← Search

Jun Won Choi

27 accepted papers

2026

Mining Instance-Centric Vision-Language Contexts for Human-Object Interaction Detection

CVPR 2026

Human-Object Interaction (HOI) detection aims to localize human-object pairs and classify their interactions from a single image, a task that demands strong visual understanding and nuanced contextual reasoning. Recent approaches have leveraged Vision-Language Models (VLMs) to introduce semantic pri

Cited by 0SourcecodeScholar
2026

STONE Dataset: A Scalable Multi-Modal Surround-View 3D Traversability Dataset for Off-Road Robot Navigation

ICRA 2026poster

Reliable off-road navigation requires accurate estimation of traversable regions and robust perception under diverse terrain and sensing conditions. However, existing datasets lack both scalability and multi-modality, which limits progress in 3D traversability prediction. In this work, we introduce …

2026

SafeDrive: Fine-Grained Safety Reasoning for End-to-End Driving in a Sparse World

CVPR 2026

The end-to-end (E2E) paradigm, which maps sensor inputs directly to driving decisions, has recently attracted significant attention due to its unified modeling capability and scalability. However, ensuring safety in this unified framework remains one of the most critical challenges. In this work, we

Cited by 4SourceScholar
2025

JoVALE: Detecting Human Actions in Video Using Audiovisual and Language Contexts

AAAI 2025technical

Video Action Detection (VAD) entails localizing and categorizing action instances within videos, which inherently consist of diverse information sources such as audio, visual cues, and surrounding scene contexts. Leveraging this multi-modal information effectively for VAD poses a significant challen…

2025

Layer-Wise Modality Decomposition for Interpretable Multimodal Sensor Fusion

NeurIPS 2025poster

In autonomous driving, transparency in the decision-making of perception models is critical, as even a single misperception can be catastrophic. Yet with multi-sensor inputs, it is difficult to determine how each modality contributes to a prediction because sensor information becomes entangled withi…

Cited by 0SourcecodeScholar
2025

MAESTRO: Task-Relevant Optimization via Adaptive Feature Enhancement and Suppression for Multi-task 3D Perception

ICCV 2025poster

The goal of multi-task learning is to learn to conduct multiple tasks simultaneously based on a shared data representation. While this approach can improve learning efficiency, it may also cause performance degradation due to task conflicts that arise when optimizing the model for different objectiv…

Cited by 0SourcePDFScholar
2025

ProtoOcc: Accurate, Efficient 3D Occupancy Prediction Using Dual Branch Encoder-Prototype Query Decoder

AAAI 2025technical

In this paper, we introduce ProtoOcc, a novel 3D occupancy prediction model designed to predict the occupancy states and semantic classes of 3D voxels via a deep semantic understanding of scenes. ProtoOcc consists of two main components: the Dual Branch Encoder (DBE) and the Prototype Query Decoder…

2025

RCTDistill: Cross-Modal Knowledge Distillation Framework for Radar-Camera 3D Object Detection with Temporal Fusion

ICCV 2025poster

Radar-camera fusion methods have emerged as a cost-effective approach for 3D object detection but still lag behind LiDAR-based methods in performance. Recent works have focused on employing temporal fusion and Knowledge Distillation (KD) strategies to overcome these limitations. However, existing ap…

Cited by 0SourcePDFScholar
2025

Resilient Sensor Fusion Under Adverse Sensor Failures via Multi-Modal Expert Fusion

CVPR 2025poster

Modern autonomous driving perception systems utilize complementary multi-modal sensors, such as LiDAR and cameras. Although sensor fusion architectures enhance performance in challenging environments, they still suffer significant performance drops under severe sensor failures, such as LiDAR beam re…

Cited by 0SourcePDFScholar
2024

CRT-Fusion: Camera, Radar, Temporal Fusion Using Motion Information for 3D Object Detection

NeurIPS 2024poster

Accurate and robust 3D object detection is a critical component in autonomous vehicles and robotics. While recent radar-camera fusion methods have made significant progress by fusing information in the bird's-eye view (BEV) representation, they often struggle to effectively capture the motion of dyn…

2024

Fine-Grained Pillar Feature Encoding Via Spatio-Temporal Virtual Grid for 3D Object Detection

ICRA 2024poster

Developing high-performance, real-time architectures for LiDAR-based 3D object detectors is essential for the successful commercialization of autonomous vehicles. Pillar-based methods stand out as a practical choice for onboard deployment due to their computational efficiency. However, despite their…

Cited by 4SourcecodeScholar
2024

Mask2Map: Vectorized HD Map Construction Using Bird's Eye View Segmentation Masks

ECCV 2024oral

"In this paper, we introduce Mask2Map, a novel end-to-end online HD map construction method designed for autonomous driving applications. Our approach focuses on predicting the class and ordered point set of map instances within a scene, represented in the bird’s eye view (BEV). Mask2Map consists of…

2024

PillarGen: Enhancing Radar Point Cloud Density and Quality via Pillar-based Point Generation Network

ICRA 2024poster

In this paper, we present a novel point generation model, referred to as Pillar-based Point Generation Network (PillarGen), which facilitates the transformation of point clouds from one domain into another. PillarGen can produce synthetic point clouds with enhanced density and quality based on the p…

Cited by 0SourceScholar
2024

RCM-Fusion: Radar-Camera Multi-Level Fusion for 3D Object Detection

ICRA 2024poster

While LiDAR sensors have been successfully applied to 3D object detection, the affordability of radar and camera sensors has led to a growing interest in fusing radars and cameras for 3D object detection. However, previous radar-camera fusion models could not fully utilize the potential of radar inf…

