Service · Forensic video enhancement
Forensic video enhancement that stays true to the original
Forensic video enhancement is the documented processing of footage to make recorded detail easier to see. We correct exposure, reduce noise, stabilise and deinterlace video, and log every step so the result can be repeated and checked against the original.
Expert Witness Code of Conduct
Reports prepared in line with court rules on expert evidence
SWGDE best practice
Recognised methods for digital and multimedia evidence
Repeatable methods
Documented workflow that another examiner can reproduce
Hash-verified custody
SHA-256 recorded on receipt and at every hand-off
Strictly confidential
Encrypted transfer and secure storage of evidence
Overview
What is forensic video enhancement?
Forensic video enhancement, also called clarification, uses documented processes to make detail already present in a recording easier to see. It works only with what the camera captured, and every step is logged so another examiner could repeat it and reach the same result.
Most footage that needs enhancing is dark, noisy, shaky or heavily compressed. Correcting exposure, reducing noise, stabilising movement and combining several frames can all bring out detail that is hard to see at normal playback. What enhancement cannot do is add information the camera never recorded. A face or number plate covered by only a few pixels stays a few pixels, however it is processed. We assess the footage first and tell you honestly what enhancement can and cannot show.
Techniques we use
Enhancement techniques and what they do
We choose each technique for the problem in the footage, apply it to a working copy, and record the settings in the processing log.
Exposure and contrast
Levels, curves and gamma adjustments that lift detail from dark or washed-out footage.
Noise reduction
Spatial and temporal filters that reduce grain and flicker while keeping edges intact.
Frame averaging
Combining several frames of a still subject so random noise cancels out and detail remains.
Stabilisation
Tracking a point in the scene to remove camera shake from handheld or vibrating footage.
Deinterlacing
Separating interlaced fields to remove the combing that appears on moving subjects.
Sharpening and deblurring
Careful edge enhancement and blur correction, applied only where it does not create artefacts.
Perspective and lens correction
Correcting wide-angle distortion and skew so shapes and positions can be read accurately.
Region of interest
Magnifying an area of the frame, with the enlargement method stated so it is not mistaken for added detail.
Problems we work on
Common footage problems, and what helps
Each problem has techniques that can help, and a limit beyond which no processing can recover detail. We tell you both before any work begins.
Dark and night footage
Underexposed recordings where people and vehicles are lost in shadow.
Limit: infrared night footage records in greyscale, so colours of clothing or vehicles cannot be recovered.
Grainy and noisy footage
Speckled, flickering images, often from cheap sensors or low light.
Limit: frame averaging works only on subjects that stay still across the frames being combined.
Shaky footage
Handheld phone recordings, body-worn cameras and vibrating mounts.
Limit: stabilising crops the edges of the frame, and cannot fix blur within each frame.
Interlaced footage
Older and analogue CCTV, where moving subjects show comb-like lines.
Limit: each separated field holds half the vertical resolution of the full frame.
Motion blur
Fast-moving people or vehicles smeared across the frame.
Limit: severe blur cannot be reversed. Often the best result is the sharpest single frame.
Small or distant subjects
Faces, plates or objects that occupy only a small part of the frame.
Limit: enlarging an image makes it bigger, not more detailed. A few pixels stay a few pixels.
Related video forensic services
Services often used with enhancement
Enhanced footage is usually part of a wider examination. Each of these services has its own page.
CCTV Footage Analysis
Event reconstruction, multi-camera timelines and identification questions from security camera footage.
CCTV footage analysis →
Speed, Height and Distance Analysis
Photogrammetry and frame-timing analysis to measure speed, height and position from video.
Speed, height and distance →
Video Decoding
Playback of proprietary formats so enhancement starts from the highest-quality version of the file.
Video decoding →
Common questions
What lawyers and insurers ask us about enhancement
Short, direct answers to the questions that most often decide whether enhanced footage can be relied on.
Can blurry or dark CCTV footage be enhanced?
Often, within limits. Dark, noisy and shaky footage can usually be made clearer, because the detail is recorded but hard to see. Detail lost to low resolution, heavy compression or severe blur cannot be brought back by any process.
We start by assessing the native file: its resolution, compression, frame rate and the size of the subject in the frame. That tells us early whether enhancement is likely to help with your question. Every step we then apply is recorded in a processing log like the example below, so another examiner can repeat the work and check the result.
Does enhancement change the evidence?
No. The original file is never altered. We record its hash value on receipt, enhance a verified working copy, and present every enhanced image beside the original, so the court can see exactly what was done.
| Safeguard | Why it matters |
|---|---|
| Verified working copy | The hash value proves the original file is unchanged after the work is done. |
| Processing log | Every operation and setting is recorded, so another examiner can repeat it. |
| Recorded pixels only | We use processes that act on what the camera captured, not tools that generate new detail. |
| Side-by-side exhibits | Each enhanced still is shown with its original frame, so nothing is presented out of context. |
| Stated limitations | The report explains what the enhanced image can and cannot be relied on to show. |
Can enhancement reveal a face or number plate?
