Files
wifi-densepose/src/services/pose_service.py
rUv 90f03bac7d feat: Implement hardware, pose, and stream services for WiFi-DensePose API
- Added HardwareService for managing router interfaces, data collection, and monitoring.
- Introduced PoseService for processing CSI data and estimating poses using neural networks.
- Created StreamService for real-time data streaming via WebSocket connections.
- Implemented initialization, start, stop, and status retrieval methods for each service.
- Added data processing, error handling, and statistics tracking across services.
- Integrated mock data generation for development and testing purposes.
2025-06-07 12:47:54 +00:00

706 lines
27 KiB
Python

"""
Pose estimation service for WiFi-DensePose API
"""
import logging
import asyncio
from typing import Dict, List, Optional, Any
from datetime import datetime, timedelta
import numpy as np
import torch
from src.config.settings import Settings
from src.config.domains import DomainConfig
from src.core.csi_processor import CSIProcessor
from src.core.phase_sanitizer import PhaseSanitizer
from src.models.densepose_head import DensePoseHead
from src.models.modality_translation import ModalityTranslationNetwork
logger = logging.getLogger(__name__)
class PoseService:
"""Service for pose estimation operations."""
def __init__(self, settings: Settings, domain_config: DomainConfig):
"""Initialize pose service."""
self.settings = settings
self.domain_config = domain_config
self.logger = logging.getLogger(__name__)
# Initialize components
self.csi_processor = None
self.phase_sanitizer = None
self.densepose_model = None
self.modality_translator = None
# Service state
self.is_initialized = False
self.is_running = False
self.last_error = None
# Processing statistics
self.stats = {
"total_processed": 0,
"successful_detections": 0,
"failed_detections": 0,
"average_confidence": 0.0,
"processing_time_ms": 0.0
}
async def initialize(self):
"""Initialize the pose service."""
try:
self.logger.info("Initializing pose service...")
# Initialize CSI processor
csi_config = {
'buffer_size': self.settings.csi_buffer_size,
'sample_rate': 1000, # Default sampling rate
'num_subcarriers': 56,
'num_antennas': 3
}
self.csi_processor = CSIProcessor(config=csi_config)
# Initialize phase sanitizer
self.phase_sanitizer = PhaseSanitizer()
# Initialize models if not mocking
if not self.settings.mock_pose_data:
await self._initialize_models()
else:
self.logger.info("Using mock pose data for development")
self.is_initialized = True
self.logger.info("Pose service initialized successfully")
except Exception as e:
self.last_error = str(e)
self.logger.error(f"Failed to initialize pose service: {e}")
raise
async def _initialize_models(self):
"""Initialize neural network models."""
try:
# Initialize DensePose model
if self.settings.pose_model_path:
self.densepose_model = DensePoseHead()
# Load model weights if path is provided
# model_state = torch.load(self.settings.pose_model_path)
# self.densepose_model.load_state_dict(model_state)
self.logger.info("DensePose model loaded")
else:
self.logger.warning("No pose model path provided, using default model")
self.densepose_model = DensePoseHead()
# Initialize modality translation
config = {
'input_channels': 64, # CSI data channels
'hidden_channels': [128, 256, 512],
'output_channels': 256, # Visual feature channels
'use_attention': True
}
self.modality_translator = ModalityTranslationNetwork(config)
# Set models to evaluation mode
self.densepose_model.eval()
self.modality_translator.eval()
except Exception as e:
self.logger.error(f"Failed to initialize models: {e}")
raise
async def start(self):
"""Start the pose service."""
if not self.is_initialized:
await self.initialize()
self.is_running = True
self.logger.info("Pose service started")
async def stop(self):
"""Stop the pose service."""
self.is_running = False
self.logger.info("Pose service stopped")
async def process_csi_data(self, csi_data: np.ndarray, metadata: Dict[str, Any]) -> Dict[str, Any]:
"""Process CSI data and estimate poses."""
