home home Staff Contact
Forensic Protection - Services Forensic Protection - Rates Forensic Protection - FP_System Forensic Protection - Process

FAQ - What files do I send and what's the best way?

Free evaluation...what's the catch?
Can you explain your service options?
What files do I send to and what's the best way?
How do you enhance audio and video files?
How do you detect tampering and alterations?
What is your Reseller program?
What is your privacy policy?
Technology and suggestions
Glossary of terms

What files do I send and what's the best way?
For the best results, always provide your files in their native format. DO NOT CONVERT OR EDIT YOUR FILES BEFORE SENDING THEM TO US. This is because common formats toss out details to save space (lossy) and, every time you resave a file, you degrade its forensic value. The loss in quality is similar to a fax of a fax. Copying a file is fine, just not re-saving or editing it.

Simply copy the desired files directly from the Digital Video Recorders (DVR), Network Video Recorders (NVR) or audio recorder on to a computer thumb drive or data CD/DVD. Whenever possible, send us the raw files so we can provide the maximum benefit. If you absolutely must "export", "save as", or "convert" video files, then try EVERY option available on that recorder, and then mail or upload all of these versions so we can select the best format to work with. If you need assistance, call (818) 375-1700 or email us.

Best results are achieved from videos that:
• Are too dark, or too bright, to see events, objects or people.
• Have video noise or streaks that prevent a clear view of the objects or persons of concern.
• Are out of focus or suffer from focus and/or motion blur.
• Have slatted fencing, or other foreground object, that prevents a full view of a moving person.
• Need higher resolution to identify monetarily stationary people or cars.
Minimal results are achieved from videos:
• When the object to be enhanced is extremely small, fuzzy and barely distinguishable.
• When working from a recording of a recording (i.e. camcorder aimed at DVR playback screen).
Still images can always be extracted from any video

NERDY NOTE: MPEG (e.g. MPG, MP2, MP4, MOV, VOB, h.263, h.264 or h.265 file extension) is the dominant choice for surveillance video. The MPEG container offers superior size/quality ratios by periodically saving the full camera image ("i" frame) and then only saving "what changed" ("p" and "b" frames) until the next full image. On playback, the video is reconstituted into a complete scene for every frame. Each compression iteration attempts to reduce file size by detecting repetitive image patterns (lossless), removing details the human eye may not notice (lossy), and replacing details with predictive estimates (potentially very lossy). With so many variants, each manufacturer can, and often does, create their own compression method. Unless you have the relevant CoDec (compression - decompression) software, your computer will not know how to read the video file's contents and the video will seem unplayable. We have specialized tools that can resolve this issue.

Have a question or suggestion? Contact us

Copyright © Forensic Protection
QuickLinks | Main page | Case study | Media | FAQs | Contact us