On the professional side , he has been serving as the convener of the iso iec jtc1 sc29 wg1 jpeg standards committee , a position he has held since 1996 . as the convener , he has led a group of over 100 experts from over 18 countries that developed the iso jpeg 2000 family of imaging standard that has been adopted by many groups in the imaging industry , including most recently the digital cinema group 在专业界别内，李博士从1996年起出任iso / iecjtc1sc29 / wg1 jpeg标准委员会的召集人，带领来自超过18个国家的过百名专家发展isojpeg2000影像标准，该标准已被业内多个团体采用，包括最近digitalcinemagroup采用其为未来数码电影的压缩标准。
Fcs have brought into legco the voices of the commercial and industrial sector , the professional sector , trade unions and other sectors . elected representatives of these sectors can also make use of their professional knowledge to contribute to the work of the legco , enriching the deliberations of the council in terms of diversity and coverage 功能界别将工商界、专业界别、工会和其他界别的声音带进立法会，这些界别的议会代表亦可以凭他们的专业知识，为立法会的工作作出贡献，使讨论更多元化和全面。
