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Longling Zhang

3 accepted papers

2025

An Efficient Residual-based Low-dose PET Reconstruction with Spatial-Frequency Integration

ICASSP 2025accepted

Positron emission tomography (PET) is a nuclear medical imaging technique where image quality depends on the dose of radionuclides administered to the patient. While standard-dose PET (SPET) offers high-quality imaging, it also poses radiation risks. If reconstructing low-dose PET (LPET) images can…

Cited by 0SourceScholar
2025

Detecting and Corrupting Convolution-based Unlearnable Examples

AAAI 2025technical

Convolution-based unlearnable examples (UEs) employ class-wise multiplicative convolutional noise to training samples, severely compromising model performance. This fire-new type of UEs have successfully countered all defense mechanisms against UEs. The failure of such defenses can be attributed to…

2024

Stealthy Backdoor Attack Towards Federated Automatic Speaker Verification

ICASSP 2024accepted

Automatic speech verification (ASV) authenticates individuals based on distinct vocal patterns, playing a pivotal role in many applications such as voice-based unlocking systems for devices. The ASV system comprises three stages: training, registration, and validation. The model refines using voice…

Cited by 0SourceScholar