3
Factors that Affect Perception
• Light:            the spectrum of energy that
                       illuminates the object surface
• Reflectance:   ratio of reflected light to incoming light
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• Specularity:    highly specular (shiny) vs. matte surface
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• Distance:        distance to the light source
•
• Angle:            angle between surface normal and light
                        source
• Sensitivity       how sensitive is the sensor