Automated geospatial image mosaic generation with automatic source selection

摘要

Automatic generation of a mosaic comprising a plurality of geospatial images. An embodiment of the automatic mosaic generation may include automated source image selection that includes comparison of source images to base layer image to determine radiometric similar source images. Additionally, an embodiment of an automatic cutline generator may be provided to automatically determine a cutline when merging two images such that radiometric differences between the images along the cutline are reduced. In this regard, less perceivable outlines may be provided. Further still, an embodiment of a radiometric normalization module may be provided that may determine radiometric adjustments to source images to match certain properties of the base layer image. In some embodiments, when processing source images, the source images may be downsampled during a portion of the processing to reduce computational overhead. Additionally, some highly parallel computations may be performed by a GPU to further enhance performance.

主权项

1. A method for automatic source image selection for generation of a composite orthomosaic image from a plurality of geospatial source images, comprising:
accessing a plurality of geospatial source images corresponding to an area of interest; comparing the plurality of geospatial source images to a base layer image, wherein each of the plurality of geospatial source images are compared to a corresponding portion of the base layer image that is geographically concurrent with a respective one of the plurality of geospatial source images; and selecting at least one of the plurality of geospatial source images for use in the orthomosaic image based on the comparing.