Abstract: A system may include a processor configured to: obtain an image of an airport terminal chart; based on a latitudinal set of characters, determine a latitude for each line of latitude; based on the latitude for each line of latitude and a first image distance between the lines of latitude, determine a first ratio of latitudinal degrees between the lines of latitude to the first image distance; based on a longitudinal set of characters, determine a longitude for each line of longitude; based on the longitude for each line of longitude and a second image distance between the lines of longitude, determine a second ratio of longitudinal degrees between the lines of longitude to the second image distance; and output information associated with the first ratio, the second ratio, the determined latitude for each line of latitude, and the determined longitude for each line of longitude.

Abstract: A system may include a processor configured to: obtain an image of an airport terminal chart; based on a latitudinal set of characters, determine a latitude for each line of latitude; based on the latitude for each line of latitude and a first image distance between the lines of latitude, determine a first ratio of latitudinal degrees between the lines of latitude to the first image distance; based on a longitudinal set of characters, determine a longitude for each line of longitude; based on the longitude for each line of longitude and a second image distance between the lines of longitude, determine a second ratio of longitudinal degrees between the lines of longitude to the second image distance; and output information associated with the first ratio, the second ratio, the determined latitude for each line of latitude, and the determined longitude for each line of longitude.

Abstract: A method for generating thumbnails is disclosed. The method may include receiving an area map, and chart data having a geographical information set. The method may include generating a plurality of panels having one or more panel corners based on the chart data. The method may include projecting the one or more panel corners onto the area map, defining one or more corners of a plurality of areas to be extracted. The method may include determining an extraction mapping for each area to be extracted, the extraction mapping configured to map the plurality of areas to be extracted to a plurality of thumbnail panels. The method may include extracting area map data from each area to be extracted to generate a plurality of thumbnail panels using the determined extraction mapping. The method may include generating a thumbnail display by combining each thumbnail panel of the plurality of thumbnail panels.