Abstract: An improved system and method for analysis and display of geo-referenced imagery overlaid with information such as vegetation health, land cover type and impervious surface coverage. In one aspect, an image analysis system creates a map of a selected area of land by overlaying information extracted from an image or images onto a base map or image. In another, a spatially-indexed image database is maintained having a plurality of images corresponding to a plurality of geographic locations; a user-specified geographic location is accepted through an interactive graphical user interface; a user-specified extraction analysis is accepted for application upon one or more images; a user-specified extraction analysis is automatically executed to extract overlay information from such images corresponding to user-specified geographic location(s); and extracted overlay information is overlaid on a geo-referenced image, and displayed though a graphical user interface.

Abstract: A television image processing system in which images from any composite or component RGB video source (26) may be fed into a signal processing circuit (60) where they are digitized for processing in real time, then reconverted to analog form and displayed on an RGB analog television screen (22). During this process, users can capture a frame of the digitized video at random and store it in digitized format as a full size image in the memory (32) of the graphics coprocessors (20). In order to store live or full motion video (26) in the memory (32), the memory read signal from the graphics coprocessor is intercepted (84) in response to a grab control (54) and a memory write signal substituted therefore, with the captured video then being written written to the memory (32) from the video buffer (86) through which it passes. Multiple variable size windows may be created and overlayed in the composite display (22), with each window being independent in size and content.