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test_spotstracker.py
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test_spotstracker.py
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#!/usr/bin/env python2
# coding=utf8
from spotstracker import *
import cv2
import numpy
import unittest
class TestArcBadness(unittest.TestCase):
def test_arc_badness(self):
# Present to present, points too far away because of unseen distance
tracker = SpotsTracker()
tracker.settings.max_unseen_distance = 1.4
tracker.settings.max_speed = 60.0
start = Spot(point=numpy.array([1.0, 0.7]), weight=0.2, frame_num=5, time=0.0)
end = Spot(point=numpy.array([0.2, -0.5]), weight=0.2, frame_num=10, time=0.1)
# distance = 1.4422205101855958
self.assertTrue(tracker.arc_badness(start, end) is None)
def test_arc_badness2(self):
# Present to present, points too far away because of max speed
tracker = SpotsTracker()
tracker.settings.max_unseen_distance = 3.0
tracker.settings.max_speed = 10.0
start = Spot(point=numpy.array([1.0, 0.7]), weight=0.2, frame_num=5, time=0.0)
end = Spot(point=numpy.array([0.2, -0.5]), weight=0.2, frame_num=10, time=0.1)
# distance = 1.4422205101855958
self.assertTrue(tracker.arc_badness(start, end) is None)
def test_arc_badness3(self):
# Present to present, points close enough
tracker = SpotsTracker()
tracker.settings.max_unseen_distance = 3.0
tracker.settings.max_speed = 60.0
tracker.settings.skip_badness = 1.0
tracker.settings.variance_parameter = 1.0
start = Spot(point=numpy.array([1.0, 0.7]), weight=0.2, frame_num=5, time=0.0)
end = Spot(point=numpy.array([0.2, -0.5]), weight=0.2, frame_num=10, time=0.1)
# distance = 1.4422205101855958
self.assertTrue( abs(tracker.arc_badness(start, end) - 24.6) < 1e-8 )
def test_arc_badness4(self):
# Present to absent
tracker = SpotsTracker()
tracker.settings.disappearance_badness = 7.0
start = Spot(point=numpy.array([1.0, 0.7]), weight=0.2, frame_num=5, time=0.0)
end = Spot(point=None, weight=0.0, frame_num=6, time=0.1)
self.assertTrue( abs(tracker.arc_badness(start, end) - 7.0) < 1e-8 )
def test_arc_badness5(self):
# Absent to present
tracker = SpotsTracker()
tracker.settings.appearance_badness = 7.0
start = Spot(point=None, weight=0.2, frame_num=5, time=0.0)
end = Spot(point=numpy.array([1.0, 0.7]), weight=0.0, frame_num=6, time=0.1)
self.assertTrue( abs(tracker.arc_badness(start, end) - 7.0) < 1e-8 )
def test_arc_badness6(self):
# Absent to absent
tracker = SpotsTracker()
tracker.settings.absence_badness = 7.0
start = Spot(point=None, weight=0.2, frame_num=5, time=0.0)
end = Spot(point=None, weight=0.0, frame_num=6, time=0.1)
self.assertTrue( abs(tracker.arc_badness(start, end) - 7.0) < 1e-8 )
def test_arc_badness7(self):
# Absent to absent with skip > 0
tracker = SpotsTracker()
tracker.settings.absence_badness = 7.0
start = Spot(point=None, weight=0.2, frame_num=5, time=0.0)
end = Spot(point=None, weight=0.0, frame_num=7, time=0.1)
self.assertTrue(tracker.arc_badness(start, end) is None)
class TestInterpolate(unittest.TestCase):
def test_interpolate(self):
tracker = SpotsTracker()
start = Spot(point=numpy.array([1.0, 0.7]), weight=0.2, frame_num=5, time=0.0)
end = Spot(point=numpy.array([0.2, -0.5]), weight=0.2, frame_num=10, time=0.1)
result = tracker.interpolate(start, end, 0.05)
self.assertTrue(numpy.allclose(result, numpy.array([0.6, 0.1])))
class TestSpotsTracker(unittest.TestCase):
def test_constant_path(self):
settings = SpotsTrackerSettings()
settings.dynamic_depth = 2
settings.absence_badness = 0.0
tracker = SpotsTracker(settings=settings)
# Push first layer
spots = [Spot(point=numpy.array([1.0, 0.7]), weight=0.3), Spot(point=numpy.array([0.2, -0.5]), weight=0.2)]
layer = Layer(spots=spots, frame_num=5, time=0.0)
self.assertEqual(tracker.push_back_and_get_info(layer), [])
# Push second layer
spots = [Spot(point=numpy.array([1.0, 0.7]), weight=0.3), Spot(point=numpy.array([0.2, -0.5]), weight=0.2)]
layer = Layer(spots=spots, frame_num=6, time=0.1)
self.assertEqual(tracker.push_back_and_get_info(layer), [])
# Push third layer
spots = [Spot(point=numpy.array([1.0, 0.7]), weight=0.3), Spot(point=numpy.array([0.2, -0.5]), weight=0.2)]
layer = Layer(spots=spots, frame_num=7, time=0.2)
[(num_frame, position)] = tracker.push_back_and_get_info(layer)
self.assertEqual(num_frame, 5)
self.assertTrue(numpy.allclose(position, numpy.array([1.0, 0.7])))
# Push fourth layer
spots = [Spot(point=numpy.array([1.0, 0.7]), weight=0.3), Spot(point=numpy.array([0.2, -0.5]), weight=0.2)]
layer = Layer(spots=spots, frame_num=8, time=0.3)
[(num_frame, position)] = tracker.push_back_and_get_info(layer)
self.assertEqual(num_frame, 6)
self.assertTrue(numpy.allclose(position, numpy.array([1.0, 0.7])))
def test_skip_one_frame(self):
settings = SpotsTrackerSettings()
settings.dynamic_depth = 2
settings.absence_badness = 0.0
settings.skip_badness = 0.0
tracker = SpotsTracker(settings=settings)
# Push first layer
spots = [Spot(point=numpy.array([1.0, 0.7]), weight=5.0), Spot(point=numpy.array([0.2, -0.5]), weight=0.2)]
layer = Layer(spots=spots, frame_num=5, time=0.0)
self.assertEqual(tracker.push_back_and_get_info(layer), [])
# Push second layer -- this layer does not contain spots
spots = []
layer = Layer(spots=spots, frame_num=6, time=0.1)
self.assertEqual(tracker.push_back_and_get_info(layer), [])
# Push third layer
spots = [Spot(point=numpy.array([1.0, 0.7]), weight=5.0), Spot(point=numpy.array([0.2, -0.5]), weight=0.2)]
layer = Layer(spots=spots, frame_num=7, time=0.2)
[(num_frame, position)] = tracker.push_back_and_get_info(layer)
self.assertEqual(num_frame, 5)
self.assertTrue(numpy.allclose(position, numpy.array([1.0, 0.7])))
# Push fourth layer
spots = [Spot(point=numpy.array([1.0, 0.7]), weight=5.0), Spot(point=numpy.array([0.2, -0.5]), weight=0.2)]
layer = Layer(spots=spots, frame_num=8, time=0.3)
[(num_frame, position)] = tracker.push_back_and_get_info(layer)
self.assertEqual(num_frame, 6)
self.assertTrue(numpy.allclose(position, numpy.array([1.0, 0.7])))
if __name__ == '__main__':
unittest.main()