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Multimedia combines content such as sound, images and graphics to make applications dynamic in areas such as education, entertainment, social networking and telemedicine. The key research challenges lie in managing complex multimedia objects and extending them into three dimensions with the capacity for real-time interaction. Our researchers focus on three-dimensional computer graphic modelling and rendering, distributed three-dimensional graphics, image and video quality enhancement, content-based image retrieval, and multi-sensor data and motion analysis.
The Department of Computing has established a solid foundation in Algorithm and Theory, Machine Learning and Artificial Intelligence, Big Data Analytics, Cyber Security and Privacy, Networking and Mobile Computing, and System Modelling and Software Engineering.
Our students’ cutting-edge research is supported by enthusiastic faculty members and support staff who ensure that the Department provides them with a positive and nurturing academic environment.
The Department also ensures that all research students have opportunities to enrich their research experience through research exchange visits, attendance at leading international conferences and participation in global competitions and departmental projects.
The Department’s global network crosses disciplines and bridges industries, offering our students ample career opportunities, resources and access to research funding.
*Price shown is for indicative purposes, please check with institution
Expected September 2026
The Hong Kong Polytechnic University
ST305, 3/F, Ng Wing Hong Building,
Hung Hom,
Kowloon City, Hong Kong, Kowloon
3-year full-time PhD programme
Normally hold an MPhil or equivalent (a research postgraduate degree with a dissertation as an award requirement) conferred by a recognised university.
4-year full-time PhD programme
Normally hold:
A Master’s degree; OR
A Bachelor’s degree with First Class Honours (or equivalent qualification), conferred by a recognised university.
PolyU may accept other equivalent qualifications. The decision is made on an individual basis.
English Language Requirements
The requirements for those who do not have a degree for which English was the language of instruction at a recognized university are:
An overall score of at least 6.5 in the International English Language Testing System (IELTS); OR
A Test of English as a Foreign Language (TOEFL) score of 80 or above for the Internet-based test or 550 or above for the paper-based test.
All English language test scores are considered valid for two years after the date of the test.
*There may be different IELTS requirements depending on your chosen course.
PolyU ranks 57th in the QS World University Rankings 2025 and 84th in the Times Higher Education World University Rankings 2025.
