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Photogrammetry and Forensics Primer

This article is intended at introducing lawyers, accident Reconstructionist and those who work in the insurance industries to photogrammetry and how it can be used in field of forensics. Improved understanding of this unacquainted measurement tool can often bring significant particulars to light that can reinforce a case or totally converse the course of a trial in your favour. Photogrammetry is the science of taking geometric measurements from photographs. “Photogram” is a photograph and “metry” is the science of measuring. In the meantime a photograph takes images from the 3D world and projects it on a flat 2D image plane, we miss the depth information. On the other hand, photogrammetry can be seen as the procedure by which we do the contrary. By knowing some information about the camera that took the photographs and by having two or more photos of the same object from a dissimilar viewpoint, we can have some improvement in 3D information back. In some cases, it is likely to take measurements from a single photo as well, but there are some criteria that need to be met.

The philosophies of photogrammetry date back more than a few hundred years. Contemporary day photogrammetry is still an emerging science and the majority of people are ignorant of what photogrammetry is and what it can do for them. Accordingly, many are not taking benefit of capturing and preserving geometric data in their photos and others are simply not aware that they can extract 3D measurement data from their existing photos. There are different methods to a photogrammetry investigation based on the number and quality of photos. Each way has its compensations in correctness and straightforwardness as well as what can really be output for visual presentation. In a properly documented scene for which photogrammetry has been taken into account. All details can be recreated in 3D and the accuracy of measurements can be simply stated as being limited by the size of photos taken and by how well the objects appear in the photos. Majority of people are responsible for taking photos at accident or crime scenes don’t know, is that they could be capturing entire sets of 3D measurement data by simply adjusting their techniques to make their photos “photogrammetry friendly”.

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Canada’s Largest Consulting Forensic Engineering and Fire Investigation Firm. They deliver the facts. Origin and Cause provides cross-disciplinary forensic expertise to insurance companies, law firms, independent adjusters, manufacturers and corporate risk managers. We have been a trusted leader for over 25 years, helping our clients discover the truth by determining the facts through expert investigation. Our team has completed over 30,000 cases, so you know you are working with highly trained, extremely skilled professionals with years of hands-on experience. Their reputation is built on our integrity and commitment to the facts. We guarantee unbiased opinions based on factual evidence determined through scientific methodology, examination and laboratory testing. Every investigation is led by a forensic expert with an average of 25 years’ experience. For more information, refer to their website- http://www.origin-and-cause.com/

About sujoydhar

Sujoy Dhar is a business and technology and blogger. He is driven by the need to be creative and says that writing for various web properties allows him to stay up to date on one of the most rapidly evolving industries around. Each day provides Dhar with a new opportunity to educate readers about tech news and advances that help change the world for the better.

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