It is important to speak with photogrammetry expert and provide them with all the images to be reviewed for specific entirely. In most cases, leading photogrammetry experts will provide an initial consultation on the quality and application of photogrammetric analysis to the photo at no charge. You can refer to https://cognitech.com/cognitech-trisuite-14/automeasure-14 for crime scene measurement technique in great detail.
Following is the list that can be used as a quick check to determine whether the photogrammetric analysis may be possible.
1. There are some photos of the object to be measured from a different camera.
2. There are objects in the scene that has been known reference dimension or dimensions can be obtained after the photo was taken (eg, there is a table in a photograph of the length, width and height can be obtained).
3. The object to be measured is clearly visible in the photo and have distinguishable features (eg, the object should not be blurred or out of focus).
4. The size of the object to be measured needs to be sufficiently large relative to the entire image (for example, a skid mark that indicates a small mark on the way the photos in the distance, can not be measured with adequate accuracy).
5. Photos were taken with the same camera and the same focal length (eg zoom) setting.
The above is just a quick check and does not meet one or more of the above criteria does not mean photogrammetric analysis is impossible. Each case is specific and must be reviewed by an expert to determine whether or not it is valid.
Photogrammetric can bring great value to lawyers and accident reconstructionists who need the benefits of "better information" in a court case or an accident reconstruction report.
Having accurate data that may not be considered against the board or simply discarded as impossible to obtain can often be the difference in winning or losing the case or settlement.
Scenario reconstructionists and forensic analyzers conduct thorough analyses of collision and then reconstruct the scenario to determine the grounds of collision and the factors that contributed in the incident, including the roles of the drivers and their vehicles involved, the roadway drove, and the environment surrounding the crash scene.
Laws and principles working behind the physics and engineering, such as linear momentum, employment, energy and kinematics is the rear base of this analysis and can utilize computer software to calculate the useful data and figures.
With the use of powerful but inexpensive and specialized software, such as best photogrammetry software experts can do crime scene reconstructions easily. Photogrammetry program is a typical example of the computer software used by accident reconstructionists.
Accident reconstruction provides a comprehensive analysis of professional witnesses can be present in court. Car accident reconstruction is done in cases where deaths and injuries involved.
Data were collected from accident reconstruction that has proven useful in redesigning and developing new and safer roads and highways, as well as improving vehicle design and safety mechanisms.
Forensic professionals, special law enforcement units or private consultants do the reconstruction. Accident scene and investigation visits all involved in the inspection vehicle collision scenarios and data retrieval. Collection of evidence such as scenes photos and videos, physical measurements, the testimony of witnesses and legal depositions are several basic methods to do the investigation.
Car accident reconstruction analysis involves the collection and processing of data, evaluation of the probability and the possible hypotheses, scenarios recreation model creation and simulation software.
After a series of analysis is complete, forensic engineers prepare police reports, diagrams and computer-generated animation to build expert testimony and conclusions about the accident.