面对基于自适应道增强和类内约束的反伪造
Ye Li1, Wenzhe Sun1, Zuhe Li1
1School of Computer Science and Technology, Zhengzhou University of Light Industry, Zhengzhou 450002, China.
Journal of imaging
|April 25, 2025
概括
本研究引入了一种使用增强道注意力 (ECA) 和类内区分器 (ICD) 的新型面部防伪框架,以提高安全性. 该方法增强了特征提取,并优化了分类,以实现更可靠的身份验证.
科学领域:
- 计算机科学 计算机科学
- 人工智能的人工智能
- 生物识别信息 生物识别信息
背景情况:
- 面部防伪对于安全的身份验证至关重要.
- 现有模型面临的挑战是,在不同的条件下提取特征,并重叠特征分布.
研究的目的:
- 开发一个先进的面部防伪框架,克服当前单模式方法的局限性.
- 为了提高特征表示和分类性能,以实现强大的伪造检测.
主要方法:
- 提出了一个联合优化框架,集成增强频道注意力 (ECA) 和类内区分器 (ICD).
- 使用深度卷积和瓶重建模块 (BRM) 来进行特征提取和改进.
- 运用道注意力来增强关键特征表示和ICD来优化特征分布.
主要成果:
- 在多个基准数据集中实现了较低的平均分类错误率 (ACER):2.45% (CASIA-SURF),1.16% (CASIA-SURF CeFA),1.74% (CASIA-FASD) 和2.17% (OULU-NPU).
- 与现有的面部防伪方法相比,表现出优越的性能.
结论:
- 拟议的框架有效地改善了面部防伪的特征学习和概括.
- 集成ECA和ICD为身份验证和安全监控提供了一个强大的解决方案.
相关概念视频
Masking and Demasking Agents
2.2K
EDTA titrations may necessitate masking and demasking agents to temporarily protect a particular metal ion in a mixture from the EDTA reaction. These agents facilitate the sequential analysis of the metal ions by forming stable complexes with some—but not all—metal ions during certain steps.
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on...
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on...
2.2K
Buffer Effectiveness
48.2K
Buffer solutions do not have an unlimited capacity to keep the pH relatively constant . Instead, the ability of a buffer solution to resist changes in pH relies on the presence of appreciable amounts of its conjugate weak acid-base pair. When enough strong acid or base is added to substantially lower the concentration of either member of the buffer pair, the buffering action within the solution is compromised.
The buffer capacity is the amount of acid or base that can be added to a given volume...
The buffer capacity is the amount of acid or base that can be added to a given volume...
48.2K
Distance Corrections
21
To achieve precise distance measurements, especially in surveying and construction, certain corrections must be applied to account for potential sources of error like the standardization errors, temperature variations, and slope adjustments.Standardization error emerges when measurement equipment undergoes changes, such as wear, repairs, or weather impacts. To address this, surveyors compare the equipment’s readings to a standard. This process identifies any deviation that might lead to...
21
Reconstruction of Signal using Interpolation
145
Signal processing techniques are essential for accurately converting continuous signals to digital formats and vice versa. When a continuous signal is sampled with a period T, the resulting sampled signal exhibits replicas of the original spectrum in the frequency domain, spaced at intervals equal to the sampling frequency. To handle this sampled signal, a zero-order hold method can be applied, which creates a piecewise constant signal by retaining each sample's value until the next...
145
Reducing Line Loss
130
In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss...
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss...
130
Aliasing
100
Accurate signal sampling and reconstruction are crucial in various signal-processing applications. A time-domain signal's spectrum can be revealed using its Fourier transform. When this signal is sampled at a specific frequency, it results in multiple scaled replicas of the original spectrum in the frequency domain. The spacing of these replicas is determined by the sampling frequency.
If the sampling frequency is below the Nyquist rate, these replicas overlap, preventing the original...
If the sampling frequency is below the Nyquist rate, these replicas overlap, preventing the original...
100


