MyFreePACS为什么不属于Free Software, MyFreePACS中的ActiveX控件已有版权文字信息：LegalCopyright : (c) David de Regt. All rights reserved.，最关键的图像浏览控件是有版权声明且不提供源码。开放的PHP代码部分算是开源软件了。 Wikipedia对开源软件(Open-source software (OSS))的定义：
Open-source software (OSS) is computer software that is available in source code form: the source code and certain other rights normally reserved for copyright holders are provided under a software license that permits users to study, change, improve and at times also to distribute the software.
Some open source licenses meet the requirements of the Open Source Definition. Some open source software is available within the public domain.
Open source software is very often developed in a public, collaborative manner. Open-source software is the most prominent example of open-source development and often compared to (technically defined) user-generated content or (legally defined) open content movements.
A report by Standish Group states that adoption of open-source software models has resulted in savings of about $60 billion per year to consumers.
Open Source Definition
The Open Source Definition is used by the Open Source Initiative to determine whether or not a software license can be considered open source.
The definition was based on the Debian Free Software Guidelines, written and adapted primarily by Bruce Perens. They are by no means definitive even as applied to software. Clause 3 is the primary legal difference between free software and open source software as such, free software is stricter in interpreting 3. Clauses 5 and 6 are not a condition of any major open content license regimes, which commonly do restrict types of uses and users; for instance, Creative Commons has open content licenses that explicitly forbid commercial use.
Open source doesn't just mean access to the source code.
The distribution terms of open-source software must comply with the following criteria:
1. Free Redistribution
The license shall not restrict any party from selling or giving away the software as a component of an aggregate software distribution containing programs from several different sources. The license shall not require a royalty or other fee for such sale.
2. Source Code
The program must include source code, and must allow distribution in source code as well as compiled form. Where some form of a product is not distributed with source code, there must be a well-publicized means of obtaining the source code for no more than a reasonable reproduction cost preferably, downloading via the Internet without charge. The source code must be the preferred form in which a programmer would modify the program. Deliberately obfuscated source code is not allowed. Intermediate forms such as the output of a preprocessor or translator are not allowed.
3. Derived Works
The license must allow modifications and derived works, and must allow them to be distributed under the same terms as the license of the original software.
4. Integrity of the Author's Source Code
The license may restrict source-code from being distributed in modified form only if the license allows the distribution of “patch files” with the source code for the purpose of modifying the program at build time. The license must explicitly permit distribution of software built from modified source code. The license may require derived works to carry a different name or version number from the original software.
5. No Discrimination Against Persons or Groups
The license must not discriminate against any person or group of persons.
6. No Discrimination Against Fields of Endeavor.
The license must not restrict anyone from making use of the program in a specific field of endeavor. For example, it may not restrict the program from being used in a business, or from being used for genetic research.
7. Distribution of License
The rights attached to the program must apply to all to whom the program is redistributed without the need for execution of an additional license by those parties.
8. License Must Not Be Specific to a Product
The rights attached to the program must not depend on the program's being part of a particular software distribution. If the program is extracted from that distribution and used or distributed within the terms of the program's license, all parties to whom the program is redistributed should have the same rights as those that are granted in conjunction with the original software distribution.
9. License Must Not Restrict Other Software
The license must not place restrictions on other software that is distributed along with the licensed software. For example, the license must not insist that all other programs distributed on the same medium must be open-source software.
10. License Must Be Technology-Neutral
No provision of the license may be predicated on any individual technology or style of interface.
– Open Source Initiative, http://opensource.org/docs/osd
在以上资料中均有yxPACS属于”自主开发“，并获得”玉溪市科学技术奖二等奖“，影像浏览界面似乎在哪里见过，yxPACS使用的ActiveX控件：http://184.108.40.206/DicomViewSetup.exe 控件MFPView.ocx文件信息如下： Version language : 英语(美国) CompanyName : David de Regt FileDescription : DICOM Viewer FileVersion : 0.0.3.2 InternalName : MFPView.ocx LegalCopyright : (c) David de Regt. All rights reserved. OriginalFilename : MFPView.ocx ProductName : MyFreePACS Viewer ProductVersion : 0.0.3.2
David de Regt开发了知名的MyFreePACS，他的网站： http://www.idoimaging.com/program/264 http://www.pacssoft.com/index.php?content=myfreepacs
MyFreePACS is a free web-based radiology image storage and viewing tool developed at Children's Hospital Seattle by PACSsoft members. Overview MyFreePACS was developed to provide an easy-to-use, HIPAA-compliant method for viewing Radiology images from anywhere on a hospital network, or remotely over VPN. MyFreePACS uses a full DICOM server to receive and store images, and then is able to transmit them over the web to the MyFreePACS web client. The MyFreePACS web client is a web page that utilizes an ActiveX control for viewing and manipulation of images. The client contains all of the tools found in modern image viewing stations including 3d localization and multi-planar reformation. Many tools in MyFreePACS are not found in the web-based viewing software from major PACS vendors. The system is built entirely on free components and freely available for download and installation from the web. Features
* Fully DICOM-compliant Server (Mallinckrodt Archive Server) * Easy 5-step setup to turn any Windows PC into a MyFreePACS server * Web-based administration of MyFreePACS and DICOM server components * HIPAA-compliant password-protected login sequence and full administrator-viewable access logging * Web-based client installs in seconds and provides a powerful array of features for image manipulation and viewing: o Find cases by Name, ID, Date, or Modality o Download entire patients' data sets, or only specific studies or series o Lossless image compression is available for connections less than 100 megabit LAN o Toolset: + Series scrolling + Windowing/Levelling + Panning + Zooming + Measurement Line + Single Point Information + Oval Information (Area/Mean/SD) + 3D Localization + Multi-planar Reformation o Image flipping, rotating, and inverting o JPEG Image Exporting o From 1×1 to 5×4 window array with synchronized scrolling for Ultrasound o Position-based image linking (offset or exact) o Common presets for Computed Tomography o Localizer boxes
MyFreePACS是免费的WEB PACS,到了国内就变成自主研发，花费175万RMB的PACS系统，并因此获得”玉溪市科学技术奖二等奖“，而原作者David de Regt没有在任何地方提及，可能也不方便提及吧。中文化界面算不上原创开发，在无法获得源码的基础上也不可能做进一步的开发，最多只算个应用案例而已。最关键的影像显示ActiveX控件版权都属于(c) David de Regt. All rights reserved.，竟然还能申请了软件著作权，“课题在同类研究中达到国内先进、省内领先水平”，真是敢说敢做啊。
软佳影像存储与传输系统(SoftPlus Picture Archiving And Communication System) 的定位是全院级Full-PACS，使用DICOM 3.0国际医疗影像通讯标准对影像进行处理、存储、打印、传输，全院各科室临床主治医师、放射科医师和专科医师都能获得影像和诊断报告。软佳电子病历系统(Softplus Electronic Medical Record System) 目前已经集成PACS影像查看和诊断报告查看。软佳医院信息管理系统(SoftPlus Hospital Information System) 可和上述两个系统做无缝集成。 软佳医疗软件：http://www.ynhis.com