Search Results for author: Shuangjie Xu

Found 15 papers, 2 papers with code

PPAD: Iterative Interactions of Prediction and Planning for End-to-end Autonomous Driving

no code implementations14 Nov 2023 Zhili Chen, Maosheng Ye, Shuangjie Xu, Tongyi Cao, Qifeng Chen

Unlike existing end-to-end autonomous driving frameworks, PPAD models the interactions among ego, agents, and the dynamic environment in an autoregressive manner by interleaving the Prediction and Planning processes at every timestep, instead of a single sequential process of prediction followed by planning.

Autonomous Driving Motion Planning +1

From One to Many: Dynamic Cross Attention Networks for LiDAR and Camera Fusion

no code implementations25 Sep 2022 Rui Wan, Shuangjie Xu, Wei Wu, Xiaoyi Zou, Tongyi Cao

The whole fusion architecture named Dynamic Cross Attention Network (DCAN) exploits multi-level image features and adapts to multiple representations of point clouds, which allows DCA to serve as a plug-in fusion module.

Autonomous Driving

Sparse Cross-scale Attention Network for Efficient LiDAR Panoptic Segmentation

no code implementations16 Jan 2022 Shuangjie Xu, Rui Wan, Maosheng Ye, Xiaoyi Zou, Tongyi Cao

Two major challenges of 3D LiDAR Panoptic Segmentation (PS) are that point clouds of an object are surface-aggregated and thus hard to model the long-range dependency especially for large instances, and that objects are too close to separate each other.

Panoptic Segmentation

DRINet++: Efficient Voxel-as-point Point Cloud Segmentation

no code implementations16 Nov 2021 Maosheng Ye, Rui Wan, Shuangjie Xu, Tongyi Cao, Qifeng Chen

The Sparse Feature Encoder extracts the local context information for each point, and the Sparse Geometry Feature Enhancement enhances the geometric properties of a sparse point cloud via multi-scale sparse projection and attentive multi-scale fusion.

Point Cloud Segmentation Segmentation +1

Coarse to Fine: Domain Adaptive Crowd Counting via Adversarial Scoring Network

no code implementations27 Jul 2021 Zhikang Zou, Xiaoye Qu, Pan Zhou, Shuangjie Xu, Xiaoqing Ye, Wenhao Wu, Jin Ye

In specific, at the coarse-grained stage, we design a dual-discriminator strategy to adapt source domain to be close to the targets from the perspectives of both global and local feature space via adversarial learning.

Crowd Counting Transfer Learning

Crowd Counting via Hierarchical Scale Recalibration Network

no code implementations7 Mar 2020 Zhikang Zou, Yifan Liu, Shuangjie Xu, Wei Wei, Shiping Wen, Pan Zhou

Extensive experiments on crowd counting datasets (ShanghaiTech, MALL, WorldEXPO'10, and UCSD) show that our HSRNet can deliver superior results over all state-of-the-art approaches.

Crowd Counting

HVNet: Hybrid Voxel Network for LiDAR Based 3D Object Detection

no code implementations CVPR 2020 Maosheng Ye, Shuangjie Xu, Tongyi Cao

We present a Hybrid Voxel network that solves this problem by fusing voxel feature encoder (VFE) of different scales at point-wise level and project into multiple pseudo-image feature maps.

3D Object Detection Autonomous Driving +1

Dynamic Graph Correlation Learning for Disease Diagnosis with Incomplete Labels

no code implementations26 Feb 2020 Daizong Liu, Shuangjie Xu, Pan Zhou, Kun He, Wei Wei, Zichuan Xu

In this work, we propose a Disease Diagnosis Graph Convolutional Network (DD-GCN) that presents a novel view of investigating the inter-dependency among different diseases by using a dynamic learnable adjacency matrix in graph structure to improve the diagnosis accuracy.

Multi-Label Classification

Tell-the-difference: Fine-grained Visual Descriptor via a Discriminating Referee

no code implementations14 Oct 2019 Shuangjie Xu, Feng Xu, Yu Cheng, Pan Zhou

In this paper, we investigate a novel problem of telling the difference between image pairs in natural language.

Image Captioning

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