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-- User streaks CREATE TABLE streaks ( user_id UUID PRIMARY KEY, current_streak_days INT, longest_streak_days INT, last_smile_date DATE ); 5.1 Smile Detection Pipeline (On-Device for privacy/speed) # Pseudo-code using MediaPipe Face Mesh import mediapipe as mp import cv2 import numpy as np mp_face_mesh = mp.solutions.face_mesh face_mesh = mp_face_mesh.FaceMesh(static_image_mode=False, min_detection_confidence=0.5)
final_score = (intensity * 0.4) + (symmetry * 0.4) + (duchenne * 20) return round(min(100, final_score), 2) // smile_detector.dart import 'package:tflite_flutter/tflite_flutter.dart'; import 'package:camera/camera.dart'; class SmileDetector Interpreter? _interpreter;
# Smile intensity (mouth opening + lip corner pull) mouth_width = distance(left_mouth, right_mouth) mouth_height = distance(upper_lip, lower_lip) intensity = min(100, (mouth_width / normalized_width) * 50 + (mouth_height / normalized_height) * 50)
-- Smile Frames (optional for detailed analysis) CREATE TABLE smile_frames ( id UUID PRIMARY KEY, session_id UUID REFERENCES smile_sessions(id), timestamp_offset_ms INT, score DECIMAL(3,2), symmetry DECIMAL(3,2), intensity DECIMAL(3,2), eye_squint BOOLEAN -- Duchenne marker );
# Duchenne marker (eye squint) left_eye_open = eye_aspect_ratio(face_landmarks, is_left=True) right_eye_open = eye_aspect_ratio(face_landmarks, is_left=False) duchenne = 1 if (left_eye_open < 0.25 and right_eye_open < 0.25) else 0
1. Product Overview EVE Smile is a mobile-first application that uses computer vision, voice analysis, and positive psychology to help users improve emotional well-being through guided smile exercises, mood tracking, and real-time feedback.
Future<void> loadModel() async _interpreter = await Interpreter.fromAsset('smile_model.tflite');
