QUICKDIM – Smart Dimension Measuring Spectacle

Overview QUICKDIM is a smart wearable system that measures real-world object dimensions using computer vision and a Time-of-Flight sensor.

Components Used

• ESP32-CAM (OV3660)
• VL53L0X ToF Sensor
• OLED Display (SSD1306)
• Li-Po Battery

Working Principle

1. Camera captures image
2. YOLO detects object → gives pixel size
3. ToF sensor measures distance
4. Real-world size is calculated
5. Output is displayed on OLED

Mathematical Model Real Size = (Pixel Size × Distance) / Focal Length

System Architecture

• ESP32 → image capture + sensor data

• PC → YOLO processing + dimension calculation

• OLED → displays result

  Features

• Real-time measurement

• Hands-free operation

• Portable and lightweight

  Limitations

• Requires calibration

• Affected by lighting conditions

• Errors for tilted objects

  Technologies Used

• Arduino (ESP32)

• Python (YOLO, OpenCV)