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Semiconductor System Lab

FAMILY

Semiconductor System Lab

Through this homepage, we would like to share our sweats, pains,
excitements and experiences with you.

POST DOCTOR INFO

Junha Ryu

Ph.D. Student

CONTACT INFORMATION

Address

#1233, Dept. of Electrical Engineering and Computer Science (E3-2) KAIST, 373-1, Guseong-dong, Yuseong-gu, Daejeon, 305-701, Republic of Korea

Tel
+82-42-350-8068

Fax
+82-42-350-3410

E-mail
[email protected]

Research Interest

- Computer Vision System on Chip

- Hardware-friendly Computer Vision Algorithm

Education

2022. 3 ~   Ph.D. Student in EE, Korea Advanced Insititue of Science and Technology (KAIST)  

2022. 2      M.S. Student in EE, Korea Advanced Insititue of Science and Technology (KAIST)

2020. 2      B.S. in EE, Korea Advanced Insititue of Science and Technology (KAIST)

2015. 2      Changwon Science High School

BIOGRAPHY

- International Journal Papers


NeuGPU: An Energy-Efficient Neural Graphics Processing Unit for Instant Modeling and Real-Time Rendering on Mobile Devices 

Junha Ryu, Hankyul Kwon, Wonhoon Park, Zhiyong Li, Beomseok Kwon, Donghyeon Han, Dongseok Im, Sangyeob Kim, Hyungnam Joo, Minsung Kim and Hoi-Jun Yoo

IEEE Journal of Solid-State Circuits (JSSC), Sep. 2024


A 0.82 μW CIS-Based Action Recognition SoC with Self-Adjustable Frame Resolution for Always-on IoT Devices 

Junha Ryu, Gwangtae Park, Dongseok Im, Ji-Hoon Kim, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems II (TCAS-II), Mar. 2021


- International Conference Papers


NeuGPU: A Neural Graphics Processing Unit for Instant Modeling and Real-Time Rendering on Mobile AR/VR Devices 

Junha Ryu, Hankyul Kwon, Wonhoon Park, Zhiyong Li, Beomseok Kwon, Donghyeon Han, Dongseok Im, Sangyeob Kim, Hyungnam Joo, Minsung Kim and Hoi-Jun Yoo

IEEE Symposium on High Performance Chips (HOT Chips), May. 2024


A Low-Power Neural Graphics System for Instant 3D Modeling and Real-Time Rendering on Mobile AR/VR Devices

Junha Ryu, Hankyul Kwon, Wonhoon Park, Zhiyong Li, Beomseok Kwon, Donghyeon Han, Dongseok Im, Sangyeob Kim, Hyungnam Joo, Minsung Kim, and Hoi-Jun Yoo

IEEE Symposium on Low-Power and High-Speed Chips (COOL Chips), Apr. 2024


NeuGPU: A 18.5 mJ/Iter Neural-Graphics Processing Unit for Instant-Modeling and Real-Time Rendering with Segmented-Hashing Architecture

Junha Ryu, Hankyul Kwon, Wonhoon Park, Zhiyong Li, Beomseok Kwon, Donghyeon Han, Dongseok Im, Sangyeob Kim, Hyungnam Joo, and Hoi-Jun Yoo
IEEE International Conference on Solid-State Circuits (ISSCC), Feb. 2024


AI SoCs for AR/VR User-Interaction

Junha Ryu, Dongseok Im, and Hoi-Jun Yoo

IEEE International Electron Devices Meeting (IEDM), Dec. 2021


A 0.82 μW CIS-Based Action Recognition SoC with Self-Adjustable Frame Resolution for Always-on IoT Devices 

Junha Ryu, Gwangtae Park, Dongseok Im, Ji-Hoon Kim, and Hoi-Jun Yoo

IEEE International Symposium on Circuit and Systems (ISCAS), May. 2021

Gwangtae Park

Ph.D. Student

CONTACT INFORMATION

Address

#1233, Dept. of Electrical Engineering and Computer Science (E3-2) KAIST, 373-1, Guseong-dong, Yuseong-gu, Daejeon, 305-701, Republic of Korea

