27 citations · 66 across the 23 of their papers we have counts for
29 papers
Conditional Imaging for Privacy-Preserving Visual Sensing
Hengyu Lian, Debabrata Mandal, Anzhou Wen +3
Conventional visual sensing faces a fundamental dilemma: information that should remain private today may need to be recovered tomorrow. This challenge is becoming increasingly imp…
HoOPOE: A Holography-Optimized Perceptual ObjectivE function
Ethan Chen, Xi Peng, Alexandre Chapiro +6
Holographic devices must reconstruct an entire light field given a finite number of spatial light modulator (SLM) pixels, and must do so using scalar-wave diffraction from coherent…
EPIC: Epipolar-Consistent 360° Immersive Stereo Video Generation
Debabrata Mandal, Dongdong Fu, Jonathon Miller +3
Immersive displays can enable rich and diverse virtual experiences. Manually authoring every possible experience to realize this potential, however, is prohibitively expensive, dif…
Intrinsic Limitations of Single Layer Polychromatic Metalens for Virtual Reality Visors
Myunghoo Lee, Ben Nguyen, Zhihao Zhou +7
Virtual and augmented reality (VR/AR) visors require compact and lightweight optics. Metalenses have been widely proposed as ultrathin replacements for bulky refractive eyepieces,…
DeltaCam: Differential Intrinsic Camera Modeling for Video Generation
Debabrata Mandal, Zhihan Peng, Yujie Wang +1
Incorporating camera intrinsics into video generation models offers a principled way to control not only scene dynamics but also the imaging process that governs visual appearance.…
Ellipsography: Single-Shot Speckle-Free Holography via Vectorial Interference Shaping
Anzhou Wen, Praneeth Chakravarthula
Holographic displays are widely regarded as the "ultimate" display technology, promising immersive 3D visuals with natural depth cues, continuous parallax, and perceptual realism.…
UnSCAR: Universal, Scalable, Controllable, and Adaptable Image Restoration
Debabrata Mandal, Soumitri Chattopadhyay, Yujie Wang +2
Universal image restoration aims to recover clean images from arbitrary real-world degradations using a single inference model. Despite significant progress, existing all-in-one re…
Robust Single-shot Structured Light 3D Imaging via Neural Feature Decoding
Jiaheng Li, Qiyu Dai, Lihan Li +4
We consider the problem of active 3D imaging using single-shot structured light systems, which are widely employed in commercial 3D sensing devices such as Apple Face ID and Intel…
Enabling High-Quality In-the-Wild Imaging from Severely Aberrated Metalens Bursts
Debabrata Mandal, Zhihan Peng, Yujie Wang +1
We tackle the challenge of robust, in-the-wild imaging using ultra-thin nanophotonic metalens cameras. Meta-lenses, composed of planar arrays of nanoscale scatterers, promise drama…
Meta-optical Miniscope for Multifunctional Imaging
Zhihao Zhou, Khushboo Kumari, Ningzhi Xie +6
Miniaturized microscopes (miniscopes) have opened a new frontier in animal behavior studies, enabling real-time imaging of neuron activity while leaving animals largely unconstrain…
UniCoRN: Latent Diffusion-based Unified Controllable Image Restoration Network across Multiple Degradations
Debabrata Mandal, Soumitri Chattopadhyay, Guansen Tong +1
Image restoration is essential for enhancing degraded images across computer vision tasks. However, most existing methods address only a single type of degradation (e.g., blur, noi…
High-Speed Dynamic 3D Imaging with Sensor Fusion Splatting
Zihao Zou, Ziyuan Qu, Xi Peng +3
Capturing and reconstructing high-speed dynamic 3D scenes has numerous applications in computer graphics, vision, and interdisciplinary fields such as robotics, aerodynamics, and e…
FlatTrack: Eye-tracking with ultra-thin lensless cameras
Purvam Jain, Althaf M. Nazar, Salman S. Khan +2
Existing eye trackers use cameras based on thick compound optical elements, necessitating the cameras to be placed at focusing distance from the eyes. This results in the overall b…
Event fields: Capturing light fields at high speed, resolution, and dynamic range
Ziyuan Qu, Zihao Zou, Vivek Boominathan +2
Event cameras, which feature pixels that independently respond to changes in brightness, are becoming increasingly popular in high-speed applications due to their lower latency, re…
Aberration Correcting Vision Transformers for High-Fidelity Metalens Imaging
Byeonghyeon Lee, Youbin Kim, Yongjae Jo +7
Metalens is an emerging optical system with an irreplaceable merit in that it can be manufactured in ultra-thin and compact sizes, which shows great promise in various applications…
Structured light with a million light planes per second
Dhawal Sirikonda, Praneeth Chakravarthula, Ioannis Gkioulekas +1
We introduce a structured light system that enables full-frame 3D scanning at speeds of , four times faster than the previous fastest systems. Our key innovation i…
Pupil-Adaptive 3D Holography Beyond Coherent Depth-of-Field
Yujie Wang, Baoquan Chen, Praneeth Chakravarthula
Recent holographic display approaches propelled by deep learning have shown remarkable success in enabling high-fidelity holographic projections. However, these displays have still…
End-to-End Hybrid Refractive-Diffractive Lens Design with Differentiable Ray-Wave Model
Xinge Yang, Matheus Souza, Kunyi Wang +3
Hybrid refractive-diffractive lenses combine the light efficiency of refractive lenses with the information encoding power of diffractive optical elements (DOE), showing great pote…
DOF-GS:Adjustable Depth-of-Field 3D Gaussian Splatting for Post-Capture Refocusing, Defocus Rendering and Blur Removal
Yujie Wang, Praneeth Chakravarthula, Baoquan Chen
3D Gaussian Splatting (3DGS) techniques have recently enabled high-quality 3D scene reconstruction and real-time novel view synthesis. These approaches, however, are limited by the…
Beating bandwidth limits for large aperture broadband nano-optics
Johannes E. Fröch, Praneeth K. Chakravarthula, Jipeng Sun +10
Flat optics have been proposed as an attractive approach for the implementation of new imaging and sensing modalities to replace and augment refractive optics. However, chromatic a…
Thin On-Sensor Nanophotonic Array Cameras
Praneeth Chakravarthula, Jipeng Sun, Xiao Li +6
Today's commodity camera systems rely on compound optics to map light originating from the scene to positions on the sensor where it gets recorded as an image. To record images wit…
Spatially Varying Nanophotonic Neural Networks
Kaixuan Wei, Xiao Li, Johannes Froech +5
The explosive growth of computation and energy cost of artificial intelligence has spurred strong interests in new computing modalities as potential alternatives to conventional el…
Stochastic Light Field Holography
Florian Schiffers, Praneeth Chakravarthula, Nathan Matsuda +5
The Visual Turing Test is the ultimate goal to evaluate the realism of holographic displays. Previous studies have focused on addressing challenges such as limited étendue and imag…
ChromaCorrect: Prescription Correction in Virtual Reality Headsets through Perceptual Guidance
Ahmet Güzel, Jeanne Beyazian, Praneeth Chakravarthula +1
A large portion of today's world population suffer from vision impairments and wear prescription eyeglasses. However, eyeglasses causes additional bulk and discomfort when used wit…