Search Results for author: Youjie Zhou

Found 7 papers, 2 papers with code

Attentive Multimodal Fusion for Optical and Scene Flow

1 code implementation28 Jul 2023 Youjie Zhou, Guofeng Mei, Yiming Wang, Fabio Poiesi, Yi Wan

This paper presents an investigation into the estimation of optical and scene flow using RGBD information in scenarios where the RGB modality is affected by noise or captured in dark environments.

Loop closure detection using local 3D deep descriptors

1 code implementation31 Oct 2021 Youjie Zhou, Yiming Wang, Fabio Poiesi, Qi Qin, Yi Wan

We compare our L3D-based loop closure approach with recent approaches on LiDAR data and achieve state-of-the-art loop closure detection accuracy.

Loop Closure Detection

Groupwise Tracking of Crowded Similar-Appearance Targets From Low-Continuity Image Sequences

no code implementations CVPR 2016 Hongkai Yu, Youjie Zhou, Jeff Simmons, Craig P. Przybyla, Yuewei Lin, Xiaochuan Fan, Yang Mi, Song Wang

In particular, the within-group association is modeled by a nonrigid 2D Thin-Plate transform and a sequence of group shrinking, group growing and group merging operations are then developed to refine the composition of each group.

Cell Tracking

Co-interest Person Detection from Multiple Wearable Camera Videos

no code implementations ICCV 2015 Yuewei Lin, Kareem Ezzeldeen, Youjie Zhou, Xiaochuan Fan, Hongkai Yu, Hui Qian, Song Wang

Wearable cameras, such as Google Glass and Go Pro, enable video data collection over larger areas and from different views.

Human Detection

Unsupervised Cross-Domain Recognition by Identifying Compact Joint Subspaces

no code implementations5 Sep 2015 Yuewei Lin, Jing Chen, Yu Cao, Youjie Zhou, Lingfeng Zhang, Yuan Yan Tang, Song Wang

By adopting a natural and widely used assumption -- "the data samples from the same class should lay on a low-dimensional subspace, even if they come from different domains", the proposed method circumvents the limitation of the global domain shift, and solves the cross-domain recognition by finding the compact joint subspaces of source and target domain.

Domain Adaptation Object Recognition +2

LooseCut: Interactive Image Segmentation with Loosely Bounded Boxes

no code implementations11 Jul 2015 Hongkai Yu, Youjie Zhou, Hui Qian, Min Xian, Yuewei Lin, Dazhou Guo, Kang Zheng, Kareem Abdelfatah, Song Wang

In this paper, we develop a new LooseCut algorithm that can handle cases where the input bounding box only loosely covers the foreground object.

Image Segmentation Object +5

Feature Sampling Strategies for Action Recognition

no code implementations28 Jan 2015 Youjie Zhou, Hongkai Yu, Song Wang

Although dense local spatial-temporal features with bag-of-features representation achieve state-of-the-art performance for action recognition, the huge feature number and feature size prevent current methods from scaling up to real size problems.

Action Recognition Temporal Action Localization

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