Tuesday, July 13th, 2010, 676 days ago

Hand detection by using cvSnakeImage

HCI, opencv, Research   16 Comments

Using the function cvsnakeimage(), this was an idea i tried to recognise hand gestures. The thought was that as to set a threshold to filter the image firstly, based on the image then contours were able to be extracted (as blue curves shown in the picture on the left), then passing contours points to ‘cvsnakeimage’ function to calculate the green curves which were snake curves.

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Friday, July 2nd, 2010, 687 days ago

“Secret Powers”: A finger detection demonstration

Research   8 Comments

secret powers from Mechanics of Destruction on Vimeo.

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Wednesday, May 19th, 2010, 731 days ago

Hand detection and image recognition

HCI, Quote, Research, Video   12 Comments

The hand detection and image descriptor is a tool developed for direct interaction with a device called PR2 which is a robot by a student in Stanford University. It enables hand gestures to control the movement of the robot, as the video below shows (if can see the video, please refer here Hand detection) Meanwhile, a library descriptors_2d is also presented. And, resources of learning more about the hand detection techniques and image descriptors are provided here (2d_decriptors.PDF) as well.
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Friday, April 16th, 2010, 764 days ago

Tracking a hand manipulating objects

HCI, Quote, Research   16 Comments


A method of tracking hand manipulating objects is presented by Hamer et al. (2009), as shown in the picture above it seems quite robust for tracking.

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Tuesday, April 6th, 2010, 773 days ago

OpenCV with VS2008

Quote, Research   3 Comments

To create your own OpenCV-based project in Visual Studio do the following:

Linking DLLs:

• To permanantly include necessary dll files, add “C:\Program Files\OpenCV\bin” to PATH by visiting Advanced tab in System of Windows (the locate of directory might be different).
• One can just copy necessary dll files into project directory with source files.
• It might be required to restart Visual C++ when execution of instance failes after successful build.

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Saturday, April 3rd, 2010, 777 days ago

Quoted: Switching to OpenCV 2.0 with VS2005

Quote, Research   Comment now

I’m using OpenCV for some tests, and for some reasons (freelance gigs and Symbian SDK) using MS Visual Studio. As new and shiny OpenCV 2.0 is out I decided to switch to it. As it happen, one absolutely have to read buried in the download section readme, before doing anything.
The thing is, OpenCV 2.0 doesn’t include lib files for VS. They have to be built by user.
So here is step by step retelling of readme:
1. Rename your old OpenCV installation to save it, just in case
2. Download and install OpenCV 2.0a
3. Download and install CMake Read More