2 Foundations of Visual Perception and Control

Author(s):  
Geoffrey Taylor ◽  
Lindsay Kleeman
2021 ◽  
Author(s):  
Junzhi Yu ◽  
Xingyu Chen ◽  
Shihan Kong

2021 ◽  
Author(s):  
Junzhi Yu ◽  
Xingyu Chen ◽  
Shihan Kong

Author(s):  
Yung-Sheng Chen ◽  
Kun-Li Lin

Eye–hand coordination (EHC) is of great importance in the research areas of human visual perception, computer vision and robotic vision. A computer-using robot (CUBot) is designed for investigating the EHC mechanism and its implementation is presented in this paper. The CUBot possesses the ability of operating a computer with a mouse like a human being. Based on the three phases of people using computer with a mouse, i.e. watching the screen, recognizing the graphical objects on the screen as well as controlling the mouse to let the cursor approach to the target, our CUBot can also perceive information merely through its vision and control the mouse by its robotic hand without any physical data communication connected to the operated computer. The CUBot is mainly composed of “Mouse-Hand” for operating the mouse, “mind” for realizing the object perception, cursor tracking, and EHC. Two experiments used for testing the ability of our EHC algorithm and the perception of CUBot confirm the feasibility of the proposed approach.


Author(s):  
Naglaa Fathy Sayed Ahmed Abou-Eid

ABSTRACT The aim of the paper is to explore the effectiveness of Communication Skills Training Program in Developing Some Visual Perception and Writing Readiness Skills for Kindergarten Children. A semi-experimental, pre-post-test for the two groups (experimental and control) was employed. Participants were 30 children. They aged between 5 and 5.7 years (M=5.3 years, SD=0.984). Two groups were constructed with equal number of children for each (experimental = 15 children, of which 9 were girls, while 6 were boys, and control = 15 children, of which 10 were girls, while 5 were boys). A program was applied to the experimental group (12 sessions; 3 sessions per week; each session lasts for 20-25 minutes, total period or application = 4 weeks, that is a month). Results advocate the effectiveness of the employed raining program.


1989 ◽  
Vol 33 (20) ◽  
pp. 1468-1469

A workshop entitled “Visually Guided Control of Movement” was held at NASA Ames Rersearch Center on June 26 - July 14, 1989. The workshop brought together individuals with diverse backgrounds related to the areas of the visual perception and control of motion. During the workshop, participants designed and conducted experiments using NASA Ames flight simulation research facilities. These studies contrasted participants' alternative theoretical approaches to the visual control of self motion. Panel members, drawn from the workshop's participants, will discuss their approaches to the study of the control of self motion and will present interpretations of the outcomes of the workshop.


2007 ◽  
Vol 18 (10) ◽  
pp. 917-921 ◽  
Author(s):  
Emily Balcetis ◽  
David Dunning

Two studies demonstrated that the motivation to resolve cognitive dissonance affects the visual perception of physical environments. In Study 1, subjects crossed a campus quadrangle wearing a costume reminiscent of Carmen Miranda. In Study 2, subjects pushed themselves up a hill while kneeling on a skateboard. Subjects performed either task under a high-choice, low-choice, or control condition. Subjects in the high-choice conditions, presumably to resolve dissonance, perceived the environment to be less aversive than did subjects in the low-choice and control conditions, seeing a shorter distance to travel (Study 1) and a shallower slope to climb (Study 2). These studies suggest that the impact of motivational states extends from social judgment down into perceptual processes.


1964 ◽  
Vol 96 (1-2) ◽  
pp. 166-166 ◽  
Author(s):  
A. J. Thorsteinson ◽  
G. K. Bracken ◽  
W. Hanec

The development of the Manitoba Horse Fly Trap was motivated initially by the need to control tabanid flies in spite of a lack of effective and safe insecticides. This objective could be realized only through a study of orientation behaviour in the field. Starting with the old observation that tabanids are attracted to darkcoloured objects (‘targets’), the influence of colour of target, colour of background, size, shape and movement of target were investigated. The most attractive target proved to be a glossy black (or red) sphere about 24 inches diameter, about three feet above the ground. In the course of its development the trap has provided interesting insights into visual perception of tabanids which will require physiological confirmation. The attractant principle is overwhelmingly visual. An initial surmise that thermal radiation contributes to the attraction significantly has been superseded, although a thermal stimulus may be involved in the behaviour of the flies after they reach the trap. Since only the hemato- phagous sex (females) is attracted to the trap, the behaviour involved appears to be teleologically related to host seeking activity. On arrival at the trap the insects fly in the space around the target and eventually move upward into the no-return chamber at the apex. When the trap is used for fly control the apical chamber is not needed if the interior of the trap is treated with a powerful, residual insecticide. In addition to its potential uses in conjunction with insecticides for control of tabanids, the Manitoba Horse Fly Trap can be used to study the correlation of flight activity with meteorological conditions as well as the seasonal and geographical distribution of tabanid species. The trap can be used effectively in the study of Stomoxys behaviour and control. If the sphere is replaced by a wick containing organic sulfides, blow flies can be attracted to it in considerable numbers.


1968 ◽  
Vol 27 (2) ◽  
pp. 451-456 ◽  
Author(s):  
Gordon R. Alley ◽  
Donald L. Carr

This study investigated the effects of an extended, systematic training program of sensory-motor activities on sensory-motor, visual perception and concept-formation tasks. 10 identical criterion measures were utilized as pretests and posttests in conjunction with a 2-mo. training program. Both the experimental and control groups' mean scores on all criterion measures reflected improvement from pretest to posttest administrations. However, when the analysis of covariance was applied, no significant differences were evident between the adjusted posttest mean scores of the two groups.


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