How to Use Cellebrite Physical Analyzer’s New Image Classification Feature
Cellebrite is introducing a new feature in Cellebrite Physical Analyzer called “Image Classification.” We have recently added Image Classification using our image analytics engine to help get the most relevant data even faster. To help you use Image Classification to its fullest capability, I will walk you through a few of the most important features.
Image Classification begins the moment you ingest the evidence. Under “File” and “Open Case” you can choose to “Add Extraction.”
You can choose a UFD or UFDX file.
Before you click on “Examine Data,” make sure you click “Next.”
You will be directed to the Image Classification review engine and here you can choose to turn it on or off.
It is optimized to use CPU, so even if you don’t have a good graphics card it is possible to still do the classification and it doesn’t take that much longer for it to open.
There is also an option to select your categories. If you click on “Select Categories,” you can see all the categories that can be analyzed, and it is possible to turn on or off anything that you are interested in.
Due to the sensitivity of the topic, the one category that is always off by default is “Suspected CSA” (suspected child sexual abuse). If your investigation does involve CSA, you can manually choose to turn it on.
We are not doing HashMatch here; that is a separate feature. We are actually doing analytics against the actual image using AI (Artificial Intelligence). Once you have your classification set up the way you want, you can click “Examine Data” and it will start to do the analytics while decoding the image.
Within the “Insights” section, you can see the Image Classification and you will be shown all the categories that were classified and the number of images in each category.
For example, we can start with cars and Cellebrite Physical Analyzer will show you all the images that were classified as “cars” using a filter.
Not only will you be able to see the obvious images of cars, but you will also be able to view cars at any angle, images from the inside of the vehicle, the dashboard of a vehicle, and other perspectives.
Occasionally you may see a false positive, but you will never miss out on the important images.
Within the images window, you will also see a few new filters. In this updated version, there is now a classification type where you can turn the image categories that you are interested in on or off.
You can also choose the strength, or how confident Physical Analyzer is about that particular category, from 50%-90%.
This new Image Classification feature in Cellebrite Physical Analyzer has been developed to help expedite your investigations, get the data you need faster, and avoid having to scroll through thousands of photos when you are just looking for one image.
Stay tuned for more exciting Cellebrite Physical Analyzer features coming up in the future.