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ICIP
2010
IEEE
13 years 4 months ago
Spiral FFT: An efficient method for 3-D FFTS on spiral MRI contours
The Fast Fourier Transform (FFT) allows the Discrete Time Fourier Transform (DTFT) to be efficiently sampled on a uniform grid in frequency. In many applications, including Magnet...
Christopher K. Turnes, Justin K. Romberg
TIP
2011
195views more  TIP 2011»
13 years 2 months ago
Accelerating X-Ray Data Collection Using Pyramid Beam Ray Casting Geometries
Abstract—Image reconstruction from its projections is a necessity in many applications such as medical (CT), security, inspection, and others. This paper extends the 2-D Fan-beam...
Amir Averbuch, Guy Lifschitz, Yoel Shkolnisky
3DIM
2005
IEEE
14 years 1 months ago
Transform-Based Methods for Indexing and Retrieval of 3D Objects
We compare two transform-based indexing methods for retrieval of 3D objects. We apply 3D Discrete Fourier Transform (DFT) and 3D Radial Cosine Transform (RCT) to the voxelized dat...
Helin Dutagaci, Bülent Sankur, Yücel Yem...
CORR
2010
Springer
241views Education» more  CORR 2010»
13 years 7 months ago
Haar Wavelet Based Approach for Image Compression and Quality Assessment of Compressed Image
With the increasing growth of technology and the entrance into the digital age, we have to handle a vast amount of information every time which often presents difficulties. So, the...
Kamrul Hasan Talukder, Koichi Harada
ICIP
2007
IEEE
14 years 1 months ago
Steganalyzing Texture Images
A texture image is of noisy nature in its spatial representation. As a result, the data hidden in texture images, in particular in raw texture images, are hard to detect with curr...
Chunhua Chen, Yun Q. Shi, Guorong Xuan