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.