Glossary for Geospatial Science

aspect ratio:� The ratio of horizontal scale to vertical scale for printing or display.� For graphics and image processing, square cells/pixels are best (aspect 1:1).� Some display devices have a non-square aspect, which causes images to appear stretched or distorted.� Standard broadcast video has an aspect ratio of 4:3, which must be corrected in any framegrabbing or other digitization process.