← Search

Lian Xu

8 accepted papers

2024

AEDNet: Adaptive Embedding and Multiview-Aware Disentanglement for Point Cloud Completion

ECCV 2024poster

"Point cloud completion involves inferring missing parts of 3D objects from incomplete point cloud data. It requires a model that understands the global structure of the object and reconstructs local details. To this end, we propose a global perception and local attention network, termed AEDNet, for…

Cited by 1SourcePDFScholar
2023

Learning Multi-Modal Class-Specific Tokens for Weakly Supervised Dense Object Localization

CVPR 2023poster

Weakly supervised dense object localization (WSDOL) relies generally on Class Activation Mapping (CAM), which exploits the correlation between the class weights of the image classifier and the pixel-level features. Due to the limited ability to address intra-class variations, the image classifier ca…

2023

VAPCNet: Viewpoint-Aware 3D Point Cloud Completion

ICCV 2023poster

Most existing learning-based 3D point cloud completion methods ignore the fact that the completion process is highly coupled with the viewpoint of a partial scan. However, the various viewpoints of incompletely scanned objects in real-world applications are normally unknown and directly estimating t…

Cited by 12PDFcodeScholar
2022

Active-Passive SimStereo - Benchmarking the Cross-Generalization Capabilities of Deep Learning-based Stereo Methods

NeurIPS 2022accept

In stereo vision, self-similar or bland regions can make it difficult to match patches between two images. Active stereo-based methods mitigate this problem by projecting a pseudo-random pattern on the scene so that each patch of an image pair can be identified without ambiguity. However, the projec…

Cited by 4SourcePDFScholar
2022

Multi-Class Token Transformer for Weakly Supervised Semantic Segmentation

CVPR 2022poster

This paper proposes a new transformer-based framework to learn class-specific object localization maps as pseudo labels for weakly supervised semantic segmentation (WSSS). Inspired by the fact that the attended regions of the one-class token in the standard vision transformer can be leveraged to for…

Cited by 301PDFcodeScholar
2021

Leveraging Auxiliary Tasks With Affinity Learning for Weakly Supervised Semantic Segmentation

ICCV 2021poster

Semantic segmentation is a challenging task in the absence of densely labelled data. Only relying on class activation maps (CAM) with image-level labels provides deficient segmentation supervision. Prior works thus consider pre-trained models to produce coarse saliency maps to guide the generation o…

Cited by 154PDFcodeScholar
2019

An Improved Approach to Weakly Supervised Semantic Segmentation

ICASSP 2019accepted

Weakly supervised semantic segmentation with image-level labels is of great significance since it alleviates the dependency on dense annotations. However, it is a challenging task as it aims to achieve a mapping from high-level semantics to low-level features. In this work, we propose a three-step m…

Cited by 0SourceScholar
2018

Classification of Corals in Reflectance and Fluorescence Images Using Convolutional Neural Network Representations

ICASSP 2018accepted

Coral species, with complex morphology and ambiguous boundaries, pose a great challenge for automated classification. CNN activations, which are extracted from fully connected layers of deep networks (FC features), have been successfully used as powerful universal representations in many visual task…

Cited by 0SourceScholar