Archived entries for opencv

Facial Appearance Modeling/Tracking

I’ve been working on developing a method for automatic head-pose tracking, and along the way have come to model facial appearances. I start by initializing a facial bounding box using the Viola-Jones detector, a well known and robust detector used for training objects. This allows me to centralize the face. Once I know where the Read the full article…

Keyframe based modeling

Playing with MSERs in trying to implement an algorithm for feature-based object tracking.  The algorithm first finds MSERs, warps them to circles, describes them with a SIFT descriptor, and then indexes keyframes of sift vectors by using vocabulary trees.   Of course that’s a ridiculously simplified explanation, but look at what it’s capable of!!!:  

OpenCV 2.0 Introduces CPP Style Coding and More

No more void *‘s apparently. And they’ve got constructors and destructors. Check out the documentation here: http://opencv.willowgarage.com/documentation/cpp/index.html Notably, the memory management seems to be much nicer as destructors are called when there are no more references to the object. As well, quickly accessing data row or plane major seems to be much easier now: e.g. Read the full article…

OpenCV 1.2.0 (2.0 Beta)

Win32 installer Taken from the changelog: >>> New functionality, features: >> Optimization: * Many of the basic functions and the image processing operations (like arithmetic operations, geometric image transformations, filtering etc.) have got SSE2 optimization, so they are several times faster. – The model of IPP support has been changed. Now IPP is supposed to Read the full article…

Memory

I’ve recently finished up a project in collaboration with a Glass Artist, Agelos Papadakis. We built a structure of 25 glass neurons the size of a face and chainded them together in a 3x3x5 meter sculpture. We had 2 cameras hidden in the piece tracking peoples faces and a projector then creating visualizations of the Read the full article…

OpenCV with Processing using Eclipse

My students for the Digital Media Studio Project here at the University of Edinburgh have asked me to present a small workshop on using some aspects of the Processing.org environment. I’ve worked up something and thought I could share it online as well. I’ve setup a google code repository with the necessary files. The code Read the full article…


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