Title: A TWELVE BAND AIRBORNE DIGITAL VIDEO IMAGING SYSTEM (ADVIS)
Cavazos Iii, Isabel
Submitted to: Remote Sensing of Environment
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: May 14, 1998
Publication Date: N/A
Interpretive Summary: This manuscript describes a multispectral airborne digital video imagery system (ADVIS) used as a remote sensing research tool. It is a system that has the capability of generating four synchronized real-time false color composite images. The multispectral black and white image components of the color composite images provide basic information to understand the association between the land cover features reflectivity and the color tonal renditions produced on color imagery, which is important to the interpretation of the resulting imagery. Also, the ADVIS multispectral image acquisition may determine the best band(s) for characterizing and/or detecting problems of the various natural resources.
This paper describes an airborne digital video imaging system (ADVIS) used as a remote sensing research tool. The ADVIS is comprised of a 12 charge coupled device (CCD) analog video camera system and a computer equipped with a single multi-channel digitizing board. The system cameras are equipped with various narrowband (6.5 to 12.6 nm bandwidths) interference filters to acquire images within the visible/near-infrared (NIR) (400-1000 nm) spectral waveband. The ADVIS multi-channel capturing board is capable of obtaining 12 analog video inputs that are readily converted into digital images having 640 by 480 pixels resolution. The digitizing board has four RGB banks which have the capability of generating four synchronized real-time false color composite images from any selectable three-band combination among the 12 cameras, as keyed by the RGB inputs of the digitizing board. The computer system has a two gigabyte storage capacity hard drive that can store 2,000 RGB 24-bit color images. The black and white (B&W) image components (spectral bands) of the composite images provide basic information to assist in the interpretation of the color composite imagery and to qualitatively understand the interaction of ecological parameters with the electromagnetic spectrum. The ADVIS multispectral image acquisition may determine the best band(s) for characterizing and/or detecting problems of the various natural resources. Image examples are shown demonstrating its potential as a remote sensing research tool.