diff options
Diffstat (limited to 'src/argaze.test/GazeAnalysis/DispersionThresholdIdentification.py')
| -rw-r--r-- | src/argaze.test/GazeAnalysis/DispersionThresholdIdentification.py | 154 |
1 files changed, 67 insertions, 87 deletions
diff --git a/src/argaze.test/GazeAnalysis/DispersionThresholdIdentification.py b/src/argaze.test/GazeAnalysis/DispersionThresholdIdentification.py index b7475b5..156f6f1 100644 --- a/src/argaze.test/GazeAnalysis/DispersionThresholdIdentification.py +++ b/src/argaze.test/GazeAnalysis/DispersionThresholdIdentification.py @@ -47,11 +47,13 @@ def build_gaze_fixation(size: int, center: tuple, deviation_max: float, min_time else: - gaze_position = GazeFeatures.UnvalidGazePosition() + gaze_position = GazeFeatures.GazePosition() + + # Timestamp gaze position + gaze_position.timestamp = time.time() - start_time + start_ts # Store gaze position - ts = time.time() - start_time + start_ts - ts_gaze_positions[ts] = gaze_position + ts_gaze_positions.append(gaze_position) return ts_gaze_positions @@ -85,11 +87,13 @@ def build_gaze_saccade(size: int, center_A: tuple, center_B: tuple, min_time: fl else: - gaze_position = GazeFeatures.UnvalidGazePosition() + gaze_position = GazeFeatures.GazePosition() + + # Timestamp gaze position + gaze_position.timestamp = time.time() - start_time + start_ts # Store gaze position - ts = time.time() - start_time + start_ts - ts_gaze_positions[ts] = gaze_position + ts_gaze_positions.append(gaze_position) return ts_gaze_positions @@ -115,14 +119,14 @@ class TestDispersionThresholdIdentificationClass(unittest.TestCase): self.assertEqual(len(ts_status), size) # Check fixation - ts, fixation = ts_fixations.pop_first() + fixation = ts_fixations.pop(0) - self.assertEqual(len(fixation.positions.keys()), size) + self.assertEqual(len(fixation), size) self.assertLessEqual(fixation.deviation_max, deviation_max) self.assertGreaterEqual(fixation.duration, (size - 1) * min_time) self.assertLessEqual(fixation.duration, (size - 1) * max_time) self.assertLessEqual(fixation.finished, True) - + def test_fixation_and_direct_saccade_identification(self): """Test DispersionThresholdIdentification fixation and saccade identification.""" @@ -134,9 +138,9 @@ class TestDispersionThresholdIdentificationClass(unittest.TestCase): max_time = 0.1 ts_gaze_positions_A = build_gaze_fixation(size, center_A, deviation_max, min_time, max_time) - ts_gaze_positions_B = build_gaze_fixation(size, center_B, deviation_max, min_time, max_time, start_ts=ts_gaze_positions_A.last[0]) + ts_gaze_positions_B = build_gaze_fixation(size, center_B, deviation_max, min_time, max_time, start_ts=ts_gaze_positions_A[-1].timestamp) - ts_gaze_positions = ts_gaze_positions_A.append(ts_gaze_positions_B) + ts_gaze_positions = ts_gaze_positions_A + ts_gaze_positions_B gaze_movement_identifier = DispersionThresholdIdentification.GazeMovementIdentifier(deviation_max_threshold=deviation_max, duration_min_threshold=max_time*2) ts_fixations, ts_saccades, ts_status = gaze_movement_identifier.browse(ts_gaze_positions) @@ -147,45 +151,39 @@ class TestDispersionThresholdIdentificationClass(unittest.TestCase): self.assertEqual(len(ts_status), size * 2) # Check first fixation - ts, fixation = ts_fixations.pop_first() + fixation = ts_fixations.pop(0) - self.assertEqual(len(fixation.positions.keys()), size) + self.assertEqual(len(fixation), size) self.assertLessEqual(fixation.deviation_max, deviation_max) self.assertGreaterEqual(fixation.duration, (size - 1) * min_time) self.assertLessEqual(fixation.duration, (size - 1) * max_time) self.assertLessEqual(fixation.finished, True) # Check first saccade - ts, saccade = ts_saccades.pop_first() + saccade = ts_saccades.pop(0) - self.assertEqual(len(saccade.positions.keys()), 2) + self.assertEqual(len(saccade), 2) self.assertGreaterEqual(saccade.duration, min_time) self.assertLessEqual(saccade.duration, max_time) self.assertLessEqual(saccade.finished, True) # Check that last position of a movement is equal to first position of next movement - last_ts, last_position = fixation.positions.last - first_ts, first_position = saccade.positions.first - - self.assertEqual(last_ts, first_ts) - self.assertEqual(last_position.value, first_position.value) + self.assertEqual(fixation[-1].timestamp, saccade[0].timestamp) + self.assertEqual(fixation[-1].value, saccade[0].value) # Check second fixation - ts, fixation = ts_fixations.pop_first() + fixation = ts_fixations.pop(0) - self.assertEqual(len(fixation.positions.keys()), size) + self.assertEqual(len(fixation), size) self.assertLessEqual(fixation.deviation_max, deviation_max) self.assertGreaterEqual(fixation.duration, (size - 1) * min_time) self.assertLessEqual(fixation.duration, (size - 1) * max_time) self.assertLessEqual(fixation.finished, True) # Check that last position of a movement is equal to first position of next movement - last_ts, last_position = saccade.positions.last - first_ts, first_position = fixation.positions.first - - self.assertEqual(last_ts, first_ts) - self.assertEqual(last_position.value, first_position.value) - + self.assertEqual(saccade[-1].timestamp, fixation[0].timestamp) + self.assertEqual(saccade[-1].value, fixation[0].value) + def test_fixation_and_short_saccade_identification(self): """Test DispersionThresholdIdentification fixation and saccade identification.""" @@ -199,10 +197,10 @@ class TestDispersionThresholdIdentificationClass(unittest.TestCase): max_time = 0.1 ts_gaze_positions_A = build_gaze_fixation(size, center_A, deviation_max, min_time, max_time) - ts_move_positions = build_gaze_saccade(move, out_A, center_B, min_time, min_time, start_ts=ts_gaze_positions_A.last[0]) - ts_gaze_positions_B = build_gaze_fixation(size, center_B, deviation_max, min_time, max_time, start_ts=ts_move_positions.last[0]) + ts_move_positions = build_gaze_saccade(move, out_A, center_B, min_time, min_time, start_ts=ts_gaze_positions_A[-1].timestamp) + ts_gaze_positions_B = build_gaze_fixation(size, center_B, deviation_max, min_time, max_time, start_ts=ts_move_positions[-1].timestamp) - ts_gaze_positions = ts_gaze_positions_A.append(ts_move_positions).append(ts_gaze_positions_B) + ts_gaze_positions = ts_gaze_positions_A + ts_move_positions + ts_gaze_positions_B gaze_movement_identifier = DispersionThresholdIdentification.GazeMovementIdentifier(deviation_max_threshold=deviation_max, duration_min_threshold=max_time*2) ts_fixations, ts_saccades, ts_status = gaze_movement_identifier.browse(ts_gaze_positions) @@ -213,47 +211,41 @@ class TestDispersionThresholdIdentificationClass(unittest.TestCase): self.assertEqual(len(ts_status), size * 2 + move) # Check first fixation - ts, fixation = ts_fixations.pop_first() + fixation = ts_fixations.pop(0) - self.assertEqual(len(fixation.positions.keys()), size) + self.assertEqual(len(fixation), size) self.assertLessEqual(fixation.deviation_max, deviation_max) self.assertGreaterEqual(fixation.duration, (size - 1) * min_time) self.assertLessEqual(fixation.duration, (size - 1) * max_time) self.assertLessEqual(fixation.finished, True) # Check first saccade - ts, saccade = ts_saccades.pop_first() + saccade = ts_saccades.pop(0) - self.assertEqual(len(saccade.positions.keys()), move + 2) + self.assertEqual(len(saccade), move + 2) self.assertGreaterEqual(saccade.duration, (move + 1) * min_time) self.assertLessEqual(saccade.duration, (move + 1) * max_time) self.assertLessEqual(saccade.finished, True) # Check that last position of a movement is equal to first position of next movement - last_ts, last_position = fixation.positions.last - first_ts, first_position = saccade.positions.first - - self.assertEqual(last_ts, first_ts) - self.assertEqual(last_position.value, first_position.value) + self.assertEqual(fixation[-1].timestamp, saccade[0].timestamp) + self.assertEqual(fixation[-1].value, saccade[0].value) # Check second fixation - ts, fixation = ts_fixations.pop_first() + fixation = ts_fixations.pop(0) - self.assertEqual(len(fixation.positions.keys()), size) + self.assertEqual(len(fixation), size) self.assertLessEqual(fixation.deviation_max, deviation_max) self.assertGreaterEqual(fixation.duration, (size - 1) * min_time) self.assertLessEqual(fixation.duration, (size - 1) * max_time) self.assertLessEqual(fixation.finished, True) # Check that last position of a movement is equal to first position of next movement - last_ts, last_position = saccade.positions.last - first_ts, first_position = fixation.positions.first - - self.assertEqual(last_ts, first_ts) - self.assertEqual(last_position.value, first_position.value) - - def test_invalid_gaze_position(self): - """Test DispersionThresholdIdentification fixation and saccade identification with invalid gaze position.""" + self.assertEqual(saccade[-1].timestamp, fixation[0].timestamp) + self.assertEqual(saccade[-1].value, fixation[0].value) + + def test_empty_gaze_position(self): + """Test DispersionThresholdIdentification fixation and saccade identification with empty gaze position.""" size = 15 center = (0, 0) @@ -273,23 +265,23 @@ class TestDispersionThresholdIdentificationClass(unittest.TestCase): self.assertEqual(len(ts_status), size-3) # Check first fixation - ts, fixation = ts_fixations.pop_first() + fixation = ts_fixations.pop(0) - self.assertEqual(len(fixation.positions.keys()), 7) + self.assertEqual(len(fixation), 7) self.assertLessEqual(fixation.deviation_max, deviation_max) self.assertGreaterEqual(fixation.duration, 6 * min_time) self.assertLessEqual(fixation.duration, 6 * max_time) self.assertLessEqual(fixation.finished, True) # Check second fixation - ts, fixation = ts_fixations.pop_first() + fixation = ts_fixations.pop(0) - self.assertEqual(len(fixation.positions.keys()), 5) + self.assertEqual(len(fixation), 5) self.assertLessEqual(fixation.deviation_max, deviation_max) self.assertGreaterEqual(fixation.duration, 4 * min_time) self.assertLessEqual(fixation.duration, 4 * max_time) self.assertLessEqual(fixation.finished, True) - + def test_fixation_overlapping(self): """Test Fixation overlap function.""" @@ -302,8 +294,8 @@ class TestDispersionThresholdIdentificationClass(unittest.TestCase): max_time = 0.1 ts_gaze_positions_A = build_gaze_fixation(size, center_A, deviation_max, min_time, max_time) - ts_gaze_positions_B = build_gaze_fixation(size, center_B, deviation_max, min_time, max_time, start_ts=ts_gaze_positions_A.last[0]) - ts_gaze_positions_C = build_gaze_fixation(size, center_C, deviation_max, min_time, max_time, start_ts=ts_gaze_positions_B.last[0]) + ts_gaze_positions_B = build_gaze_fixation(size, center_B, deviation_max, min_time, max_time, start_ts=ts_gaze_positions_A[-1].timestamp) + ts_gaze_positions_C = build_gaze_fixation(size, center_C, deviation_max, min_time, max_time, start_ts=ts_gaze_positions_B[-1].timestamp) fixation_A = DispersionThresholdIdentification.Fixation(ts_gaze_positions_A) fixation_B = DispersionThresholdIdentification.Fixation(ts_gaze_positions_B) @@ -329,7 +321,7 @@ class TestDispersionThresholdIdentificationClass(unittest.TestCase): max_time = 0.1 ts_gaze_positions_A = build_gaze_fixation(size, center_A, deviation_max, min_time, max_time) - ts_gaze_positions_B = build_gaze_fixation(size, center_B, deviation_max, min_time, max_time, start_ts=ts_gaze_positions_A.last[0]) + ts_gaze_positions_B = build_gaze_fixation(size, center_B, deviation_max, min_time, max_time, start_ts=ts_gaze_positions_A[-1].timestamp) ts_gaze_positions = ts_gaze_positions_A.append(ts_gaze_positions_B) @@ -342,14 +334,14 @@ class TestDispersionThresholdIdentificationClass(unittest.TestCase): self.assertEqual(len(ts_status), size*2) # Check unique fixation - ts, fixation = ts_fixations.pop_first() + fixation = ts_fixations.pop(0) - self.assertEqual(len(fixation.positions.keys()), size * 2) + self.assertEqual(len(fixation), size * 2) #self.assertGreaterEqual(fixation.deviation_max, deviation_max) self.assertGreaterEqual(fixation.duration, (2 * size - 1) * min_time) self.assertLessEqual(fixation.duration, (2 * size - 1) * max_time) self.assertLessEqual(fixation.finished, True) - + def test_identification_browsing(self): """Test DispersionThresholdIdentification identification browsing.""" @@ -361,23 +353,20 @@ class TestDispersionThresholdIdentificationClass(unittest.TestCase): max_time = 0.1 ts_gaze_positions_A = build_gaze_fixation(size, center_A, deviation_max, min_time, max_time) - ts_gaze_positions_B = build_gaze_fixation(size, center_B, deviation_max, min_time, max_time, start_ts=ts_gaze_positions_A.last[0]) + ts_gaze_positions_B = build_gaze_fixation(size, center_B, deviation_max, min_time, max_time, start_ts=ts_gaze_positions_A[-1].timestamp) - ts_gaze_positions = ts_gaze_positions_A.append(ts_gaze_positions_B) + ts_gaze_positions = ts_gaze_positions_A + ts_gaze_positions_B gaze_movement_identifier = DispersionThresholdIdentification.GazeMovementIdentifier(deviation_max_threshold=deviation_max, duration_min_threshold=max_time*2) - # Get last ts to terminate identification on last gaze position - last_ts, _ = ts_gaze_positions.last - # Iterate on gaze positions - for ts, gaze_position in ts_gaze_positions.items(): + for gaze_position in ts_gaze_positions: - finished_gaze_movement = gaze_movement_identifier.identify(ts, gaze_position, terminate=(ts == last_ts)) + finished_gaze_movement = gaze_movement_identifier.identify(gaze_position.timestamp, gaze_position, terminate=(gaze_position.timestamp == ts_gaze_positions[-1].timestamp)) if GazeFeatures.is_fixation(finished_gaze_movement): - self.assertEqual(len(finished_gaze_movement.positions.keys()), size) + self.assertEqual(len(finished_gaze_movement), size) self.assertLessEqual(finished_gaze_movement.deviation_max, deviation_max) self.assertGreaterEqual(finished_gaze_movement.duration, (size-1) * min_time) self.assertLessEqual(finished_gaze_movement.duration, (size-1) * max_time) @@ -385,29 +374,20 @@ class TestDispersionThresholdIdentificationClass(unittest.TestCase): elif GazeFeatures.is_saccade(finished_gaze_movement): - self.assertEqual(len(finished_gaze_movement.positions.keys()), 2) + self.assertEqual(len(finished_gaze_movement), 2) self.assertGreaterEqual(finished_gaze_movement.duration, min_time) self.assertLessEqual(finished_gaze_movement.duration, max_time) self.assertLessEqual(finished_gaze_movement.finished, True) - # Check that last gaze position date is not equal to given gaze position date - if finished_gaze_movement.valid: - - last_ts, _ = finished_gaze_movement.positions.last - - self.assertNotEqual(last_ts, ts) - # Check that last gaze position date of current fixation is equal to given gaze position date # NOTE: This is not true for saccade as, for I-DT, there is a minimal time window while the gaze movement is unknown current_gaze_movement = gaze_movement_identifier.current_gaze_movement - if current_gaze_movement.valid: + if current_gaze_movement: if GazeFeatures.is_fixation(current_gaze_movement): - last_ts, _ = current_gaze_movement.positions.last - - self.assertEqual(last_ts, ts) - + self.assertEqual(current_gaze_movement[-1].timestamp, gaze_position.timestamp) + def test_identification_generator(self): """Test DispersionThresholdIdentification identification using generator.""" @@ -419,17 +399,17 @@ class TestDispersionThresholdIdentificationClass(unittest.TestCase): max_time = 0.1 ts_gaze_positions_A = build_gaze_fixation(size, center_A, deviation_max, min_time, max_time) - ts_gaze_positions_B = build_gaze_fixation(size, center_B, deviation_max, min_time, max_time, start_ts=ts_gaze_positions_A.last[0]) + ts_gaze_positions_B = build_gaze_fixation(size, center_B, deviation_max, min_time, max_time, start_ts=ts_gaze_positions_A[-1].timestamp) - ts_gaze_positions = ts_gaze_positions_A.append(ts_gaze_positions_B) + ts_gaze_positions = ts_gaze_positions_A + ts_gaze_positions_B gaze_movement_identifier = DispersionThresholdIdentification.GazeMovementIdentifier(deviation_max_threshold=deviation_max, duration_min_threshold=max_time*2) - for ts, finished_gaze_movement in gaze_movement_identifier(ts_gaze_positions): + for finished_gaze_movement in gaze_movement_identifier(ts_gaze_positions): if GazeFeatures.is_fixation(finished_gaze_movement): - self.assertEqual(len(finished_gaze_movement.positions.keys()), size) + self.assertEqual(len(finished_gaze_movement), size) self.assertLessEqual(finished_gaze_movement.deviation_max, deviation_max) self.assertGreaterEqual(finished_gaze_movement.duration, size * min_time) self.assertLessEqual(finished_gaze_movement.duration, size * max_time) @@ -437,7 +417,7 @@ class TestDispersionThresholdIdentificationClass(unittest.TestCase): elif GazeFeatures.is_saccade(finished_gaze_movement): - self.assertEqual(len(finished_gaze_movement.positions.keys()), 2) + self.assertEqual(len(finished_gaze_movement), 2) self.assertGreaterEqual(finished_gaze_movement.duration, 2 * min_time) self.assertLessEqual(finished_gaze_movement.duration, 2 * max_time) self.assertLessEqual(finished_gaze_movement.finished, True) |