Search Results for author: Seung-Hwan Baek

Found 27 papers, 7 papers with code

Limitations of Data-Driven Spectral Reconstruction -- An Optics-Aware Analysis

no code implementations8 Jan 2024 Qiang Fu, Matheus Souza, Eunsue Choi, Suhyun Shin, Seung-Hwan Baek, Wolfgang Heidrich

Hyperspectral imaging empowers computer vision systems with the distinct capability of identifying materials through recording their spectral signatures.

Data Augmentation Spectral Reconstruction

UGPNet: Universal Generative Prior for Image Restoration

no code implementations31 Dec 2023 Hwayoon Lee, Kyoungkook Kang, Hyeongmin Lee, Seung-Hwan Baek, Sunghyun Cho

UGPNet first restores the image structure of a degraded input using a regression model and synthesizes a perceptually-realistic image with a generative model on top of the regressed output.

Deblurring Denoising +3

ParamISP: Learned Forward and Inverse ISPs using Camera Parameters

no code implementations20 Dec 2023 Woohyeok Kim, GeonU Kim, Junyong Lee, Seungyong Lee, Seung-Hwan Baek, Sunghyun Cho

RAW images are rarely shared mainly due to its excessive data size compared to their sRGB counterparts obtained by camera ISPs.

Deblurring HDR Reconstruction

Differentiable Point-based Inverse Rendering

no code implementations5 Dec 2023 Hoon-Gyu Chung, Seokjun Choi, Seung-Hwan Baek

To this end, we adopt point-based rendering, eliminating the need for multiple samplings per ray, typical of volumetric rendering, thus significantly enhancing the speed of inverse rendering.

Computational Efficiency Inverse Rendering +1

Dispersed Structured Light for Hyperspectral 3D Imaging

no code implementations30 Nov 2023 Suhyun Shin, Seokjun Choi, Felix Heide, Seung-Hwan Baek

In this work, we present Dispersed Structured Light (DSL), a cost-effective and compact method for accurate hyperspectral 3D imaging.

3D Reconstruction

Spectral and Polarization Vision: Spectro-polarimetric Real-world Dataset

no code implementations29 Nov 2023 Yujin Jeon, Eunsue Choi, Youngchan Kim, Yunseong Moon, Khalid Omer, Felix Heide, Seung-Hwan Baek

Image datasets are essential not only in validating existing methods in computer vision but also in developing new methods.

Mesh Density Adaptation for Template-based Shape Reconstruction

1 code implementation30 Jul 2023 Yucheol Jung, Hyomin Kim, Gyeongha Hwang, Seung-Hwan Baek, Seungyong Lee

In 3D shape reconstruction based on template mesh deformation, a regularization, such as smoothness energy, is employed to guide the reconstruction into a desirable direction.

3D Shape Reconstruction Inverse Rendering

Polarimetric iToF: Measuring High-Fidelity Depth through Scattering Media

no code implementations CVPR 2023 Daniel S. Jeon, Andreas Meuleman, Seung-Hwan Baek, Min H. Kim

In this work, we propose a polarimetric iToF imaging method that can capture depth information robustly through scattering media.

Differentiable Display Photometric Stereo

no code implementations23 Jun 2023 Seokjun Choi, Seungwoo Yoon, Giljoo Nam, Seungyong Lee, Seung-Hwan Baek

In this paper, we present differentiable display photometric stereo (DDPS), addressing an often overlooked challenge in display photometric stereo: the design of display patterns.

Neural 360$^\circ$ Structured Light with Learned Metasurfaces

no code implementations23 Jun 2023 Eunsue Choi, Gyeongtae Kim, Jooyeong Yun, Yujin Jeon, Junsuk Rho, Seung-Hwan Baek

We have utilized neural 360$^\circ$ structured light for holographic light projection and 3D imaging.

