Publications
Peer-reviewed research papers and preprints.
2025

Diversity, Plausibility, and Difficulty: Dynamic Data-Free Quantization
Cheeun Hong*, Sungyong Baik*, Junghun Oh, Kyoung Mu Lee
The first dynamic data-free quantization: synthesizes plausibly difficult images with soft labels so a network learns to adapt its bit-width to each input.
2024

Overcoming Distribution Mismatch in Quantizing Image Super-Resolution Networks
Cheeun Hong, Kyoung Mu Lee
Quantization-aware training that reduces feature distribution mismatch in SR networks through gradient-aligned regularization, without test-time dynamic adaptation.

AdaBM: On-the-Fly Adaptive Bit Mapping for Image Super-Resolution
Cheeun Hong, Kyoung Mu Lee
On-the-fly adaptive bit allocation for SR, calibrated with only a few images, cutting quantization processing time from hours to seconds (×2400 faster).
2023

CoLaNet: Adaptive Context and Latent Information Blending for Face Image Inpainting
Joonkyu Park, Cheeun Hong, Sungyong Baik, Kyoung Mu Lee
Face inpainting that adaptively blends context from the visible image with learned latent priors, guided by attention between missing and visible regions.
2022

CADyQ: Content-Aware Dynamic Quantization for Image Super-Resolution
Cheeun Hong, Sungyong Baik, Heewon Kim, Seungjun Nah, Kyoung Mu Lee
Allocates bit-widths per image patch and per layer based on local content, enabling SR quantization below 8 bits with little accuracy loss.

Attentive Fine-Grained Structured Sparsity for Image Restoration
Junghun Oh, Heewon Kim, Seungjun Nah, Cheeun Hong, Jonghyun Choi, Kyoung Mu Lee
Learns a layer-wise pruning ratio for N:M structured sparsity, improving the efficiency–accuracy trade-off for super-resolution and deblurring.

DAQ: Channel-Wise Distribution-Aware Quantization for Deep Image Super-Resolution Networks
Cheeun Hong*, Heewon Kim*, Sungyong Baik, Junghun Oh, Kyoung Mu Lee
Channel-wise, distribution-aware quantization that brings SR networks to ultra-low precision without a significant drop in restoration quality.

Batch Normalization Tells You Which Filter is Important
Junghun Oh, Heewon Kim, Sungyong Baik, Cheeun Hong, Kyoung Mu Lee
Data-free filter pruning that scores each filter's importance from the batch-normalization parameters of a pre-trained CNN.