Only if the face or plate was recorded at a usable resolution. Enhancement can make recorded features clearer, but it cannot reveal detail that occupies only a few pixels or was removed by compression.
Where a face or plate is too small to resolve, enhancement may still establish clothing, build, vehicle type, colour and direction of travel. We assess the number of pixels covering the subject before starting, and tell you honestly whether the footage can answer your question. More on CCTV footage analysis.
Why don’t you use AI upscaling?
Because AI upscaling invents detail. It predicts what a sharper image would probably look like, based on other images it has learned from. The result can look convincing, but it is not what the camera recorded.
For evidence, that difference matters. An AI-generated face or plate may resemble the real one, or it may not, and there is no way to tell from the output. We may use AI-assisted tools for tasks such as finding frames of interest, but never to generate detail in an exhibit. If footage has already been AI-enhanced by someone else, we can examine it. More on video authentication.
Instructing us
What to send us, and what you receive
Enhancement depends on starting from the best-quality version of the footage. Please contact us before sending footage so we can arrange a secure transfer.
What to send us
- The original export or native video file, not a converted, screen-recorded or messaged copy
- Any player software exported with the footage
- The time or frames you need enhanced
- What you need to see, such as a face, a plate, clothing or an action
- Any enhanced versions already made, and who made them
- The camera or device that recorded the footage, if known
- The specific questions you need answered
If an enhanced version is already in circulation, please send the original as well, so both can be compared.
What you receive
An independent expert report, prepared in line with the Expert Witness Code of Conduct, that sets out:
- InstructionsThe questions we were asked to address
- Materials examinedEvery file, with its hash value
- Quality assessmentResolution, compression and frame rate of the footage
- Processing logEvery operation and setting, in order
- Findings and opinionsWhat the enhanced footage shows
- LimitationsWhat the enhanced footage cannot be relied on to show
- ExhibitsEnhanced stills and clips, each beside its original
Our process
How forensic enhancement works
We tell you whether enhancement is likely to help before you commit. You receive a written scope and quote before any work begins.
Initial assessment
We review a sample and tell you whether enhancement can help with your question.
Secure evidence transfer
Encrypted transfer or original media by courier. SHA-256 hash recorded on receipt.
Quality assessment
Resolution, compression and frame rate checked to set realistic limits.
Enhancement and review
Processing on a working copy, logged step by step, then peer reviewed.
Report and testimony
Enhanced exhibits beside originals, with court attendance if required.
A single short clip can often be enhanced within days. Longer footage or multiple cameras take more time, and urgent court deadlines can be accommodated.
See the full process7–30
days to overwrite
The best enhancement starts with the original
Every copy, conversion or phone recording of a screen loses detail that enhancement cannot recover. Many recorders also overwrite footage within 7 to 30 days, so secure a native export now and keep any player files.
Frequently asked questions
Video enhancement FAQs
Answers to the questions we are asked most often about forensic video enhancement.
See all FAQsEnhanced stills and video are commonly presented in court when the process is transparent. Courts look for the original to be preserved, every step to be documented and repeatable, and each enhanced image to be shown with its original. Whether particular evidence is admitted is a matter for the court.
No. Enhancement can make footage clearer, but it cannot raise its true resolution. Tools that appear to turn low-resolution video into high definition add invented detail, which is not reliable evidence. We will tell you honestly what your footage can show.
Frame averaging combines several frames of the same still subject, such as a parked car. The random noise differs from frame to frame and cancels out, while the real detail stays the same and becomes clearer. It does not work on subjects that move between the frames.
Yes. We never alter the original file. Its hash value is recorded on receipt and checked again at the end, which proves that the file you supplied is identical to the one we return.
A single short clip can often be enhanced within days. Longer footage, several cameras or a full expert report take more time. We confirm a timeframe in writing before work starts, and urgent court deadlines can be accommodated.
Fees depend on the length and quality of the footage, the number of clips or stills needed and whether court attendance is required. We offer fixed-fee and hourly engagements, and assess a sample before quoting. You receive a written quote before any work begins.
Related services
Other video and image forensic services
Enhancement often sits alongside questions of authenticity, still images or expert evidence. These services are provided by the same team.
Video Forensics
Analysis of CCTV, dashcam, body-worn and phone video.
All video forensic services →
Video Authentication
Testing footage, including AI-enhanced copies, for editing and manipulation.
Video authentication →
Digital Image Forensics
Analysis and authentication of photographs and still images.
Digital image forensics →
Expert Witness
Independent expert reports and court testimony on enhanced footage.
Expert witness services →
Get expert advice
Find out whether your footage can be enhanced
Tell us what the footage shows, what you need to see and any deadlines. We will give you a candid view of what enhancement can achieve before you commit to any work.
Freecall
1800 865 190
Hours
Monday to Friday, 9.00 am to 5.30 pm
All enquiries are treated in strict confidence. Please contact us before sending any footage so we can advise on the most appropriate transfer method. If you do share footage with us, always use a secure method to protect the integrity of your evidence.