Cited by 20SourcecodeScholar
2024

RadarDistill: Boosting Radar-based Object Detection Performance via Knowledge Distillation from LiDAR Features

CVPR 2024poster

The inherent noisy and sparse characteristics of radar data pose challenges in finding effective representations for 3D object detection. In this paper we propose RadarDistill a novel knowledge distillation (KD) method which can improve the representation of radar data by leveraging LiDAR data. Rada…

2023

CRAFT: Camera-Radar 3D Object Detection with Spatio-Contextual Fusion Transformer

AAAI 2023technical

Camera and radar sensors have significant advantages in cost, reliability, and maintenance compared to LiDAR. Existing fusion methods often fuse the outputs of single modalities at the result-level, called the late fusion strategy. This can benefit from using off-the-shelf single sensor detection al…

Cited by 95SourcePDFScholar
2023

CRN: Camera Radar Net for Accurate, Robust, Efficient 3D Perception

ICCV 2023poster

Autonomous driving requires an accurate and fast 3D perception system that includes 3D object detection, tracking, and segmentation. Although recent low-cost camera-based approaches have shown promising results, they are susceptible to poor illumination or bad weather conditions and have a large loc…

Cited by 96PDFcodeScholar
2023

D-Align: Dual Query Co-attention Network for 3D Object Detection Based on Multi-frame Point Cloud Sequence

ICRA 2023poster

LiDAR sensors are widely used for 3D object detection in various mobile robotics applications. LiDAR sensors continuously generate point cloud data in real-time. Conventional 3D object detectors detect objects using a set of points acquired over a fixed duration. However, recent studies have shown t…

Cited by 14SourcecodeScholar
2023

Diverse Multiple Trajectory Prediction Using a Two-Stage Prediction Network Trained With Lane Loss

RA-L 2023

Prior studies in the field of motion predictions for autonomous driving tend to focus on finding a trajectory that is close to the ground truth trajectory, which is highly biased toward straight maneuvers. Such problem formulations and imbalanced distribution of datasets, however, frequently lead to

Cited by 29SourceScholar
2023

MGTANet: Encoding Sequential LiDAR Points Using Long Short-Term Motion-Guided Temporal Attention for 3D Object Detection

AAAI 2023technical

Most scanning LiDAR sensors generate a sequence of point clouds in real-time. While conventional 3D object detectors use a set of unordered LiDAR points acquired over a fixed time interval, recent studies have revealed that substantial performance improvement can be achieved by exploiting the spatio…

2023

R-Pred: Two-Stage Motion Prediction Via Tube-Query Attention-Based Trajectory Refinement

ICCV 2023poster

Predicting the future motion of dynamic agents is of paramount importance to ensuring safety and assessing risks in motion planning for autonomous robots. In this study, we propose a two-stage motion prediction method, called R-Pred, designed to effectively utilize both scene and interaction context…

Cited by 21PDFScholar
2023

SiT Dataset: Socially Interactive Pedestrian Trajectory Dataset for Social Navigation Robots

NeurIPS 2023poster

To ensure secure and dependable mobility in environments shared by humans and robots, social navigation robots should possess the capability to accurately perceive and predict the trajectories of nearby pedestrians. In this paper, we present a novel dataset of pedestrian trajectories, referred to as…

2022

Joint 3D Object Detection and Tracking Using Spatio-Temporal Representation of Camera Image and LiDAR Point Clouds

AAAI 2022technical

In this paper, we propose a new joint object detection and tracking (JoDT) framework for 3D object detection and tracking based on camera and LiDAR sensors. The proposed method, referred to as 3D DetecTrack, enables the detector and tracker to cooperate to generate a spatio-temporal representation o…

Cited by 23SourcePDFScholar
2021

Joint Representation of Temporal Image Sequences and Object Motion for Video Object Detection

ICRA 2021poster

In this paper, we propose a new video object detection (VoD) method, referred to as temporal feature aggregation and motion-aware VoD (TM-VoD), that produces a joint representation of temporal image sequences and object motion. The TM-VoD generates strong spatiotemporal features for VOD by temporall…

Cited by 5SourcecodeScholar
2021

LaPred: Lane-Aware Prediction of Multi-Modal Future Trajectories of Dynamic Agents

CVPR 2021poster

In this paper, we address the problem of predicting the future motion of a dynamic agent (called a target agent) given its current and past states as well as the information on its environment. It is paramount to develop a prediction model that can exploit the contextual information in both static a…

Cited by 148PDFcodeScholar
2020

3D-CVF: Generating Joint Camera and LiDAR Features Using Cross-View Spatial Feature Fusion for 3D Object Detection

ECCV 2020poster

In this paper, we propose a new deep architecture for fusing camera and LiDAR sensors for 3D object detection. Because the camera and LiDAR sensor signals have different characteristics and distributions, fusing these two modalities is expected to improve both the accuracy and robustness of 3D objec…

Cited by 573SourcePDFScholar
2020

GRIF Net: Gated Region of Interest Fusion Network for Robust 3D Object Detection from Radar Point Cloud and Monocular Image

IROS 2020poster

Robust and accurate scene representation is essential for advanced driver assistance systems (ADAS) such as automated driving. The radar and camera are two widely used sensors for commercial vehicles due to their low-cost, high-reliability, and low-maintenance. Despite their strengths, radar and cam…

Cited by 63SourceScholar