在线学习每年都在Swift增长。 但是,有一些因素与传统的课堂学习方法不同。 在在线学习中,教师(主持人)无法一次监视每个学生(参与者),这在课堂学习中是可能的。 因此,难以识别学习者的注意力。 本文提出了一种深度学习方法,用于在边缘计算中使用卷积神经网络检测学习者的注意力水平。 另外,跟踪浏览器的活动以进一步识别学习者的注意力水平。 神经网络将学生的注意力分类为四个不同类别之一,即高度专心,专心,不太专心和至少专心。 此关注级别是在边缘设备上计算的,并且仅最终输出发送到服务器。 结果,消耗了少量的带宽并且尊重了用户的隐私。 使用“电子环境中的情感状态数据集”(DAiSEE)对CNN模型进行了训练。 在实验过程中,有效的系统精度达到了84.1%。
2021-12-23 13:32:23 1018KB Online Classroom Digital Learning
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The hand is quicker than the eye. In many cases, so is digital video. Maintaining image quality in bandwidth - and memory - restricted environments is quickly becoming a reality as thriving research delves ever deeper into perceptual coding techniques, which discard superfluous data that humans cannot process or detect. Surveying the topic from a Human Visual System (HVS)-based approach, "Digital Video Image Quality and Perceptual Coding" outlines the principles, metrics, and standards associated with p erceptual coding, as well as the latest techniques and applications. This book is divided broadly into three parts. First, it introduces the fundamental theory, concepts, principles, and techniques underlying the field, such as the basics of compression, HVS modeling, and coding artefacts associated with current well-known techniques. The next section focuses on picture quality assessment criteria; subjective and objective methods and metrics, including vision model based digital video impairment metrics; testing procedures; and international standards regarding image quality. Finally, practical applications come into focus, including digital image and video coder designs based on the HVS as well as post-filtering, restoration, error correction, and concealment techniques. The permeation of digital images and video throughout the world cannot be understated. Nor can the importance of preserving quality while using minimal storage space, and "Digital Video Image Quality and Perceptual Coding" provides the tools necessary to accomplish this goal.
2021-12-21 21:08:57 18.78MB DigitalVideoIm PerceptualCodin
本标准结合我国广东等地多年来开展的数字声音广播试验和大量测试研究报告,并结合我国实际情 况而制订。 为有利于中文数据信息功能的实现,本标准引用GB13000.1和GB2312标准中的相关内容,对接收机 的内置中文字库作了规定。
2021-12-21 18:01:25 1.26MB DAB specification 中文标准
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虚拟组装乐高机器人, windows 英文 版。
2021-12-21 17:23:18 14.31MB 乐高 机器人 虚拟 组装
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digital-7字体(LED数字样式字体)。该字体主要用于显示LED数字灯样式的字体。直接导入到Android assets文件下,作为font 字体使用。
2021-12-21 17:18:02 34KB 字体
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高清版的老外的书,不错的。一些专业基础的相关知识,入门级别吧。
2021-12-21 09:10:34 11.18MB sensor camera
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ERC11155:蘑菇 指令 yarn :安装 yarn compile :编译 yarn test :测试 yarn migrate :迁移到rinkeby yarn verify:m :在etherscan上验证蘑菇 yarn verify:r :在etherscan上验证MushroomReceiver 如何在rinkeby上部署NFT? yarn安装 将.env.example重命名为.env并相应地设置环境变量的值 设置tokenURI中的第12行Mushroom.sol 在meta目录中设置元数据 在nfts目录中设置nfts 运行yarn migrate以将合同部署到rinkeby 运行yarn verify:m以在etherscan上验证合同 访问并输入以上已部署的Mushroom合同的地址 与您的NFT一起享受!!! MushroomReceiver的注意事项
2021-12-21 08:14:10 715KB tutorial digital-art nft openzeppelin
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二值图像处理,全英文教材,含距离变换和图像细化算法,值得参考
2021-12-20 09:36:27 13.08MB 二值图像处理
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digital_video_introduction, 关于视频技术的介绍
2021-12-19 13:00:54 10.93MB 开源
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一份关于图像处理的ppt,还有数字信号处理的基础.入门的好东西.
2021-12-19 12:58:34 1.73MB Video
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