XSIGNO is an entry-level solution to photogrammetry. A photo-measurement software to determine 3D coordinates and distances from a collection of digital photographs.

A measurement is done by taking pictures from changing views of a measurement object. By placing an orientation board into the field of view, the position of the camera is determined. Its spatial coordinate is measured by marking a point of interest in two or more views.

By fitting planar surfaces to the coordinates, you can mark and extract textured models. Export your model in Collada format to your favorit CAD or interior planning software. With the provided flashplayer, you can present your Collada models in the internet.

The photogrammetic key functionality is provided though the "Measure" menue. The elemental operations are the Calculation of the camera orientation and translation for each image, triangulation to measure 3D coordinates of marked points, and the calibration of the image distortion via bundle adjustment.
The info panel gives basic guidance throught the workflow. For example, after importing or adding images the first processing step is to call the image segmentation tool to find marker coordinates. The property display below the image collection shows the most important image and camera parameters. The group header additionaly shows the camera distortion parameters. It is possible to edit the focal length of images individually, resulting in a new group or editing the focal length of the group header, resulting in a change of the focal length for all images.
The scene, marker and coordinate worksheets show the numeric values of the camera pose for each image, the marker pixel coordinates and the measured coordinate table. Only the marker table is editable, allowing to numerically set the pixel position or enter coordinates of a reference point.

Benefits
1. Turn your camera into a flexible measurement tool to measure distances and angles.
2. Measure small objects in macro mode or buildings, if the object fits into the field of view it can be measured.
3. Photographs are the ideal documentation to your measurement, you can easily explain or forward your intent. By publishing as 3D PDF document, you can easily forward your measurement by Web or Email.
4. With a lasermeter it is easy to miss an important figure, using photo-measurements allow to extract additional figures from the available images.
5. You do not need to touch the object. You can measure the position of points that are fragile or out of reach.

Features
1. Image processing to extract the pixel position of orientation markers.
2. Calibration of barrel effect in wide-angle photography.
3. Bundle adjustment algorithm to determine camera orientation and 3D coordinates.
4. Distance and angular measurements.
5. Publish as 3D PDF for Acrobat Reader.
6. Export to Collada format for exchanging data with Google Sketchup or other interior design and CAD Software.

Requirements
* A digital camera supporting the EXIF 2.2 metadata standard.
* Computer with minimum 512MB RAM and MS Windows.
* An orientation board.

The license of this software is Free Trial Software, you can free download and get a free trial.