File size: 12,161 Bytes
d2885a7
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
"""
This file is the main runtime orchestrator for one person inside one frame.
It connects pose feature generation, posture classification, hand cropping, phone detection,
and final fusion into one clean modular flow. This is the clean replacement for the large
processOnePerson logic from your current project while keeping the same decision behavior.
"""

import time
from pathlib import Path

import cv2
import numpy as np

from src.components.distraction_fusion import DistractionFusion
from src.components.hand_cropper import HandCropper
from src.components.phone_detector import PhoneDetector
from src.components.pose_feature_generator import PoseFeatureGenerator
from src.components.posture_detector import PostureDetector
from src.config.constants import (
    STATE_BACKSIDE,
    STATE_NOT_USING,
    STATE_OUT_OF_FRAME,
    STATE_SUSPICIOUS,
    STATE_TO_BE_CLASSIFIED,
)
from src.entity.config_entity import (
    InferenceConfig,
    MMPoseConfig,
    PhoneDetectorConfig,
    PostureModelConfig,
)
from src.utils.logger import get_logger
from src.utils.opencv_utils import (
    crop_frame,
    relative_to_absolute,
    render_detection_rectangle,
    resize_frame_to_square,
)


class RuntimeDetector:
    """
    End-to-end runtime detector for one person.
    """

    def __init__(
        self,
        mmpose_config: MMPoseConfig,
        posture_model_config: PostureModelConfig,
        phone_detector_config: PhoneDetectorConfig,
        inference_config: InferenceConfig,
        log_dir: Path | None = None,
        log_level: str = "INFO",
    ) -> None:
        self.mmpose_config = mmpose_config
        self.posture_model_config = posture_model_config
        self.phone_detector_config = phone_detector_config
        self.inference_config = inference_config
        self.logger = get_logger(
            self.__class__.__name__, log_dir=log_dir, level=log_level
        )

        self.pose_feature_generator = PoseFeatureGenerator(
            mmpose_config=mmpose_config,
            posture_model_config=posture_model_config,
            log_dir=log_dir,
            log_level=log_level,
        )
        self.posture_detector = PostureDetector(
            config=posture_model_config,
            log_dir=log_dir,
            log_level=log_level,
        )
        self.hand_cropper = HandCropper(
            mmpose_config=mmpose_config,
            phone_detector_config=phone_detector_config,
            log_dir=log_dir,
            log_level=log_level,
        )
        self.phone_detector = PhoneDetector(
            config=phone_detector_config,
            log_dir=log_dir,
            log_level=log_level,
        )
        self.fusion = DistractionFusion(log_dir=log_dir, log_level=log_level)

        self.posture_detector.load()

    def _initial_state_checks(
        self, keypoints: np.ndarray, xyxy: np.ndarray
    ) -> tuple[int, str]:
        """
        Reproduce your current lightweight state machine checks
        before posture classification.
        """
        state = STATE_TO_BE_CLASSIFIED
        score_text = ""

        keypoint_score_threshold = (
            self.inference_config.posture.keypoint_score_threshold
        )
        missing_threshold = (
            self.inference_config.posture.out_of_frame_missing_keypoints_threshold
        )

        visible_keypoints = keypoints[:13, 2]
        if np.sum(visible_keypoints < keypoint_score_threshold) >= missing_threshold:
            return STATE_OUT_OF_FRAME, score_text

        left_shoulder_x = keypoints[self.mmpose_config.keypoints.left_shoulder_index][0]
        right_shoulder_x = keypoints[self.mmpose_config.keypoints.right_shoulder_index][
            0
        ]
        left_shoulder_score = keypoints[
            self.mmpose_config.keypoints.left_shoulder_index
        ][2]
        right_shoulder_score = keypoints[
            self.mmpose_config.keypoints.right_shoulder_index
        ][2]

        backside_ratio = (left_shoulder_x - right_shoulder_x) / (
            (xyxy[2] - xyxy[0]) + np.finfo(np.float32).eps
        )

        if (
            right_shoulder_score > keypoint_score_threshold
            and left_shoulder_score > keypoint_score_threshold
            and backside_ratio < self.inference_config.posture.backside_ratio_threshold
        ):
            numeric_value = (
                (right_shoulder_score + left_shoulder_score) / 2.0 + 1.0
            ) / 2.0
            score_text = f"{numeric_value:.2f}"
            return STATE_BACKSIDE, score_text

        return state, score_text

    def _run_posture_stage(self, keypoints: np.ndarray) -> tuple[int, str]:
        """
        Convert keypoints to pose features and run posture classifier.
        """
        feature_tensor = self.pose_feature_generator.build_feature_tensor(
            keypoints, normalize=True
        )
        posture_result = self.posture_detector.predict(feature_tensor)

        state = (
            STATE_SUSPICIOUS if posture_result["class_signal"] == 1 else STATE_NOT_USING
        )
        score_text = posture_result["score_text"]

        return state, score_text

    def _run_phone_stage(
        self,
        frame: np.ndarray,
        original_frame: np.ndarray,
        keypoints: np.ndarray,
        xyxy: np.ndarray,
    ) -> tuple[bool, np.ndarray | None]:
        """
        Crop hands, run phone detection, and return phone status.
        """
        use_trained_model = (
            self.phone_detector_config.inference.use_trained_model_by_default
        )
        primary_crop, secondary_crop, spare_ratio = (
            self.hand_cropper.get_priority_hand_crops(
                frame=original_frame,
                keypoints=keypoints,
                xyxy=xyxy,
            )
        )

