Search Results for author: Fayao Liu

Found 40 papers, 13 papers with code

REACTO: Reconstructing Articulated Objects from a Single Video

no code implementations17 Apr 2024 Chaoyue Song, Jiacheng Wei, Chuan-Sheng Foo, Guosheng Lin, Fayao Liu

In this paper, we address the challenge of reconstructing general articulated 3D objects from a single video.

Sculpt3D: Multi-View Consistent Text-to-3D Generation with Sparse 3D Prior

no code implementations14 Mar 2024 Cheng Chen, Xiaofeng Yang, Fan Yang, Chengzeng Feng, Zhoujie Fu, Chuan-Sheng Foo, Guosheng Lin, Fayao Liu

In this paper, we present a new framework Sculpt3D that equips the current pipeline with explicit injection of 3D priors from retrieved reference objects without re-training the 2D diffusion model.

3D Generation Text to 3D

Rethinking Few-shot 3D Point Cloud Semantic Segmentation

1 code implementation1 Mar 2024 Zhaochong An, Guolei Sun, Yun Liu, Fayao Liu, Zongwei Wu, Dan Wang, Luc van Gool, Serge Belongie

The former arises from non-uniform point sampling, allowing models to distinguish the density disparities between foreground and background for easier segmentation.

Few-shot 3D Point Cloud Semantic Segmentation Segmentation +1

Fine Structure-Aware Sampling: A New Sampling Training Scheme for Pixel-Aligned Implicit Models in Single-View Human Reconstruction

1 code implementation29 Feb 2024 Kennard Yanting Chan, Fayao Liu, Guosheng Lin, Chuan Sheng Foo, Weisi Lin

Lastly, to further improve the training process, FSS proposes a mesh thickness loss signal for pixel-aligned implicit models.

Leveraging Large-Scale Pretrained Vision Foundation Models for Label-Efficient 3D Point Cloud Segmentation

no code implementations3 Nov 2023 Shichao Dong, Fayao Liu, Guosheng Lin

Recently, large-scale pre-trained models such as Segment-Anything Model (SAM) and Contrastive Language-Image Pre-training (CLIP) have demonstrated remarkable success and revolutionized the field of computer vision.

3D Semantic Segmentation Point Cloud Segmentation +5

ELFNet: Evidential Local-global Fusion for Stereo Matching

1 code implementation ICCV 2023 Jieming Lou, Weide Liu, Zhuo Chen, Fayao Liu, Jun Cheng

Although existing stereo matching models have achieved continuous improvement, they often face issues related to trustworthiness due to the absence of uncertainty estimation.

Domain Generalization Stereo Matching

MoDA: Modeling Deformable 3D Objects from Casual Videos

1 code implementation17 Apr 2023 Chaoyue Song, Tianyi Chen, YiWen Chen, Jiacheng Wei, Chuan Sheng Foo, Fayao Liu, Guosheng Lin

To solve this problem, we propose neural dual quaternion blend skinning (NeuDBS) to achieve 3D point deformation, which can perform rigid transformation without skin-collapsing artifacts.

Effective End-to-End Vision Language Pretraining with Semantic Visual Loss

no code implementations18 Jan 2023 Xiaofeng Yang, Fayao Liu, Guosheng Lin

Current vision language pretraining models are dominated by methods using region visual features extracted from object detectors.

Unsupervised 3D Pose Transfer with Cross Consistency and Dual Reconstruction

1 code implementation18 Nov 2022 Chaoyue Song, Jiacheng Wei, Ruibo Li, Fayao Liu, Guosheng Lin

With $G$ as the basic component, we propose a cross consistency learning scheme and a dual reconstruction objective to learn the pose transfer without supervision.

Pose Transfer

CRCNet: Few-shot Segmentation with Cross-Reference and Region-Global Conditional Networks

no code implementations23 Aug 2022 Weide Liu, Chi Zhang, Guosheng Lin, Fayao Liu

Few-shot segmentation aims to learn a segmentation model that can be generalized to novel classes with only a few training images.

