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Art Subpa-Asa

6 accepted papers

2025

Active Hyperspectral Imaging Using an Event Camera

CVPR 2025highlight

Hyperspectral imaging plays a critical role in numerous scientific and industrial fields. Conventional hyperspectral imaging systems often struggle with the trade-off between capture speed, spectral resolution, and bandwidth, particularly in dynamic environments. In this work, we present a novel eve…

Cited by 0SourcePDFScholar
2021

4D Hyperspectral Photoacoustic Data Restoration With Reliability Analysis

CVPR 2021poster

Hyperspectral photoacoustic (HSPA) spectroscopy is an emerging bi-modal imaging technology that is able to show the wavelength-dependent absorption distribution of the interior of a 3D volume. However, HSPA devices have to scan an object exhaustively in the spatial and spectral domains; and the acqu…

Cited by 4PDFScholar
2018

Variable Ring Light Imaging: Capturing Transient Subsurface Scattering with An Ordinary Camera

ECCV 2018poster

Subsurface scattering plays a significant role in determining the appearance of real-world surfaces. A light ray penetrating into the subsurface is repeatedly scattered and absorbed by particles along its path before reemerging from the outer interface, which determines its spectral radiance. We int…

Cited by 8SourcePDFScholar
2017

A Microfacet-Based Reflectance Model for Photometric Stereo With Highly Specular Surfaces

ICCV 2017poster

A precise, stable and invertible model for surface reflectance is the key to the success of photometric stereo with real world materials. Recent developments in the field have enabled shape recovery techniques for surfaces of various types, but an effective solution to directly estimating the surfac…

Cited by 28PDFScholar
2017

From RGB to Spectrum for Natural Scenes via Manifold-Based Mapping

ICCV 2017poster

Spectral analysis of natural scenes can provide much more detailed information about the scene than an ordinary RGB camera. The richer information provided by hyperspectral images has been beneficial to numerous applications, such as understanding natural environmental changes and classifying plants…

Cited by 125PDFScholar