Search Results for author: Yonghyun Kim

Found 11 papers, 3 papers with code

A Study on the Efficient Product Search Service for the Damaged Image Information

no code implementations14 Nov 2021 Yonghyun Kim

With the development of Information and Communication Technologies and the dissemination of smartphones, especially now that image search is possible through the internet, e-commerce markets are more activating purchasing services for a wide variety of products.

Image Inpainting Image Restoration +1

Multi-level Distance Regularization for Deep Metric Learning

1 code implementation8 Feb 2021 Yonghyun Kim, Wonpyo Park

These allow the parameters of the embedding network to be settle on a local optima with better generalization.

Metric Learning Retrieval

Suppressing Spoof-irrelevant Factors for Domain-agnostic Face Anti-spoofing

no code implementations2 Dec 2020 Taewook Kim, Yonghyun Kim

In the second adversarial learning scheme, each of the discrimination heads is also adversarially trained to suppress a spoof factor, and the group of the secondary spoof classifier and the encoder aims to intensify the spoof factor by overcoming the suppression.

Face Anti-Spoofing Face Recognition

GroupFace: Learning Latent Groups and Constructing Group-based Representations for Face Recognition

3 code implementations CVPR 2020 Yonghyun Kim, Wonpyo Park, Myung-Cheol Roh, Jongju Shin

In the field of face recognition, a model learns to distinguish millions of face images with fewer dimensional embedding features, and such vast information may not be properly encoded in the conventional model with a single branch.

Face Identification Face Recognition +1

Detector With Focus: Normalizing Gradient In Image Pyramid

no code implementations5 Sep 2019 Yonghyun Kim, Bong-Nam Kang, Daijin Kim

An image pyramid can extend many object detection algorithms to solve detection on multiple scales.

object-detection Object Detection +2

Attentional Feature-Pair Relation Networks for Accurate Face Recognition

no code implementations ICCV 2019 Bong-Nam Kang, Yonghyun Kim, Bongjin Jun, Daijin Kim

In this paper, we propose a novel face recognition method, called Attentional Feature-pair Relation Network (AFRN), which represents the face by the relevant pairs of local appearance block features with their attention scores.

Face Identification Face Recognition +4

Pairwise Relational Networks using Local Appearance Features for Face Recognition

no code implementations15 Nov 2018 Bong-Nam Kang, Yonghyun Kim, Daijin Kim

We propose a new face recognition method, called a pairwise relational network (PRN), which takes local appearance features around landmark points on the feature map, and captures unique pairwise relations with the same identity and discriminative pairwise relations between different identities.

Face Identification Face Recognition +1

BAN: Focusing on Boundary Context for Object Detection

no code implementations13 Nov 2018 Yonghyun Kim, Taewook Kim, Bong-Nam Kang, Jieun Kim, Daijin Kim

To verify our method, we visualize the activation of the sub-networks according to the boundary contexts and empirically show that the sub-networks contribute more to the related sub-problem in detection.

Object object-detection +1

Pairwise Relational Networks for Face Recognition

no code implementations ECCV 2018 Bong-Nam Kang, Yonghyun Kim, Daijin Kim

Because the existence and meaning of pairwise relations should be identity dependent, we add a face identity state feature, which obtains from the long short-term memory (LSTM) units network with the sequential local appearance patches on the feature maps, to the PRN.

Face Identification Face Recognition +1

SAN: Learning Relationship between Convolutional Features for Multi-Scale Object Detection

no code implementations ECCV 2018 Yonghyun Kim, Bong-Nam Kang, Daijin Kim

However, due to the lack of scale normalization in CNN-based detection methods, the activated channels in the feature space can be completely different according to a scale and this difference makes it hard for the classifier to learn samples.

object-detection Object Detection

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