LJT & Associates, Inc.    Digital Orthophotography Production     LJT & Associates, Inc. provides high quality digital ort...
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Digital Orthophotography Production

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Digital Orthophotography Production

  1. 1. LJT & Associates, Inc. Digital Orthophotography Production LJT & Associates, Inc. provides high quality digital orthorectified mosaic imagery products to state, county, municipal and federal governmental agencies in the areas of forestry, agriculture, transportation, energy providers and public utilities for a variety of land management applications. The company’s U.S. based fleet of aircraft collects high-resolution aerial imagery in natural color or color infrared. LJT offers the following Digital Orthophotography Products: EMERGE™ OrthoMosaic EMERGE™ OrthoMosaic is designed for projects that cover an area of land where there is a need for consistent, tonally balanced and seamless orthorectified imagery. Image mosaics are produced by assembling all the digital image frames collected during each flight mission into an orthorectified, seamless, and radiometrically balanced image map. Two collection modes are available for this product: Linear – for features like rivers, pipelines, highways, and utility line corridors. The medium-format sensor EMERGE™ utilizes is well suited to linear data acquisition. Film or large-format digital systems are inefficient for long linear projects. The EMERGE™ system captures enough imagery to cover most linear targets with 1 or 2 flight lines without a great deal of excess data to be processed. This helps to increase the speed of delivery while keeping prices low. Area – for features like, cities, counties, states, or any large or small contiguous tract of land. EMERGE™ DigitalStereo EMERGE™ DigitalStereo is produced by collecting digital image frames with at least 60% endlap along each flight line over the project area. Stereo image pairs are delivered along with GPS position points, IMU orientation data and camera model information so the imagery can be imported into most commercial softcopy analytical programs. EMERGE™ Advantages •Nationwide collection capability •Multispectral digital imagery products available in: •Resolutions from 6 inches to 2 meters •Natural color or color infrared •8 or 12 bit dynamic range •Single frame or stereo imagery •For use in both GIS and remote sensing applications •No license restrictions on any EMERGE™ products •On site rapid response capabilities •Quick turn-around time LJT & Associates, Inc. 512 Herndon Parkway Herndon, VA 20171 Tel: (703) 481-3000 x12 http://www.ljtinc.com / Copyright © 1994-2006 LJT & Associates, Inc. All rights reserved.

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