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Zbigatron

Be an Optimist Prime in the world of Computer Vision and AI

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Category: How Stuff Works

Posts explaining how technologies work

Arduino 2WD Lafvin Robot

Arduino – Rotor Sweeping for Obstacle Detection Code

Posted on July 23, 2024January 15, 2025 by Zbigatron

Here is code for a Lafvin Arduino robot. The code gets the servo motor to sweep back and forth 180 degrees and uses the ultrasonic sensor to detect objects.

Enhancing image meme hollywood

Security Film or Image Enhancing is Possible

Posted on June 24, 2023January 15, 2025 by Zbigatron

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

Posted on June 9, 2023January 15, 2025 by Zbigatron

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.

facial-recognition

Apple’s and Samsung’s Face Unlocking Technologies

Posted on December 20, 2020January 16, 2025 by Zbigatron

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 […]

facial-recognition

How Facial Recognition Works – Part 2 (FaceNet)

Posted on May 27, 2020January 16, 2025 by Zbigatron

Here I describe a specific facial recognition algorithm – one that changed things forever: FaceNet by Google.

facial-recognition

How Facial Recognition Works – Part 1

Posted on February 11, 2020January 16, 2025 by Zbigatron

(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 […]

steganography-example

Image Steganography – Simple Examples

Posted on November 21, 2018January 16, 2025 by Zbigatron

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.

steganography-example

Image Steganography – An Introduction

Posted on October 5, 2018January 16, 2025 by Zbigatron

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.

old-disks-featured

The Early History of Computer Vision

Posted on July 13, 2018January 16, 2025 by Zbigatron

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.

Eye-tracking-heatmap

Generating Heatmaps from Coordinates with Kernel Density Estimation

Posted on April 21, 2018January 16, 2025 by Zbigatron

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 […]

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Zbigatron is a blog on the interesting things going on in the world of Computer Vision and AI.

About Me

Profile pic of Zig

My name is Zbigniew ("Ziggy") Zdziarski. I have a PhD in Computer Vision and a passion for anything related to AI.

I also have a Master's in Theology and a Master's in Philosophy - because one should never stop learning! More about me.

Twitter: @zbigatron
YouTube: @zbigatron

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