GitHub - JSK-Project/OpenTarget-Core: Laser shooting platform for Raspberry Pi using OpenCV and projector targets.

Laser shooting platform for Raspberry Pi using OpenCV.

OpenTarget-Core is a modular framework for building laser shooting games using a camera and a projector.
It detects laser hits in real-time and maps them to screen coordinates using camera calibration.

The project supports multiple shooting games such as Trap, Skeet and Target shooting.

Demo Video

Features

Real-time laser detection with OpenCV
Camera calibration using ArUco markers
Modular game architecture
Multiple shooting games included
Designed for Raspberry Pi + projector setups

Demo Concept

Camera observes the projected screen and detects the laser hit position. Laser → Camera → OpenCV → Hit detection → Game logic

Hardware

Typical setup:

Raspberry Pi 4 / 5
Camera module
Display or projector
Laser emitter
Tripod or fixed camera mount

Optional:

IR band-pass filter
IR laser module

Project Structure

OpenTarget-Core
│
├── main.py
│
├── core/
│   ├── base_game.py
│   ├── game_loader.py
│   └── laser_platform.py
│
├── hardware/
│   ├── camera_manager.py
│   └── sound_manager.py
│
├── games/
│   ├── trap/
│   │   └── game.py
│   ├── skeet/
│   │   └── game.py
│   └── laser_target/
│       └── game.py
│
├── assets/
│   └── sounds/
│
└── config/
　  ├── user_settings.py
 　 └── default_config.py

Installation

Clone the repository

git clone https://github.com/YOURNAME/OpenTarget-Core.git
cd OpenTarget-Core

Install dependencies

pip install -r requirements.txt

On Raspberry Pi it may be preferable to install OpenCV from apt:

sudo apt install python3-opencv

Run

List available games

python3 main.py --list-games

Run trap shooting

python3 main.py --game trap

Run skeet shooting

python3 main.py --game skeet

Run laser target

python3 main.py --game laser_target

Adjust exposure

python3 main.py --game exposure

Calibration

Run calibration mode
Align camera with screen markers
Wait until calibration completes
Calibration data will be saved automatically

If using ir filters for gameplay, remove them during calibration if necessary.

Notes

This project is under active development.

Some camera backends, trigger systems, and synchronization features are experimental.

Hardware configuration may vary depending on the camera and display used.

Planned features:

Global shutter camera support
External trigger laser detection
IR laser mode
Higher speed detection pipeline

License

MIT License