Category Archives: OpenCV

Computer vision research is not the same since OpenCV appeared some years ago. It’s an amazing work which is held by a passionate community. Here I will post some of the tricks and best practices I’ve learnt with the years.

Pre-loading video images in std::vector

Have you ever thought to load all images of a video file into a std::vector just to see if your program gets faster than to iteratively read the images from the file? Well, I did. The hypothesis is that accessing the … Continue reading

Posted in OpenCV | Tagged , , | Leave a comment

Using OpenCV 3.0.0alpha with CMake in Windows 7

Hi all, I was just curious about how much effort would take to download, install and try the OpenCV 3.0.0alpha version that has been around for a little while ( The motivation is that it looks that we will have … Continue reading

Posted in CMake, Computer vision, OpenCV | Tagged , , | Leave a comment

Source code Inverse Perspective Mapping C++, OpenCV

Hi all, Today I bring a very simple code that might be of interest for some of you. It is a C++ class to compute Inverse Perspective Mappings (IPM), or sometimes called bird’s-eye views of a planar surface. The link … Continue reading

Posted in ADAS, Computer vision, OpenCV | Tagged , , , , , | 41 Comments

Mastering OpenCV with Practical Computer Vision Projects [eBook]

Hi all! OpenCV is a must when talking about computer vision, rapid prototyping, and open source solutions. Many people is interested in learning OpenCV, but sometimes it is a little bit tricky to find the correct way to use the … Continue reading

Posted in OpenCV | Tagged , , , , | Leave a comment

Stereo visual odometry using OpenCV

Hi all! One of the latest works we (Vicomtech-ik4) have been working on is related to stereo visual odometry. I already posted some preliminary results some time ago, but now I come with some new material. We have completed our … Continue reading

Posted in Computer vision, FP7, OpenCV | Tagged , , , | 7 Comments

Source code for SIFT, ORB, FAST and FFME for OpenCV C++ for egomotion estimation

Hi everybody! This time I bring some material about local feature point detection, description and matching. I was wondering which method should I use for egomotion estimation in on-board applications, so I decided to make a (simple) comparison between some … Continue reading

Posted in Computer vision, OpenCV | Tagged , , , , , , , , | 50 Comments

Vehicle count and classification with CUDA, OpenCV and particle filters

Not so long ago we (Vicomtech) did a significant effort to complete one of our best works in computer vision. The result is a system for traffic surveillance which uses a single camera, a single PC (CPU + GPU) that … Continue reading

Posted in Computer vision, OpenCV | Tagged , , , , , , , , | 26 Comments