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A Model To Predict The Reflectance From A Concrete Surface As A Function Of The Sun-Object-Image Angular Relationship, George C. Grogan
A Model To Predict The Reflectance From A Concrete Surface As A Function Of The Sun-Object-Image Angular Relationship, George C. Grogan
Theses
A study was made of the variation in the reflectance of a concrete sample as the sun-object-image angular relationship was varied. The research work was performed in the controlled conditions of a laboratory so that atmospheric effects could be neglected. Reflectance measurements were taken from a. concrete sample whose surface roughness had been measured. Both specular and diffuse illumination in the red (630 - 680nm) wavelength region of the visible spectrum were measured. A model which can be used to predict the reflectance value for a given sun-object-image angular relationship was developed. Actual reflectance measurements taken outdoors agreed to within …
Derivation Of The Transformation Relationship Of Pseudo-Invariant Features Of Two Landsat Images, Jeffrey R. Sefl
Derivation Of The Transformation Relationship Of Pseudo-Invariant Features Of Two Landsat Images, Jeffrey R. Sefl
Theses
The purpose of this effort was to determine the relationships of the spectral radiance distributions of pseudo-invariant features for a selected pair of Landsat images. The relationships for the four bands (band 4 through band 7) were determined to be linearly related. The transformation equations will map one images brightness values on to a second images brightness values.
Investigation Of The Radiometric Integrity Of The Theogram After Its Raster Scan Lines Are Removed Through Spatial Filtration, Joan Allamena
Investigation Of The Radiometric Integrity Of The Theogram After Its Raster Scan Lines Are Removed Through Spatial Filtration, Joan Allamena
Theses
Thermograms are records of density levels which correspond to apparent temperatures. The process of thermographic imaging is based on Plank's law which relates temperature to radiance. It begins with the collection of quantum energy which is then converted to voltage. The voltage powers a light source to expose the recording material of the thermogram. Atmospheric effects must also be taken into consideration. The relationship which takes all variables into account can be found in appendix A.