Forensic Science Applications
What can the DeltaSphere-3000 3D Scene Scanner do for your work?
(Click on any image below for a larger version.)
The image below is a scan of a room. The operator selected a vertical field of view of 65° and a horizontal field of view of 360°. Each vertical 'scan line' contains approximately 860 points, and there are 4800 of these scan lines, resulting in approximately 4 million points.
A scan like this takes approximately 12 minutes. (The operator chose not to scan the ceiling but could have. This would have captured all the data overhead in the same amount of time. The range accuracy is better than 1/4in. The data that appears curved, like the edge of the floor or the top of the closet, results from displaying this 3D data as a 2D projection. These are not distortions in the data. When displayed in 3D these edges display correctly.
This image shows the control software for the
DeltaSphere-3000 and the same scanned data displayed in the image above. This is
more than an image - it contains the 3D coordinates for every point in the image.
As soon as this data is acquired
you can measure the distance between any two points. The small circle on the
right highlights a single point identified on the wall. The circle on the left highlights the location
of the cursor (not shown) at a point on the foot. The circle below shows the distance between that point on the
wall and wherever the cursor is moved in the scene. In this case, the foot is
26.69 inches from the wall. New SceneVision
software makes this operation even simpler.
Using the scanned data and images captured, you can create a 3D model of the entire scene, or of objects in the scene. This image shows the data, which has been processed and simplified (using PolyWorks® software from InnovMetric), as a 'wire frame' model . This model can be viewed from any viewpoint in a graphics viewer. It can also be displayed with full color captured at the scene.
This image shows the same data viewed with actual scene color 'mapped' to the model above. This is not just an image - it's a full, 3D model. The DeltaSphere comes with tools for mapping color to the 3D data.
For the lastest information on the DeltaSphere and SceneVision, visit www.deltasphere.com.