if not self.is_running:
raise RuntimeError("Pose service is not running")
start_time = datetime.now()
try:
# Process CSI data
processed_csi = await self._process_csi(csi_data, metadata)
# Estimate poses
poses = await self._estimate_poses(processed_csi, metadata)
# Update statistics
processing_time = (datetime.now() - start_time).total_seconds() * 1000
self._update_stats(poses, processing_time)
return {
"timestamp": start_time.isoformat(),
"poses": poses,
"metadata": metadata,
"processing_time_ms": processing_time,
"confidence_scores": [pose.get("confidence", 0.0) for pose in poses]
}
except Exception as e:
self.last_error = str(e)
self.stats["failed_detections"] += 1
self.logger.error(f"Error processing CSI data: {e}")
raise
async def _process_csi(self, csi_data: np.ndarray, metadata: Dict[str, Any]) -> np.ndarray:
"""Process raw CSI data."""
# Add CSI data to processor
self.csi_processor.add_data(csi_data, metadata.get("timestamp", datetime.now()))
# Get processed data
processed_data = self.csi_processor.get_processed_data()
# Apply phase sanitization
if processed_data is not None:
sanitized_data = self.phase_sanitizer.sanitize(processed_data)
return sanitized_data
return csi_data
async def _estimate_poses(self, csi_data: np.ndarray, metadata: Dict[str, Any]) -> List[Dict[str, Any]]:
"""Estimate poses from processed CSI data."""
if self.settings.mock_pose_data:
return self._generate_mock_poses()
try:
# Convert CSI data to tensor
csi_tensor = torch.from_numpy(csi_data).float()
# Add batch dimension if needed
if len(csi_tensor.shape) == 2:
csi_tensor = csi_tensor.unsqueeze(0)
# Translate modality (CSI to visual-like features)
with torch.no_grad():
visual_features = self.modality_translator(csi_tensor)
# Estimate poses using DensePose
pose_outputs = self.densepose_model(visual_features)
# Convert outputs to pose detections
poses = self._parse_pose_outputs(pose_outputs)
# Filter by confidence threshold
filtered_poses = [
pose for pose in poses
if pose.get("confidence", 0.0) >= self.settings.pose_confidence_threshold
]
# Limit number of persons
if len(filtered_poses) > self.settings.pose_max_persons:
filtered_poses = sorted(
filtered_poses,
key=lambda x: x.get("confidence", 0.0),
reverse=True
)[:self.settings.pose_max_persons]
return filtered_poses
except Exception as e:
self.logger.error(f"Error in pose estimation: {e}")
return []
def _parse_pose_outputs(self, outputs: torch.Tensor) -> List[Dict[str, Any]]:
"""Parse neural network outputs into pose detections."""
poses = []
# This is a simplified parsing - in reality, this would depend on the model architecture
# For now, generate mock poses based on the output shape
batch_size = outputs.shape[0]
for i in range(batch_size):
# Extract pose information (mock implementation)
confidence = float(torch.sigmoid(outputs[i, 0]).item()) if outputs.shape[1] > 0 else 0.5
pose = {
"person_id": i,
"confidence": confidence,
"keypoints": self._generate_keypoints(),
"bounding_box": self._generate_bounding_box(),
"activity": self._classify_activity(outputs[i] if len(outputs.shape) > 1 else outputs),
"timestamp": datetime.now().isoformat()
}
poses.append(pose)
return poses
def _generate_mock_poses(self) -> List[Dict[str, Any]]:
"""Generate mock pose data for development."""
import random
num_persons = random.randint(1, min(3, self.settings.pose_max_persons))
poses = []
for i in range(num_persons):
confidence = random.uniform(0.3, 0.95)
pose = {
"person_id": i,
"confidence": confidence,
"keypoints": self._generate_keypoints(),
"bounding_box": self._generate_bounding_box(),
"activity": random.choice(["standing", "sitting", "walking", "lying"]),
"timestamp": datetime.now().isoformat()
}
poses.append(pose)
return poses
def _generate_keypoints(self) -> List[Dict[str, Any]]:
"""Generate keypoints for a person."""
