| 精准人脸识别及测温技术在疫情防控中的应用——普利商用精准识别技术典型案例 |
| |
| 引用本文： | 赖眺.精准人脸识别及测温技术在疫情防控中的应用——普利商用精准识别技术典型案例[J].教育技术导刊,2009,19(10):8-14. |
| |
| 作者姓名： | 赖眺 |
| |
| 作者单位： | 1. 精伦电子股份有限公司；2. 武汉普利商用机器有限公司，湖北 武汉 430223 |
| |
| 摘 要： | 为了改善复杂环境下的人脸识别精度，特别是在当前疫情防控转入常态化的形势下，提升戴口罩场景下的人脸识别精度及红外测温精度至关重要。基于对场景数据的统计和分析，通过对识别参数的动态优化，提升人脸算法识别精度；基于人脸检测的戴口罩检测算法，自动识别是否戴口罩，并针对戴口罩场景采用专用的人脸识别模型，提升人脸识别性能；基于人脸检测的红外测温技术，自动识别测温区域和距离，并对测温结果进行校正，提高测温精度。结果表明，开放场景下识别准确率超过98%；人证核验场景下识别准确率超过93%，戴口罩场景下识别准确率超过92%，红外测温误差小于0.3℃。基于场景适配的参数优化策略，能够在不依赖核心算法性能提升的条件下，使得人脸算法识别性能提升7%；基于人脸检测的红外测温技术，通过温度补偿策略，使得测温误差小于0.3℃。
|
| 关 键 词： | 深度学习 神经网络 自适应算法 口罩检测 精准测温 |
| 收稿时间： | 2020-08-21 |
On Grounded Design Theory and the Practical Case of Its Use in Constructivism |
| |
| PENG Jun,JI Gang,ZHANG Yan-hong,ZHAN Tao.On Grounded Design Theory and the Practical Case of Its Use in Constructivism[J].Introduction of Educational Technology,2009,19(10):8-14. |
| |
| Authors: | PENG Jun JI Gang ZHANG Yan-hong ZHAN Tao |
| |
| Institution: | 1. Routon Electronic Co.， Ltd.；2. Wuhan Precision Business Machine Co.， Ltd.， Wuhan 430223，China |
| |
| Abstract: | Instruction design based on learning theory, and in practice, it is the medium of learning theory and instruction theory.Then how the learning theory guard the practice depends on the method of instruction design. As one of the most popular learning theory, there are many successful instructional case based on it in the western countries.However,the examples of using it successfully in our country are few, and bad instruction design is the fundamental problem. In this paper, aimed to find out how to use constructivism to improve educational practice in our country, the writer introduce and evaluate a new instruction design named GROUNDED DESIGN,which is the key factor lead to success in the western countries, and then list some wonderful cases. |
| |
| Keywords: | Constructivism Instruction Design Grounded Design Instructional Cases |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《教育技术导刊》浏览原始摘要信息 |
| 点击此处可从《教育技术导刊》下载免费的PDF全文 |
