It is almost the end of the year 2016 and this year I learned an important reason why the field of Artificial Intelligence is taking off. Yes, we now have access to huge amounts of data. Massive ...
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Histogram of Oriented Gradients explained using OpenCV
In this post, we will learn the details of the Histogram of Oriented Gradients (HOG) feature descriptor. We will learn what is under the hood and how this descriptor is calculated internally by ...
Image Recognition and Object Detection : Part 1
This is a multipart post on image recognition and object detection. In this part, we will briefly explain image recognition using traditional computer vision techniques. I refer to techniques that ...
Head Pose Estimation using OpenCV and Dlib
In this tutorial we will learn how to estimate the pose of a human head in a photo using OpenCV and Dlib. In many applications, we need to know how the head is tilted with respect to a camera. In a ...
Live CV : A Computer Vision Coding Application
In this article I will present Live CV, a computer vision coding application, and describe a few of it's implementation details along the way. ...
Approximate Focal Length for Webcams and Cell Phone Cameras
In this post I will explain how to find a crude approximation to the focal length of a webcam or cell phone camera ( i.e. fixed focal length cameras ) if calibration is not an option or if you are too ...