(The Cognitech AutoMeasure software is sold as part of the Cognitech Tri-Suite software package, and is not sold separately.)
Advantages of Forensic Stereo-Photogrammetry with Cognitech® AutoMeasure™:
Cognitech® PhD scientists have pioneered the court certified use of forensic mathematical photogrammetric tools in the United States and international courts of law since 1992.
The revolutionary algorithms of the Cognitech® AutoMeasure™ software have been developed by a team of Cognitech® PhD Scientists. This Cognitech® technology received recognition and is in use today by the most respected United States government photogrammetry-oriented organization: the National Geospatial Agency, who is using it for the highly accurate Geo-Measurements.
While using the Cognitech® AutoMeasure™ software, the individuals and the vehicles captured on the evidence video/photo can be photo-metrically identified or ruled out even if the original surveillance cameras were moved or removed (not possible with outdated Reprojection Method).
Accurate measurements from the crime scene can be performed by the technician at any time by using stored scene images and the camera calibration parameters (even if the scene does not physically exist anymore). During the scene investigation, it is impossible to predict all of the required linear and areal measurements.
The Cognitech® AutoMeasure™ software can do photogrammetry without ANY manual measurements, using only a computerized use of stereo-point correspondences between scene images. There is no need for the measuring
tape and the time consuming manual measurements.
The Cognitech® AutoMeasure™ software accurately computes any linear dimensions in the image/frame, human height, shoe size, length/height of the vehicle, the angles between any lines and surfaces (trajectories). The software additionally computes user-selected spot areas, camera location/angle and more.
The Cognitech® AutoMeasure™ software is the only photogrammetric software naturally integrated with Cognitech Video Investigator™ and VideoActive™ video/image enhancement and analysis tools, the most advanced software in the world.
|Calibration Patterns are
captured and automatically
recognized. Cameras are
Automatically calibrated and
Optical Distortions are
tabulated to be
used to remove
(e.g. barrel and
distortions) in any
|Using the estimated Camera
Distortion parameters, the
removes the optical geometrical
distortions on all scene
images. These distortions, if
uncorrected, are harmful to
Compare how the ‘barrel’
distortion is resolved along
the red line ’spherical bend’
|Project Steps Manager: First Intelligent
Measurement Project Assistant
and Tasks Tracker. The Steps Manager
directs the user through and keeps a count
of all the necessary steps to perform
distortion corrections, cameras calibration,
and the measurement steps.
|The First Intelligent
Contextual Help Automatic
Assistant, adapts to the Steps
Manager current state.
The Contextual Help Assistant
gives the user detailed graphical
instructions on how to perform
each technical task
scheduled by the Steps
Manager. The revolutionary
combination of the Steps
Manager and the Contextual
Help significantly reduces
end-user training time, and
end-user errors. The entire
operation can be trained in
just one concentrated training.
|The Point Selection and Measurement Assist
Tools: variety of ergonomic user interfaces
and visualization tools to help with
accurate data inputs
|The Virtual Magnifying Glass is
provided to assist with sub-pixel
accurate points and features
selection. It results in the
measurements accuracy increase
(Crime) Scene Linear
Images of the Scene are collected and selectively Feature Stereo-Matched using Measurement Tools. Afterward, the distances between any pairs of points on the ‘calibrated planes’ can be accurately auto-measured. This revolutionary technique allows the end-user to measure the height of a person in the ‘Evidence’ image even if the floor has no visible markings (as is common with the low resolution video recordings).
|Accurate Photogrammetric Height measurement with Virtual Ruler:
(Crime) Scene Images are collected during the ‘investigation’ stage.
The ‘Evidence’ image/video-frame is Stereo-Matched to the Scene Images.
The original ‘Evidence’ camera may be missing or moved and is not required at all. The ‘Suspect’ Height and other Linear measurements are accurately performed with the
Virtual RulerTM . The higher the resolution of the ‘Evidence’ image is, then the Height measurement will be more accurate. Since there is no need for the original undisturbed evidence camera during investigation stage, this method of Photogrammetric Height measurement is far superior to the much less accurate, much less practical, and often impossible to perform (if cameras moved or removed), the scientifically outdated method of ‘Reprojection/Superimposition.’
|The Measurement Table is saved with all of the measured points and their accurate 3-D
position coordinates. The
‘interesting’ pairs of points
are computed and saved in
the table. The Revolutionary
Projective Error Estimation is
performed to assist in
eliminating data input (points
|The first accurate
User selected Areas
curves, on the stereo-
calibrated planes, are
and Stains quantitative
Given the sufficient captured
photogrametrically with AutoMeasure™.
Putting it all together: any Linear
Distances, Angles between chosen
lines, Plane-to-Point Distances,
Camera-Location in the Evidence
Image, selected ’spots’ Area
measurements are available to be
computed by the Stereo-
Photogrammetric analysis of the
Evidence image/video-frame vs.
Scene Images. The AutoMeasure™
Photogrammetric tools allow for a
virtually unlimited combination of
required geometrical calculations to be performed from the Evidence
images and video frames.
Several Scientific Peer-reviewed references for
Cognitech® AutoMeasure™ methods:
The 1st in scientific literature peer-reviewed revolutionary publication on
the use of photogrammetric methods for forensic image/video
C. Jensen and L. Rudin, Measure: An interactive Tool for Accurate
SPIE Vol. 2567, Investigative Image Processing, editors: S. Bramble, et.
al. pp.73-83, San Diego, 1995
L. Rudin, P. Monasse, and P. Yu, Epipolar Photogrammetry: A Novel
Method for Forensic Image Comparison and Measurement, Proc. of
IEEE Int. Conf. on Image Processing, Genoa, Italy, pp. 385-388, 2005.
Lenny Rudin, Pascal Monasse, Ping Yu, Fast and Photogrammetric
Accurate3-D Crime Scene Reconstruction, American Academy of
Forensic Sciences, 59th Annual Meeting Forensic Image and Video
Processing Workshop, 2007
L. Rudin, et. al US Patents Pending, 2006, 2007
Minimal system requirements
CPU: Pentium III or above
Memory: 512 MB RAM (1 GB Recommended)
Hard Drive: 100MB freespace for installation
OS: Windows XP (SP2 Recommended)
Additional Software: Adobe Acrobat Reader 5 or above
Ports: One USB port available (for authorization dongle key)
Drive: One CD ROM or DVD-ROM