Jay Sun(孫揚喆)

Yang-Che (Jay) Sun

Medicine & Computer Science @ NYCU

I work on computer vision and machine learning, with experience in image representations, video segmentation, recommendation systems, and on-device models.

Education

Research & Publications

Scal3R: Learning Efficient Multi-Relative Pose Query for Scalable Online 3D Reconstruction

ECCV 2026

Chin-Yang Lin, Yang-Che Sun, Cheng Sun, Fu-En Yang, Min-Hung Chen, Yen-Yu Lin, Wei-Chen Chiu, Yu-Lun Liu

Scalable online 3D reconstruction with lightweight relative-pose queries on a frozen backbone. Combines multiple reference keyframes, pose-graph optimization, and loop closure to reduce drift over long video sequences.

FIPER: Factorized Features for Robust Image Super-Resolution and Compression

NeurIPS 2025 · Main Conference

Yang-Che Sun, Cheng Yu Yeo, Ernie Chu, Jun-Cheng Chen, Yu-Lun Liu

A learnable basis–coefficient representation with multi-level frequency decomposition to reconstruct fine image details. Achieved state-of-the-art performance on image super-resolution and compression.

National Science and Technology Council (NSTC) Research Project

3AM: 3egment Anything with Geometric Consistency in Videos

arXiv 2026

Yang-Che Sun, Cheng Sun, Chin-Yang Lin, Fu-En Yang, Min-Hung Chen, Yen-Yu Lin, Yu-Lun Liu

Integrates 3D-aware features and geometry-aware sampling to track objects consistently across large viewpoint changes in videos, using only RGB input at inference.

A Market-Aware Real-Time Bidding Strategy Using Censored Data With Reinforcement Learning in Online Advertising

IEEE Big Data 2025

Chia Yu Huang, Hsu-Chao Lai, Yang-Che Sun, Wen-Yueh Shih, Jiun-Long Huang

A two-agent reinforcement learning strategy that learns from both winning and censored losing bids. Models market competition to improve auction win rates while reducing overbidding.

Experience

Projects

Helmet Detection App

Second place

Maichu Hackathon 2023

An on-device app that detects whether construction workers wear helmets correctly and notifies management. Fine-tuned YOLOv5 and deployed to Android with CI/CD.

Lease Notary

ETHTaipei 2025

Moved paper-based rental agreements onto the blockchain as lease contracts.

ETHPaymaster

ETHTaipei 2024

A decentralized paymaster built with account abstraction, giving users control over transaction sponsorship.

Autopass

ETHTaipei 2023

A cryptocurrency fare-payment option for drivers, designed with vehicle owners’ security in mind.