Visual perception error

The longer exposure time of abnormalities may result in less perceptive errors made by the reviewer. Lee and Pickhardt compared the exposure time of 20 polyps in both an axial 2D method and a conventional endoluminal 3D method. They concluded that the opportunity of polyp detection, including both exposure time and distance of polyp visualization, is significantly greater for the 3D endoluminal display. 

Input errors, which occur during the input sensory and perceptual processes (e.g., visual perception and auditory errors)... 

However, even with the presence of many color modes that are applied in many systems, total color matching is difficult to achieve because its assessment depends on visual perception. Therefore, a margin of error exists and is dependent upon the hardware, software and the human visual perception. In daily practice, medical silicone skin color matching is very difficult task to achieve. Therefore, more research is needed. A logical way to approach this problem is by determining the range of skin colors at different locations and then search for the best color formulation that produces the best color match. The objective of this study... 

The color measurement of fried foods is traditionally done either instrumentally or visually through trained panelists. Human evaluation is quite subjective, tedious, and subject to error of perception. Hence, it is least recommended for the color determination of fried foods. The instrumentation procedure involves the use of color spaces and numerical values to create, visualize, and represent color in 2D and 3D spaces (Trusell et al., 2005). Food color is usnally measured using the L a b color indices. This is the international standard color measurement technique, adopted by the Commission Internationale d Eclairage (CIE) in 1976. L is a measure of luminance or lightness on a scale of 0-100, a is a measure of greenness to redness, and b is a measure of blueness to yellowness. This technique provides measurement similar to how human eye perceive colors (Hunt, 1991). 

Viewing Strategies and Perception 110 Vision Basics 110 Visual Search 111 Interpretation Errors 112 What Attracts Attention 113 Reader Variability and Expertise 114... 

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