The Hong Kong Polytechnic University

Jia You

Yongping Zheng

Kai Yu Tong

Chun Li

Zhenhua Guo

Qin Li

Ching Ching Jenny Chung

Kam Yuk Claudia Lai

Hor Yau Carrie Lee

Ping See Diana Mak

Ping Kong Alexander Wai

Qiang Sun

Fuk Tat Arthur Mak

Hoi Lam Martin Chow

Kam Wah Ma

A fundus camera using infrared light sources, which included an imaging optical path and an optical path for focusing and positioning and two optical paths share a common set of retina objective lens, and a computer-assisted method for retinal vessel segmentation in general and diabetic retinopathy (DR) image segmentation in particular. The method is primarily based on Multiscale Production of the Matched Filter (MPMF) scheme, which together the fundus camera, is useful for non-invasive diabetic retinopathy detection and monitoring.

Apparatus and method for non-invasive diabetic retinopathy detection and monitoring

An portable tracking device integrating a mobile phone module (e.g. based on GSM or 3G networks), a GPS module, a radio Beacon and ultrasonic beacon. The tracking device is normally in a hibernated state when the entire device consumes little energy and require no periodically changing or recharging batteries to power the device. It consumes power from the primary battery only when a tracking process is actually taken place. With this portable tracking device on the person who is unable to affirmatively report his or her whereabout, the remote center and/or a search team can communicate the GPS module, radio beacon and ultrasonic beacon of the tracking device via the mobile phone module based on existing wireless communication technologies, such SMS, GPRS, ect, on GSM or 3 G networks, which also serves as a means of initial rough estimation of the tracking device's location.

Personal tracking device with low power consumption

Growing community of inventors

Hong Kong, China

Jia You