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
182
183
184
185
186
187
188
189
|
#ifndef MEDIAPIPE_CALCULATORS_IMS_DANGEROUS_BEHAVIOR_DETECTOR_CALCULATOR_H_
#define MEDIAPIPE_CALCULATORS_IMS_DANGEROUS_BEHAVIOR_DETECTOR_CALCULATOR_H_
#include "mediapipe/framework/calculator_framework.h"
namespace mediapipe {
enum class DangerousBehaviorType {
NONE = 0,
PHONE_CALL = 1,
SMOKING = 2,
DRINKING = 3,
EATING = 4,
REACHING = 5,
TEXTING = 6,
UNKNOWN = 7,
};
message DangerousBehaviorResult {
DangerousBehaviorType type = 1;
float confidence = 2;
bool left_hand_involved = 3;
bool right_hand_involved = 4;
uint64 timestamp_ms = 5;
}
class DangerousBehaviorDetectorCalculator : public CalculatorBase {
public:
static absl::Status GetContract(CalculatorContract* cc) {
cc->Inputs().Tag("POSE_LANDMARKS").Set<std::vector<NormalizedLandmarkList>>();
cc->Inputs().Tag("LEFT_HAND_LANDMARKS").Set<std::vector<NormalizedLandmarkList>>();
cc->Inputs().Tag("RIGHT_HAND_LANDMARKS").Set<std::vector<NormalizedLandmarkList>>();
cc->Inputs().Tag("FACE_LANDMARKS").Set<std::vector<NormalizedLandmarkList>>();
cc->Outputs().Tag("DANGEROUS_BEHAVIOR").Set<DangerousBehaviorResult>();
return absl::OkStatus();
}
absl::Status Process(CalculatorContext* cc) override {
bool has_pose = !cc->Inputs().Tag("POSE_LANDMARKS").IsEmpty();
bool has_left_hand = !cc->Inputs().Tag("LEFT_HAND_LANDMARKS").IsEmpty();
bool has_right_hand = !cc->Inputs().Tag("RIGHT_HAND_LANDMARKS").IsEmpty();
bool has_face = !cc->Inputs().Tag("FACE_LANDMARKS").IsEmpty();
DangerousBehaviorType behavior_type = DangerousBehaviorType::NONE;
float confidence = 0.0f;
bool left_hand_involved = false;
bool right_hand_involved = false;
if (has_pose && has_face) {
const auto& pose =
cc->Inputs().Tag("POSE_LANDMARKS").Get<std::vector<NormalizedLandmarkList>>()[0];
const auto& face =
cc->Inputs().Tag("FACE_LANDMARKS").Get<std::vector<NormalizedLandmarkList>>()[0];
if (has_left_hand || has_right_hand) {
auto result = DetectPhoneCall(cc, pose, face);
if (result.first != DangerousBehaviorType::NONE) {
behavior_type = result.first;
confidence = result.second;
left_hand_involved = has_left_hand;
right_hand_involved = has_right_hand;
}
}
if (behavior_type == DangerousBehaviorType::NONE &&
(has_left_hand || has_right_hand)) {
auto result = DetectDrinking(cc, pose, face);
if (result.first != DangerousBehaviorType::NONE) {
behavior_type = result.first;
confidence = result.second;
left_hand_involved = has_left_hand;
right_hand_involved = has_right_hand;
}
}
if (behavior_type == DangerousBehaviorType::NONE &&
(has_left_hand || has_right_hand)) {
auto result = DetectSmoking(cc, pose, face);
if (result.first != DangerousBehaviorType::NONE) {
behavior_type = result.first;
confidence = result.second;
left_hand_involved = has_left_hand;
right_hand_involved = has_right_hand;
}
}
}
DangerousBehaviorResult result;
result.set_type(behavior_type);
result.set_confidence(confidence);
result.set_left_hand_involved(left_hand_involved);
result.set_right_hand_involved(right_hand_involved);
result.set_timestamp_ms(cc->InputTimestamp().Value() / 1000);
cc->Outputs().Tag("DANGEROUS_BEHAVIOR").AddPacket(
MakePacket<DangerousBehaviorResult>(result).At(cc->InputTimestamp()));
if (behavior_type != DangerousBehaviorType::NONE) {
LOG(INFO) << "Dangerous behavior detected: " << static_cast<int>(behavior_type);
}
return absl::OkStatus();
}
private:
std::pair<DangerousBehaviorType, float> DetectPhoneCall(
CalculatorContext* cc,
const NormalizedLandmarkList& pose,
const NormalizedLandmarkList& face) {
float left_ear_x = face.landmark(7).x();
float left_ear_y = face.landmark(7).y();
float right_ear_x = face.landmark(8).x();
float right_ear_y = face.landmark(8).y();
if (!cc->Inputs().Tag("LEFT_HAND_LANDMARKS").IsEmpty()) {
const auto& left_hand =
cc->Inputs().Tag("LEFT_HAND_LANDMARKS").Get<std::vector<NormalizedLandmarkList>>()[0];
float wrist_x = left_hand.landmark(0).x();
float wrist_y = left_hand.landmark(0).y();
float dist_left = std::sqrt(std::pow(wrist_x - left_ear_x, 2) +
std::pow(wrist_y - left_ear_y, 2));
if (dist_left < 0.15f) {
return {DangerousBehaviorType::PHONE_CALL, 0.8f};
}
}
if (!cc->Inputs().Tag("RIGHT_HAND_LANDMARKS").IsEmpty()) {
const auto& right_hand =
cc->Inputs().Tag("RIGHT_HAND_LANDMARKS").Get<std::vector<NormalizedLandmarkList>>()[0];
float wrist_x = right_hand.landmark(0).x();
float wrist_y = right_hand.landmark(0).y();
float dist_right = std::sqrt(std::pow(wrist_x - right_ear_x, 2) +
std::pow(wrist_y - right_ear_y, 2));
if (dist_right < 0.15f) {
return {DangerousBehaviorType::PHONE_CALL, 0.8f};
}
}
return {DangerousBehaviorType::NONE, 0.0f};
}
std::pair<DangerousBehaviorType, float> DetectDrinking(
CalculatorContext* cc,
const NormalizedLandmarkList& pose,
const NormalizedLandmarkList& face) {
float mouth_x = (face.landmark(61).x() + face.landmark(291).x()) / 2.0f;
float mouth_y = (face.landmark(61).y() + face.landmark(291).y()) / 2.0f;
return {DangerousBehaviorType::NONE, 0.0f};
}
std::pair<DangerousBehaviorType, float> DetectSmoking(
CalculatorContext* cc,
const NormalizedLandmarkList& pose,
const NormalizedLandmarkList& face) {
return {DangerousBehaviorType::NONE, 0.0f};
}
};
REGISTER_CALCULATOR(DangerousBehaviorDetectorCalculator);
}
#endif
|