Search Results for author: Yichen Wu

Found 16 papers, 6 papers with code

ReFusion: Learning Image Fusion from Reconstruction with Learnable Loss via Meta-Learning

no code implementations13 Dec 2023 Haowen Bai, Zixiang Zhao, Jiangshe Zhang, Yichen Wu, Lilun Deng, Yukun Cui, Shuang Xu, Baisong Jiang

To ensure the fusion module maximally preserves the information from the source images, enabling the reconstruction of the source images from the fused image, we adopt a meta-learning strategy to train the loss proposal module using reconstruction loss.

Meta-Learning Multi-Exposure Image Fusion

CBA: Improving Online Continual Learning via Continual Bias Adaptor

1 code implementation ICCV 2023 Quanziang Wang, Renzhen Wang, Yichen Wu, Xixi Jia, Deyu Meng

Online continual learning (CL) aims to learn new knowledge and consolidate previously learned knowledge from non-stationary data streams.

Continual Learning

Virtual impactor-based label-free bio-aerosol detection using holography and deep learning

no code implementations30 Aug 2022 Yi Luo, Yijie Zhang, Tairan Liu, Alan Yu, Yichen Wu, Aydogan Ozcan

To address this need, we present a mobile and cost-effective label-free bio-aerosol sensor that takes holographic images of flowing particulate matter concentrated by a virtual impactor, which selectively slows down and guides particles larger than ~6 microns to fly through an imaging window.

Imbalanced Semi-supervised Learning with Bias Adaptive Classifier

1 code implementation28 Jul 2022 Renzhen Wang, Xixi Jia, Quanziang Wang, Yichen Wu, Deyu Meng

The core idea is to automatically assimilate the training bias caused by class imbalance via the bias adaptive classifier, which is composed of a novel bias attractor and the original linear classifier.

Learning to generate imaginary tasks for improving generalization in meta-learning

no code implementations9 Jun 2022 Yichen Wu, Long-Kai Huang, Ying WEI

The success of meta-learning on existing benchmarks is predicated on the assumption that the distribution of meta-training tasks covers meta-testing tasks.

Image Classification Memorization +2

Dynamic imaging and characterization of volatile aerosols in e-cigarette emissions using deep learning-based holographic microscopy

no code implementations31 Mar 2021 Yi Luo, Yichen Wu, Liqiao Li, Yuening Guo, Ege Cetintas, Yifang Zhu, Aydogan Ozcan

To evaluate the effects of e-liquid composition on aerosol dynamics, we measured the volatility of the particles generated by flavorless, nicotine-free e-liquids with various PG/VG volumetric ratios, revealing a negative correlation between the particles' volatility and the volumetric ratio of VG in the e-liquid.

Deep learning-based virtual refocusing of images using an engineered point-spread function

no code implementations22 Dec 2020 Xilin Yang, Luzhe Huang, Yilin Luo, Yichen Wu, Hongda Wang, Yair Rivenson, Aydogan Ozcan

We present a virtual image refocusing method over an extended depth of field (DOF) enabled by cascaded neural networks and a double-helix point-spread function (DH-PSF).

Image Reconstruction

Learning to Purify Noisy Labels via Meta Soft Label Corrector

1 code implementation3 Aug 2020 Yichen Wu, Jun Shu, Qi Xie, Qian Zhao, Deyu Meng

By viewing the label correction procedure as a meta-process and using a meta-learner to automatically correct labels, we could adaptively obtain rectified soft labels iteratively according to current training problems without manually preset hyper-parameters.

Meta-Learning

Structural Residual Learning for Single Image Rain Removal

no code implementations19 May 2020 Hong Wang, Yichen Wu, Qi Xie, Qian Zhao, Yong Liang, Deyu Meng

Such a structural residual setting guarantees the rain layer extracted by the network finely comply with the prior knowledge of general rain streaks, and thus regulates sound rain shapes capable of being well extracted from rainy images in both training and predicting stages.

Rain Removal

A Survey on Rain Removal from Video and Single Image

1 code implementation18 Sep 2019 Hong Wang, Yichen Wu, Minghan Li, Qian Zhao, Deyu Meng

The investigations on rain removal from video or a single image has thus been attracting much research attention in the field of computer vision and pattern recognition, and various methods have been proposed against this task in the recent years.

Rain Removal

Deep learning-based color holographic microscopy

no code implementations15 Jul 2019 Tairan Liu, Zhensong Wei, Yair Rivenson, Kevin De Haan, Yibo Zhang, Yichen Wu, Aydogan Ozcan

We report a framework based on a generative adversarial network (GAN) that performs high-fidelity color image reconstruction using a single hologram of a sample that is illuminated simultaneously by light at three different wavelengths.

Generative Adversarial Network Image Reconstruction

Three-dimensional virtual refocusing of fluorescence microscopy images using deep learning

1 code implementation31 Jan 2019 Yichen Wu, Yair Rivenson, Hongda Wang, Yilin Luo, Eyal Ben-David, Laurent A. Bentolila, Christian Pritz, Aydogan Ozcan

Three-dimensional (3D) fluorescence microscopy in general requires axial scanning to capture images of a sample at different planes.

Resolution enhancement in scanning electron microscopy using deep learning

no code implementations30 Jan 2019 Kevin de Haan, Zachary S. Ballard, Yair Rivenson, Yichen Wu, Aydogan Ozcan

We report resolution enhancement in scanning electron microscopy (SEM) images using a generative adversarial network.

Generative Adversarial Network Super-Resolution

Cross-modality deep learning brings bright-field microscopy contrast to holography

no code implementations17 Nov 2018 Yichen Wu, Yilin Luo, Gunvant Chaudhari, Yair Rivenson, Ayfer Calis, Kevin De Haan, Aydogan Ozcan

Deep learning brings bright-field microscopy contrast to holographic images of a sample volume, bridging the volumetric imaging capability of holography with the speckle- and artifact-free image contrast of bright-field incoherent microscopy.

A Practical Algorithm for Topic Modeling with Provable Guarantees

2 code implementations19 Dec 2012 Sanjeev Arora, Rong Ge, Yoni Halpern, David Mimno, Ankur Moitra, David Sontag, Yichen Wu, Michael Zhu

Topic models provide a useful method for dimensionality reduction and exploratory data analysis in large text corpora.

Dimensionality Reduction Topic Models

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