Traditional Culture Encyclopedia - Photography and portraiture - What are the contents of quality inspection of digital orthophoto map?
What are the contents of quality inspection of digital orthophoto map?
This paper mainly studies the content of quality inspection of digital orthophoto map. Digital orthophoto map data inspection mainly includes five aspects: spatial reference system, accuracy, image quality, logic and attachment quality inspection. Specific content: (1) spatial reference system inspection includes three aspects: geodetic datum, elevation datum and map projection. (2) accuracy check. Accuracy check mainly checks the error in the coordinates of image points and the edge difference between adjacent DOM images with the same name. (3) Image quality inspection. Image quality inspection mainly includes the ground resolution of orthophoto, the cutting range of digital orthophoto map, color quality, image noise, image information loss and so on. (4) logical consistency check. Logical consistency check mainly includes data file organization and storage, data format, data file integrity and data file naming. (5) Quality inspection of accessories. The quality inspection of accessories mainly includes the completeness and correctness of metadata, quality inspection records, quality acceptance reports and technical summaries.
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