Search Results for author: Mingyu Zhang

Found 4 papers, 1 papers with code

STAR-GNN: Spatial-Temporal Video Representation for Content-based Retrieval

no code implementations15 Aug 2022 Guoping Zhao, Bingqing Zhang, Mingyu Zhang, Yaxian Li, Jiajun Liu, Ji-Rong Wen

It models a video with a lattice feature graph in which the nodes represent regions of different granularity, with weighted edges that represent the spatial and temporal links.

Representation Learning Retrieval +1

InvisibiliTee: Angle-agnostic Cloaking from Person-Tracking Systems with a Tee

1 code implementation15 Aug 2022 Yaxian Li, Bingqing Zhang, Guoping Zhao, Mingyu Zhang, Jiajun Liu, Ziwei Wang, JiRong Wen

After a survey for person-tracking system-induced privacy concerns, we propose a black-box adversarial attack method on state-of-the-art human detection models called InvisibiliTee.

Adversarial Attack Human Detection

Modality-Balanced Embedding for Video Retrieval

no code implementations18 Apr 2022 Xun Wang, Bingqing Ke, Xuanping Li, Fangyu Liu, Mingyu Zhang, Xiao Liang, Qiushi Xiao, Cheng Luo, Yue Yu

This modality imbalanceresults from a) modality gap: the relevance between a query and a video text is much easier to learn as the query is also a piece of text, with the same modality as the video text; b) data bias: most training samples can be solved solely by text matching.

Retrieval Text Matching +1

Unsupervised Adversarial Attacks on Deep Feature-based Retrieval with GAN

no code implementations12 Jul 2019 Guoping Zhao, Mingyu Zhang, Jiajun Liu, Ji-Rong Wen

Such tendency indicates that the model indeed learned how to toy with both image retrieval systems and human eyes.

Image Classification Image Retrieval +1

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