Results 91 to 100 of about 53,992 (120)

A vlsi architecture for finite ridgelet transform

2003 46th Midwest Symposium on Circuits and Systems, 2006
This paper presents a VLSI architecture for the finite ridgelet transform (FRIT). The proposed architecture has been partitioned into two stages. First stage computes the finite Radon transform (FRAT) coefficients and the second stage computes 1-D discrete wavelet transform (DWT) coefficients.
C.A. Rahman, W. Badawy
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Robust Watermarking Scheme in Finite Ridgelet Transform Domain

2008 IEEE Pacific-Asia Workshop on Computational Intelligence and Industrial Application, 2008
How to select the finite ridgelet transform (FRIT) coefficients which were suitable to embed watermark data was an interesting problem. Digital watermarking algorithms in FRIT domain were accomplished by modulating the transform coefficients, which represented the most energetic direction of an image.
Ruiling Zhu, Xin Wang
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The curvelet transform based on finite ridgelet transform for image denoising

Proceedings 7th International Conference on Signal Processing, 2004. Proceedings. ICSP '04. 2004., 2005
A digital implementation of curvelet transform is proposed which offers exact reconstruction and low redundancy (
null Peng Zhang, null Lin Ni
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Digital image forensics with finite ridgelet transform

2009 IEEE 17th Signal Processing and Communications Applications Conference, 2009
With the use of advanced computer graphics rendering software, very successful photorealistic images can be generated. Therefore, it may be hard to discriminate the photographic images from the photorealistic ones. In this work, we propose to use the statistics obtained from the ridgelet transform to distinguish the photographic and photorealistic ...
Levent Ozparlak
exaly   +2 more sources

Efficient systolic architecture and power modeling for finite ridgelet transform

2009 IEEE 12th International Conference on Computer Vision Workshops, ICCV Workshops, 2009
In this paper, an efficient architecture for the finite ridgelet transform (FRIT) suitable for embedded computer vision systems based on a parallel, systolic finite radon transform (FRAT) sub-block and Haar wavelet transform (HWT) block is presented. Field programmable gate array (FPGA) implementation is carried out to characterise the performance of ...
Abdul Naser Sazish, Shrutisagar Chandrasekaran, Abbes Amira   +2 more
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Finite Ridgelet Transform Based Listless Block-Partitioning Image Coding Algorithm

2013 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery, 2013
In this paper, an image coding algorithm based on a rate-distortion optimized orthonormal finite ridge let transform (OFRIT) decomposition and on an improved listless block-partitioning coding scheme which quantizes each sub band separately is proposed.
Zhenghua Shu, Guodong Liu, Zhihua Xie 0002, Zhong Ren 0002, Lixin Gan   +4 more
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An image coding method of shape adaptive orthonormal finite ridgelet transform

2014 7th International Congress on Image and Signal Processing, 2014
We propose a shape-adaptive wavelet-based finite ridgelet coding method, which can efficiently code an arbitrarily shaped video object. Mechanism of SA-FRIT on the shape adaptive ridgelet transform are discussed, based on the mask images on video object shape adaptive ridgelet three level decomposition.
Zhenghua Shu, Liu Guodong, Xie Zhihua
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Blind separation of noisy images using finite Ridgelet Transform and wavelet de-noising

2013 Second International Japan-Egypt Conference on Electronics, Communications and Computers (JEC-ECC), 2013
This paper deals with the problem of blind separation of digital images from noisy mixtures. It proposes the application of a blind separation algorithm on Ridgelet Transform (RT) of the mixed images, instead of performing the separation on the mixtures in the time domain. Soft Wavelet thresholding denoising of the noisy mixtures is recommended in this
M. Y. Abbass, S. A. Shehata, S. S. Haggag, S. M. Diab, B. M. Salam, S. El-Rabaie, F. E. Abd El-Samie   +6 more
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A novel algorithm of image fusion using finite ridgelet transform

SPIE Proceedings, 2006
In this paper, a novel image fusion method based on the finite ridgelet transform(FRIT). Firstly, the problem that wavelet transform could not efficiently represent the singularity of linear/curve in image processing is analyzed. Secondly, the principal of FRIT and its good performance in expressing the singularity of two or higher dimensional are ...
Qiguang Miao, Baoshu Wang
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A new digital image watermarking based on Finite Ridgelet Transform and extraction using ICA

2011 International Conference on Emerging Trends in Electrical and Computer Technology, 2011
This paper presents a new digital image watermarking based on Ridgelet Transform (RT) and extraction using Independent Component Analysis (ICA). Ridgelet transform is a new directional multi-resolution transform and is more suitable for describing the signals with high dimensional singularities. Finite Ridgelet Transform (FRIT) is a discrete version of
P. Mangaiyarkarasi, S. Arulselvi
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