大家好：

周院长邀请的来自澳大利亚的何详健博士将于到海韵校区做报告,何博士学术造诣深厚，欢迎各位老师及同学前来交流。

时间为：12月7日下午3：00。

地点：办公楼C座505 

 Title；Hexagonal Structure for Image Processing

> Speaker: Associate Professor and Reader Xiangjian He

> Affiliation: University of Technology, Sydney

>

> Abstract

> Using hexagonal grids to represent digital images has been studied for

> more than 40 years. Increased processing capabilities of graphic devices

> and recent improvements in CCD technology have made hexagonal sampling

> attractive for practical applications and brought new interests on this

> topic. The hexagonal grid is considered to be preferable to the

> rectangular grid due to its higher symmetry, consistent connectivity and

> higher data density and is even proved to be superior to square grid in

> many applications. Since there is no mature hardware for hexagonal-based

> image capture and display, square to hexagonal image conversion has to be

> done before hexagonal-based image processing. Although hexagonal image

> representation and storage has not come to a standard, experiments based

> on existing hexagonal coordinate systems have never ceased. In this talk,

> some features of hexagonal structure will be introduced. Then, some

> typical hexagonal coordinates and addressing schemes, as well as hexagonal

> based image processing and applications, will be reviewed.