2 papers
cs.CV2025
Towards Imperceptible Watermarking Via Environment Illumination for Consumer Cameras
Hodaka Kawachi, Tomoya Nakamura, Hiroaki Santo +4
This paper introduces a method for using LED-based environmental lighting to produce visually imperceptible watermarks for consumer cameras. Our approach optimizes an LED light sou…
cs.CV2025
Single-Image Depth from Defocus with Coded Aperture and Diffusion Posterior Sampling
Hodaka Kawachi, Jose Reinaldo Cunha Santos A. V. Silva Neto, Yasushi Yagi +2
We propose a single-snapshot depth-from-defocus (DFD) reconstruction method for coded-aperture imaging that replaces hand-crafted priors with a learned diffusion prior used purely…