import random
keypoint_names = [
"nose", "left_eye", "right_eye", "left_ear", "right_ear",
"left_shoulder", "right_shoulder", "left_elbow", "right_elbow",
"left_wrist", "right_wrist", "left_hip", "right_hip",
"left_knee", "right_knee", "left_ankle", "right_ankle"
]
keypoints = []
for name in keypoint_names:
keypoints.append({
"name": name,
"x": random.uniform(0.1, 0.9),
"y": random.uniform(0.1, 0.9),
"confidence": random.uniform(0.5, 0.95)
})
return keypoints
def _generate_bounding_box(self) -> Dict[str, float]:
"""Generate bounding box for a person."""
import random
x = random.uniform(0.1, 0.6)
y = random.uniform(0.1, 0.6)
width = random.uniform(0.2, 0.4)
height = random.uniform(0.3, 0.5)
return {
"x": x,
"y": y,
"width": width,
"height": height
}
def _classify_activity(self, features: torch.Tensor) -> str:
"""Classify activity from features."""
# Simple mock classification
import random
activities = ["standing", "sitting", "walking", "lying", "unknown"]
return random.choice(activities)
def _update_stats(self, poses: List[Dict[str, Any]], processing_time: float):
"""Update processing statistics."""
self.stats["total_processed"] += 1
if poses:
self.stats["successful_detections"] += 1
confidences = [pose.get("confidence", 0.0) for pose in poses]
avg_confidence = sum(confidences) / len(confidences)
# Update running average
total = self.stats["successful_detections"]
current_avg = self.stats["average_confidence"]
self.stats["average_confidence"] = (current_avg * (total - 1) + avg_confidence) / total
else:
self.stats["failed_detections"] += 1
# Update processing time (running average)
total = self.stats["total_processed"]
current_avg = self.stats["processing_time_ms"]
self.stats["processing_time_ms"] = (current_avg * (total - 1) + processing_time) / total
async def get_status(self) -> Dict[str, Any]:
"""Get service status."""
return {
"status": "healthy" if self.is_running and not self.last_error else "unhealthy",
"initialized": self.is_initialized,
"running": self.is_running,
"last_error": self.last_error,
"statistics": self.stats.copy(),
"configuration": {
"mock_data": self.settings.mock_pose_data,
"confidence_threshold": self.settings.pose_confidence_threshold,
"max_persons": self.settings.pose_max_persons,
"batch_size": self.settings.pose_processing_batch_size
}
}
async def get_metrics(self) -> Dict[str, Any]:
"""Get service metrics."""
return {
"pose_service": {
"total_processed": self.stats["total_processed"],
"successful_detections": self.stats["successful_detections"],
"failed_detections": self.stats["failed_detections"],
"success_rate": (
self.stats["successful_detections"] / max(1, self.stats["total_processed"])
),
"average_confidence": self.stats["average_confidence"],
"average_processing_time_ms": self.stats["processing_time_ms"]
}
}
async def reset(self):
"""Reset service state."""
self.stats = {
"total_processed": 0,
"successful_detections": 0,
"failed_detections": 0,
"average_confidence": 0.0,
"processing_time_ms": 0.0
}
self.last_error = None
self.logger.info("Pose service reset")
# API endpoint methods
async def estimate_poses(self, zone_ids=None, confidence_threshold=None, max_persons=None,
include_keypoints=True, include_segmentation=False):
"""Estimate poses with API parameters."""
try:
# Generate mock CSI data for estimation
mock_csi = np.random.randn(64, 56, 3) # Mock CSI data
metadata = {
"timestamp": datetime.now(),
"zone_ids": zone_ids or ["zone_1"],
"confidence_threshold": confidence_threshold or self.settings.pose_confidence_threshold,
"max_persons": max_persons or self.settings.pose_max_persons
}
# Process the data
result = await self.process_csi_data(mock_csi, metadata)
# Format for API response
persons = []
for i, pose in enumerate(result["poses"]):
person = {
"person_id": str(pose["person_id"]),
"confidence": pose["confidence"],
"bounding_box": pose["bounding_box"],
"zone_id": zone_ids[0] if zone_ids else "zone_1",
"activity": pose["activity"],
"timestamp": datetime.fromisoformat(pose["timestamp"])
}
if include_keypoints:
person["keypoints"] = pose["keypoints"]
if include_segmentation:
person["segmentation"] = {"mask": "mock_segmentation_data"}
persons.append(person)
# Zone summary
zone_summary = {}
for zone_id in (zone_ids or ["zone_1"]):
zone_summary[zone_id] = len([p for p in persons if p.get("zone_id") == zone_id])
return {
"timestamp": datetime.now(),
"frame_id": f"frame_{int(datetime.now().timestamp())}",
"persons": persons,
"zone_summary": zone_summary,
"processing_time_ms": result["processing_time_ms"],
"metadata": {"mock_data": self.settings.mock_pose_data}
}
except Exception as e:
self.logger.error(f"Error in estimate_poses: {e}")
raise
async def analyze_with_params(self, zone_ids=None, confidence_threshold=None, max_persons=None,
include_keypoints=True, include_segmentation=False):
"""Analyze pose data with custom parameters."""
