Loren Data Corp.

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COMMERCE BUSINESS DAILY ISSUE OF JANUARY 27,1995 PSA#1271

Defense Mapping Agency, ATTN: AQWM MS D-5, 4600 Sangamore Road, Bethesda, MD 20816-5003

76 -- CONTROLLED IMAGE BASE SOL DMA800-95-R-5001 DUE 040395 POC Contact Vance Cathell, Contract Specialist, 301-227-1904, Phil McConnell, Contracting Officer, 301-227-2334, FAX 301-227-4793 The Defense Mapping Agency requires the production of an imagery database. The requirement is for an unclassified broad area database of imagery with sufficient resolution (5 to 10 meter) to serve as an image backdrop for mission profile development and to provide geopositioning and perspective view generation. The data base must be in a format compatible with National Imagery Transmission Format Standards (NITFS) and in a compressed form on CD-ROM or 8 mm Data Cartridge Tapes. This database, or Controlled Image Base (CIB), will be developed from available digital imagery, which could include Satellite Pour l'Observation de la Terre (SPOT), LANDSAT, or other sources. SPOT imagery will be Level 1A Panchromatic scenes with a pixel resolution of 10 meters. Each SPOT image or scene covers a minimum surface area of 60 km by 60 km and a maximum of 60 km by 81 km depending on the viewing or incidence angle of the High Resolution Visible (HRV) push-broom scanners which collect the imagery. LANDSAT has a pixel resolution of 30 meters and must be resampled to 10 meters. However, it covers nine times the area covered by one SPOT Scene. Other sensors may also be used when ephemeris data is available. Uncorrected imagery is used to take advantage of a rigorous satellite model that is applied with ground control and tie points in a block restitution over multiple images, and an advanced resampling technique that preserves the original radiometric and geometric fidelity of the acquired scene radiance. Individual images are geometrically corrected and orthorectified to the Equal Arc-second Raster Chart/Map (ARC) system used by DMA's ARC Digitized Raster Graphic (ADRG) product. DMA Level I Digital Terrain Elevation Data (DTED) must be used to correct image displacement due to terrain relief. In general, CIB will not be done if there is no DTED unless approved by DMA or in flat terrain areas. Multiple images are mosaicked, radiometrically balanced, resampled and Compressed, 8 to 1 using the Vector Quantization (VQ) Algorithm to form frame files formatted in accordance with Raster Product Format (RPF). Multiple CIB Frame Files are delivered on CD-ROM in an output format directly compatible with National Imagery Transmission Format (NITF) Standards. A second version of the data is required on 8 millimeter data cartridges (EXABYTE) for entering the CIB data to the DMA Database. This version of CIB will be radiometrically balanced and will be generated before the compression step. It is anticipated that a benchmark must be successfully completed in order to be considered for award. A requirements type contract is anticipated to include one base year (the remainder of FY95) and four option years. It is anticipated that the unit of procurement will be by the cell, with an estimated 720 cells to be ordered during the duration of the contract if all options are exercised, although crises support could effect that estimate. The delivery schedule will be determined by delivery order. Only written requests for the solicitation will be accepted. No verbal requests will be accepted. This requirement is subject to the availability of funds. (0025)

Loren Data Corp. http://www.ld.com (SYN# 0439 19950126\76-0001.SOL)


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