Segmentation

Long-tailed Recognition by Learning from Latent Categories

no code implementations2 Jun 2022 Weide Liu, Zhonghua Wu, Yiming Wang, Henghui Ding, Fayao Liu, Jie Lin, Guosheng Lin

Previous long-tailed recognition methods commonly focus on the data augmentation or re-balancing strategy of the tail classes to give more attention to tail classes during the model training.

Data Augmentation Long-tail Learning

Self-Training Vision Language BERTs with a Unified Conditional Model

no code implementations6 Jan 2022 Xiaofeng Yang, Fengmao Lv, Fayao Liu, Guosheng Lin

We use the labeled image data to train a teacher model and use the trained model to generate pseudo captions on unlabeled image data.

Weakly Supervised Segmentation on Outdoor 4D Point Clouds With Temporal Matching and Spatial Graph Propagation

1 code implementation CVPR 2022 Hanyu Shi, Jiacheng Wei, Ruibo Li, Fayao Liu, Guosheng Lin

We propose a novel temporal-spatial framework for effective weakly supervised learning to generate high-quality pseudo labels from these limited annotated data.

Point Cloud Segmentation Scene Understanding +2

On Automatic Data Augmentation for 3D Point Cloud Classification

1 code implementation11 Dec 2021 Wanyue Zhang, Xun Xu, Fayao Liu, Chuan-Sheng Foo

Data augmentation is an important technique to reduce overfitting and improve learning performance, but existing works on data augmentation for 3D point cloud data are based on heuristics.

3D Object Classification 3D Object Recognition +5

On Representation Knowledge Distillation for Graph Neural Networks

1 code implementation9 Nov 2021 Chaitanya K. Joshi, Fayao Liu, Xu Xun, Jie Lin, Chuan-Sheng Foo

Past work on distillation for GNNs proposed the Local Structure Preserving loss (LSP), which matches local structural relationships defined over edges across the student and teacher's node embeddings.

Contrastive Learning Knowledge Distillation

3D Pose Transfer with Correspondence Learning and Mesh Refinement

1 code implementation NeurIPS 2021 Chaoyue Song, Jiacheng Wei, Ruibo Li, Fayao Liu, Guosheng Lin

It aims to transfer the pose of a source mesh to a target mesh and keep the identity (e. g., body shape) of the target mesh.

3D Generation Pose Transfer

Few-Shot Segmentation with Global and Local Contrastive Learning

1 code implementation11 Aug 2021 Weide Liu, Zhonghua Wu, Henghui Ding, Fayao Liu, Jie Lin, Guosheng Lin

To this end, we first propose a prior extractor to learn the query information from the unlabeled images with our proposed global-local contrastive learning.

Contrastive Learning Image Segmentation +2

Point Discriminative Learning for Data-efficient 3D Point Cloud Analysis

no code implementations4 Aug 2021 Fayao Liu, Guosheng Lin, Chuan-Sheng Foo, Chaitanya K. Joshi, Jie Lin

In this work we propose PointDisc, a point discriminative learning method to leverage self-supervisions for data-efficient 3D point cloud classification and segmentation.

3D Object Classification 3D Part Segmentation +5

Dense Supervision Propagation for Weakly Supervised Semantic Segmentation on 3D Point Clouds

no code implementations23 Jul 2021 Jiacheng Wei, Guosheng Lin, Kim-Hui Yap, Fayao Liu, Tzu-Yi Hung

While dense labeling on 3D data is expensive and time-consuming, only a few works address weakly supervised semantic point cloud segmentation methods to relieve the labeling cost by learning from simpler and cheaper labels.

