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Hand gesture detection and recognition using openCV
Related Posts: Hand guesture recognition using openCV Clicking the pictures and the detailed previews will display which show the hand contours extracting from video capture. These pictures illustrate...
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A review of people counting using openCV part 2
@丕子‘s comment reminded me to broaden the review area to cover multi-objects detection. Apologise for not making clear what is about to review in the second part, as a continue review of people...
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OpenCV mailing list – a collection of resources
Useful openCV mailing list Someone in the comments asked where to get so much information about openCV learning and developing, well, one of my primary source to get openCV related information – as...
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Installing openCV in Ubuntu with pandaboard part 1
OpenCV at ubuntu with pandaboard At the first beginning of post, I would like to remind a tiny, but sometimes may huge, problem in installing openCV at ubuntu with pandaboard – the network proxy...
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Installing openCV in Ubuntu with pandaboard part 2
How to install openCV in Ubuntu without networks In the last post of installing openCV in Ubuntu with pandaboard, the failure of software update of openCV was discussed. But if there was no...
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Installing openCV in Ubuntu with pandaboard part 5 – running openCV 2.3.1...
The last tutorial about installing opencv in ubuntu with pandaboard 4 – compiling the opencv 2.3.1 did not complete the final compile steps, this post aims to complete that. Continue the compiling of...
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Fixing ‘[libavutil/libavutil.so.51] Error 1′ in ffmpeg make for openCV 2.3.1...
This post describes an error and its solution in ffmpeg make for openCV install. It is based on Osman’s comprehensive troubleshooting of openCV 2.3.1 installing and configuring, but adds an additional...
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Capturing images from webcams using openCV in Ubuntu 11.04
This is a simple example of capturing live images from webcams using the new installed OpenCV 2.3.1 in the Ubuntu. The relevant information of OpenCV 2.3.1 install can see my previous posts –...
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HIGHGUI ERROR: V4L: index 0 is not correct
When I moved the openCV development platform from the home to the office, a wired thing happened – the programme that I debugged smoothly in the home did not work at all in the office – even the...
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Ubuntu 11.04, ASUS Xtion pro, ARM and OpenNI
This is a brief summary of the work that has been done previously, including the ubuntu 11.04 install, Xtion depth camera setting, openCV 2.3.1 installing, and the final openNI install and configure....
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The error of ‘VIDIOC_QUERYMENU: Invalid argument’
When I was writing a simple example of OpenCV below, an repeating error happened as ‘VIDIOC_QUERYMENU:Invalid argument’. Is this because the Qt for drawing the output of openCV? The code The code that...
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Breaking Asus Xtion pro into parts
This post demonstrates the breaking down of xtion pro into parts. For more pictures reading the whole post.
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Needed!!! High quality positive/negative hand pictures needed!!!
Give me your hands!!! As a new hand gesture recognition project is launched recently, there is a strong need to collect a big number of good quality hand pictures – it is a pity I have only two hands....
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Writing a simple hand gesture picture sampler for classifier training
Progresses in training a classifier for hand gesture recognition is never an easy job, one of the difficulties that needs to overcome is the collection of sample images, both positive and negative....
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A failed example of hand gesture recognition using openCV haartraining...
This example aimed to provide a good classifier that was able to recognise a flat contract palm in videos, but the results, as demonstrated in the haar performance evaluation, turned out quite...
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The colour range for HSV skin extraction
The question raised about hsv colour values Several days ago I got an email from a developer who asked why there were differences in the hsv threshold values between my example and the theoretical...
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Hand gesture detection and recognition using openCV 2
Before the example – why haar classifiers for hand gesture detection As mentioned in one of early articles such like hand gesture detection and recognition using openCV, there are two main ways to...
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Coming soon – closed palm detection in openCV
Coming soon… Due to the end of this year’s Google Summer of Code 2012 is approaching soon, the development of hand gesture detection plugin for Gstreamer is also going to be packed. As one of...
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Analysis of openCV’s face detection – the sample, method and performance
From the picture of face detection in openCV website… This post is the first of series articles discussing openCV HAAR classifier training and use, as it was implemented in GSoc 2012 project. Here in...
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Collection of own hand gesture samples – the call for pictures, training...
The call for hand gesture samples Quite long time ago a call for hand gesture samples was made in here, unfortunately this call received few responses making contributions to the samples. Guess if I...
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First trial of classifier training – the good and bad
Forewords The first try of HAAR training was based on the tutorial mentioned in the previous post (see Collection of own hand gesture samples – the call for pictures, training method, tool and...
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A method of detecting and recognising hand gestures using OpenCV (2)
A previous article has described a method to detect and recognise hand gestures using OpenCV, actually the c# wrapper of OpenCV called emgu CV. Details of this method can be found here a method of...
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