Search Results for author: Hyeyeon Choi

Found 8 papers, 3 papers with code

Resolution-Aware Design of Atrous Rates for Semantic Segmentation Networks

no code implementations26 Jul 2023 Bum Jun Kim, Hyeyeon Choi, Hyeonah Jang, Sang Woo Kim

However, fixed values of atrous rates are used for the ASPP module, which restricts the size of its field of view.

 Ranked #1 on Retinal Vessel Segmentation on HRF (mIoU metric)

Retinal Vessel Segmentation Segmentation +1

Understanding Gaussian Attention Bias of Vision Transformers Using Effective Receptive Fields

1 code implementation8 May 2023 Bum Jun Kim, Hyeyeon Choi, Hyeonah Jang, Sang Woo Kim

Based on this observation, we propose explicitly adding a Gaussian attention bias that guides the positional embedding to have the corresponding pattern from the beginning of training.

Image Classification object-detection +2

On the Ideal Number of Groups for Isometric Gradient Propagation

no code implementations7 Feb 2023 Bum Jun Kim, Hyeyeon Choi, Hyeonah Jang, Sang Woo Kim

First, we find that the number of groups influences the gradient behavior of the group normalization layer.

Image Classification Object Detection +1

Improved Robustness of Vision Transformer via PreLayerNorm in Patch Embedding

no code implementations16 Nov 2021 Bum Jun Kim, Hyeyeon Choi, Hyeonah Jang, Dong Gu Lee, Wonseok Jeong, Sang Woo Kim

We compared the robustness of CNN and ViT by assuming various image corruptions that may appear in practical vision tasks.

Fine-Grained Image Classification

Extending Class Activation Mapping Using Gaussian Receptive Field

no code implementations15 Jan 2020 Bum Jun Kim, Gyogwon Koo, Hyeyeon Choi, Sang Woo Kim

First, we propose Gaussian upsampling, an improved upsampling method that can reflect the characteristics of deep learning models.

Image Classification Interpretable Machine Learning +2

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