Search Results for author: Zhuo Hui

Found 8 papers, 1 papers with code

AnyFlow: Arbitrary Scale Optical Flow with Implicit Neural Representation

no code implementations CVPR 2023 Hyunyoung Jung, Zhuo Hui, Lei Luo, Haitao Yang, Feng Liu, Sungjoo Yoo, Rakesh Ranjan, Denis Demandolx

To apply optical flow in practice, it is often necessary to resize the input to smaller dimensions in order to reduce computational costs.

Optical Flow Estimation

Learning to Separate Multiple Illuminants in a Single Image

no code implementations CVPR 2019 Zhuo Hui, Ayan Chakrabarti, Kalyan Sunkavalli, Aswin C. Sankaranarayanan

We present a method to separate a single image captured under two illuminants, with different spectra, into the two images corresponding to the appearance of the scene under each individual illuminant.

An Empirical Study of Dimensional Reduction Techniques for Facial Action Units Detection

no code implementations25 Mar 2016 Zhuo Hui, Wen-Sheng Chu

We compared linear (PCA and KPCA), manifold (LPP and LLE), supervised (LDA and KDA) and hybrid approaches (LSDA) to DR with respect to AU detection.

Action Unit Detection Computational Efficiency +1

Shape and Spatially-Varying Reflectance Estimation From Virtual Exemplars

1 code implementation16 Dec 2015 Zhuo Hui, Aswin C. Sankaranarayanan

At the core of our techniques is the assumption that the BRDF at each pixel lies in the non-negative span of a known BRDF dictionary. This assumption enables a per-pixel surface normal and BRDF estimation framework that is computationally tractable and requires no initialization in spite of the underlying problem being non-convex.

BRDF estimation

A Dictionary-based Approach for Estimating Shape and Spatially-Varying Reflectance

no code implementations14 Mar 2015 Zhuo Hui, Aswin C. Sankaranarayanan

We present a technique for estimating the shape and reflectance of an object in terms of its surface normals and spatially-varying BRDF.

BRDF estimation Object

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