Search Results for author: Shiying Li

Found 22 papers, 11 papers with code

Linear optimal transport subspaces for point set classification

no code implementations15 Mar 2024 Mohammad Shifat E Rabbi, Naqib Sad Pathan, Shiying Li, Yan Zhuang, Abu Hasnat Mohammad Rubaiyat, Gustavo K Rohde

Our approach employs the Linear Optimal Transport (LOT) transform to obtain a linear embedding of set-structured data.

Classification

Approximation properties of slice-matching operators

no code implementations16 Oct 2023 Shiying Li, Caroline Moosmueller

In particular, we demonstrate an invariance property with respect to the source measure, an equivariance property with respect to the target measure, and Lipschitz continuity concerning the slicing directions.

Retrieval

SAM-OCTA: Prompting Segment-Anything for OCTA Image Segmentation

2 code implementations11 Oct 2023 Xinrun Chen, Chengliang Wang, Haojian Ning, Shiying Li, Mei Shen

The method fine-tunes a pre-trained segment anything model (SAM) using low-rank adaptation (LoRA) and utilizes prompt points for local RVs, arteries, and veins segmentation in OCTA.

Image Segmentation Segmentation +1

SAM-OCTA: A Fine-Tuning Strategy for Applying Foundation Model to OCTA Image Segmentation Tasks

1 code implementation21 Sep 2023 Chengliang Wang, Xinrun Chen, Haojian Ning, Shiying Li

In the analysis of optical coherence tomography angiography (OCTA) images, the operation of segmenting specific targets is necessary.

Image Segmentation Segmentation +1

An Accurate and Efficient Neural Network for OCTA Vessel Segmentation and a New Dataset

1 code implementation18 Sep 2023 Haojian Ning, Chengliang Wang, Xinrun Chen, Shiying Li

Optical coherence tomography angiography (OCTA) is a noninvasive imaging technique that can reveal high-resolution retinal vessels.

Efficient Neural Network Retinal Vessel Segmentation

Nonrigid Object Contact Estimation With Regional Unwrapping Transformer

no code implementations ICCV 2023 Wei Xie, Zimeng Zhao, Shiying Li, Binghui Zuo, Yangang Wang

Based on this representation, our Regional Unwrapping Transformer (RUFormer) learns the correlation priors across regions from monocular inputs and predicts corresponding contact and deformed transformations.

Object

Measure transfer via stochastic slicing and matching

no code implementations11 Jul 2023 Shiying Li, Caroline Moosmueller

The proof builds on an interpretation as a stochastic gradient descent scheme on the Wasserstein space.

Image Morphing

Omni-Line-of-Sight Imaging for Holistic Shape Reconstruction

no code implementations21 Apr 2023 Binbin Huang, Xingyue Peng, Siyuan Shen, Suan Xia, Ruiqian Li, Yanhua Yu, Yuehan Wang, Shenghua Gao, Wenzheng Chen, Shiying Li, Jingyi Yu

The core of our method is to put the object nearby diffuse walls and augment the LOS scan in the front view with the NLOS scans from the surrounding walls, which serve as virtual ``mirrors'' to trap lights toward the object.

Object

Geodesic Properties of a Generalized Wasserstein Embedding for Time Series Analysis

no code implementations4 Jun 2022 Shiying Li, Abu Hasnat Mohammad Rubaiyat, Gustavo K. Rohde

Transport-based metrics and related embeddings (transforms) have recently been used to model signal classes where nonlinear structures or variations are present.

Time Series Time Series Analysis

End-to-End Signal Classification in Signed Cumulative Distribution Transform Space

1 code implementation30 Apr 2022 Abu Hasnat Mohammad Rubaiyat, Shiying Li, Xuwang Yin, Mohammad Shifat E Rabbi, Yan Zhuang, Gustavo K. Rohde

This paper presents a new end-to-end signal classification method using the signed cumulative distribution transform (SCDT).

Classification

Invariance encoding in sliced-Wasserstein space for image classification with limited training data

2 code implementations9 Jan 2022 Mohammad Shifat E Rabbi, Yan Zhuang, Shiying Li, Abu Hasnat Mohammad Rubaiyat, Xuwang Yin, Gustavo K. Rohde

However, they are known to underperform when training data are limited and thus require data augmentation strategies that render the method computationally expensive and not always effective.

Data Augmentation Image Classification

Onsite Non-Line-of-Sight Imaging via Online Calibrations

no code implementations29 Dec 2021 Zhengqing Pan, Ruiqian Li, Tian Gao, Zi Wang, Ping Liu, Siyuan Shen, Tao Wu, Jingyi Yu, Shiying Li

There has been an increasing interest in deploying non-line-of-sight (NLOS) imaging systems for recovering objects behind an obstacle.

Object

Non-line-of-Sight Imaging via Neural Transient Fields

1 code implementation2 Jan 2021 Siyuan Shen, Zi Wang, Ping Liu, Zhengqing Pan, Ruiqian Li, Tian Gao, Shiying Li, Jingyi Yu

We present a neural modeling framework for Non-Line-of-Sight (NLOS) imaging.

Learning Energy-Based Models With Adversarial Training

1 code implementation11 Dec 2020 Xuwang Yin, Shiying Li, Gustavo K. Rohde

We study a new approach to learning energy-based models (EBMs) based on adversarial training (AT).

Adversarial Defense Adversarial Robustness +3

Partitioning signal classes using transport transforms for data analysis and machine learning

no code implementations8 Aug 2020 Akram Aldroubi, Shiying Li, Gustavo K. Rohde

A relatively new set of transport-based transforms (CDT, R-CDT, LOT) have shown their strength and great potential in various image and data processing tasks such as parametric signal estimation, classification, cancer detection among many others.

BIG-bench Machine Learning Classification +1

Hair Segmentation on Time-of-Flight RGBD Images

no code implementations7 Mar 2019 Yuanxi Ma, Cen Wang, Shiying Li, Jingyi Yu

Robust segmentation of hair from portrait images remains challenging: hair does not conform to a uniform shape, style or even color; dark hair in particular lacks features.

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