Forensic Video and CCTV Enhancement
A careful application of Video Forensic methods to provide Video and CCTV enhancement will maximise the evidentiary value of your recordings. Media Forensics provides in-house advanced non-destructive and repeatable forensic enhancement, analysis and reporting of all video formats. This includes post-production processing and enhancement of surveillance and covert device recordings. We deliver an easy to follow readable and comprehensive expert report in PDF format for court and/or client presentation.
Digital Video Recording Procedures
CCTV video recordings are typically made in a Manufacturer’s proprietary format even if they state they are in MP4 or H.264/H.265. Some manufacturers do provide a choice of output formats. However, these rarely comply fully with recognised standards.
Non-compliant standards require additional processing to allow the video to be edited for enhancement in recognised quality video editing applications. A digital video recording may require transcoding and re-digitised into an uncompressed format prior to the enhancement process.
As with still images and photographs, video is heavily compressed which restricts our ability to enhance and highlight any fine detail as it may not have survived the compression process.
As digital video file formats and physical media can vary greatly, please contact us to further discuss your needs and our capabilities. We can assist you to create a working copy of your original digital image file, and in creating a Hash file for you to hold to later establish authenticity of the finished product.
We can assist you in your configurations and provide directions to enable your successful and secure upload. Media Forensics will provide secure and confidential in-house storage of your material whilst undertaking the work requested to provide you with your product (e.g. paper print or digital file) in a format and media type of your choice in a timely manner.
Video Enhancement Capabilities and Processes
Video and CCTV forensic enhancement capabilities include but are not limited to:
- Tracking and Stabilising Images or Frames focused on desired subjects.
- Crop and resize to bracket desired objects.
- Enhance entire video or selected frames.
- Associate and align audio tracks to video.
- Read, convert and write from and to almost any video codec and media format.
- Deblurring, sharpening and deinterlacing.
- Noise, dust, scratch and pattern interference reduction.
- Obscuring (redacting) by pixelation and/or blurring of unwanted images, objects or areas e.g. faces, number plates, identifying personal features when covert operations are involved.
- Multiple frame image averaging and integration into super-frames (effectively improving resolution).
- Photogrammetry, object height, scale and position measurements.
- Chroma, luminance, hue and saturation corrections.
- Selective colour and lighting adjustments to highlight object of interest.
- Lighting, shadow, highlight adjustments.
- Playback speed adjustments.
- Adding or removing of closed captioning and logos.
- Rendering and blending.
- Perspective and Transform adjustments to fix skew, lens distortion, obscure angle distortion.
- Seamless image stitching / panorama views.
Analogue Video Tape Handling
Analogue video tapes are getting scarce, but occasionally pop up. These are replayed, digitised and captured using up to the highest quality 10 bit uncompressed 1080HD video (1.5Gb/sec).
If the tapes are in need of repair or cleaning, this is done prior to the digitisation process. Once the recording is in an uncompressed digital file format we can undertake to recover, restore and/or extract the information you require.
As each case will differ in time and effort, please contact us for further information. A Hash file would then be created from the digital file for you to hold to later establish authenticity of the finished product.