the similarity of neighbor coefficients’ values in wavelet domain, most differences between two adjacent pixels are close to zero. The histogram is built based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a9ccd44b52a20437d31b273922b43cc
https://doaj.org/article/0da3cc51290040a99129c777d72d4047
https://doaj.org/article/0da3cc51290040a99129c777d72d4047
Publikováno v:
Computational and Mathematical Methods in Medicine, Vol 2012 (2012)
Computational and Mathematical Methods in Medicine
Computational and Mathematical Methods in Medicine
Coordinate rotation digital computer (CORDIC) is an efficient algorithm for computations of trigonometric functions. Scaling-free-CORDIC is one of the famous CORDIC implementations with advantages of speed and area. In this paper, a novel direct digi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eeb9810fe1470ab6851f9389ca2cd397
https://doaj.org/article/3bd4b04a19404c3a8b3bf5fe6b3df067
https://doaj.org/article/3bd4b04a19404c3a8b3bf5fe6b3df067
Publikováno v:
International Journal of Advanced Robotic Systems, Vol 10 (2013)
International Journal of Advanced Robotic Systems
International Journal of Advanced Robotic Systems
This paper presents a novel architecture of a joint angle processor for a robot arm. The objective of the proposed coordinate, rotation, digital computer (CORDIC)-based joint angle processor is to provide a hardware solution for computing the inverse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfc4625d5f0874cfc7dbb651e7921b2e
https://doi.org/10.5772/53377
https://doi.org/10.5772/53377