Development of the Healthcare support e-Hospital system at the Local Area using digital-watermarking technology

本研究提出了“电子医院”的新概念。我们提出的电子医院通过互联网通信技术将诊所、医院和患者家中等分散的医疗资源统一起来。电子医院以低成本提供高质量的综合医疗服务。本文描述了我们为电子医院开发的最新基础技术。这个电子医院系统处理生命数据和医学图像数据，如CT和MR图像。在患者家中测量的生命数据从测量设备自动存储在家庭的生命服务器中。存储的重要数据将通过互联网传输到“家庭医生服务器”。医院影像中心还通过互联网将患者的医学图像传输到家庭医生的服务器。家庭医生的服务器自动集成这些患者的生命数据和医学图像。电子医院通过使用我们建议的水印技术，为这些数据传输提供安全的互联网通信。…此外，这种水印技术具有两个功能。一种是将医学图像隐藏在虚拟图像中，以防止图像服务器被破解。另一种是用于自动将版权图像插入到医学图像中，以保持医学图像的原创性和所有权。利用本文提出的数字水印技术，实现了对医学图像的保护，患者一个月的带水印生命数据(6.67kB)在互联网上的传输时间约为0.14秒。在相同的传输条件下，一个带水印的CT研究(200个切片)的传输时间约为74秒。提取的医学图像具有良好的医生诊断质量。此外，通过患者和家庭医生之间的电视摄像机，可以在电子医院系统中自由咨询。患者对作为家庭医生的电子医院系统进行了足够的会诊感到满意，电子医院不仅处理医学图像数据，还处理患者的生命数据。也就是说，该地区作为一家医院发挥着作用。使用安全互联网通信的电子医院系统成为连接患者、家庭医生和医院成像中心的完整的患者健康护理系统。较少

This research proposes a new concept called "e-hospital". Our propose e-hospital unites distributed medical resources such as clinic, hospital and patient's home by the Internet communication technologies. The e-hospital provides integrated high quality medical services with low-cost. This paper describes our newly developed fundamental techniques for our e-hospital.This e-hospital system deals with vital data and medical image data such as CT and MR images. The vital data measured at patient's home is automatically stored in "Vital server of the home" from the measurement devices. The stored vital data will be transmitting to "Home doctor's server" via Internet. Hospital imaging center also transmit the patient's medical images to the Home doctor's server via Internet. Home doctor's server integrates these patient's vital data and medical images automatically. The e-hospital provides secured Internet communication for these data transfer by using our proposed watermarking techniques. … More This watermarking technique has two functions. One is to hide the medical image in dummy images for discourage cracking image servers. Another one is for automatically inserting a copyright image into the medical images preserving originality and ownership of the medical images. By using our proposed watermarking technology, medical images are protected.The transmitting time for patient's one-month watermarked vital data (6.67kB) is about 0.14 sec via Internet. And the transmission time of one watermarked CT study (200slices) is about 74 second with the same transmission condition. The extracted medical images possess good quality for physician's diagnosis. Moreover, it is possible to consult freely in e-hospital system through the TV camera between the patient and the home doctor. The patient was satisfied in doing an enough consultation as the home doctor with e-hospital system.The e-hospital deals with not only medical image data but also patient vital data. That is, the region functions as one hospital. The e-hospital system that uses a secured Internet communication becomes a total patient health care system, which connects patients, home doctors, and hospital imaging centers. Less