Search Results for author: Guojun Lu

Found 11 papers, 1 papers with code

Anti-aliasing Deep Image Classifiers using Novel Depth Adaptive Blurring and Activation Function

no code implementations3 Oct 2021 Md Tahmid Hossain, Shyh Wei Teng, Ferdous Sohel, Guojun Lu

In this work, first, we analyse deep features with Fourier transform and show that Depth Adaptive Blurring is more effective, as opposed to monotonic blurring.

Translation

A novel network training approach for open set image recognition

no code implementations27 Sep 2021 Md Tahmid Hossaina, Shyh Wei Teng, Guojun Lu, Ferdous Sohel

Convolutional Neural Networks (CNNs) are commonly designed for closed set arrangements, where test instances only belong to some "Known Known" (KK) classes used in training.

Data Augmentation Open Set Learning

Integrated Generalized Zero-Shot Learning for Fine-Grained Classification

no code implementations31 Dec 2020 Tasfia Shermin, Shyh Wei Teng, Ferdous Sohel, Manzur Murshed, Guojun Lu

In this paper, we propose to explore global and direct attribute-supervised local visual features for both EL and FS categories in an integrated manner for fine-grained GZSL.

Attribute Classification +1

Bidirectional Mapping Coupled GAN for Generalized Zero-Shot Learning

no code implementations30 Dec 2020 Tasfia Shermin, Shyh Wei Teng, Ferdous Sohel, Manzur Murshed, Guojun Lu

Bidirectional mapping-based generalized zero-shot learning (GZSL) methods rely on the quality of synthesized features to recognize seen and unseen data.

Generalized Zero-Shot Learning Generative Adversarial Network

Adversarial Network with Multiple Classifiers for Open Set Domain Adaptation

no code implementations1 Jul 2020 Tasfia Shermin, Guojun Lu, Shyh Wei Teng, Manzur Murshed, Ferdous Sohel

The proposed multi-classifier structure introduces a weighting module that evaluates distinctive domain characteristics for assigning the target samples with weights which are more representative to whether they are likely to belong to the known and unknown classes to encourage positive transfers during adversarial training and simultaneously reduces the domain gap between the shared classes of the source and target domains.

Domain Adaptation

Enhanced Transfer Learning with ImageNet Trained Classification Layer

no code implementations25 Mar 2019 Tasfia Shermin, Shyh Wei Teng, Manzur Murshed, Guojun Lu, Ferdous Sohel, Manoranjan Paul

Thus, we hypothesize that the presence of this layer is crucial for growing network depth to adapt better to a new task.

Classification Domain Adaptation +2

Transfer Learning Using Classification Layer Features of CNN

no code implementations19 Nov 2018 Tasfia Shermin, Manzur Murshed, Guojun Lu, Shyh Wei Teng

Although CNNs have gained the ability to transfer learned knowledge from source task to target task by virtue of large annotated datasets but consume huge processing time to fine-tune without GPU.

Classification General Classification +1

Distortion Robust Image Classification using Deep Convolutional Neural Network with Discrete Cosine Transform

no code implementations14 Nov 2018 Md Tahmid Hossain, Shyh Wei Teng, Dengsheng Zhang, Suryani Lim, Guojun Lu

Experimental results demonstrate that once trained, DCT-Net not only generalizes well to a variety of unseen image distortions but also outperforms other methods in the literature.

General Classification Image Classification

An Attention-Based Approach for Single Image Super Resolution

no code implementations18 Jul 2018 Yuan Liu, Yuancheng Wang, Nan Li, Xu Cheng, Yifeng Zhang, Yongming Huang, Guojun Lu

We propose an attention-based approach to give a discrimination between texture areas and smooth areas.

Image Super-Resolution

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