Monday, December 20th, 2010, 413 days ago
Research 
As the new release of openCV version 2.0, the projects which were published in this site may generate many issues while trying to build the code in a project. To address this type of issue, please check the version of openCV, as this may be a easy problem if the version triggers issues.
This is a quick reminder that noticing the openCV version while compiling the codes, hope this helps.
More information about the differences between version 1.2 and 2.0, i suggest the openCVWiki and another site openCV Reference.
Wednesday, October 13th, 2010, 481 days ago
Quote, Research
This platform of multitouch with Flash was found by chance but it excited me indeed. Through this platform it means designers can develop multitouch applications freely as long as they have a device which supports multitouch. (In our laboratory there is a touch board which supports single touch, anybody knows how to turn this board into multitouch one, please please do tell me) For more details please read the full post including the original library URL from Adobe.
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Friday, September 3rd, 2010, 521 days ago
HCI, Research
This post is about to introduce an efficient method of detecting and recognising hand gestures using the convexity detection of openCV, as illustrated in the picture on the left. In contrast to the previous work of detecting hand contours, this method steps further to recognise gestures of hand pretty accurately, meanwhile this shows possibilities of extend such work into using simple hand gestures to manipulate computer applications.
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Tuesday, August 24th, 2010, 531 days ago
HCI, Quote, Research
First we gather a data set of all the hand-shapes we wish to recognise. A naive approach to recognizing a new image D would be to simply compare it with all the images stored in the data set and find the target image T with the closest match. But because there are so many images in the data set this will take far too long. We can reduce the time by using a multi-scale approach. We divide up the data set into groups of images, which are similar to one another by blurring the images at different levels so that small differences between similar images will be eroded.
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Saturday, July 31st, 2010, 555 days ago
Research
This post has been scheduled for ages since i posted an?announcement in a previous post to write a review of openCV of detection and recognition, particularly in perspectives of hand detections and recognitions. The announcement post is here as a reference.
About openCV
A library of programming functions for real time computer vision,released under a BSD?license, and free for academic and commercial use (a). Current version is openCV 2.1, this version has been installed and compiled under my VS 2008 environment but with some errors, may not be very easy to configure this version. While the stabilities of openCV 1.0 have been firmly proved already and that is easier to install and configure. Install guides can be found as ?openCV install guide in openCV wiki,?installing openCV in windows, vc2008 install openCV 2.0/2.1(in Chinese)?and get started with openCV.
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Tuesday, July 27th, 2010, 559 days ago
Research
Using media player control in MFC is not as easy as dragging in a button control. Usually there are some high frequent errors such as ‘cannot convert from LPDISPATCH to CWMPMedia/CWMPControls’, and the worse thing is that even Google is not able to provide proper solutions to address these errors except dozens of posts raising similar problems waiting for somebody to provide positive solutions.
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