Monthly Archives: June 2018

CCTV appeals: Don’t underestimate the importance of image quality

‘Caught on CCTV’ — how many times do we read or hear those words?

With cities worldwide sitting under the gaze of millions of public and private cameras, it is no wonder that in many cases, the best chances of identifying an offender starts with the image caught on CCTV.

But, the simple task of getting an image can sometimes be a challenge so it is no wonder that people look at the shortcut and simply take a picture of the CCTV monitor with their phone. It’s quick, simple and you immediately have an image.

This is great when recognition is time critical. The image of the ‘man in the hat’, the 2016 Belgium terror suspect, was first released after a snap of a CCTV screen. Then, a few days later, the forensically acquired evidential images were released.

When something is not time critical, then the correct acquisition of the original video will help immensely in any integrity or authentication issue. Not only that, but if any restoration or enhancement is required, then you will have a much better chance of image recovery.

Faces and vehicle licence plates are often requested for recovery. They have two matching characteristics – high detail. It is these high details that are lost when a piece of CCTV is captured incorrectly, snapped from a PC screen, re-recorded with the analogue video output, or obtained any other way that changes the original digital structure.

An added problem with some of these processes is that small details can change shape and become blended together. Letters and numbers on licence plates start to look like other digits.

It can be frustrating to use multiple pieces of software with a need to ensure no loss of quality during every stage. This obviously adds extra and unnecessary time to the workflow. Time that is extremely valuable in today’s policing environment.

A by-product of using Amped FIVE, the ‘all-in-one’ solution, is that investigative decisions can be actioned much faster. “Am I going to get something from that?” If the answer is no, then it’s time to move on. Spend the time on what is achievable and negate the impossible.

If there was not a correct acquisition of this original video, it may not have been possible to enhance the dark image to recover the details of the vehicle and license plate.

Licence plates usually stay within the policing world but faces, clothing configurations, and tattoos regularly end up in the press, social media, and within online galleries for recognition.

Therefore, it’s worth taking a bit of time with these to ensure the highest possible chance of some good intelligence. It can also avoid some embarrassment – reading through public comments on a few sites makes for painful reading due to the image posted being so bad!

Read the full article originally posted on Police Oracle.

When in Rome….go to the Digital Forensics & Investigations Conference

“Rome, Italy’s capital, is a sprawling, cosmopolitan city with nearly 3,000 years of globally influential art, architecture and culture on display. Ancient ruins such as the Forum and the Colosseum evoke the power of the former Roman Empire. Vatican City, headquarters of the Roman Catholic Church, has St. Peter’s Basilica and the Vatican Museums, which house masterpieces such as Michelangelo’s Sistine Chapel frescoes.” Excerpt taken from here.

But there’s more to see and do in Rome than what the travel guides tell you! If you are visiting this magical city, remember to stop by the Digital Forensics & Investigations Conference 2018 from June 26-27, where Amped’s CEO and Founder, Martino Jerian, will present a series of presentations and workshops for the experts and non-experts in image and video forensics.

The Amped Software sessions include:

Miglioramento di Immagini e Filmati in Ambito Forense
June 26, 15:30 – 16:00, Sala Garden

Autenticazione di Immagini e Riconoscimento della Fotocamera
June 27, 11:00 – 11:30, Sala Segreteria

Introduzione al Miglioramento di Immagini e Filmati con Amped FIVE
June 27, 16:00 – 17:00, Sala Umanesimo – Laboratorio Pratico

Click here to find out more, and to register!

A presto!

Amped FIVE Update 11284: Multiplexed Stream Support, Proprietary Timestamp, Remove Frames Filter, and a Whole Lot More

Whilst it’s been a busy time for us here at Amped with the demand for training higher than ever, we have made sure our development is continuous and we’re here again with another huge update for Amped FIVE.

A Completely Revamped Conversion Engine

As you will know, one of the biggest struggles within the world of CCTV and video analysis is the ever-increasing number of proprietary formats. Our support and development team are constantly receiving requests for new format support and in our latest update, we have enabled conversion support for BVR, DVS, H64, PSF and SHV formats, along with some variations of other formats already supported in previous versions.

All these formats are multiplexed streams. This is when a manufacturer has placed all camera footage into a single time-based video stream.

The latest FIVE not only converts the files straight away, but demultiplexes each video stream, splitting them into their own individual chains within the software. Under the Convert DVR Advanced tab you will find the options to enable this time-saving function.

Files to Convert > All, one chain per file.

No more mixed streams, no more time wasted writing carving scripts. A few clicks will now save you hours!

Multiplexed single stream decoding is huge, so expect a dedicated blog post in the next few weeks looking more deeply into decoding files of this type.

But the new conversion engine does not stop there! There are a lot of benefits even on single stream video files. Standard conversion done with vanilla FFmpeg is often not enough – there may be the risk of losing video frames because of wrongly interpreted proprietary metadata. Our new engine not only cleans almost every proprietary video format, being in MPEG4, H263, H264 and H265, but for many of them also recovers the proprietary timestamp. We found more than 50 different variations of timestamp formats!

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A Lucky, Happy User!

Amped Software was one of the main sponsors of this year’s Ontario Forensic Video Analysts Association Training Conference (www.OFVAA.com) held in Niagara Falls, Canada, where 30 analysts from Canada, the US, and the UK attended.

Given the outstanding relationship Amped Software has with the OFVAA, we decided to do something exceptional this year and provided an Amped license for a draw during the event.

Michael (Mick) Green, from North Wales Police in the UK, was the lucky winner.

Mick paid for the travel and training himself, to gain insight into the techniques used to establish suspect height ranges as this is an important part of his daily work.

A few days ago, our international trainer, David Spreadborough, attended North Wales Police to deliver the software and give Mick a few tips on its use.

We hope you enjoy using Amped Mick! And we look forward to seeing you soon on a training course to get hands-on training on the use of our products as well as get some insights into the challenges users face in forensic video and digital multimedia evidence processing.

Now it’s time to go get your evidence Amped!