Event-based Asynchronous HDR Imaging by Temporal Incident Light Modulation
<|reference_start|>Event-based Asynchronous HDR Imaging by Temporal Incident Light Modulation: Dynamic Range (DR) is a pivotal characteristic of imaging systems. Current frame-based cameras struggle to achieve high dynamic range imaging due to the conflict between globally uniform exposure and spatially variant scene illumination. In this paper, we propose AsynHDR, a Pixel-Asynchronous HDR imaging system, based on key insights into the challenges in HDR imaging and the unique event-generating mechanism of Dynamic Vision Sensors (DVS). Our proposed AsynHDR system integrates the DVS with a set of LCD panels. The LCD panels modulate the irradiance incident upon the DVS by altering their transparency, thereby triggering the pixel-independent event streams. The HDR image is subsequently decoded from the event streams through our temporal-weighted algorithm. Experiments under standard test platform and several challenging scenes have verified the feasibility of the system in HDR imaging task.<|reference_end|>
@article{wu2024event-based,
    title={Event-based Asynchronous HDR Imaging by Temporal Incident Light
  Modulation},
    author={Yuliang Wu, Ganchao Tan, Jinze Chen, Wei Zhai, Yang Cao, Zheng-Jun Zha},
    journal={arXiv preprint arXiv:2403.09392},
    year={2024},
    archivePrefix={arXiv},
    eprint={2403.09392},
    primaryClass={eess.IV cs.CV}
}