Wavelet-Based Multiresolution Features for Detecting Duplications in Images (2009)
M. K. Bashar, K. Noda, N. Ohnishi, H. Kudo, T. Matsumoto, Y. Takeuchi
Duplication of image regions is a common method for manipulating original images using typical software like Adobe Photoshop. In this study, we propose a wavelet based feature representation scheme...
Dynamic multiresolution optical flow computation (2009)
Ohnishi, N., Kameda, Y., Imiya, A., Dorst, L., Klette, R.
This paper introduces a new algorithm for computing multi-resolution optical flow, and compares this new hierarchical method with the traditional combination of the Lucas-Kanade method with a pyramid...
ICA ALGORITHM BASED ON SUBSPACE APPROACH. (2008)
Ali Mansour, Member Of Ieee, N. Ohnishi, Member Of Ieee
Generally, the blind separation algorithms based on the subspace approach are very slow. In addition, they need a considerable computation e ort and time due to the estimation and the minimization of...
Fast Algorithm For, A. Mansour, A. Kardec Barros, M. Kawamoto, N. Ohnishi
In this paper, a new algorithm for the instantaneous mixture of the blind separation of sources problem is derived. This algorithm deals with Multi-Input Multi-Output (MIMO) channels. The cost...
ICA Algorithm Based on Subspace Approach (2008)
Ali Mansour, N. Ohnishi, Member Of Ieee, Member Of Ieee
Generally, the blind separation algorithms based on the subspace approach are very slow. In addition, they need a considerable computation effort and time due to the estimation and the minimization...
First International Workshop on IndependentComponent Analysis and Signal Separation (ICA'99) (2008)
Real World Blind, M. Kawamoto, A. K. Barros, A. Mansour, K. Matsuoka, N. Ohnishi
In this paper, a method of blind separation for convolved non-stationary signals (e.g., speech signals and music) is presented. Our method achieves blind separation by forcing mixed signals to...
A New Geometrical Blind Separation of Sources Algorithm. (2007)
A. Mansour, C. G. Puntonet, N. Ohnishi
In this paper we present a new blind separation of sources (BSS) algorithm based on second order statistics (SOS) and geometrical approaches. The new algorithm can separate multisources from their...
ICA ALGORITHM BASED ON SUBSPACE APPROACH. (2007)
Ali Mansour, N. Ohnishi, Member Of Ieee, Member Of Ieee
Generally, the blind separation algorithms based on the subspace approach are very slow. In addition, they need a considerable computation effort and time due to the estimation and the minimization...
cross-cumulant and Levenberg-Marquardt method. (2007)
Procedings Of Icsp, A. Mansour, A. Kardec Barros, M. Kawamoto, N. Ohnishi
A fast algorithm for blind separation of sources based on the
A. Mansour, A. Kardec Barros, N. Ohnishi
In this paper, a new subspace adaptive algorithm, for blind separation of convolutive mixture, is proposed. This algorithm can be decomposed into two steps: At first, the convolutive mixture will be...
A Simple ICA Algorithm Based On Geometrical Approach. (2007)
A. Mansour, C. G. Puntonet, N. Ohnishi
Here, a simple and new algorithm for blind separation of sources based on geometrical concepts is proposed. This algorithm deals with the instantaneous mixtures and it doesn't require the...
Image Retrieval By Local Contrast Patterns and Color Histogram (2006)
Despite simplicity of the Local binary patterns(LBP) or local edge patterns(LEP)for texture description, they do not always convey complex pattern information. Hence we propose a new descriptor...
A Simple ICA Algorithm Based on Geometrical Approach (2001)
A. Mansour, C. G. Puntonet, N. Ohnishi
Here, a simple and new algorithm for blind separation of sources based on geometrical concepts is proposed. This algorithm deals with the instantaneous mixtures and it doesn't require the...
A. Mansour, A. Kardec Barros, N. Ohnishi
In this paper, a new subspace adaptive algorithm, for blind separation of convolutive mixture, is proposed. This algorithm can be decomposed into two steps: At first, the convolutive mixture will be...
Umezawa, K, Ohnishi, N, Tanaka, K, Kamiya, S, Koga, Y, Nakazawa, H, ...
The pathophysiological roles of superoxide (O2.-) at the site of infection of facultative intracellular bacteria were examined in this study. To evaluate the actual in vivo generation of the...
Umezawa, K, Ohnishi, N, Tanaka, K, Kamiya, S, Koga, Y, Nakazawa, H, ...
The pathophysiological roles of superoxide (O2.-) at the site of infection of facultative intracellular bacteria were examined in this study. To evaluate the actual in vivo generation of the...
Ohnishi, N, Miyata, T, Ohnishi, H, Yasuda, H, Tamada, K, Ueda, N, ...
Background and aim: The present study was conducted to examine the effect of activin A on activation of rat pancreatic stellate cells (PSCs).
Hina, K, Murakami, T, Kusachi, S, Hirami, R, Matano, S, Ohnishi, N, ...
OBJECTIVE—To determine preoperatively, by analysing asynchronous left ventricular wall motion, whether to approach through the right ventricle or the left ventricle when carrying out catheter...
Saito, D, Oka, T, Kajiyama, A, Ohnishi, N, Shiraki, T
Objective: To investigate factors predicting the development of outward remodelling of the carotid artery in patients with atherosclerosis.