Geographical survey system indicates observation points that are shrinkingly retracting using colored marks, in general view image of survey field

摘要

A display displays arbitrary observation points (Q1-Q3) with respect to predefined reference points (P1-P3) of a survey field, in a general-view image of the survey field based on positional relationship of standard surveying coordinate system and survey field image. An indication unit indicates the observation points that are shrinkingly retracting using colored marks. Independent claims are also included for the following: (1) survey assistance apparatus; and (2) survey support program.