نتایج جستجو برای: system magnification

تعداد نتایج: 2235994  

Journal: :British Dental Journal 2015

Journal: :Sig. Proc.: Image Comm. 1998
Aladdin M. Ariyaeeinia

The performance of stereoscopic television systems and its dependence on various parameters are investigated. It is shown that the extent of the region of space which can be displayed in three dimensions without causing undue eyestrain to the observer, and also the minimum detectable depth interval, are related to and may therefore be controlled by the system geometrical and optical parameters....

Journal: :Journal of vision 2015
Zahra Hussain Carl-Magnus Svensson Julien Besle Ben S Webb Brendan T Barrett Paul V McGraw

We describe a method for deriving the linear cortical magnification factor from positional error across the visual field. We compared magnification obtained from this method between normally sighted individuals and amblyopic individuals, who receive atypical visual input during development. The cortical magnification factor was derived for each subject from positional error at 32 locations in t...

2014
Yi Qin Hong Hua Mike Nguyen

The state-of-the-art laparoscope lacks the ability to capture high-magnification and wide-angle images simultaneously, which introduces challenges when both close- up views for details and wide-angle overviews for orientation are required in clinical practice. A multi-resolution foveated laparoscope (MRFL) which can provide the surgeon both high-magnification close-up and wide-angle images was ...

Journal: :Optics express 2006
Zubin Jacob Leonid V Alekseyev Evgenii Narimanov

We propose an approach to far-field optical imaging beyond the diffraction limit. The proposed system allows image magnification, is robust with respect to material losses and can be fabricated by adapting existing metamaterial technologies in a cylindrical geometry.

2001
Eric LaMar Bernd Hamann Kenneth I. Joy

Volume visualization of large data sets suffers from the same problem that many other visualization modalities suffer from: either one can visualize the entire data set and loose small details or visualize a small region and loose the context. In this paper, we present a magnification lens technique for volume visualization. While the notion of a magnification-lens is not new, and other techniq...

Journal: :World Neurosurgery 2021

The use of a digital three-dimensional (3D) exoscope system in neurosurgery is increasing as an alternative to the operative microscope. objective this study was compare 3D with standard operating microscope neurosurgical visualization tool highly challenging experimental setting. End-to-side bypass procedures, each at depth 9 cm, were performed simulation quality task and effect, visualization...

2016
Julian F. P. Kooij Jan C. van Gemert

This paper adds depth to motion magnification. With the rise of cheap RGB+D cameras depth information is readily available. We make use of depth to make motion magnification robust to occlusion and large motions. Current approaches require a manual drawn pixel mask over all frames in the area of interest which is cumbersome and errorprone. By including depth, we avoid manual annotation and magn...

2004
Abha Jain Erzsébet Merényi

This paper presents some interesting results obtained by the algorithm by Bauer, Der and Hermann (BDH) [1] for magnification control in Self-Organizing Maps. Magnification control in SOMs refers to the modification of the relationship between the probability density functions of the input samples and their prototypes (SOM weights). The above mentioned algorithm enables explicit control of the m...

2009
Ferry Pramudianto Andreas Zimmermann Enrico Rukzio

We see currently the trend of having larger and larger displays in our living rooms and that more and more computer oriented applications which are usually controlled by a mouse are displayed by them. Examples for the latter are web browsing, picture browsing, chatting and email. This leads to two problems. Firstly, most applications and web pages are not designed for situations in which the us...

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