In Architecture, visual perception represents the communication between observers and buildings. In this Book, perceptual concepts has been used to perform a quantitative analysis for visual identity and form character. Omdurman has been chosen as a case study for its importance as the cultural heart of Sudan. The traditional residential architecture of Omdurman (especially mud Architecture) represents the local architecture in the region. A mathematical model has been applied to judge the visual performance using logarithmic equations to precisely calculate visual forces in the field of view...