Search Results for author: Weijie Li

Found 15 papers, 7 papers with code

SARatrX: Towards Building A Foundation Model for SAR Target Recognition

2 code implementations15 May 2024 Weijie Li, Wei Yang, Yuenan Hou, Li Liu, Yongxiang Liu, Xiang Li

Despite the remarkable progress in synthetic aperture radar automatic target recognition (SAR ATR), recent efforts have concentrated on the detection or classification of a specific and coarse category, e. g., vehicles, ships, airplanes, or buildings.

Earth Observation Self-Supervised Learning

SARDet-100K: Towards Open-Source Benchmark and ToolKit for Large-Scale SAR Object Detection

1 code implementation11 Mar 2024 YuXuan Li, Xiang Li, Weijie Li, Qibin Hou, Li Liu, Ming-Ming Cheng, Jian Yang

To the best of our knowledge, SARDet-100K is the first COCO-level large-scale multi-class SAR object detection dataset ever created.

Ranked #2 on 2D Object Detection on SARDet-100K (using extra training data)

2k Object +2

Tuning-Free Noise Rectification for High Fidelity Image-to-Video Generation

no code implementations5 Mar 2024 Weijie Li, Litong Gong, Yiran Zhu, Fanda Fan, Biao Wang, Tiezheng Ge, Bo Zheng

The experimental results demonstrate the effectiveness of our approach in improving the fidelity of generated videos.

Denoising Image Animation +1

AtomoVideo: High Fidelity Image-to-Video Generation

no code implementations4 Mar 2024 Litong Gong, Yiran Zhu, Weijie Li, Xiaoyang Kang, Biao Wang, Tiezheng Ge, Bo Zheng

Recently, video generation has achieved significant rapid development based on superior text-to-image generation techniques.

Image to Video Generation Text-to-Image Generation

A Category Agnostic Model for Visual Rearrangment

no code implementations CVPR 2024 Yuyi Liu, Xinhang Song, Weijie Li, Xiaohan Wang, Shuqiang Jiang

This paper presents a novel category agnostic model for visual rearrangement task which can help an embodied agent to physically recover the shuffled scene configuration without any category concepts to the goal configuration.

Change Detection Scene Change Detection

Predicting Gradient is Better: Exploring Self-Supervised Learning for SAR ATR with a Joint-Embedding Predictive Architecture

2 code implementations26 Nov 2023 Weijie Li, Yang Wei, Tianpeng Liu, Yuenan Hou, YuXuan Li, Zhen Liu, Yongxiang Liu, Li Liu

The growing Synthetic Aperture Radar (SAR) data has the potential to build a foundation model through Self-Supervised Learning (SSL) methods, which can achieve various SAR Automatic Target Recognition (ATR) tasks with pre-training in large-scale unlabeled data and fine-tuning in small labeled samples.

Representation Learning Self-Supervised Learning

UMAAF: Unveiling Aesthetics via Multifarious Attributes of Images

no code implementations19 Nov 2023 Weijie Li, Yitian Wan, Xingjiao Wu, Junjie Xu, Cheng Jin, Liang He

Then, to better utilize image attributes in aesthetic assessment, we propose the Unified Multi-attribute Aesthetic Assessment Framework (UMAAF) to model both absolute and relative attributes of images.

Attribute

Hierarchical Disentanglement-Alignment Network for Robust SAR Vehicle Recognition

1 code implementation7 Apr 2023 Weijie Li, Wei Yang, Wenpeng Zhang, Tianpeng Liu, Yongxiang Liu, Li Liu

However, robustly recognizing vehicle targets is a challenging task in SAR due to the large intraclass variations and small interclass variations.

Data Augmentation Disentanglement

Discovering and Explaining the Non-Causality of Deep Learning in SAR ATR

2 code implementations3 Apr 2023 Weijie Li, Wei Yang, Li Liu, Wenpeng Zhang, Yongxiang Liu

Therefore, the degree of overfitting for clutter reflects the non-causality of deep learning in SAR ATR.

Deep Learning Selection bias

Layout-Based Causal Inference for Object Navigation

no code implementations CVPR 2023 Sixian Zhang, Xinhang Song, Weijie Li, Yubing Bai, Xinyao Yu, Shuqiang Jiang

The experience performs a positive effect on helping the agent infer the likely location of the goal when the layout gap between the unseen environments of the test and the prior knowledge obtained in training is minor.

Causal Inference Object

STAR: SQL Guided Pre-Training for Context-dependent Text-to-SQL Parsing

1 code implementation21 Oct 2022 ZeFeng Cai, Xiangyu Li, Binyuan Hui, Min Yang, Bowen Li, Binhua Li, Zheng Cao, Weijie Li, Fei Huang, Luo Si, Yongbin Li

Concretely, we propose two novel pre-training objectives which respectively explore the context-dependent interactions of NL utterances and SQL queries within each text-to-SQL conversation: (i) schema state tracking (SST) objective that tracks and explores the schema states of context-dependent SQL queries in the form of schema-states by predicting and updating the value of each schema slot during interaction; (ii) utterance dependency tracking (UDT) objective that employs weighted contrastive learning to pull together two semantically similar NL utterances and push away the representations of semantically dissimilar NL utterances within each conversation.

Contrastive Learning SQL Parsing +1

A Dynamic Subarray Structure in Reconfigurable Intelligent Surfaces for TeraHertz Communication Systems

no code implementations30 Jun 2022 Yicong Liu, Weijie Li, Zihuai Lin

In this study, we propose a dynamic RIS subarray structure to improve the performance of a THz MIMO communication system.

Hierarchical Object-to-Zone Graph for Object Navigation

1 code implementation ICCV 2021 Sixian Zhang, Xinhang Song, Yubing Bai, Weijie Li, Yakui Chu, Shuqiang Jiang

In this paper, we propose a hierarchical object-to-zone (HOZ) graph to guide the agent in a coarse-to-fine manner, and an online-learning mechanism is also proposed to update HOZ according to the real-time observation in new environments.

Deep Reinforcement Learning Object

Highly tunable quadruple quantum dot in a narrow bandgap semiconductor InAs nanowire

no code implementations27 Jan 2021 Jingwei Mu, Shaoyun Huang, Zhi-Hai Liu, Weijie Li, Ji-Yin Wang, Dong Pan, Guang-Yao Huang, Yuanjie Chen, Jianhua Zhao, H. Q. Xu

It is shown that these current lines can be individually assigned as arising from resonant electron transport through the energy levels of different QDs.

Mesoscale and Nanoscale Physics

CORAL: Colored structural representation for bi-modal place recognition

no code implementations22 Nov 2020 Yiyuan Pan, Xuecheng Xu, Weijie Li, Yunxiang Cui, Yue Wang, Rong Xiong

In this way, we fuse the structural features and visual features in the consistent bird-eye view frame, yielding a semantic representation, namely CORAL.

Visual Place Recognition

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