JPEG XR格式通过国际标准化组织认证 - Windows 7支持

Win7之家（ www.win7china.com）：JPEG XR格式通过国际标准化组织认证 - Windows 7支持

JPEG XR(微软HD Photo格式)今天终于通过审核,成为ITU-T推荐的国际标准(ISO/IEC 29199-2),与此同时使用JPEG XR的JPIP议定书已经开始撰写.
“JPEG XR”的标准化确保数码相机,打印机,显示器和软件公司能够在开发其新产品的时候兼容互通.其核心技术由微软核心媒体开发团队开发完成,针对当前和将来的数字图像发展需求以提供了许多新的优势和特点.

在Windows 7操作系统中已经支持了这种新的文件格式,JPEG XR相比其它技术更有优势,其中包括更好的压缩技术,以一半的文件大小保存与JPEG相同质量的图像,或以相同大小的文件保存质量相当于JPEG两倍的图 像.JPEG组织还对微软开放与JPEG XR相关的专利的决策表示了赞扬,称微软免许可费政策将有助于JPEG推动JPEG XR普及,有助于确保它能够被更多的用户所采用.JPEG组织还鼓励其它公司向微软学习.

原文：

The Joint Photographic Experts Group (JPEG) is a Working Group of ISO/IEC, the International Organisation for Standardization / International Electrotechnical Commission, (ISO/IEC JTC 1/SC 29/WG 1) and of the International Telecommunication Union (ITU-T SG16), responsible for the popular JPEG, JPEG 2000 and more recently, the JPSearch, JPEG XR families of imaging standards. The WG1 group meets nominally three times a year, in Europe, North America and Asia.
The latest meeting was held on July 13 - 17, 2009, in the Polaris Technology Park, Pula, Sardinia, Italy, hosted by the Italian National Body.

The Advanced Image Coding and Evaluation Methodologies (ISO/IEC 29170 - AIC) ad hoc group is working on a technical report on evaluation methodologies to help in the definition and refinement of coding techniques. AIC is issuing two calls for requirements and technologies: one for medical imaging and one for camera sensor data interchange and archival applications.

JPEG XR (ISO/IEC 29199-2) is now an International Standard and also an ITU-T Recommendation (T.832). New work has been started to enable the use of JPEG XR image coding within the JPIP protocol, which allows interactive browsing of networked images. The Motion JPEG XR specification for support of video sequences is currently approaching the Final Committee Draft phase of the ISO/IEC approval process. WG 1 is pleased to note the successful completion of JPEG XR verification testing experiments for low dynamic range images.