=9- 
Rosenbruch, K.J., 1976, "Considerations of Image Geometry and Image 
Quality of Lenses in Aerial Mapping Cameras," Invited Paper, Com- 
mission I, International Society for Photogrammetry, XIII Congress, 
Helsinki. 
Schowengerdt, R.A., Antos, R.L. and Slater, P.N., 1974, "Measurement 
of the Earth Resources Technology Satellite (ERTS-1) Multi-Spectral 
Scanner OTF from Operational Imagery," Image Assessment and Specifi- 
cation, Proceedings of the Society of Photo-Optical Instrumentation 
Engineers, vol. 46, pp. 247-257. 
  
Schowengerdt, R.M., 1976, "A Method for Determining the Operational 
Imaging Performance of Orbital Earth Resources Sensors," Proceedings 
of the American Society of Photogrammetry, 42nd Annual Meeting, 
Washington, D.C., pp. 25-62. 
  
Slater, P.N., 1974, "Specifications for Photographic and Electro-Optical 
Remote Sensing Systems," Effective Systems Integration and Optical 
Design, Proceedings of the Society of Photo-Optical Instrumentation 
Engineers, vol. 54, pp. 95-103. 
Slater, P.N., 1975a, "Use of MTF in the Specification and First-Order 
Design of Electro-Optical and Photographic Imaging and Radiometric 
Systems," Optica Acta, vol. 22, pp. 277-290. 
Slater, P.N., 1975b, "Basic Differences in the Quality of Analog and 
Digital Imagery from Photographic and Solid-State Array Remote Sensing 
Systems," Proceedings of the American Society of Photogrammetry, Fall 
Convention, Phoenix, pp. 139-153. 
Tiziani, H., 1976, "The Use of Optical Transfer Function for Assessing 
the Quality of Optical Systems," Presented Paper, Commission I, 
International Society for Photogrammetry, XIII Congress, Helsinki. 
Welch, R., 1974a, "MTF Analysis Techniques Applied to ERTS-1 and Skylab-2 
Imagery," Image Assessment and Specification, Proceedings of the 
Society of Photo-Optical Instrumentation Engineers, vol. 46, pp. 258- 
262. 
  
Welch, R., 1974b, "Skylab-2 Photo Evaluation," Photogrammetric Engineering, 
vol. 40, no. 10, pp. 1221-1224. 
Welch, R., 1975, "Photogrammetric Image Evaluation Techniques," Photo- 
grammetria, vol. 31, no. 5, pp. 161-190. 
Welch, R., 1976, "Skylab S-190B ETC Photo Quality," Photogrammetric 
Engineering and Remote Sensing, in press. 
  
  
Welch, R. and Halliday, J., 1973, "Imaging Characteristics of Photogram- 
metric Camera Systems," Photogrammetria, vol. 29, pp. 1-43. 
  
Welch, R. and Halliday, J., 1975, "Image Quality Controls for Aerial 
Photography," Photogrammetric Record, vol. 8, no. 45, pp. 317-325.