yscv-detect 0.1.7

Object detection pipeline with YOLOv8, NMS, and heatmap decoding
Documentation 
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
181

use crate::{
    DetectError, FramePeopleDetectScratch, Rgb8PeopleDetectScratch, detect_people_from_frame,
    detect_people_from_frame_with_scratch, detect_people_from_rgb8,
    detect_people_from_rgb8_with_scratch,
};
use yscv_tensor::Tensor;
use yscv_video::Frame;

#[test]
fn detect_people_from_rgb_frame_uses_grayscale_adapter() {
    let frame = Frame::new(
        0,
        0,
        Tensor::from_vec(
            vec![2, 2, 3],
            vec![
                0.9, 0.9, 0.9, 0.1, 0.1, 0.1, //
                0.9, 0.9, 0.9, 0.1, 0.1, 0.1,
            ],
        )
        .unwrap(),
    )
    .unwrap();

    let dets = detect_people_from_frame(&frame, 0.5, 1, 0.5, 10).unwrap();
    assert_eq!(dets.len(), 1);
    assert_eq!(dets[0].bbox.x1, 0.0);
    assert_eq!(dets[0].bbox.x2, 1.0);
}

#[test]
fn detect_people_from_frame_with_scratch_uses_grayscale_adapter() {
    let frame = Frame::new(
        0,
        0,
        Tensor::from_vec(
            vec![2, 2, 3],
            vec![
                0.9, 0.9, 0.9, 0.1, 0.1, 0.1, //
                0.9, 0.9, 0.9, 0.1, 0.1, 0.1,
            ],
        )
        .unwrap(),
    )
    .unwrap();

    let mut scratch = FramePeopleDetectScratch::default();
    let dets =
        detect_people_from_frame_with_scratch(&frame, 0.5, 1, 0.5, 10, &mut scratch).unwrap();
    assert_eq!(dets.len(), 1);
    assert_eq!(dets[0].bbox.x1, 0.0);
    assert_eq!(dets[0].bbox.x2, 1.0);
}

#[test]
fn detect_people_from_frame_with_scratch_accepts_grayscale_heatmap_input() {
    let frame = Frame::new(
        0,
        0,
        Tensor::from_vec(
            vec![2, 2, 1],
            vec![
                0.8, 0.1, //
                0.8, 0.1,
            ],
        )
        .unwrap(),
    )
    .unwrap();

    let mut scratch = FramePeopleDetectScratch::default();
    let dets =
        detect_people_from_frame_with_scratch(&frame, 0.5, 1, 0.5, 10, &mut scratch).unwrap();
    assert_eq!(dets.len(), 1);
    assert_eq!(dets[0].bbox.x1, 0.0);
    assert_eq!(dets[0].bbox.x2, 1.0);
}

#[test]
fn detect_people_from_frame_with_scratch_reuses_buffer_for_resized_frames() {
    let mut scratch = FramePeopleDetectScratch::default();

    let small = Frame::new(
        0,
        0,
        Tensor::from_vec(
            vec![2, 2, 3],
            vec![
                0.9, 0.9, 0.9, 0.1, 0.1, 0.1, //
                0.9, 0.9, 0.9, 0.1, 0.1, 0.1,
            ],
        )
        .unwrap(),
    )
    .unwrap();
    let small_dets =
        detect_people_from_frame_with_scratch(&small, 0.5, 1, 0.5, 10, &mut scratch).unwrap();
    assert_eq!(small_dets.len(), 1);

    let large = Frame::new(
        0,
        0,
        Tensor::from_vec(
            vec![2, 3, 3],
            vec![
                0.9, 0.9, 0.9, 0.9, 0.9, 0.9, 0.1, 0.1, 0.1, //
                0.9, 0.9, 0.9, 0.9, 0.9, 0.9, 0.1, 0.1, 0.1,
            ],
        )
        .unwrap(),
    )
    .unwrap();
    let large_dets =
        detect_people_from_frame_with_scratch(&large, 0.5, 1, 0.5, 10, &mut scratch).unwrap();
    assert_eq!(large_dets.len(), 1);
    assert_eq!(large_dets[0].bbox.x1, 0.0);
    assert_eq!(large_dets[0].bbox.x2, 2.0);
}

#[test]
fn detect_people_from_rgb8_uses_grayscale_adapter() {
    let rgb8 = vec![
        230, 230, 230, 20, 20, 20, //
        230, 230, 230, 20, 20, 20,
    ];
    let dets = detect_people_from_rgb8(2, 2, &rgb8, 0.5, 1, 0.5, 10).unwrap();
    assert_eq!(dets.len(), 1);
    assert_eq!(dets[0].bbox.x1, 0.0);
    assert_eq!(dets[0].bbox.x2, 1.0);
}

#[test]
fn detect_people_from_rgb8_with_scratch_uses_grayscale_adapter() {
    let rgb8 = vec![
        230, 230, 230, 20, 20, 20, //
        230, 230, 230, 20, 20, 20,
    ];
    let mut scratch = Rgb8PeopleDetectScratch::default();
    let dets =
        detect_people_from_rgb8_with_scratch((2, 2), &rgb8, 0.5, 1, 0.5, 10, &mut scratch).unwrap();
    assert_eq!(dets.len(), 1);
    assert_eq!(dets[0].bbox.x1, 0.0);
    assert_eq!(dets[0].bbox.x2, 1.0);
}

#[test]
fn detect_people_from_rgb8_with_scratch_reuses_buffer_for_resized_frames() {
    let mut scratch = Rgb8PeopleDetectScratch::default();

    let rgb8_small = vec![
        230, 230, 230, 20, 20, 20, //
        230, 230, 230, 20, 20, 20,
    ];
    let dets_small =
        detect_people_from_rgb8_with_scratch((2, 2), &rgb8_small, 0.5, 1, 0.5, 10, &mut scratch)
            .unwrap();
    assert_eq!(dets_small.len(), 1);

    let rgb8_large = vec![
        230, 230, 230, 230, 230, 230, 20, 20, 20, //
        230, 230, 230, 230, 230, 230, 20, 20, 20,
    ];
    let dets_large =
        detect_people_from_rgb8_with_scratch((3, 2), &rgb8_large, 0.5, 1, 0.5, 10, &mut scratch)
            .unwrap();
    assert_eq!(dets_large.len(), 1);
    assert_eq!(dets_large[0].bbox.x1, 0.0);
    assert_eq!(dets_large[0].bbox.x2, 2.0);
}

#[test]
fn detect_people_from_rgb8_rejects_invalid_buffer_size() {
    let err = detect_people_from_rgb8(2, 2, &[1, 2, 3], 0.5, 2, 0.4, 4).unwrap_err();
    assert_eq!(
        err,
        DetectError::InvalidRgb8BufferSize {
            expected: 12,
            got: 3
        }
    );
}