Abstract: A method of determining a direction of a target in a ground referential, the method including: acquiring an image of a scene including the target and a control object using a camera; obtaining position data of the camera and control object using a geo-spatial positioning system; determining a control direction from the camera to the control object in the ground referential using the position data; estimating a camera attitude in the ground referential using the control direction; determining the target direction from the camera to the target using the estimated camera attitude and a pixel position of the target in the image.

Abstract: A method of georeferencing a first image of a scene acquired from a first imaging device based on at least one second image of the scene acquired from a second imaging device. The method includes obtaining data indicative of an eligibility parameter for one or more areas of the scene; selecting one or more pivot areas among the one or more areas of the scene, wherein the eligibility parameter of the pivot areas satisfy a predefined criterion; for at least some of the selected pivot areas, identifying tie points for the first and second images; and solving the external orientation of the first image using the identified tie points and a first imaging device model.

Abstract: A method of determining a direction of a target in a ground referential, the method including: acquiring an image of a scene including the target and a control object using a camera; obtaining position data of the camera and control object using a geo-spatial positioning system; determining a control direction from the camera to the control object in the ground referential using the position data; estimating a camera attitude in the ground referential using the control direction; determining the target direction from the camera to the target using the estimated camera attitude and a pixel position of the target in the image.

Abstract: A method of georeferencing a first image of a scene acquired from a first imaging device based on at least one second image of the scene acquired from a second imaging device. The method includes obtaining data indicative of an eligibility parameter for one or more areas of the scene; selecting one or more pivot areas among the one or more areas of the scene, wherein the eligibility parameter of the pivot areas satisfy a predefined criterion; for at least some of the selected pivot areas, identifying tie points for the first and second images; and solving the external orientation of the first image using the identified tie points and a first imaging device model.

Abstract: The present invention defines a quantitative measure for expressing the spatial (geometric) accuracy of a single optical geo-referenced image. Further, a quality control (QC) method for assessing that measure is developed. The assessment is done on individual images (not stereo models), namely, an image of interest is compared with automatically selected image from a geo-referenced image database of known spatial accuracy. The selection is based on the developed selection criterion entitled “generalized proximity criterion” (GPC). The assessment is done by computation of spatial dissimilarity between N pairs of line-of-sight rays emanating from conjugate pixels on the two images.