        for crop_index, crop_item in enumerate([primary_crop, secondary_crop]):
            if crop_item is None:
                continue

            hand_frame, hand_xyxy = crop_item

            if hand_frame is None or hand_xyxy is None or hand_frame.size == 0:
                continue

            subframe_wh = (
                abs(hand_xyxy[2] - hand_xyxy[0]),
                abs(hand_xyxy[3] - hand_xyxy[1]),
            )

            resized_hand = resize_frame_to_square(
                frame=hand_frame,
                edge_length=(
                    self.phone_detector_config.inference.image_size
                    if use_trained_model
                    else 640
                ),
                ratio_threshold=0.5625,
            )

            rgb_hand = cv2.cvtColor(resized_hand, cv2.COLOR_BGR2RGB)
            phone_result = self.phone_detector.predict(
                rgb_hand, use_trained=use_trained_model
            )

            render_detection_rectangle(
                frame=frame,
                text=f"Hand {crop_index}",
                xyxy=hand_xyxy,
                color="green" if not phone_result["detected"] else "pink",
            )

            if phone_result["detected"]:
                relative_xyxy = np.array(
                    phone_result["relative_xyxy"], dtype=np.float32
                )

                from_mother_wh = (
                    (
                        self.phone_detector_config.inference.image_size
                        if use_trained_model
                        else 640
                    ),
                    (
                        self.phone_detector_config.inference.image_size
                        if use_trained_model
                        else 640
                    ),
                )

                absolute_xyxy = relative_to_absolute(
                    from_mother_wh=from_mother_wh,
                    to_mother_wh=subframe_wh,
                    from_child_xyxy=relative_xyxy,
                    to_mother_xy=(hand_xyxy[0], hand_xyxy[1]),
                )

                render_detection_rectangle(
                    frame=frame,
                    text=phone_result["text"],
                    xyxy=absolute_xyxy,
                    color="pink",
                )

                return True, None

            if spare_ratio < self.inference_config.phone.spare_ratio_threshold:
                break

        return False, None

    def process_one_person(
        self,
        frame: np.ndarray,
        original_frame: np.ndarray,
        keypoints: np.ndarray,
        xyxy: np.ndarray,
        runtime_parameters: dict,
    ) -> dict:
        """
        Main entrypoint for one person in one frame.

        Returns a structure similar to your current runtime response.
        """
        start_posture = time.time()
        initial_state, initial_score_text = self._initial_state_checks(keypoints, xyxy)

        if initial_state in {STATE_OUT_OF_FRAME, STATE_BACKSIDE}:
            posture_state = initial_state
            posture_score_text = initial_score_text
        else:
            posture_state, posture_score_text = self._run_posture_stage(keypoints)

        posture_time = time.time() - start_posture

        phone_detected = False
        announced_face_frame = None
        face_xyxy = None
        phone_time = 0.0

        if posture_state == STATE_SUSPICIOUS:
            start_phone = time.time()
            phone_detected, announced_face_frame = self._run_phone_stage(
                frame=frame,
                original_frame=original_frame,
                keypoints=keypoints,
                xyxy=xyxy,
            )
            phone_time = time.time() - start_phone

        fusion_result = self.fusion.fuse(
            base_state=posture_state,
            posture_score_text=posture_score_text,
            phone_detected=phone_detected,
        )

        render_detection_rectangle(
            frame=frame,
            text=f"{fusion_result['display_text']} {fusion_result['score_text']}".strip(),
            xyxy=xyxy,
            color=fusion_result["display_color"],
        )

        # Optional face crop announce, similar to your old runtime logic
        if fusion_result["final_label"] == "distracted":
            face_center = keypoints[self.mmpose_config.keypoints.face_center_index][:2]
            bbox_width = abs(xyxy[2] - xyxy[0])
            left_ear_x = keypoints[self.mmpose_config.keypoints.left_ear_index][0]
            right_ear_x = keypoints[self.mmpose_config.keypoints.right_ear_index][0]

            face_len = max(
                abs(int((right_ear_x - left_ear_x) * 1.1)), int(0.3 * bbox_width)
            )
            face_frame, face_xyxy = crop_frame(
                original_frame, face_center, (face_len, face_len)
            )

            if face_frame is not None and face_xyxy is not None:
                last_announce_time = runtime_parameters.get(
                    "time_last_announce_face", 0.0
                )
                current_frame_time = runtime_parameters.get(
                    "time_last_record_framerate", time.time()
                )

                if (
                    current_frame_time - last_announce_time
                    > self.inference_config.phone.face_announce_interval_seconds
                ):
                    announced_face_frame = face_frame

                render_detection_rectangle(
                    frame=frame,
                    text="Face",
                    xyxy=face_xyxy,
                    color="white",
                )

        result = {
            "performance": (posture_time, phone_time),
            "announced_face_frame": announced_face_frame,
            "posture": fusion_result["final_label"],
            "phone": phone_detected,
            "state": fusion_result["state"],
            "display_text": fusion_result["display_text"],
            "score_text": fusion_result["score_text"],
            # "face_xyxy": face_xyxy.tolist() if face_xyxy is not None else None,
            "face_xyxy": (
                face_xyxy.tolist()
                if hasattr(face_xyxy, "tolist")
                else face_xyxy if face_xyxy is not None else None
            ),
        }

        self.logger.info("Runtime one-person result: %s", result)
        return result