论文标题
DIY图形选项卡：教育工作者的图形平板电脑的一种成本效益的替代品
DIY Graphics Tab: A Cost-Effective Alternative to Graphics Tablet for Educators
论文作者
论文摘要
对于在线教育者来说，录制讲座是一项正常的任务，而图形平板电脑是一个很好的工具。但是，对于许多教练来说，这非常昂贵。在本文中，我们提出了一种称为“ DIY图形”选项卡的替代方案，该替代方案的功能与图形选项卡相同，但仅需要笔，纸和笔记本电脑的网络摄像头。我们的系统在带有网络摄像头的纸上拍摄著作的图像并输出内容。该任务并不简单，因为由于视角而存在障碍，例如手动阻塞，纸张运动，照明和透视扭曲。使用了一条管道，该管道适用于从输入帧中生成适当输出的分割和后处理。我们还对教师进行了用户体验评估。
Recording lectures is a normal task for online educators, and a graphics tablet is a great tool for that. However, it is very expensive for many instructors. In this paper, we propose an alternative called "DIY Graphics Tab" that functions largely in the same way as a graphic tab, but requires only a pen, paper, and laptop's webcam. Our system takes images of writings on a paper with a webcam and outputs the contents. The task is not straightforward since there are obstacles, such as hand occlusion, paper movements, lighting, and perspective distortion due to the viewing angle. A pipeline is used that applies segmentation and post-processing for generating appropriate output from input frames. We also conducted user experience evaluations from the teachers.
