通过边缘感知和Mamba引导网络架构增强低剂量PET图像恢复
Laihua Wang1, Delong Liu1, Jihong Zheng1
1Qufu Normal University, No. 57, Jingxuan West Road, Qufu City, Qufu, 273165, CHINA.
Biomedical physics & engineering express
|January 27, 2026
概括
使用ED-Mamba改进了低剂量PET (LPET) 图像恢复,ED-Mamba是一种结合边缘感知和Mamba指导的新型网络. 这种方法提高了图像质量和细节,以提高脑成像的诊断准确度.
科学领域:
- 医疗成像医学成像
- 人工智能的人工智能
- 神经科学是一个神经科学.
背景情况:
- 定子发射断层扫描 (PET) 对诊断至关重要,但低剂量PET (LPET) 患有信号噪声比降低和细节损失.
- 现有的方法难以有效地从LPET数据中重建高质量的图像.
研究的目的:
- 开发一个新的深度学习网络,ED-Mamba,用于增强低剂量脑PET图像恢复.
- 为了提高信号噪声比,并保留LPET图像中的细节.
主要方法:
- 拟议的ED-Mamba网络集成了一个边缘感知模块 (EdPM) 和一个辅助引导Mamba模块 (AGMM).
- 该EdPM捕获多个规模的信息,并增强边缘细节.
- AGMM 模拟全球依赖关系以进行全面的图像重建.
主要成果:
- 与DDPM相比,ED-Mamba的PSNR达到了26.237dB (+2.39%) 和SSIM达到了0.967 (+0.42%).
- 该网络的重量很轻,只有16.07M的参数.
- 在公共和患者数据集上表现出卓越的稳定性和通用性.
结论:
- 通过整合边缘感知和Mamba指导,ED-Mamba有效地提高了LPET图像恢复质量.
- 拟议的方法为提高低剂量PET成像诊断精度提供了一个有希望的解决方案.
- 专业模块的集成为医学图像重建提供了新的方向.
相关概念视频
Protein Networks
4.5K
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
4.5K
Subliminal Perception
782
Subliminal perception refers to the processing of sensory information that occurs below the level of conscious awareness. Researchers study subliminal perception by presenting a stimulus, such as a word or image, very quickly, typically around 50 milliseconds. This rapid presentation is often followed by another stimulus, such as a pattern of dots or lines, which blocks further mental processing of the initial stimulus. As a result, if participants cannot identify the initial stimulus better...
782
Factors Affecting Perception
2.7K
Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
An illustrative example of a perceptual set is the scenario where an airline pilot told...
An illustrative example of a perceptual set is the scenario where an airline pilot told...
2.7K
Self-Evaluation: Self-Enhancement and Self-Verification
5.8K
Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
5.8K
Perception
1.1K
Perception is a fundamental psychological process that enables individuals to organize, interpret, and consciously experience sensory information. This process is crucial for understanding and interacting with the world around us. It includes both bottom-up and top-down processing, each playing a distinct role in how we perceive our environment.
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
1.1K
Gestalt Principles of Perception
1.2K
Gestalt principles provide a framework for understanding how humans perceive objects as unified wholes within their context. These principles are essential in explaining the cognitive processes that make sense of complex visual stimuli by organizing them into coherent groups. One fundamental principle is proximity, which posits that objects located close to each other are perceived as a collective group. For instance, when dots are positioned near one another, the visual system interprets them...
1.2K


