Sanghyun Byun

Visual Representations @ LG

About Me

I am an AI Researcher at LG Electronics Silicon Valley Emerging Technology Lab, CTO Office.

I obtained my M.S. in Computer Science - AI at University of Southern California (USC) and my B.S. in Computer Science and Engineering at University of California - Irvine (UCI). At UCI, I worked closely with Prof. Aditi Majumder on medical AI.

My research interests include Perception, Visual Representation, and AI Efficiency. Currently, I’m investigating the following topics:

  • Data Representation for Dynamic Scene Understanding
  • Unified Representations for Perception with Reasoning
  • Robot Task Planning with Temporal Grounding in Hybrid Environments

Publications

Single-pass Adaptive Image Tokenization for Minimum Program Search
Shivam Duggal, Sanghyun Byun, William T. Freeman, Antonio Torralba, Phillip Isola
NeurIPS 2025 July 2025

Unifying Vision-Language Latents for Zero-label Image Caption Enhancement
Sanghyun Byun*, Jung Ick Guack*, Mohanad Odema, Baisub Lee, Jacob Song, Woo Seong Chung
PMLR 2025, NeurIPS 2025 UniReps Workshop October 2025

3-Model Speculative Decoding
Sanghyun Byun, Mohanad Odema, Jung Ick Guack, Baisub Lee, Jacob Song, Woo Seong Chung
NeurIPS 2025 SPIGM Workshop October 2025

APCE: Adaptive Progressive Context Expansion for Long Context Processing
Baisub Lee, Sanghyun Byun, Mohanad Odema, Jung Ick Guack, Jacob Song, Woo Seong Chung
NeurIPS 2025 MLforSys Workshop October 2025

CARVQ: Corrective Adaptor with Group Residual Vector Quantization for LLM Embedding Compression
Dayin Gou*, Sanghyun Byun*, Nilesh Malpeddi, Gabrielle De Micheli, Prathamesh Vaste, Jacob Song, Woo Seong Chung
EMNLP Findings 2025 October 2025

OneNet: A Channel-Wise 1D Convolutional U-Net
Sanghyun Byun, Kayvan Shah, Ayushi Gang, Christopher Apton, Jacob Song, Woo Seong Chung
IEEE IPTA 2025 November 2024

MultiDepth: Multi-Sample Priors for Refining Monocular Metric Depth Estimations in Indoor Scenes
Sanghyun Byun, Jacob Song, Woo Seong Chung
arXiv:2411.01048 November 2024

Automated Landmark Detection for AR Based Craniofacial Surgical Assistance System
Sanghyun Byun, Muhammad Twaha Ibrahim, M. Gopi, Aditi Majumder, Lohrasb R. Sayadi, Usama S. Hamdan, Raj M. Vyas
AIVR 2023 March 2024

Patent Applications

Unified Methods and Systems for Automation of Customized Retail Experience (Patent Pending)
Woo Seong Chung, Jacob Song, Sanghyun Byun
U.S. Patent Application No. 63/814905 Filed 2025

Multi-Expert Hybrid AI Agent for On-Demand Customer Service (Patent Pending)
Woo Seong Chung, Hyun Chul Lee, Jacob Song, Sanghyun Byun
U.S. Patent Application No. 63/730945 Filed 2025

Corrective Adaptor with Group Residual Vector Quantization for LLM Embedding Compression (Patent Pending)
Woo Seong Chung, Sanghyun Byun, Nilesh Malpeddi, Jimmy Gou, Gabrielle De Micheli, Prathamesh Vaste, Jacob Song, and Bahattin Yildiz
U.S. Patent Application No. 63/806992 Filed 2025

Efficient Large Language Models with Low-Rank Tensor Decomposition and Transformer Block Pruning (Patent Pending)
Woo Seong Chung, Sanghyun Byun, Nilesh Malpeddi, Jimmy Gou, Gabrielle De Micheli, Prathamesh Vaste, Jacob Song, and Bahattin Yildiz
U.S. Patent Application No. 63/730939 Filed 2025

Privacy-Centric Universal Multi-Modal AI Home Agent (Patent Pending)
Woo Seong Chung, Sanghyun Byun, Nilesh Malpeddi, Jimmy Gou, Gabrielle De Micheli, Prathamesh Vaste, Jacob Song, and Bahattin Yildiz
U.S. Patent Application No. 63/735911 Filed 2025

AI based Auto Dubbed Lip Synchronizations Generation (Patent Pending)
Woo Seong Chung, Jacob Song, Chul Lee, Sanghyun Byun
U.S. Patent Application No. 63/711,659 Filed October 2024

AI based Reconstruction of Indoor Scenes from Single Image (Patent Pending)
Woo Seong Chung, Jacob Song, Chul Lee, Sanghyun Byun
U.S. Patent Application No. 63/711,663 Filed October 2024

Education

University of Southern California (USC) Aug 2023 - May 2025
M.S. Computer Science - AI

University of California - Irvine (UCI) Aug 2019 - June 2023
B.S. Computer Science and Engineering

Vitae

  • AI @ LG USA May 2025 - Present
    AI Researcher
    Perception, Edge AI, Robot AI
  • USC Aug 2023 - May 2025
    M.S. Computer Science - AI
  • Foodpool Inc Nov 2021 - Jul 2022
    Co-founder / Technical CFO
    Web app for college food delivery
  • OptumRx Jul 2021 - Aug 2022
    SDE Intern
    Internal tools - Benchmark and UAP
  • UC Irvine Sep 2019 - Jun 2023
    B.S. Computer Science & Engineering

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