Air Survey: Multispectral

Our group utilizes a SpecTerra Systems DMSV Mk-1 sensor. It is a compact, lightweight, four CCD sensor system for acquisition of high-resolution digital imagery. Its high spatial and spectral resolution enables four pre-selected bands to be acquired simultaneously in the visible to near infrared region (0.4 - 1.0 microns). Spatial resolution is in the range of 0.5-4.0 meter pixels, depending on height above terrain. Image size is 578 by 740 pixels.

Our group utilizes a SpecTerra Systems DMSV Mk-1 sensor. It is a compact, lightweight, four CCD sensor system for acquisition of high-resolution digital imagery.

The instrument uses band-pass filters, typically with bandwidths from 10-80 nanometers (nm). Standard filters emulate Landsat Thematic Mapper imagery. The four filters are centered on 485nm, 560nm, 660nm, and 830nm.

This project was a multi-year project to collect airborne multispectral imagery over an environmentally sensitive area.

This project was a multi-year project to collect airborne multispectral imagery over an environmentally sensitive area. The data were collected at 2-meter pixels using a 4-channel DMSV instrument and mosaicked into a seamless image using proprietary software, ERDAS Imagine, and Photoshop. The imagery were collected over a timespan of 7 years, and were used for multitemporal comparisons and land cover classification during environmental remediation.

The Air Survey Library

AIR SURVEY
45180 Business Court
Dulles, Virginia 20166-6706
Phone: (703) 471-4510
Toll Free: 1 800 272-6299
Fax: (703) 471-6810