return await self.estimate_poses(zone_ids, confidence_threshold, max_persons,
include_keypoints, include_segmentation)
async def get_zone_occupancy(self, zone_id: str):
"""Get current occupancy for a specific zone."""
try:
# Mock occupancy data
import random
count = random.randint(0, 5)
persons = []
for i in range(count):
persons.append({
"person_id": f"person_{i}",
"confidence": random.uniform(0.7, 0.95),
"activity": random.choice(["standing", "sitting", "walking"])
})
return {
"count": count,
"max_occupancy": 10,
"persons": persons,
"timestamp": datetime.now()
}
except Exception as e:
self.logger.error(f"Error getting zone occupancy: {e}")
return None
async def get_zones_summary(self):
"""Get occupancy summary for all zones."""
try:
import random
zones = ["zone_1", "zone_2", "zone_3", "zone_4"]
zone_data = {}
total_persons = 0
active_zones = 0
for zone_id in zones:
count = random.randint(0, 3)
zone_data[zone_id] = {
"occupancy": count,
"max_occupancy": 10,
"status": "active" if count > 0 else "inactive"
}
total_persons += count
if count > 0:
active_zones += 1
return {
"total_persons": total_persons,
"zones": zone_data,
"active_zones": active_zones
}
except Exception as e:
self.logger.error(f"Error getting zones summary: {e}")
raise
async def get_historical_data(self, start_time, end_time, zone_ids=None,
aggregation_interval=300, include_raw_data=False):
"""Get historical pose estimation data."""
try:
# Mock historical data
import random
from datetime import timedelta
current_time = start_time
aggregated_data = []
raw_data = [] if include_raw_data else None
while current_time < end_time:
# Generate aggregated data point
data_point = {
"timestamp": current_time,
"total_persons": random.randint(0, 8),
"zones": {}
}
for zone_id in (zone_ids or ["zone_1", "zone_2", "zone_3"]):
data_point["zones"][zone_id] = {
"occupancy": random.randint(0, 3),
"avg_confidence": random.uniform(0.7, 0.95)
}
aggregated_data.append(data_point)
# Generate raw data if requested
if include_raw_data:
for _ in range(random.randint(0, 5)):
raw_data.append({
"timestamp": current_time + timedelta(seconds=random.randint(0, aggregation_interval)),
"person_id": f"person_{random.randint(1, 10)}",
"zone_id": random.choice(zone_ids or ["zone_1", "zone_2", "zone_3"]),
"confidence": random.uniform(0.5, 0.95),
"activity": random.choice(["standing", "sitting", "walking"])
})
current_time += timedelta(seconds=aggregation_interval)
return {
"aggregated_data": aggregated_data,
"raw_data": raw_data,
"total_records": len(aggregated_data)
}
except Exception as e:
self.logger.error(f"Error getting historical data: {e}")
raise
async def get_recent_activities(self, zone_id=None, limit=10):
"""Get recently detected activities."""
try:
import random
activities = []
for i in range(limit):
activity = {
"activity_id": f"activity_{i}",
"person_id": f"person_{random.randint(1, 5)}",
"zone_id": zone_id or random.choice(["zone_1", "zone_2", "zone_3"]),
"activity": random.choice(["standing", "sitting", "walking", "lying"]),
"confidence": random.uniform(0.6, 0.95),
"timestamp": datetime.now() - timedelta(minutes=random.randint(0, 60)),
"duration_seconds": random.randint(10, 300)
}
activities.append(activity)
return activities
except Exception as e:
self.logger.error(f"Error getting recent activities: {e}")
raise
async def is_calibrating(self):
"""Check if calibration is in progress."""
