This paper proposes using virtual reality to enhance the perception of actions by distant users on a shared application. Here, distance may refer either to space (e.g. in a remote synchronous collaboration) or time (e.g. during playback of recorded actions). Our approach consists in immersing the application in a virtual inhabited 3D space and mimicking user actions by animating avatars whose m...

Although moving human observers actively fixate their eyes on points in the world, computer vision algorithms designed for the estimation of structure-from-motion or egomotion typically do not make use of this constraint. In this paper, we investigate the computational advantage of fixation. The main contribution of this work is to precisely specify the form of the optical flow field for a fixa...

We report contrast detection, contrast increment, contrast masking, orientation discrimination, and spatial frequency discrimination thresholds for spatially localized stimuli at 4 degrees of eccentricity. Our stimulus geometry emphasizes interactions among overlapping visual filters and differs from that used in previous threshold measurements, which also admits interactions among distant filt...

Robot hand-eye coordination has recently enjoyed much attention. Previous research at MIT has examined combining vision and manipulation applied to the task of tracking and catching tossed balls in controlled environments. Building upon the foundations of this past research, this paper presents work which incorporates a new active vision system which requires a minimally controlled environment,...

BACKGROUND: Reading can be described as a complex cognitive process of decrypting signs to create meaning. Eventually, it is way language achievement, communication, and sharing information ideas. Changing lighting color are known improve visual comfort the perceptual difficulties that affect reading for those with poor vision. AIM: The main objectives current study were investigate effect chan...

Introduction: Prathama Patalagata Timira is one of the stages which a Drishtigata Roga and can be correlated to Simple Myopia with characteristic symptom blurred vision for distant objects. This disease said physiological become major health concern. It common cause ocular morbidity that may ultimately lead blindness as explained by Vagbhatacharya. Objectives: The objectives study are evaluate ...

Color is an inner, highly subjective experience only triggered by properties of light from the external world. Actual color perceptions are inextricably linked to (i) visual processing properties of observers that can vary greatly across individuals, and (ii) minor changes in viewing circumstances. Thus, it can be argued that color is not of this world, or, that color is not a veridical, or eve...

Surgical wound infections are usually encountered due to the endogenous rather than the exogenousinfective sources. The objective of this study was to evaluate the effect of a distant inoculated infective source on the contamination of surgical wounds. Thirty White New Zealand rabbits divided randomly into three control and three treatment equal groups. In treatment groups 24 hrs before surgica...

The aim of this study was to investigate the visual quality of the 2 kinds of intraocular lens: Visian implantable collamer lens (ICL) V4 and Visian ICL V4c implantations for high myopia.Twenty cases (20 eyes) with high myopia who received Visian ICL V4 implantation and 18 cases (18 eyes) with high myopia who received Visian ICL V4c implantation in our hospital from April 1, 2014 to November 31...