Project Management

    With reference to the scene below (left), you are provided with the following information: • The luminance within the two square regions (those with the black outlines) is the same. This may be more readily observable when shown in isolation, as in the depiction to the right of the scene below. • If both the upper and lower surfaces had 100% reflectance, the luminance would be greater in the upper square region compared to the lower square region. Use that information when completing the following questions: a) (3 marks; AEL: 1 or 2 sentences) Compare the illumination of the upper and lower square regions in the scene above (left). b) (3 marks; AEL: a few sentences) Describe how illumination, luminance, and reflectance are related, and use this relationship to compare the reflectance of the upper square region and the reflectance of the lower square region in the scene above (left). c) (3 marks; AEL: 1 or 2 sentences) Using the term lightness constancy, explain why many observers see the upper square region as darker than the lower square region in the scene above (left). d) (3 marks; AEL: 1 or 2 sentences) In the scene above (left), the two surfaces are positioned in a way that is analogous to the “roof” condition in the study by Bloj, Kersten, & Hurlbert (1999) that was discussed in tutorials. Name and describe the additional aspect of the illumination would need to be considered if the surfaces were instead positioned in a way that was analogous to the “corner” condition in Bloj, Kersten, & Hurlbert (1999). Page 5 of 10