How many times have we seen in a film somebody request security footage to be enhanced? Lots. We know it’s rubbish but in this post I present a possible scenario where this might actually be feasible.
How Deep Learning Works – The Very Basics
In this post I thought I’d try to explain how deep learining works. I want this to be a “Deep Learning for Dummies” kind of article.
Apple’s and Samsung’s Face Unlocking Technologies
Have you ever wondered how the technology that unlocks your phone with your face works? This is a fascinating question and, interestingly, Samsung and Apple provide very different technologies for this feature on their devices. This post will examine the differences between the two technologies and will also show you how either of the two […]
How Facial Recognition Works – Part 2 (FaceNet)
Here I describe a specific facial recognition algorithm – one that changed things forever: FaceNet by Google.
How Facial Recognition Works – Part 1
(Update: part 2 of this post can be found here) Facial recognition. What a hot topic this is today! Hardly a week goes by without it hitting the news in one way or another, and usually for the wrong reasons – i.e. privacy and its growing ubiquity. But have you ever wondered how this technology […]
Image Steganography – Simple Examples
In my last post I introduced the field of image steganography. In this post I present two very simple ways secret messages can be hidden in digital images.
Image Steganography – An Introduction
In this post (part 1 of 2) I would like to introduce the topic of image steganography, which is the practice of concealing secret messages in digital images.
The Early History of Computer Vision
I present here the early historical milestones that have led us to where we are now in computer vision. I cover the years between the 60s and early 80s.
Generating Heatmaps from Coordinates with Kernel Density Estimation
In last week’s post I talked about plotting tracked customers or staff from video footage onto a 2D floor plan. This is an example of video analytics and data mining that can be performed on standard CCTV footage that can give you insightful information such as common movement patterns or common places of congestion at […]
Mapping Camera Coordinates to a 2D Floor Plan
Data mining is a big business. Everyone is analysing mouse clicks, mouse movements, customer purchase patterns. Such analysis has proven to give profitable insights that are driving businesses further than ever before. But not many people have considered data mining videos. What about all that security footage that has stacked up over the years? Can […]