Tel
+82-42-350-8068

Fax
+82-42-350-3410

E-mail
[email protected]

Research Interest

- Deep learning SoC

- Computer vision

Education

2021. 3 ~   Ph.D. Student in EE, Korea Advanced Insititue of Science and Technology (KAIST) 

2021. 2      M.S. in EE, Korea Advanced Insititue of Science and Technology (KAIST)

2019. 2      B.S. in EE, Korea Advanced Insititue of Science and Technology (KAIST)

2015. 2      Daejeon Science High School

BIOGRAPHY

-- International Journal Papers  


An Artifical-Intelligence-based SLAM Processor with Scene-adaptive Sampling and Hybrid NeRF Model Training Acceleration

Gwangtae Park, Seokchan Song, Haoyang Sang, Dongseok Im, Donghyeon Han, Sangyeob Kim, Hongseok Lee, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems for Artificial Intelligence (TCASAI), July. 2024 


A 1.15 TOPS/W Energy-efficient Capsule Network Accelerator for Real-time 3D Point Cloud Segmentation in Mobile Environment

Gwangtae Park, Dongseok Im, Donghyeon Han, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems II (TCAS-II), Jun. 2020


- International Conference Papers 


Space-Mate: A 303.5mW Real-Time NeRF SLAM Processor with Sparse Mixture-of-Experts-based Acceleration

Gwangtae Park, Seokchan Song, Haoyang Sang, Dongseok Im, Donghyeon Han, Sangyeob Kim, Hongseok Lee, and Hoi-Jun Yoo

IEEE Symposium on High Performance Chips (HOT Chips), May. 2024


A Low-power and Real-time Neural-Rendering Dense SLAM Processor with 3-Level Hierarchical Sparsity Exploitation 

Gwangtae Park, Seokchan Song, Haoyang Sang, Dongseok Im, Donghyeon Han, Sangyeob Kim, Hongseok Lee and Hoi-Jun Yoo

IEEE Symposium on Low-Power and High-Speed Chips (COOL Chips), Apr. 2024


Space-Mate: A 303.5mW Real-Time Sparse Mixture-of-Experts-Based NeRF-SLAM Processor for Mobile Spatial Computing

Gwangtae Park, Seokchan Song, Haoyang Sang, Dongseok Im, Donghyeon Han, Sangyeob Kim, Hongseok Lee, and Hoi-Jun Yoo
IEEE International Conference on Solid-State Circuits (ISSCC), Feb. 2024

Sangjin Kim

Ph.D. Student

CONTACT INFORMATION

Address

#1233, Dept. of Electrical Engineering and Computer Science (E3-2) KAIST, 373-1, Guseong-dong, Yuseong-gu, Daejeon, 305-701, Republic of Korea

Tel
+82-42-350-8235

Fax
+82-42-350-3410

E-mail
[email protected]

Research Interest

- Multicore Processor Architecture 

- Deep Learning Processor

- Intelligent 3D Vision SoC

Education

2021. 3 ~   Ph.D. Student in EE, Korea Advanced Insititue of Science and Technology (KAIST) 

2021. 2      M.S. in EE, Korea Advanced Insititue of Science and Technology (KAIST)

2019. 2      B.S. in EE, Korea Advanced Insititue of Science and Technology (KAIST)

2014. 2      Gwangju  Science High School

BIOGRAPHY

- International Journal Papers  


LightRot: A Light-weighted Rotation Scheme and Architecture for Accurate Low-bit Large Language Model Inference
Sangjin Kim, Yuseon Choi, Jungjun Oh, Byeongcheol Kim, and Hoi-Jun Yoo
IEEE Journal on Emerging and Selected Topics in Circuits and Systems (JETCAS), 2025

Scaling-CIM: eDRAM In-Memory-Computing Accelerator With Dynamic-Scaling ADC and Adaptive Analog Operation
Sangjin Kim, Soyeon Um, Wooyoung Jo, Jingu Lee, Sangwoo Ha, Zhiyong Li, and Hoi-Jun Yoo
IEEE Journal of Solid-State Circuits (JSSC), Feb. 2024

