第五个主要动态因素:皮肤温度及其对基于EMG的手势识别的影响
概括
皮肤温度对手势识别的表面电肌图 (sEMG) 有重大影响. 考虑到温度变化对于开发强大的假肢控制和人机接口至关重要.
科学领域:
- 生物医学工程 生物医学工程
- 人与计算机的交互
- 信号处理 信号处理
背景情况:
- 表面电肌图 (sEMG) 对于假肢和人机接口中的手势识别至关重要.
- sEMG的性能受到四肢位置,电极移位和信号非静止性等因素的影响.
研究的目的:
- 研究皮肤温度作为影响基于sEMG的手势识别的新动态因素.
- 评估不同皮肤温度对sEMG信号特征和手势分类准确性的影响.
主要方法:
- 收集了12名参与者在寒冷,基线和炎热条件下同步的sEMG,光聚体显微镜 (PPG) 和惯性测量单位 (IMU) 数据.
- 评估了sEMG信号特征 (平均绝对值,中位频率,模糊) 和在不同温度下的手势识别模型性能.
- 使用BioPoint可穿戴设备进行数据采集.
主要成果:
- 低温改变了sEMG信号特征 (增加了平均绝对值,减少了中位频率).
- 在基线数据上训练的手势识别模型在非基线温度条件下表现不佳.
- 使用不同温度的数据进行训练提高了稳定性,但基本准确性略有下降.
- 多传感器方法 (EMG,PPG,IMU) 提高了基线准确性,但对温度变化的敏感性增加了.
结论:
- 皮肤温度是基于sEMG的手势识别中的一个关键,以前被忽视的因素.
- 开发温度感知策略对于强大的和适应性的人机接口和假肢控制至关重要.
- 引入了在不同温度下使用手势数据的新数据集,以促进未来的研究.
相关概念视频
01:19Assessing Body Temperature - Temporal Artery
1.0K
Here is a stepwise guide to assessing the body temperature at the temporal artery using a temporal artery thermometer
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.
Step 3: Assess the patient's...
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.
Step 3: Assess the patient's...
1.0K
01:28Factors Affecting Body Temperature
8.5K
As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
Factors may include:
Factors may include:
8.5K
01:14Assessing Body Temperature - Axilla
1.2K
Procedural Guide for Assessing Axillary Body Temperature using a Digital Thermometer:
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...
1.2K
01:14Assessing Body Temperature - Tympanic membrane
1.1K
Assessing tympanic membrane temperature involves using a tympanic membrane thermometer (TMT). Here is a step-by-step guide:
Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms.
Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement.
Step 3: Slide the probe cover in place to prevent cross-contamination.
Step 4: Instruct the patient to tilt their head to the side for comfort and check for cerumen...
Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms.
Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement.
Step 3: Slide the probe cover in place to prevent cross-contamination.
Step 4: Instruct the patient to tilt their head to the side for comfort and check for cerumen...
1.1K
01:25Body Temperature
4.0K
The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...
4.0K
01:07Body Temperature
1.3K
Body temperature reflects the equilibrium between heat production and heat loss within the body. Most heat is generated by metabolically active tissues, particularly the liver, heart, brain, kidneys, and endocrine organs. At rest, skeletal muscles contribute 20–30% of total heat production, but during vigorous exercise, this can increase up to 30–40 times.
The average body temperature is approximately 37°C (98.6°F) and typically ranges from 36.1–37.2°C...
The average body temperature is approximately 37°C (98.6°F) and typically ranges from 36.1–37.2°C...
1.3K