Search Results for author: Junxuan Li

Found 15 papers, 3 papers with code

V2VSSC: A 3D Semantic Scene Completion Benchmark for Perception with Vehicle to Vehicle Communication

no code implementations7 Feb 2024 Yuanfang Zhang, Junxuan Li, Kaiqing Luo, Yiying Yang, Jiayi Han, Nian Liu, Denghui Qin, Peng Han, Chengpei Xu

Extensive experiments demonstrate that by leveraging V2V communication, the SSC performance can be increased by 8. 3% on geometric metric IoU and 6. 0% mIOU.

3D Semantic Scene Completion Autonomous Vehicles

Relightable Gaussian Codec Avatars

no code implementations6 Dec 2023 Shunsuke Saito, Gabriel Schwartz, Tomas Simon, Junxuan Li, Giljoo Nam

The fidelity of relighting is bounded by both geometry and appearance representations.

WildLight: In-the-wild Inverse Rendering with a Flashlight

1 code implementation CVPR 2023 Ziang Cheng, Junxuan Li, Hongdong Li

Our system recovers scene geometry and reflectance using only multi-view images captured by a smartphone.

3D Reconstruction Inverse Rendering

MEGANE: Morphable Eyeglass and Avatar Network

no code implementations CVPR 2023 Junxuan Li, Shunsuke Saito, Tomas Simon, Stephen Lombardi, Hongdong Li, Jason Saragih

However, modeling the geometric and appearance interactions of glasses and the face of virtual representations of humans is challenging.

Image Generation Inverse Rendering

Self-calibrating Photometric Stereo by Neural Inverse Rendering

1 code implementation16 Jul 2022 Junxuan Li, Hongdong Li

This paper tackles the task of uncalibrated photometric stereo for 3D object reconstruction, where both the object shape, object reflectance, and lighting directions are unknown.

3D Object Reconstruction Inverse Rendering +1

Neural Reflectance for Shape Recovery with Shadow Handling

1 code implementation CVPR 2022 Junxuan Li, Hongdong Li

This network is able to leverage the observed photometric variance and shadows on the surface, and recover both surface shape and general non-Lambertian reflectance.

Neural Plenoptic Sampling: Capture Light-field from Imaginary Eyes

no code implementations29 Sep 2021 Junxuan Li, Yujiao Shi, Hongdong Li

It encodes a complete light-field (\ie, lumigraph) therefore allows one to freely roam in the space and view the scene from any location in any direction.

Novel View Synthesis Position

Neural Photometric Stereo for Shape and Material Estimation

no code implementations29 Sep 2021 Junxuan Li, Hongdong Li

This paper addresses a challenging Photometric-Stereo problem where the object to be reconstructed has unknown, non-Lambertian, and possibly spatially-varying surface materials.

Lighting, Reflectance and Geometry Estimation From 360deg Panoramic Stereo

no code implementations CVPR 2021 Junxuan Li, Hongdong Li, Yasuyuki Matsushita

We propose a method for estimating high-definition spatially-varying lighting, reflectance, and geometry of a scene from 360deg stereo images.

Lighting, Reflectance and Geometry Estimation from 360$^{\circ}$ Panoramic Stereo

no code implementations20 Apr 2021 Junxuan Li, Hongdong Li, Yasuyuki Matsushita

We propose a method for estimating high-definition spatially-varying lighting, reflectance, and geometry of a scene from 360$^{\circ}$ stereo images.

Learning to Minify Photometric Stereo

no code implementations CVPR 2019 Junxuan Li, Antonio Robles-Kelly, Shaodi You, Yasuyuki Matsushita

Photometric stereo estimates the surface normal given a set of images acquired under different illumination conditions.

Predictive Modeling with Delayed Information: a Case Study in E-commerce Transaction Fraud Control

no code implementations14 Nov 2018 Junxuan Li, Yung-wen Liu, Yuting Jia, Yifei Ren, Jay Nanduri

Using partially mature data directly for predictive modeling in an uncertain probabilistic decision environment would lead to significant inaccuracy on risk decision-making.

Decision Making

Discriminative Data-driven Self-adaptive Fraud Control Decision System with Incomplete Information

no code implementations3 Oct 2018 Junxuan Li, Yung-wen Liu, Yuting Jia, Jay Nanduri

While E-commerce has been growing explosively and online shopping has become popular and even dominant in the present era, online transaction fraud control has drawn considerable attention in business practice and academic research.

A Frequency Domain Neural Network for Fast Image Super-resolution

no code implementations8 Dec 2017 Junxuan Li, ShaoDi You, Antonio Robles-Kelly

Moreover, the non-linearity in deep nets, often achieved by a rectifier unit, is here cast as a convolution in the frequency domain.

Image Super-Resolution

Secrets in Computing Optical Flow by Convolutional Networks

no code implementations4 Oct 2017 Junxuan Li

Convolutional neural networks (CNNs) have been widely used over many areas in compute vision.

General Classification Optical Flow Estimation +1

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