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Pengcheng Zhang

8 accepted papers

2026

Modulation-Based Backdoors: Leveraging Amplitude and Frequency Patterns to Attack Speaker Recognition

AAAI 2026technical

Deep neural networks (DNNs) are widely and successfully applied in the field of speaker recognition. However, recent studies reveal that these models are vulnerable to backdoor attacks, where adversaries inject malicious behaviors into victim models by poisoning the training process. Existing attack

Cited by 0SourcePDFScholar
2025

Revisiting Continual Ultra-fine-grained Visual Recognition with Pre-trained Models

IJCAI 2025

Continual ultra-fine-grained visual recognition (C-UFG) aims to continuously learn to categorize the increasing number of cultivates (VC-UFG) and consistently recognize crops across reproductive stages (HC-UFG), which is a fundamental goal of intelligent agriculture. Despite the progress made in gen

2025

View-aware Decomposition and Unification for Fast Ground-to-Aerial Person Search

IROS 2025

Ground-to-aerial person search leverages cooperative efforts between unmanned aerial vehicles (UAV) and ground surveillance cameras to locate person individuals. Despite the progress made by recent works, the impact of the discrepancy between the two views is underestimated. This limits the overall

Cited by 0SourcecodeScholar
2024

3D Ultrasound Image Acquisition and Diagnostic Analysis of the Common Carotid Artery with a Portable Robotic Device

IROS 2024poster

Ultrasound (US) imaging of the carotid artery (CA) is a non-invasive diagnostic tool widely used in the medical field to assess the condition of the carotid artery, thereby predicting the risk of cardiovascular and cerebrovascular diseases. However, implementing this method in primary healthcare can…

Cited by 0SourceScholar
2024

Scribble-Supervised Semantic Segmentation with Prototype-based Feature Augmentation

ICML 2024poster

Scribble-supervised semantic segmentation presents a cost-effective training method that utilizes annotations generated through scribbling. It is valued in attaining high performance while minimizing annotation costs, which has made it highly regarded among researchers. Scribble supervision propagat…

2022

Where to Focus: Investigating Hierarchical Attention Relationship for Fine-Grained Visual Classification

ECCV 2022poster

"Object categories are often grouped into a multi-granularity taxonomic hierarchy. Classifying objects at coarser-grained hierarchy requires global and common characteristics, while finer-grained hierarchy classification relies on local and discriminative features. Therefore, humans should also subc…