CLUE WG L. Xiao Internet-Draft R. Even Intended status: Informational Huawei Technologies Co., Ltd. Expires: January 7, 2013 July 6, 2012 Use Case for Telemedical with Multi-streams draft-xiao-clue-telemedical-use-case-00.txt Abstract This memo presenst a telemedicine use case where multiple presentation streams are used for conveying different information in parallel to the main video from the surgery room Status of this Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at http://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on January 7, 2013. Copyright Notice Copyright (c) 2012 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Xiao & Even Expires January 7, 2013 [Page 1] Internet-Draft Telemedicine Use Case July 2012 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Requirement for telemedical use case . . . . . . . . . . . . . 4 3. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 4 4. Security Considerations . . . . . . . . . . . . . . . . . . . . 5 5. Informative References . . . . . . . . . . . . . . . . . . . . 5 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 5 Xiao & Even Expires January 7, 2013 [Page 2] Internet-Draft Telemedicine Use Case July 2012 1. Introduction This use case describes a scenario where multiple presentation streams are used. In this use case, the local site is a surgery room connected to one or more different types of remote sites. In the local site three main cameras capture the whole room. Multiple presentation inputs are possible: a surgery camera which is used to provide to zoomed view of the operation, an endoscopic monitor, an X-ray CT image output device, a B-ultrasonic apparatus, a cardiogram generator, an MRI image instrument, etc. These devices are used to provide multiple local video presentation streams to help the surgeon monitor the status of the patient and assist the process of the surgery. Three main screens and one (or more) presentation screen(s) are provided. The main screens can be used to display the remote experts. The presentation screen(s) can be used to display multiple presentation streams from local and remote sites simultaneously. Three main cameras capture different parts of the surgery room. The surgeon can decide the number, the size and the placement of the presentations displayed on the local presentation screen(s). He can also indicate which local presentation captures are provided for the remote sites. The local site can send multiple presentation captures to remote sites and it can receive multiple presentations related to the patient or the procedure from them. One type of remote site is a single or dual screen and one camera system with a consulting expert of a particular field present. In the general case the remote sites can be part of a Telepresence conference with multiple experts to start a consultation. The presentation screens are also provided at the remote sites allowing the experts to see the details of the operation and related data. Like the main site, the experts can decide the number, the size and the placement of the presentations displayed on the presentation screens. The presentation screens can display presentation streams from the surgery room or other remote sites and also presentation streams generated locally by the remote site. Thus the experts can also start sending presentation streams, which can carry medical records, pathology data, or their reference and analysis, etc. Another type of remote site is a typical immersive Telepresence room with three camera/screen pairs allowing more experts to join the consultation. These sites can also be used for education. The teacher and the students are in different remote sites. Students can observe and learn the details of the whole procedure, while the teacher can explain and answer questions during the operation. Generally, the education sites can only send streams among Xiao & Even Expires January 7, 2013 [Page 3] Internet-Draft Telemedicine Use Case July 2012 themselves. For example, they can share slides and videos, but neither their main captures nor their presentation captures are sent to other sites (i.e. the surgery room and the experts). All remote education sites can display the surgery room. Or they can display it on the center screen, and the rest of the screens can show the teacher and the student who is asking a question. All remote sites shall display the zoomed surgery view on their presentation screen. Other dynamic and static data can be optional and up to user's decision. For all the above sites, more presentation screens can be used to enhance visibility: one screen for zoomed surgery stream and the others for medical image streams, such as MRI images, cardiogram, B-ultrasonic images and pathology data. 2. Requirement for telemedical use case 1. The solution must enable an endpoint to send and receive multiple presentation captures. 2. The solution must support a means to identify presentation captures, including the number, purpose, etc. 3. The solution must support multiple presentation sources from different endpoints at the same time. 4. The solution must support means of enabling interoperability between Telepresence endpoints that send and receive different numbers of presentation streams. 5. The solution must support means of enabling interoperability between Telepresence endpoints where presentation screens are of different resolutions. 6. The solution must enable an endpoint to mix multiple presentation captures locally. Note: the last two requirements are included in the CLUE requirement draft: 3. IANA Considerations This document contains no IANA considerations. Xiao & Even Expires January 7, 2013 [Page 4] Internet-Draft Telemedicine Use Case July 2012 4. Security Considerations While there are likely to be security considerations for any solution for telepresence interoperability, this document has no security considerations. 5. Informative References [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. Authors' Addresses Lennard Xiao Huawei Technologies Co., Ltd. Shenzhen, PRC Email: lennard.xiao@huawei.com Roni Even Huawei Technologies Co., Ltd. Tel Aviv, Israel Email: even.roni@huawei.com Xiao & Even Expires January 7, 2013 [Page 5]