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Custom Ortho-Mosaics : Pictometry can create custom ortho-mosaics based on the resolution of the imagery captured. If a custom ortho-mosaic is desired, the full specifications will be spelled out in a separate addendum. It is important to note that while the ortho-mosaic can be created at any pixel resolution, up or down, creating an ortho-mosaic with a pixel size smaller than the ground sample distance of the input imagery will not contain any more information than the resolution of the input imagery. In other words, if you create a six- inch ortho-mosaic from one-foot imagery, even though the pixels will be six-inch, the overall image data resolution will still only be one-foot. For this reason, it is important to ensure the base imagery purchased meets or exceeds the resolution requirements of any ortho-mosaics you need. Under-sampling, for instance creating a one-foot ortho -mosaic from six- inch resolution imagery, is not a problem and generally produces very good results . Pictometry also has licensed partners who can create an ortho-mosaic product that can be certified to a particular accuracy. In general , ortho-mosaics from Pictometry ' s neighborhood orthogonal imagery can meet NMAS 1 : 1200 ( 1 . 0-meter RMS error at 95 % confidence interval) in relatively flat terrains or areas with good elevation data . For areas with highly variable terrain or areas with poor elevation data, this number generally drops to NMAS 1 : 2400 (2 . 0-meter RMS error at 95 % confidence interval) . Certified ortho-mosaics can be created from Pictometry ' s community orthogonal imagery, but only under certain capture parameters . As such, it is important to include any custom ortho-mosaic requirement with the image capture requirements such that the community orthogonal imagery can be captured in a way consistent with certification requirements . General Specifications : Orthogonal Images Sensor Size Pixels : 4872 X 3248 in a Landscape orientation. Image Format Industry- standard image format with proprietary image trailer, including JFIF (JPEG) , TIFF, and BMP . Image Quality Images will have an unobstructed view of the ground. In controlled airspace around airports, etc . , and in areas of rapid elevation changes , the image footprint sizes and resolutions may vary. There may be varying degrees of ground illumination and color variations due to lighting and cloud shadows . Measurement Accuracy <0 . 5 % measurement error, excluding user pixel selection error Pixel Placement Accuracy Pictometry provides a visualization system and therefore does not certify image accuracy. However, some Pictometry customers have done their own certification on the Pictometry data after delivery and have shared their results . On average , customers have been seeing better than 1 . 0-meter RMS error at a 95 % confidence level (NMAS 1 : 1200) for orthogonal imagery over relatively flat terrain or in areas with accurate elevation data, and 2 . 0-meter RMS error at a 95 % confidence level (LAMAS 1 : 2400) for more varied terrain or in areas with poor elevation data . However, Pictometry does not guarantee these accuracies and your results may vary. Sensor Orientation Pictometry utilizes an IMU (Inertial Measurement Unit) , ground station post-corrected differential GPS , and Kalman filtering to achieve a high degree of positional and directional accuracy. Sensor Positional Accuracy mean 15cm absolute Sensor Directional Accuracy 0 . 015 degrees absolute (roll/pitch) 0 . 035 degrees absolute (heading) Ortho-Rectification The images are ortho-rectified to back out the optical deviations of the capture system and the variations due to elevation changes (utilizing the best DEM data available, including customer provided DEM data) , resulting in geographically square pixels aligned to a rectilinear grid. This grid can be one of any number of coordinate systems, including Latitude/Longitude, State Plane , UTM, and more . The desired coordinate system should be specified in the contract, or a default coordinate system will be used . Image Export JFIF (JPEG) , TIFF, BMP EFS software can be utilized to export the images into any of the above industry-standard formats . The orthogonal images can optionally be re-projected during this export process, and an associated geography file can be created as well for use in importing the images into GIS mapping software . CONFIDENTIAL Page 3 of 4 03012011 Not for distribution to third parties