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Digital micromirror device camera with per-pixel coded exposure for high dynamic range imaging.

Wei Feng, Fumin Zhang, Weijing Wang

|May 3, 2017

Summary

This summary is machine-generated.

This study introduces a novel digital micromirror device (DMD) camera for high dynamic range imaging (HDRI). The system uses pixel-level modulation to control light intensity, overcoming conventional camera limitations for clearer images.

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Area of Science:

Optics and Photonics
Digital Imaging Technology

Background:

Conventional digital cameras possess a limited dynamic range, restricting image quality in scenes with extreme lighting variations.
High dynamic range imaging (HDRI) is crucial for capturing detailed information in both bright and dark areas of a scene.

Purpose of the Study:

To develop a novel high dynamic range imaging (HDRI) method using a programmable digital micromirror device (DMD) camera.
To overcome the dynamic range limitations inherent in traditional digital cameras.

Main Methods:

Implementation of a novel programmable imaging system utilizing a digital micromirror device (DMD) camera.
Flexible modulation of spatial and temporal information of incident light at the pixel level.
Development and application of an adaptive light intensity control algorithm for per-pixel coded exposure.

Main Results:

Demonstration of effective high dynamic range imaging (HDRI) through experimental validation.
Successful implementation of HDRI on various objects, showcasing the system's versatility.
Achieved consistent and reasonable exposure intensity across camera pixels via DMD modulation.

Conclusions:

The proposed DMD camera system effectively achieves high dynamic range imaging (HDRI).
Pixel-level modulation by the DMD camera enables precise control over light intensity, enhancing image capture capabilities.
The adaptive light intensity control algorithm is key to recovering high dynamic range images accurately.