activity
20212026
most cited3Doodle: Compact Abstraction of Objects with 3D Strokes

10 citations · 13 across the 12 of their papers we have counts for

collaborators

15 papers

cs.CV2026

Scene Retargeting: Learning Object Placement with Analogical Transfer

Minkwan Kim, Junho Kim, Seungmin Lee +2

Interactive simulations of embodied AI or spatial computing applications build on realistic 3D scenes that support daily activities. However, sparse, irregular layout structures im…

cs.CV2026

Image-Guided Geometric Stylization of 3D Meshes

Changwoon Choi, Hyunsoo Lee, Clément Jambon +2

Recent generative models can create visually plausible 3D representations of objects. However, the generation process often allows for implicit control signals, such as contextual…

cs.CV2025

Geometry-Aware Scene Configurations for Novel View Synthesis

Minkwan Kim, Changwoon Choi, Young Min Kim

We propose scene-adaptive strategies to efficiently allocate representation capacity for generating immersive experiences of indoor environments from incomplete observations. Indoo…

cs.CV2025

Recovering Dynamic 3D Sketches from Videos

Jaeah Lee, Changwoon Choi, Young Min Kim +1

Understanding 3D motion from videos presents inherent challenges due to the diverse types of movement, ranging from rigid and deformable objects to articulated structures. To overc…

cs.CV2024

Humans as a Calibration Pattern: Dynamic 3D Scene Reconstruction from Unsynchronized and Uncalibrated Videos

Changwoon Choi, Jeongjun Kim, Geonho Cha +3

Recent works on dynamic 3D neural field reconstruction assume the input from synchronized multi-view videos whose poses are known. The input constraints are often not satisfied in…

cs.CV2024

ExCellGen: Fast, Controllable, Photorealistic 3D Scene Generation from a Single Real-World Exemplar

Clément Jambon, Changwoon Choi, Dongsu Zhang +2

Photorealistic 3D scene generation is challenging due to the scarcity of large-scale, high-quality real-world 3D datasets and complex workflows requiring specialized expertise for…

cs.CV2024

I-SLAM: Inverting Imaging Process for Robust Photorealistic Dense SLAM

Gwangtak Bae, Changwoon Choi, Hyeongjun Heo +2

We present an inverse image-formation module that can enhance the robustness of existing visual SLAM pipelines for casually captured scenarios. Casual video captures often suffer f…

cs.CV2024★ 10 cited

3Doodle: Compact Abstraction of Objects with 3D Strokes

Changwoon Choi, Jaeah Lee, Jaesik Park +1

While free-hand sketching has long served as an efficient representation to convey characteristics of an object, they are often subjective, deviating significantly from realistic r…

cs.CV2023

LDL: Line Distance Functions for Panoramic Localization

Junho Kim, Changwoon Choi, Hojun Jang +1

We introduce LDL, a fast and robust algorithm that localizes a panorama to a 3D map using line segments. LDL focuses on the sparse structural information of lines in the scene, whi…

cs.CV2023

Balanced Spherical Grid for Egocentric View Synthesis

Changwoon Choi, Sang Min Kim, Young Min Kim

We present EgoNeRF, a practical solution to reconstruct large-scale real-world environments for VR assets. Given a few seconds of casually captured 360 video, EgoNeRF can efficient…

cs.CV2022

IBL-NeRF: Image-Based Lighting Formulation of Neural Radiance Fields

Changwoon Choi, Juhyeon Kim, Young Min Kim

We propose IBL-NeRF, which decomposes the neural radiance fields (NeRF) of large-scale indoor scenes into intrinsic components. Recent approaches further decompose the baked radian…

cs.CV2022

CPO: Change Robust Panorama to Point Cloud Localization

Junho Kim, Hojun Jang, Changwoon Choi +1

We present CPO, a fast and robust algorithm that localizes a 2D panorama with respect to a 3D point cloud of a scene possibly containing changes. To robustly handle scene changes,…

cs.CV2022★ 2 cited

Probabilistic Implicit Scene Completion

Dongsu Zhang, Changwoon Choi, Inbum Park +1

We propose a probabilistic shape completion method extended to the continuous geometry of large-scale 3D scenes. Real-world scans of 3D scenes suffer from a considerable amount of…

cs.CV2021

PICCOLO: Point Cloud-Centric Omnidirectional Localization

Junho Kim, Changwoon Choi, Hojun Jang +1

We present PICCOLO, a simple and efficient algorithm for omnidirectional localization. Given a colored point cloud and a 360 panorama image of a scene, our objective is to recover…

cs.CV2021★ 1 cited

Learning to Generate 3D Shapes with Generative Cellular Automata

Dongsu Zhang, Changwoon Choi, Jeonghwan Kim +1

We present a probabilistic 3D generative model, named Generative Cellular Automata, which is able to produce diverse and high quality shapes. We formulate the shape generation proc…