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1. (WO2018104700) METHOD AND SYSTEM FOR CREATING IMAGES

Pub. No.:    WO/2018/104700    International Application No.:    PCT/GB2017/053410
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Tue Nov 14 00:59:59 CET 2017
IPC: G06T 3/40
H04N 5/232
Applicants: GAIST SOLUTIONS LIMITED
Inventors: REMDE, Stephen
TANATHONG, Supannee
SMITH, William Alfred Peter
Title: METHOD AND SYSTEM FOR CREATING IMAGES
Abstract:
A method of generating an orthomosaic image of a geographical survey area is disclosed. The method comprises: a. recording a set of still images of the survey area using a land-borne camera, in which the camera has an optical axis that is angled downwardly with respect to a surface of the survey area and recording a geographical position corresponding to each image; b. comparing pairs of partially overlapping images to identify common features in the image to derive a model of the motion between the images; c. calculating a pose in respect of each image describing where the camera was in world coordinates and where it was looking when the image was captured; d. projecting each image onto a ground plane to create a set of image tiles; and e. stitching together a plurality of image tiles to create an orthostatic image corresponding to an area that is present in a plurality of the images recorded in step a. Procedures for detectin overlaps in images and identifying common features are also disclosed.