Point Cloud Segmentation Scene Understanding +3

Feature Flow: In-network Feature Flow Estimation for Video Object Detection

no code implementations21 Sep 2020 Ruibing Jin, Guosheng Lin, Changyun Wen, Jianliang Wang, Fayao Liu

Optical flow, which expresses pixel displacement, is widely used in many computer vision tasks to provide pixel-level motion information.

object-detection Optical Flow Estimation +1

Correlation Propagation Networks for Scene Text Detection

no code implementations30 Sep 2018 Zichuan Liu, Guosheng Lin, Wang Ling Goh, Fayao Liu, Chunhua Shen, Xiaokang Yang

In this work, we propose a novel hybrid method for scene text detection namely Correlation Propagation Network (CPN).

Scene Text Detection Text Detection

Structured Learning of Tree Potentials in CRF for Image Segmentation

no code implementations26 Mar 2017 Fayao Liu, Guosheng Lin, Ruizhi Qiao, Chunhua Shen

In this fashion, we easily achieve nonlinear learning of potential functions on both unary and pairwise terms in CRFs.

Image Segmentation Semantic Segmentation

Structured Learning of Binary Codes with Column Generation

no code implementations22 Feb 2016 Guosheng Lin, Fayao Liu, Chunhua Shen, Jianxin Wu, Heng Tao Shen

Our column generation based method can be further generalized from the triplet loss to a general structured learning based framework that allows one to directly optimize multivariate performance measures.

Image Retrieval Information Retrieval +1

Discriminative Training of Deep Fully-connected Continuous CRF with Task-specific Loss

no code implementations28 Jan 2016 Fayao Liu, Guosheng Lin, Chunhua Shen

We exemplify the usefulness of the proposed model on multi-class semantic labelling (discrete) and the robust depth estimation (continuous) problems.

Depth Estimation Multi-class Classification

CRF Learning with CNN Features for Image Segmentation

no code implementations28 Mar 2015 Fayao Liu, Guosheng Lin, Chunhua Shen

The deep CNN is trained on the ImageNet dataset and transferred to image segmentations here for constructing potentials of superpixels.

Image Segmentation Segmentation +2

Learning Depth from Single Monocular Images Using Deep Convolutional Neural Fields

1 code implementation26 Feb 2015 Fayao Liu, Chunhua Shen, Guosheng Lin, Ian Reid

Therefore, here we present a deep convolutional neural field model for estimating depths from single monocular images, aiming to jointly explore the capacity of deep CNN and continuous CRF.

Depth Estimation

Deep Convolutional Neural Fields for Depth Estimation from a Single Image

no code implementations CVPR 2015 Fayao Liu, Chunhua Shen, Guosheng Lin

Therefore, we in this paper present a deep convolutional neural field model for estimating depths from a single image, aiming to jointly explore the capacity of deep CNN and continuous CRF.

Depth Estimation

Learning Deep Convolutional Features for MRI Based Alzheimer's Disease Classification

no code implementations13 Apr 2014 Fayao Liu, Chunhua Shen

In this work, we propose to learn deep convolutional image features using unsupervised and supervised learning.

BIG-bench Machine Learning Classification +2

From Kernel Machines to Ensemble Learning

no code implementations4 Jan 2014 Chunhua Shen, Fayao Liu

This finding not only enables us to design new ensemble learning methods directly from kernel methods, but also makes it possible to take advantage of those highly-optimized fast linear SVM solvers for ensemble learning.

Ensemble Learning Translation

Online Unsupervised Feature Learning for Visual Tracking

no code implementations7 Oct 2013 Fayao Liu, Chunhua Shen, Ian Reid, Anton Van Den Hengel

Feature encoding with respect to an over-complete dictionary learned by unsupervised methods, followed by spatial pyramid pooling, and linear classification, has exhibited powerful strength in various vision applications.

Dictionary Learning Visual Tracking

Multiple Kernel Learning in the Primal for Multi-modal Alzheimer's Disease Classification

no code implementations3 Oct 2013 Fayao Liu, Luping Zhou, Chunhua Shen, Jianping Yin

In this work, we propose a novel multiple kernel learning framework to combine multi-modal features for AD classification, which is scalable and easy to implement.

General Classification

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