deleted and moved .py files

exp/image_tracker.py

@@ -0,0 +1,47 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Sat May 24 14:42:55 2014
+
+@author: rlabbe
+"""
+
+from KalmanFilter import KalmanFilter
+import numpy as np
+import matplotlib.pyplot as plt
+import numpy.random as random
+
+f = KalmanFilter (dim=4)
+
+dt = 1
+f.F = np.mat ([[1, dt, 0,  0],
+               [0,  1, 0,  0],
+               [0,  0, 1, dt],
+               [0,  0, 0,  1]])
+
+f.H = np.mat ([[1, 0, 0, 0],
+               [0, 0, 1, 0]])
+
+
+
+f.Q *= 4.
+f.R = np.mat([[50,0],
+              [0, 50]])
+
+f.x = np.mat([0,0,0,0]).T
+f.P *= 100.
+
+
+xs = []
+ys = []
+count = 200
+for i in range(count):
+    z = np.mat([[i+random.randn()*1],[i+random.randn()*1]])
+    f.predict ()
+    f.update (z)
+    xs.append (f.x[0,0])
+    ys.append (f.x[2,0])
+
+
+plt.plot (xs, ys)
+plt.show()
+