Depth Estimation

Neural Spectro-polarimetric Fields

no code implementations21 Jun 2023 Youngchan Kim, Wonjoon Jin, Sunghyun Cho, Seung-Hwan Baek

Here, we propose to model spectro-polarimetric fields, the spatial Stokes-vector distribution of any light ray at an arbitrary wavelength.

valid

Multi-view Spectral Polarization Propagation for Video Glass Segmentation

no code implementations ICCV 2023 Yu Qiao, Bo Dong, Ao Jin, Yu Fu, Seung-Hwan Baek, Felix Heide, Pieter Peers, Xiaopeng Wei, Xin Yang

In this paper, we present the first polarization-guided video glass segmentation propagation solution (PGVS-Net) that can robustly and coherently propagate glass segmentation in RGB-P video sequences.

Image Segmentation Segmentation +1

Dr.3D: Adapting 3D GANs to Artistic Drawings

no code implementations30 Nov 2022 Wonjoon Jin, Nuri Ryu, Geonung Kim, Seung-Hwan Baek, Sunghyun Cho

To tackle this, we present Dr. 3D, a novel adaptation approach that adapts an existing 3D GAN to artistic drawings.

Image Generation Pose Estimation

BigColor: Colorization using a Generative Color Prior for Natural Images

1 code implementation20 Jul 2022 Geonung Kim, Kyoungkook Kang, Seongtae Kim, Hwayoon Lee, Sehoon Kim, Jonghyun Kim, Seung-Hwan Baek, Sunghyun Cho

In this paper, we propose BigColor, a novel colorization approach that provides vivid colorization for diverse in-the-wild images with complex structures.

Colorization

Glass Segmentation Using Intensity and Spectral Polarization Cues

no code implementations CVPR 2022 Haiyang Mei, Bo Dong, Wen Dong, Jiaxi Yang, Seung-Hwan Baek, Felix Heide, Pieter Peers, Xiaopeng Wei, Xin Yang

Transparent and semi-transparent materials pose significant challenges for existing scene understanding and segmentation algorithms due to their lack of RGB texture which impedes the extraction of meaningful features.

Scene Understanding Segmentation +1

All-photon Polarimetric Time-of-Flight Imaging

no code implementations CVPR 2022 Seung-Hwan Baek, Felix Heide

Conventional ToF imaging methods estimate the depth by sending pulses of light into a scene and measuring the ToF of the first-arriving photons directly reflected from a scene surface without any temporal delay.

Autonomous Driving

Centimeter-Wave Free-Space Time-of-Flight Imaging

no code implementations25 May 2021 Seung-Hwan Baek, Noah Walsh, Ilya Chugunov, Zheng Shi, Felix Heide

In this work, we close this gap and propose a computational imaging method for all-optical free-space correlation before photo-conversion that achieves micron-scale depth resolution with robustness to surface reflectance and ambient light with conventional silicon intensity sensors.

Polarimetric Spatio-Temporal Light Transport Probing

no code implementations25 May 2021 Seung-Hwan Baek, Felix Heide

This allows us, for the first time, to decompose scene light transport into temporal, spatial, and complete polarimetric dimensions that unveil scene properties hidden to conventional methods.

Metamerism Scene Understanding

Neural Ray-Tracing: Learning Surfaces and Reflectance for Relighting and View Synthesis

1 code implementation28 Apr 2021 Julian Knodt, Joe Bartusek, Seung-Hwan Baek, Felix Heide

Recent neural rendering methods have demonstrated accurate view interpolation by predicting volumetric density and color with a neural network.

Neural Rendering

Polka Lines: Learning Structured Illumination and Reconstruction for Active Stereo

no code implementations CVPR 2021 Seung-Hwan Baek, Felix Heide

Active stereo cameras that recover depth from structured light captures have become a cornerstone sensor modality for 3D scene reconstruction and understanding tasks across application domains.

3D Scene Reconstruction

Multiview Image Completion With Space Structure Propagation

no code implementations CVPR 2016 Seung-Hwan Baek, Inchang Choi, Min H. Kim

Since a user specifies the region to be completed in one of multiview photographs casually taken in a scene, the proposed method enables us to complete the set of photographs with geometric consistency by creating or removing structures on the specified region.

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