Author Archives: Marco Fontani

How Can I Convert an Unplayable Video from CCTV whilst keeping the Best Quality?

Welcome, dear friends, to the weekly “How do I do this” appointment! As we discovered in the previous posts, most surveillance footage is normally available in proprietary formats that standard players won’t play. We’ve also seen that Amped Replay lets you play many of such formats, so you can view them. How though can you convert them, whilst maintaining quality to preserve their evidential worth, so that other colleagues can play them?

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How Can I Find Which Are CCTV Video Files on a USB Drive?

Dear friends, welcome to this week’s “How do I do this?” pill to ease your video pain! As we said in the previous post, surveillance video files often come in rather odd extensions. So odd that you’ll hardly be able to tell apart video files from different stuff. But luckily, Amped Replay will identify potential video files for you! Keep reading to find out more.

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How Can I Play an Unplayable Video From a CCTV Surveillance System?

Dear friends, welcome back! As promised in the introductory post to this series, today we’ll face one of the most basic and common issues found by investigators in their daily job: playing surveillance video files. It seems the easiest thing, but it turns out to be often hard with standard players, so keep reading.

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Introducing the new “Amped Replay Tutorials: How do I do this?” Blog Post Series!

Dear friends, welcome back! Last week we said farewell to the Video Evidence Pitfall blog series, but of course we’re not leaving you alone! And so, here we are with a brand new series called “Amped Replay Tutorials: How do I do this?“. We’ll try to address simple tasks that people working with video face almost daily. Keep reading for more info!

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Multiplexing: The Cause of Many Seemingly Corrupted Videos

Dear friends, welcome back! Let me just say it was so nice to meet many of you at the Amped User Days last week, even though virtually. Ok, back to us: welcome to a new chapter of the Video Evidence Pitfalls series! Today we’re dealing with multiplexed videos: we’ll briefly look at different kinds of multiplexing, how to recognize them, and how to bring your video exhibit back to a “normal” form. So keep reading!

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Cognitive Bias: Steering Conclusions Irrationally

“Thou shall peer-review your analysis” is one of the well-known (and often ignored) rules of forensic reporting. Sometimes, this important principle gets poorly translated into: “let’s have a colleague peek into my results”. And so, it may happen that an investigator or examiner will ask a colleague for their opinion before submitting the results.

Issue: Being Objective Isn’t That Easy

Let’s imagine John calling Lucy to his desk and asking her: “Can you help me with this license plate? I can read BC 537 but I can’t seem to get the last two characters, perhaps they are “TT”, and I’m also quite uncertain about the first one.”

What should Lucy tell John?

  1. Sure thing! Let me help you with my independent review.
  2. Er… you’ve just burnt me as a potential reviewer of your work.
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Compression Artifacts: Hiding or Adding Details to the Scene

Dear friends, welcome to a new video pitfall post! This time we’re dealing with a very sneaky part of video analysis: can we trust what we see? Sometimes, distinguishing the real detail of an object from that of an artifact is not easy. Today’s post will review some of the most common video artifacts and their possible effect on your work.

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Timestamps: Not Always Showing the Right Time

Dear friends, welcome to this week’s video evidence pitfall! In this post, we’re focusing on a crucial element of forensic video analysis: timestamps. Timestamps allow us to locate in time what’s shown in a recording, or reference an event to a specific moment in time. Although virtually all surveillance systems do record timestamps, you should be aware of several pitfalls in accessing and interpreting them, so keep reading!

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