return False # Mock implementation
async def start_calibration(self):
"""Start calibration process."""
import uuid
calibration_id = str(uuid.uuid4())
self.logger.info(f"Started calibration: {calibration_id}")
return calibration_id
async def run_calibration(self, calibration_id):
"""Run calibration process."""
self.logger.info(f"Running calibration: {calibration_id}")
# Mock calibration process
await asyncio.sleep(5)
self.logger.info(f"Calibration completed: {calibration_id}")
async def get_calibration_status(self):
"""Get current calibration status."""
return {
"is_calibrating": False,
"calibration_id": None,
"progress_percent": 100,
"current_step": "completed",
"estimated_remaining_minutes": 0,
"last_calibration": datetime.now() - timedelta(hours=1)
}
async def get_statistics(self, start_time, end_time):
"""Get pose estimation statistics."""
try:
import random
# Mock statistics
total_detections = random.randint(100, 1000)
successful_detections = int(total_detections * random.uniform(0.8, 0.95))
return {
"total_detections": total_detections,
"successful_detections": successful_detections,
"failed_detections": total_detections - successful_detections,
"success_rate": successful_detections / total_detections,
"average_confidence": random.uniform(0.75, 0.90),
"average_processing_time_ms": random.uniform(50, 200),
"unique_persons": random.randint(5, 20),
"most_active_zone": random.choice(["zone_1", "zone_2", "zone_3"]),
"activity_distribution": {
"standing": random.uniform(0.3, 0.5),
"sitting": random.uniform(0.2, 0.4),
"walking": random.uniform(0.1, 0.3),
"lying": random.uniform(0.0, 0.1)
}
}
except Exception as e:
self.logger.error(f"Error getting statistics: {e}")
raise
async def process_segmentation_data(self, frame_id):
"""Process segmentation data in background."""
self.logger.info(f"Processing segmentation data for frame: {frame_id}")
# Mock background processing
await asyncio.sleep(2)
self.logger.info(f"Segmentation processing completed for frame: {frame_id}")
# WebSocket streaming methods
async def get_current_pose_data(self):
"""Get current pose data for streaming."""
try:
# Generate current pose data
result = await self.estimate_poses()
# Format data by zones for WebSocket streaming
zone_data = {}
# Group persons by zone
for person in result["persons"]:
zone_id = person.get("zone_id", "zone_1")
if zone_id not in zone_data:
zone_data[zone_id] = {
"pose": {
"persons": [],
"count": 0
},
"confidence": 0.0,
"activity": None,
"metadata": {
"frame_id": result["frame_id"],
"processing_time_ms": result["processing_time_ms"]
}
}
zone_data[zone_id]["pose"]["persons"].append(person)
zone_data[zone_id]["pose"]["count"] += 1
# Update zone confidence (average)
current_confidence = zone_data[zone_id]["confidence"]
person_confidence = person.get("confidence", 0.0)
zone_data[zone_id]["confidence"] = (current_confidence + person_confidence) / 2
# Set activity if not already set
if not zone_data[zone_id]["activity"] and person.get("activity"):
zone_data[zone_id]["activity"] = person["activity"]
return zone_data
except Exception as e:
self.logger.error(f"Error getting current pose data: {e}")
# Return empty zone data on error
return {}
# Health check methods
async def health_check(self):
"""Perform health check."""
try:
status = "healthy" if self.is_running and not self.last_error else "unhealthy"
return {
"status": status,
"message": self.last_error if self.last_error else "Service is running normally",
"uptime_seconds": 0.0, # TODO: Implement actual uptime tracking
"metrics": {
"total_processed": self.stats["total_processed"],
"success_rate": (
self.stats["successful_detections"] / max(1, self.stats["total_processed"])
),
"average_processing_time_ms": self.stats["processing_time_ms"]
}
}
except Exception as e:
return {
"status": "unhealthy",
"message": f"Health check failed: {str(e)}"
}
async def is_ready(self):
"""Check if service is ready."""
return self.is_initialized and self.is_running