This talk explores the transformative potential of modulo imaging for achieving unlimited dynamic range capture, fundamentally reimagining how we approach high dynamic range photography beyond traditional sensor limitations. By introducing cyclical intensity wrapping through the modulo operator, we unlock new opportunities for computational imaging that transcends conventional well-capacity constraints.
The modulo imaging paradigm presents fascinating new challenges in distinguishing authentic scene structure from artificial wrap discontinuities, a problem that pushes the boundaries of classical phase unwrapping into unexplored territory. Deep learning has emerged as a natural solution, providing advanced pattern-recognition capabilities to resolve ambiguities that traditional optimization methods cannot effectively address.
We present complementary approaches leveraging unrolled optimization networks and feature lifting strategies that teach neural architectures to handle wrapped measurements effectiveness. The introduction of scaling equivariance principles enables robust adaptation across varying exposure conditions, while physics-informed input representations guide networks toward meaningful reconstructions.
This work addresses fundamental questions about unlimited sampling theory in practical imaging systems, revealing how modulo measurements can codify arbitrarily bright scenes within finite bit depths. The implications extend beyond photography into autonomous systems, scientific imaging, and any application demanding extreme dynamic range. These advances establish computational modulo imaging as a viable pathway toward truly unlimited dynamic range capture, opening new frontiers in computational photography.
Resources
About the Speaker
Brayan Monroy (Student Member, IEEE) received the B.S. and M.Sc. degree in systems engineering in 2022 and 2024, respectively, from the Universidad Industrial de Santander, Bucaramanga, Colombia, where he is currently working toward a Ph.D. in Computer Science. His work includes developing methodologies for self-supervised learning beyond Gaussian noise assumptions, exploring re-corruption strategies, and contributing to HDR image reconstruction through supervised and semi-supervised learning strategies from modulo measurements, including optimization-based algorithms, with applications in autonomous driving scenarios. His research interests include computational imaging, self-supervised learning, and imaging inverse problems.