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--- lirec:faceident [2009-03-30 13:54] – davegriffiths
+++ lirec:faceident [2009-03-30 14:01] – davegriffiths
@@ Line 1: / Line 1: @@
 ======FaceIdent======
-A simple approach to face identification, built on top of OpenCV and given a YARP network interface.
+A simple approach to face identification, built on top of OpenCV and given a
+YARP network interface.
-Source code: [[http://svn.lirec.eu/foam/trunk/simple-faceident/]]
+The program has two modes of operation. The first is calibration, where each user
+must show their face to the camera separately - press the number keys to assign
+each user with a different ID. You can see which face is mapped to which ID at
+the bottom of the window.
+The second mode of operation is face detection, where each visible detected face
+is given an ID based on it's closest match (within a given error threshold) with
+the faces recorded during calibration. The boxes drawn around the faces display
+the id and the confidence value of the match. When in this mode the program sends
+the following YARP messages:
 ^ Port ^ Bottle contents ^ Meaning ^
 | /faceident | "user appeared" ID confidence | A user has entered the view of the camera |
 | /faceident | "user disappeared" ID | The user has left the camera view |
+Keys:
+^ Key ^ Meaning ^
+| 0-9 number keys | Calibrate a given id against a face in the scene |
+| d | Start detect mode, which will send YARP messages |
+| c | Clear all faces in the database |
+Requires: OpenCV, YARP
+Written and tested on Linux, but it should work in Windows too.
+At the moment you'll probably have to run it with:
+simple-faceident --cascade=/path/to/haarcascade_frontalface_alt.xml
+In order to find OpenCV's data, on my machine it's in:
+/usr/local/share/opencv/haarcascades/haarcascade_frontalface_alt.xml
+Todo:
+  * Try normalised cross correlation instead of image differencing
+Source code: [[http://svn.lirec.eu/foam/trunk/simple-faceident/]]