uSMART Softcopy Close Range

Map 3D Models in ANY coordinate system on your PC.

Close Range Photogrammetry is integrated in the uSMART Softcopy module enabling users to map objects (e.g. buildings, bridges, vehicles, etc.) in the coordinate system of their choosing e.g. a "ground" coordinate system WITHOUT any swapping of coordinate axis etc. in uSMART Softcopy. What this in turn means is that numerous photographs around an object are all combined into a single user (e.g. ground) coordinate system for final model or object reconstruction. This can then in turn be viewed from any angle, e.g. DEMs created for volumes etc. Below is a screen capture of a stereo pair of images of a house with the control points superimposed on the images.

With the cost of non-metric digital cameras becoming more affordable (e.g. a 12 Mega Pixel camera costing approximately $1000 U.S.), Close Range photogrammetry is a really attractive low cost option for modelling and mapping objects.

Close Range MineUser Coordinate Systems (UCS)
With the UCS, "unusual" systems are catered for e.g. projection onto a cylinder but still maintaining the height component. This can be used for example very effectively to "roll out" an opencast circular mine. Volumes etc. can then be computed to a much higher degree of accuracy. The image on the left is an example of a stereo pair of images on the face of a mine.

Softcopy Grid Calibration
Determine distortion corrections and dynamically apply these correction to (for example) low cost desktop scanners and non-metric cameras.

 

Future additions to further capitalise on this branch of photogrammetry:
Addition of free parameters into the spatial resection - here the "unknowns" in a non-metric camera are computed from "models" with more control than the minimum. These "unknowns" for example are the focal length, lens distortion etc. In uSMART Close Range the absolute minimum control required is 3 fully controlled points (XYZ) for single model control. Clearly more would generally be used e.g. 4 or even 5. With more unknowns e.g. unknown focal length, more control is required. However if a single site is to be measured with numerous photographs all within a relatively short period of time, the determinants of the unknowns can be adopted for further images.