Direct Preview in Amped FIVE from the DVR HDD Application, DVR Examiner, now means a seamless workflow between the two products.
Native data recovery from DVR HDD’s can be a tricky business. DVR Examiner, by DME Forensics, can take a lot of this pain away.
When viewing a directly attached (write blocked) HDD, or a forensic disk image, if the file system is supported, all the clips will be viewable.
Right clicking a clip brings up various options. Under Preview With.. you will now see Amped FIVE as a choice.
One of Amped FIVE‘s many input features is having the ability to preview and capture a video signal, directly within the interface.
Any Directshow compatible video device can be used. When selected, the Input Filter settings dialogue box will open, giving you the ability to choose the device and configure its settings.
Although no longer near the top of acquisition options, screen capturing is one of those tasks that when it is needed, it pays to have prepared your capture environment beforehand.
Screen capturing is fraught with difficulties. The main issue now, from a forensic image analysis point of view, is that many players change the encoded data for their display purposes. This can severely affect the video’s ability to be analyzed correctly for restoration or enhancement. As a result, relying on that captured video may be unwise in certain circumstances.
I have written about this effect, and its most common cause in CCTV, many times but I think it’s necessary to take a closer look.
To start with, this is a great little video showing the effect in action….
The two pieces of mesh have the same grid pattern. As the top piece is moved, a pattern appears. This is the Moire.
I see this daily in CCTV Images that have been obtained by taking either a single image, or a video, directly from a television or monitor screen.
OK, sometimes this is required. The immediate publication of some form of imagery is often an ideal way to obtain recognition intelligence at an early stage. Especially if the native, evidential acquisition of the visual material would delay this process.
The evidence can be recovered correctly later, and further images publicized at a later time.
Let’s now look at this image loaded into Amped FIVE… Continue reading