An Overview of Computing-in-Memory Circuits With DRAM and NVM
Sangjin Kim, and Hoi-Jun Yoo
IEEE Transactions on Circuits and Systems II (TCAS-II), Nov. 2023

DynaPlasia: An eDRAM In-Memory Computing-Based Reconfigurable Spatial Accelerator With Triple-Mode Cell
Sangjin Kim, Zhiyong Li, Soyeon Um, Wooyoung Jo, Sangwoo Ha, Juhyoung Lee, Sangyeob Kim, Donghyeon Han, and Hoi-Jun Yoo
IEEE Journal of Solid-State Circuits (JSSC), Oct. 2023

A Low-Power Graph Convolutional Network Processor with Sparse Grouping for 3D Point Cloud Semantic Segmentation in Mobile Devices

Sangjin Kim, Sangyeob Kim, Juhyoung Lee, and Hoi-Jun Yoo

IEEE Transactions on Circuits and Systems I (TCAS-I), Jan. 2022


- International Conference Papers


EdgeDiff: 418.4mJ/inference Multi-modal Few-step Diffusion Model Accelerator with Mixed-Precision and Reordered Group-Quantization 

Sangjin Kim, Jungjun Oh, Jeonggyu So, Yuseon Choi, Sangyeob Kim, Dongseok Im, Gwangtae Park and Hoi-jun Yoo

IEEE International Conference on Solid-State Circuits (ISSCC), Feb. 2025


NoPIM: Functional Network-on-Chip Architecture for Scalable High-Density Processing-in-Memory-based Accelerator 

Sangjin Kim, Zhiyong Li, Soyeon Um, Wooyoung Jo, Sangwoo Ha, Sangyeob Kim and Hoi-Jun Yoo

IEEE Symposium on Low-Power and High-Speed Chips (COOL Chips), Apr. 2024


Scaling-CIM: An eDRAM-based In-Memory-Computing Accelerator with Dynamic-Scaling ADC for SQNR-Boosting and Layer-wise Adaptive Bit-Truncation

Sangjin Kim, Soyeon Um, Wooyoung Jo, Jingu Lee, Sangwoo Ha, Zhiyong Li and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (S. VLSI), Apr. 2023


DynaPlasia: An eDRAM In-Memory-Computing-Based Reconfigurable Spatial Accelerator with Triple-Mode Cell for Dynamic Resource Switching

Sangjin Kim, Zhiyong Li, Soyeon Um, Wooyoung Jo, Sangwoo Ha, Juhyoung Lee, Sangyeob Kim, and Hoi-Jun Yoo

IEEE International Conference on Solid-State Circuits (ISSCC), Feb. 2023


PNNPU: A Fast and Efficient 3D Point Cloud-based Neural Network Processor with Block-based Point Processing for Regular DRAM Access 

Sangjin Kim, Juhyoung Lee, Dongseok Im, and Hoi-jun Yoo

IEEE Symposium on High Performance Chips (HOT Chips), Aug. 2021


PNNPU: A 11.9 TOPS/W High-speed 3D Point Cloud-based Neural Network Processor with Block-based Point Processing for Regular DRAM Access 

Sangjin Kim, Juhyoung Lee, Dongseok Im, and Hoi-Jun Yoo

IEEE Symposium on VLSI Circuits (S. VLSI), Jun. 2021


A 54.7 fps 3D Point Cloud Semantic Segmentation Processor with Sparse Grouping Based Dilated Graph Convolutional Network for Mobile Devices

Sangjin Kim, Sangyeob Kim, Juhyoung Lee, and Hoi-jun Yoo 

IEEE International Symposium on Circuit and Systems (ISCAS), Oct. 2020

Address#1233, School of Electrical Engineering, KAIST, 291 Daehak-ro (373-1 Guseong-dong), Yuseong-gu, Daejeon 34141, Republic of Korea
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