Richard Stark


This study focused on the operation of the RIT Digital Imaging and Remote Sensing Lab's synthetic image generation (DIRSIG) software model in the 0.4 to 1.0 urn wavelength region. The overall intent was to create a baseline for future DIRSIG activity. This was achieved by modifying the infrared based software to account for the characteristics of visible energy, and then evaluating the model's overall performance. A modification was made to the model's radiance algorithm by dividing surface reflectivity into a combination of view angle dependent diffuse and specular components. Additionally a practical method was developed for generating these values. Performance evaluation of the model was accomplished by collecting truth data from an actual scene, generating an applicable reflectivity database, synthetically generating images of the scene, and then comparing the image data with the truth data. The generated images provided a good representation of the visible energy interactions occurring in a scene.

Library of Congress Subject Headings

Infrared imaging--Computer simulation; Infrared technology--Simulation methods; Remote sensing--Data processing; Image processing--Digital techniques

Publication Date


Document Type


Department, Program, or Center

Chester F. Carlson Center for Imaging Science (COS)


Schott, John

Advisor/Committee Member

Fairchild, Mark

Advisor/Committee Member

Salvaggio, Carl


Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works. Physical copy available through RIT's The Wallace Library at: TA1570.S72 1993


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