EvidenceDB forensic services
Organize, distribute and store all the evidence necessary to win cases that are the result of criminal actions, personal injury and workman’s compensation claims. EvidenceDB is built to your specifications and it is scalable to meet the most rigorous security requirements.
Convert proprietary video and audio format file
CCTV surveillance video is recorded on a staggering variety of both analog and digital formats. There are between 3,500 and 4,000 different models of Digital Video Recorders (DVRs) and Network Video Recorders (NVRs) in use in North America.
Many of these DVRs and NVRs archive their recordings to proprietary formats that are notoriously difficult to work with, or even view.
We can convert even the most difficult proprietary video recordings to a standardized format for immediate viewing, and also to a completely lossless format suitable for investigative image processing and submission as evidence in a court of law.
Although they have been almost completely replaced by digital video, there are still analog VHS tape based systems in use that record multiple camera views onto a single tape using a device known as a "multiplexer". When the tape is played back using an ordinary VCR, the viewer sees only a rapidly switching cacophony of images.
We can separate the multiplexed cameras into individual camera views in separate files for review, playback in a legal setting, and even forensic image processing.
The Evidence DB platform is customized to organize all of your vital case evidence files. Our objective is to simplify your ability to organize and safeguard the integrity of all your video, audio, photographic and document evidence.
Scientifically validated image processing
When you have poor quality video or photographs, we may be able to improve the quality, sometimes dramatically. We use use scientifically validated, peer reviewed algorithms; unlike what some companies offer and refer to as "enhancement", the objective is to reveal details not previously visible, not to make the video or images "pretty".
Common problems that can benefit from forensic video/image processing include motion blur, optical blur (lens out-of-focus), dark images, sensor noise, repetitive patterns that make it difficult to see the subject in the image, aliasing artifacts (commonly referred to as "pixelization") from improperly enlarged digital images, "shaky" hand-held video that can be stabilized, and "grainy" images caused by deficiencies in the camera and/or recording system.
Metadata and authenticity analyses
Digital photograph and video files frequently contain a treasure trove of hidden information such as the actual date and time taken, and even geospatial "GPS" location information. Video files may have been subjected to undisclosed editing to remove details that would undermine your opponent's case or had the date and time altered.
Digital photographs may have been tampered with to exaggerate apparent injuries or damage to property. We've documented cases in which photographs submitted by an insurance claimant to substantiate property contained metadata that revealed the photographs were actually taken at the client's home after the reported theft.
To avoid disclosing information that would help make digital forgeries harder to detect, we won't go into detail about authenticity methods here, but all procedures will be detailed in any report of metadata and/or authenticity studies.
Close range photogrammetry
In many cases, it is possible to actually extract three dimensional measurements from two dimensional video and images. We use two different methods of close range photogrammetry.
The first, live superimposition (commonly referred to as "reverse projection") is a method in which the image containing people or objects requiring measurement are superimposed with a live view of the same camera, and a measurement scale is positioned into the precise location of where the person or object had previously been.
The second, and more accurate method, called stereo photogrammetry, is a practical implementation of epipolar geometry.
Taking high resolution images with a calibrated camera of the same area in the image requiring measurements, but from two different perspectives, the examiner defines points that are common to all three images, and obtains a single linear measurement of a known object.
The software uses these points to establish a coordinate system, and incorporates the reference measurement to allow measurement between points, distance from the plane defined as the ground to measure height, and even area measurements on a defined plane.
The Evidence DB platform is customized to organize all of your vital case evidence.
Our objective is to simplify your ability to safeguard the integrity of all video, audio, photographic and document evidence.