File size: 5,849 Bytes
e1832f4
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
import pytest
import numpy as np
from pathlib import Path
from boxmot.utils import WEIGHTS


from numpy.testing import assert_allclose
from boxmot import (
    StrongSort, BotSort, DeepOcSort, OcSort, ByteTrack, ImprAssocTrack, get_tracker_config, create_tracker,
)

from boxmot.trackers.ocsort.ocsort import KalmanBoxTracker as OCSortKalmanBoxTracker
from boxmot.trackers.deepocsort.deepocsort import KalmanBoxTracker as DeepOCSortKalmanBoxTracker
from tests.test_config import MOTION_ONLY_TRACKING_METHODS, MOTION_N_APPEARANCE_TRACKING_METHODS, ALL_TRACKERS, PER_CLASS_TRACKERS


@pytest.mark.parametrize("Tracker", MOTION_N_APPEARANCE_TRACKING_METHODS)
def test_motion_n_appearance_trackers_instantiation(Tracker):
    Tracker(
        reid_weights=Path(WEIGHTS / 'osnet_x0_25_msmt17.pt'),
        device='cpu',
        half=True,
    )


@pytest.mark.parametrize("Tracker", MOTION_ONLY_TRACKING_METHODS)
def test_motion_only_trackers_instantiation(Tracker):
    Tracker()


@pytest.mark.parametrize("tracker_type", ALL_TRACKERS)
def test_tracker_output_size(tracker_type):
    tracker_conf = get_tracker_config(tracker_type)
    tracker = create_tracker(
        tracker_type=tracker_type,
        tracker_config=tracker_conf,
        reid_weights=WEIGHTS / 'mobilenetv2_x1_4_dukemtmcreid.pt',
        device='cpu',
        half=False,
        per_class=False
    )

    rgb = np.random.randint(255, size=(640, 640, 3), dtype=np.uint8)
    det = np.array([[144, 212, 400, 480, 0.82, 0],
                    [425, 281, 576, 472, 0.72, 65]])

    output = tracker.update(det, rgb)
    assert output.shape == (2, 8)  # two inputs should give two outputs
    
    
def test_dynamic_max_obs_based_on_max_age():
    max_age = 400
    ocsort = OcSort(
        max_age=max_age
    )

    assert ocsort.max_obs == (max_age + 5)


def create_kalman_box_tracker_ocsort(bbox, cls, det_ind, tracker):
    return OCSortKalmanBoxTracker(
        bbox,
        cls,
        det_ind,
        Q_xy_scaling=tracker.Q_xy_scaling,
        Q_s_scaling=tracker.Q_s_scaling
    )


def create_kalman_box_tracker_deepocsort(bbox, cls, det_ind, tracker):
    # DeepOCSort KalmanBoxTracker expects input in different format than OCSort
    det = np.concatenate([bbox, [cls, det_ind]]) 
    return DeepOCSortKalmanBoxTracker(
        det,
        Q_xy_scaling=tracker.Q_xy_scaling,
        Q_s_scaling=tracker.Q_s_scaling
    )


TRACKER_CREATORS = {
    OcSort: create_kalman_box_tracker_ocsort,
    DeepOcSort: create_kalman_box_tracker_deepocsort,
}


@pytest.mark.parametrize("Tracker, init_args", [
    (OcSort, {}),
    (DeepOcSort, {
        'reid_weights': Path(WEIGHTS / 'osnet_x0_25_msmt17.pt'),
        'device': 'cpu',
        'half': True
    }),
])
def test_Q_matrix_scaling(Tracker, init_args):
    bbox = np.array([0, 0, 100, 100, 0.9])
    cls = 1
    det_ind = 0
    Q_xy_scaling = 0.05
    Q_s_scaling = 0.0005

    tracker = Tracker(
        Q_xy_scaling=Q_xy_scaling, 
        Q_s_scaling=Q_s_scaling,
        **init_args
    )

    create_kalman_box_tracker = TRACKER_CREATORS[Tracker]
    kalman_box_tracker = create_kalman_box_tracker(bbox, cls, det_ind, tracker)

    assert kalman_box_tracker.kf.Q[4, 4] == Q_xy_scaling, "Q_xy scaling incorrect for x' velocity"
    assert kalman_box_tracker.kf.Q[5, 5] == Q_xy_scaling, "Q_xy scaling incorrect for y' velocity"
    assert kalman_box_tracker.kf.Q[6, 6] == Q_s_scaling, "Q_s scaling incorrect for s' (scale) velocity"


@pytest.mark.parametrize("tracker_type", PER_CLASS_TRACKERS)
def test_per_class_tracker_output_size(tracker_type):

    tracker_conf = get_tracker_config(tracker_type)
    tracker = create_tracker(
        tracker_type=tracker_type,
        tracker_config=tracker_conf,
        reid_weights=WEIGHTS / 'mobilenetv2_x1_4_dukemtmcreid.pt',
        device='cpu',
        half=False,
        per_class=True
    )

    rgb = np.random.randint(255, size=(640, 640, 3), dtype=np.uint8)
    det = np.array([[144, 212, 578, 480, 0.82, 0],
                    [425, 281, 576, 472, 0.72, 65]])
    embs = np.random.random(size=(2, 512))

    output = tracker.update(det, rgb, embs)
    output = tracker.update(det, rgb, embs)
    assert output.shape == (2, 8)  # two inputs should give two outputs


@pytest.mark.parametrize("tracker_type", PER_CLASS_TRACKERS)
def test_per_class_tracker_active_tracks(tracker_type):

    tracker_conf = get_tracker_config(tracker_type)
    tracker = create_tracker(
        tracker_type=tracker_type,
        tracker_config=tracker_conf,
        reid_weights=WEIGHTS / 'mobilenetv2_x1_4_dukemtmcreid.pt',
        device='cpu',
        half=False,
        per_class=True
    )

    rgb = np.random.randint(255, size=(640, 640, 3), dtype=np.uint8)
    det = np.array([[144, 212, 578, 480, 0.82, 0],
                    [425, 281, 576, 472, 0.72, 65]])
    embs = np.random.random(size=(2, 512))

    tracker.update(det, rgb, embs)

    # Check that tracks are created under the class tracks
    assert tracker.per_class_active_tracks[0], "No active tracks for class 0"
    assert tracker.per_class_active_tracks[65], "No active tracks for class 65"


@pytest.mark.parametrize("tracker_type", ALL_TRACKERS)
@pytest.mark.parametrize("dets", [None, np.array([])])
def test_tracker_with_no_detections(tracker_type, dets):
    tracker_conf = get_tracker_config(tracker_type)
    tracker = create_tracker(
        tracker_type=tracker_type,
        tracker_config=tracker_conf,
        reid_weights=WEIGHTS / 'mobilenetv2_x1_4_dukemtmcreid.pt',
        device='cpu',
        half=False,
        per_class=False
    )

    rgb = np.random.randint(255, size=(640, 640, 3), dtype=np.uint8)
    embs = np.random.random(size=(2, 512))
    
    output = tracker.update(dets, rgb, embs)
    assert output.size == 0, "Output should be empty when no detections are provided"