in the present century, which is the age of rapid growth of technology and knowledge, in addition to the development of formal teaching, increasing attention has been paid to distant education by various organizations and societies. this paper is a report of a research entitled “a study of the success and obstacles of distant education services project of khorassan province literacy organizatio...

Remote gesturing visualization contributes to the efficiency of distant collaboration tasks because it enables coordination among participant's action and talk. This paper presents computer vision improvements of VideoArms, a collaborative system proposed by Tang et al. coupling a sensitive board with a video capture of participant's gesture. The main contributions address robustness, constrain...

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: This study aims investigate effect changing wavelengths ...

Illumination can have a significant impact on the appearance of surfaces, as the patterns of shading, specularities and shadows change. For instance, some images of a face under different lighting conditions are shown in figure 1. Differences in lighting can often play a much greater role in image variability of human faces than differences between individual people. Lighting designers in movie...

In this paper, a real-time local visual feature, namely FAST+CSLBP, is proposed for omnidirectional vision. It combines the advantages of two computationally simple operators by using Features from Accelerated Segment Test (FAST) as the feature detector, and Center-Symmetric Local Binary Patterns (CS-LBP) operator as the feature descriptor. The matching experiments of the panoramic images from ...

Because of the slow speed of sound relative to light, acoustic and visual signals from a distant event often will be received asynchronously. Here, using acoustic signals with a robust cue to sound source distance, we show that judgments of perceived temporal alignment with a visual marker depend on the depth simulated in the acoustic signal. For distant sounds, a large delay of sound relative ...