Rate of information processing in visual perception: Some results and methodological considerations.

1969 ◽  
Vol 79 (2, Pt.2) ◽  
pp. 1-16 ◽  
Author(s):  
Charles W. Eriksen ◽  
Terry Spencer
Keyword(s):  
Information Processing ◽  
Visual Perception ◽  
Methodological Considerations

The Effects of Ethyl Alcohol on a Driver's Driving Skill, Visual Perception, Risk Acceptance, Choice Reaction Times and Information Processing Rates

1974 ◽  
Vol 18 (2) ◽  
pp. 116-116
Author(s):  
Helmut T. Zwahlen
Keyword(s):  
Information Processing ◽  
Standard Deviation ◽  
Visual Perception ◽  
Reaction Times ◽  
Driving Skill ◽  
Alcohol Condition ◽  
The Mean ◽  
Risk Acceptance ◽  
Standard Deviations ◽  
Choice Reaction Times

Twelve subjects (20–37 years old) were tested in the laboratory and eleven out of these were also tested in a car in the field, first under a no alcohol condition and then under an alcohol condition (approximately 0.10% BAC). In the laboratory the subjects simple and choice reaction times for two uncertainty modes were measured and their information processing rates (3 bits unsertainty) were determined. In the field the subjects driving skill for driving through a gap with 20 inches total clearance at 20 MPH was measured, as well as their static visual perceptual capabilities and risk acceptance decisions for a 46 feet viewing distance using psychophysical experimental methods. Based upon the driving skill measure (standard deviation of centerline deviations in the gap), the mean of the psychometric visual gap perception function and the mean of the psychometric gap risk acceptance function, the “Safety Distance” and the “Driver Safety Index” (DSI) were obtained. Based upon a statistical analysis of the data we may conclude first that the effects of alcohol (approximately 0.10% BAC) vary widely from one subject to another (slighthly improved performance to highly impaired performance) and that the changes in the group averages of the means and standard deviations of the psychometric visual perception and risk acceptance functions, the driving skill distributions, the “Safety Distances” and the DSI's for the subjects (although all changes in the group averages are in the expected direction) are statistically not significant (α = .05). Second, the group average of the means of the choice reaction times for the subjects increased by 5% under the alcohol condition (statistically significant, α = .05), but more important the group average of the standard deviations of the choice reaction times for the subjects increased by 23% (statistically significant, α = .05). The group average of the information processing rates for the subjects decreased by 3% (statistically not significant, α = .05) under the alcohol condition. A system model in which the system demands on the driver are represented in terms of choice reaction times is used to demonstrate that the increase in performance variability (expressed by the standard deviation of choice reaction times) under the influence of alcohol provides a much better explanation for the higher accident involvement than the historically most frequently used rather small increase in average performance (expressed by the mean of choice reaction times).

scholarly journals Eye Gazes Based on Associative Relevance Assist in Decision Making Processes during Scene Perception

2016 ◽  
Vol 8 (2) ◽  
pp. 74
Author(s):  
Gufran Ahmad
Keyword(s):  
Decision Making ◽  
Information Processing ◽  
Eye Movements ◽  
Visual Perception ◽  
Eye Tracking ◽  
Scene Perception ◽  
Cognitive Dynamics ◽  
Movement Data ◽  
Business Applications ◽  
Decision Making Processes

<p>Research studies on eye movements in area of information processing task, such as scene perception have recently advanced towards understandings of underlying visual perception mechanism and human cognitive dynamics. Besides, business applications of eye tracking are endlessly revealing groundbreaking trends based on practical scenarios. In this study, we conducted a number of eye tracking experiments to establish our hypothesis that the eye gazes based on the associative relevance found within the contexts of scenes during scene perception significantly supported the processes of decision making. The collected eye movement data from participants who viewed artistic scenes discovered that the tracks of eye gazes traversed along the existing associative relevance among the elements of scenes for decision making processes. These experimental evidences confirmed our hypothesis that the eye gazes based on associative relevance assisted in decision making processes during scene perception.</p>

Computer Vision Based Classification on Commercial Videos

2017 ◽  
pp. 105-135
Author(s):  
B. Rebecca Jeya Vadhanam ◽  
Mohan S. ◽  
V. Sugumaran ◽  
Vani V. ◽  
V. V. Ramalingam
Keyword(s):  
Computer Vision ◽  
Information Processing ◽  
Technology Integration ◽  
Visual Perception ◽  
Embedded Systems ◽  
Vision System ◽  
Three Dimensional ◽  
Computer Vision System ◽  
Essential Information ◽  
Utility Concept

Computer vision is a study which is concerned with automatic mining, analysis, perception, and extraction of the essential information from a single frame or image and a sequence of frames. It focuses on the development of automatic visual perception systems to reconstruct and interpret a three-dimensional scene from two-dimensional images through the properties of the structures in the scene. This is a challenging task for the contemporary computer vision system. Hence, this chapter explores the essential information, processing, analysis, and understanding necessary for computer vision. This enables users to retrieve product-based advertisement content and efficient browsing of desired shows. The final goal of this chapter is to design electronic embedded systems focused on technology integration with a domestic utility concept.

An ergonomical approach to Berlin's method of graphically displaying multivariate data

1989 ◽  
Vol 5 (3) ◽  
pp. 235-245
Author(s):  
Wim Adams
Keyword(s):  
Information Processing ◽  
Visual Perception ◽  
Numerical Data ◽  
Information Design ◽  
Matrix Elements ◽  
Empirical Verification ◽  
Cognitive Information Processing ◽  
Cognitive Information ◽  
The Subject ◽  
Shape And Size

This paper, first presented at the Information design conference in December 1986, discusses Bertin's method of displaying numerical data by means of an interactive graphical matrix. In the study the need for empirical verification of theoretical statements is stressed. The ergonomical approach that is chosen for this purpose is subdivided into three major stages: visual perception, motor operations and cognitive information processing. The subject of this paper is mainly restricted to the first stage of visual perception, which is elaborated through some psychophysical experiments concerning the shape and size of symbols that are suited to be used as matrix elements.

My image of the retina

1969 ◽  
Vol 2 (1) ◽  
pp. 25-64 ◽  
Author(s):  
Maarten A. Bouman
Keyword(s):  
Information Processing ◽  
Visual Perception ◽  
Visual Information ◽  
Digital Processing ◽  
Visual Information Processing ◽  
Thermodynamic Theory ◽  
Processing Theory ◽  
Absorption Of Light

The initial act for visual perception is the absorption of light in the photo-pigment of the receptor end-organs. Since both light and the nervous message have a quantal structure, any theory of visual information processing should in principle be a digital processing theory. And not only in principle, since we know for certain that in many situations the number of quanta is rather restricted, so that an over-all thermodynamic theory cannot but fail to adequately describe visual facts.

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