Ultraviolet Positioning via TDOA: Error Analysis and System Prototype

no code implementations • 29 Feb 2024 • Shihui Yu, Chubing Lv, Yueke Yang, Yuchen Pan, Lei Sun, Juliang Cao, Ruihang Yu, Chen Gong, Wenqi Wu, Zhengyuan Xu

The theoretical average error matches well with the simulation results, which indicates that theoretical fitting can provide reliable guidance and prediction for hardware experiments.

Metric-aligned Sample Selection and Critical Feature Sampling for Oriented Object Detection

no code implementations • 29 Jun 2023 • Peng Sun, Yongbin Zheng, Wenqi Wu, Wanying Xu, Shengjian Bai

First, to align the metric inconsistency between sample selection and regression loss calculation caused by fixed IoU strategy, we introduce affine transformation to evaluate the quality of samples and propose a distance-based label assignment strategy.

object-detection Object Detection +2

Identity-Enhanced Network for Facial Expression Recognition

no code implementations • 11 Dec 2018 • Yanwei Li, Xingang Wang, Shilei Zhang, Lingxi Xie, Wenqi Wu, Hongyuan Yu, Zheng Zhu

Facial expression recognition is a challenging task, arguably because of large intra-class variations and high inter-class similarities.

Facial Expression Recognition Facial Expression Recognition (FER) +1