Build your own compressed-sensing 1-pixel camera
5 days ago
- #LED-matrix
- #single-pixel-camera
- #compressed-sensing
- Introduction to a single-pixel camera concept using an LED matrix and a single photoresistor without moving parts.
- Explanation of compressed sensing and structured illumination for image reconstruction.
- List of required supplies including Raspberry Pi, LED matrix, lenses, and 3D printing components.
- System overview detailing how unique light patterns and single photodetector measurements can reconstruct images.
- Optical design considerations with ray diagrams and lens configurations.
- 3D printing and assembly of mounts and translation stages for alignment.
- Use of Hadamard matrices for efficient illumination patterns and compressed sensing.
- Design and printing of transmissive objects for testing the system.
- Alignment of the photodetector and data collection process using Arduino and Raspberry Pi.
- Image reconstruction method in Matlab using illumination patterns and photodetector measurements.