نتایج جستجو برای: comparable images and resolution recovery reconstruction

تعداد نتایج: 16948152  

2005
Sally L. Wood Dinesh Rajan Marc P. Christensen

A traditional optical imaging device uses a single high quality lens designed to project the field of view onto a sensor array for direct image creation. A camera with a flatter form factor using an array of smaller lens elements would create an array of smaller lower resolution images. Reconstruction of high resolution images from multiple low resolution images at various displacements is a we...

2013
W. van Aarle K. J. Batenburg J. Sijbers

In this paper, an iterative super-resolution reconstruction method is introduced for license plate recognition. A high-resolution image of the license plate is reconstructed by fusing the information derived from a set of subpixel shifted low-resolution images. The reconstruction problem is formulated as a system of linear equations that is solved by using the simultaneous algebraic reconstruct...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم انسانی و اجتماعی 1388

abstract the present study was conducted to examine the effect of proficiency on students interaction while carrying out the grammar-based task(s) in collaboration. in particular, the study examines whether the level of proficiency affects the learners’ focus of attention to grammatical and lexical features. the study takes a further step and examines whether there is any difference in the use...

2013
Prashant B. Swadas Mahasweta Joshi

In this paper we study and represent various techniques of image super resolution (SR), it is also called as super resolution reconstruction. Super resolution reconstruction produces high resolution image from sequence of low resolution images. The main aim of super resolution is to improve visual quality of available low resolution image. Also existing Low Resolution (LR) imaging can be utiliz...

Simulating fluid flow at micro level is an ongoing problem. Simplified macroscopic flow models like Darcy’s law is unable to estimate fluid dynamic properties of porous media. The digital sample reconstruction by high resolution X-ray computed tomography scanning and fluid-dynamics simulation, together with the increasing power of super-computers, allow to carry out pore-scale simulations throu...

Journal: :Proceedings of SPIE--the International Society for Optical Engineering 2012
Jonghye Woo Ying Bai Snehashis Roy Emi Z. Murano Maureen C. Stone Jerry L. Prince

Magnetic resonance (MR) images of the tongue have been used in both clinical medicine and scientific research to reveal tongue structure and motion. In order to see different features of the tongue and its relation to the vocal tract it is beneficial to acquire three orthogonal image stacks-e.g., axial, sagittal and coronal volumes. In order to maintain both low noise and high visual detail, ea...

Journal: :IEEE Trans. Pattern Anal. Mach. Intell. 2000
Simon Baker Takeo Kanade

Nearly all super-resolution algorithms are based on the fundamental constraints that the super-resolution image should generate the low resolution input images when appropriately warped and down-sampled to model the image formation process. (These reconstruction constraints are normally combined with some form of smoothness prior to regularize their solution.) In the first part of this paper, w...

2005
R. Molina J. Mateos A. K. Katsaggelos

Multispectral image reconstruction allows to combine a multispectral low resolution image with a panchromatic high resolution one to obtain a new multispectral image with the spectral properties of the lower resolution image and the level of detail of the higher resolution one. In this paper we formulate the problem of multispectral image reconstruction based on super-resolution techniques and ...

2004
Ying Bai Xiao Han Jerry L. Prince

MR images typically have poorer resolution in the slice-selection direction than the in-plane directions. In this work, we adopt an MAP super-resolution method to reconstruct a high-resolution image from two orthogonal scans of the same subject. The new image shows improved SNR and has a resolution that approximates the original in-plane resolution in all directions. Experimental results on bot...

Journal: :Tsinghua Science & Technology 2024

Super-resolution reconstruction in medical imaging has become more demanding due to the necessity of obtaining high-quality images with minimal radiation dose, such as low-field magnetic resonance (MRI). However, image super-resolution remains a difficult task because complexity and high textual requirements for diagnosis purpose. In this paper, we offer deep learning based strategy reconstruct...

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