نتایج جستجو برای: inverse image

تعداد نتایج: 461313  

Journal: :Publications of the Research Institute for Mathematical Sciences 1991

Journal: :Int. J. Imaging Systems and Technology 2006
Ali Mohammad-Djafari

Probability theory and statistics are two main tools in signal and image processing. Bayesian inference has a privileged place in developing methods for inverse problems arising in signal and image processing which can be applied in real world applications. In this tutorial presentation, first I will breifly present the Bayesian estimation approach in signal and image processing. Then, I will s...

Image fusion is a method for obtaining a highly informative image by merging the relative information of an object obtained from two or more image sources of the same scene. The satellite cameras give a single band panchromatic (PAN) image with high spatial information and multispectral (MS) image with more spectral information. The problem exists today is either PAN or MS image is available fr...

2005
NELSON D. A. MASCARENHAS JOÃO P. PAPA LEILA M. G. FONSECA

In POCS image restoration we consider the case where the prototype images are obtained from the observed image via a predetermined operator, which is the Modified Inverse Filter. A POCS algorithm using the proposed constraints and the limited amplitude constraint is applied to monochrome CBERS-2 satellite band 2 images.

2009
Xiao Bo Lu William Thorpe Kylie Foster Peter Hunter

The goal of this study is to develop a customised computer model that can accurately represent the motion of vocal articulators during vowels and consonants. Models of the articulators were constructed as Finite Element (FE) meshes based on digitised high-resolution MRI (Magnetic Resonance Imaging) scans obtained during quiet breathing. Articulatory kinematics during speaking were obtained by E...

Journal: :Optics express 2010
Jue-Chin Yu Peichen Yu

For advanced CMOS processes, inverse lithography promises better patterning fidelity than conventional mask correction techniques due to a more complete exploration of the solution space. However, the success of inverse lithography relies highly on customized cost functions whose design and know-how have rarely been discussed. In this paper, we investigate the impacts of various objective funct...

In this paper, we nd the relationships between module contractibility of aBanach algebra and its ideals. We also prove that module contractibility ofa Banach algebra is equivalent to module contractibility of its module uniti-zation. Finally, we show that when a maximal group homomorphic image ofan inverse semigroup S with the set of idempotents E is nite, the moduleprojective tensor product l1...

2005
S. Ito S. Nakamura Y. Yamada K. Tanaka

INTRODUCTION A novel image reconstruction technique, which avoids aliasing artifacts by scalable image reconstruction in Magnetic Resonance Imaging, is proposed. The signal obtained in the phase-scrambling Fourier imaging technique can be transformed to the signal described in the Fresnel transform equation of the objects. Therefore, image reconstruction can be performed not only by inverse Fou...

2013
T. Sivakumar R. Venkatesan Hongjun Liu Xingyuan Wang Abdurahman kadir Ismet Ozturk Ibrahim Sogukpinar Mohammad Ali Bani Younes Aman Jantan Nooshin Bigdeli Yousef Farid Karim Afshar Seyed Mohammad Seyedzadeh Tzung-Her Chen Kuang-Che Li Sapna Sasidharan

Bio-images such as fingerprint, face and iris are sensitive and hence small change in such images could affect the result substantially. The processing overhead could be reduced by encrypting a preferred region instead of encrypting the entire image. In this paper a novel fractional bio-image encryption method is presented using Karhunen-Loeve (KL) transform, which is a reversible linear transf...

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