• Skip to content
  • Skip to footer
  • Accessibility options
University of Brighton
  • About us
  • Business and
    employers
  • Alumni and
    supporters
  • For
    students
  • For
    staff
  • Accessibility
    options
Open menu
Home
Home
  • Close
  • Study here
    • Courses and subjects
    • Find a course
    • A-Z course list
    • Explore our subjects
    • Academic departments
    • Visiting the university
    • Explore: get to know us
    • Upcoming events
    • Virtual tours
    • Chat to our students and staff
    • Open days
    • Applicant days
    • Order a prospectus
    • Ask a question
    • Studying here
    • Accommodation and locations
    • Applying
    • Undergraduate
    • Postgraduate
    • Transferring from another university
    • The Student Contract
    • Clearing
    • International students
    • Fees and finance
    • Advice and help
    • Advice for students
    • Advice for parents and carers
    • Advice for schools and teachers
    • Managing your application
    • Undergraduate
    • Postgraduate
    • Apprenticeships
  • Research
    • Research and knowledge exchange
    • Research and knowledge exchange organisation
    • The Global Challenges
    • Centres of Research Excellence (COREs)
    • Research Excellence Groups (REGs)
    • Our research database
    • Information for business
    • Community University Partnership Programme (CUPP)
    • Postgraduate research degrees
    • PhD research disciplines and programmes
    • PhD funding opportunities and studentships
    • How to apply for your PhD
    • Research environment
    • Investing in research careers
    • Strategic plan
    • Research concordat
    • News, events, publications and films
    • Featured research and knowledge exchange projects
    • Research and knowledge exchange news
    • Inaugural lectures
    • Research and knowledge exchange publications and films
    • Academic staff search
  • About us
  • Business and employers
  • Alumni, supporters and giving
  • Current students
  • Staff
  • Accessibility
Search our site

A multi-coloured mix of molecules, columns of numbers and radio waves, depicting modern communications and research into internet security.

Centre for Secure, Intelligent and Usable Systems
  • What we do
  • Join us for study, work or visit
  • Who we are
  • What we do
    • What we do
    • Security
    • Intelligence
    • Usability
    • Our research and enterprise projects
    • Our research and enterprise impact
  • Our research and enterprise projects
    • Our research and enterprise projects
    • EMPOWERCARE
    • 3D-COFORM
    • Accessible Reasoning with Diagrams
    • Adaptation of mobile and distributed systems
    • Automatic semantic analysis of 3D content in digital repositories
    • ChartEx
    • DEFeND Data governance for supporting GDPR
    • Engineering and Evolving Secure Software Systems
    • EPOCH
    • Hove Plinth - Place-based narratives
    • iV&L Net
    • Mesh saliency
    • MITIGATE
    • Real-time automatic label detection on food trays
    • Real-time interactive image segmentation
    • Secure Tropos
    • SESAME
    • The VisiOn project
    • Word sketches
  • Mesh saliency

Mesh saliency via spectral processing

Mesh saliency is a measure that attempts to capture the importance of a point or local region on a 3D surface mesh in a similar way to human visual perception. The human perceptual system is able to detect visual saliency extraordinarily quickly and reliably, even for novel scenes. The term “saliency” is often considered in the context of bottom-up computations. However, development of bottom-up computational models which simulate this basic intelligent behaviour remains a profound challenge in computer vision and graphics.

Mesh saliency detection methods usually merge perceptual criteria inspired by low-level human visual cues with mathematical measures based on discrete differential geometry, such as curvatures. Overall, however, saliency must efficiently and effectively reflect perceptually important regions on a 3Dmesh, which curvature alone may not capture. While mesh saliency may not outperform mesh curvature as a surface analysis tool in all applications, it provides an alternative approach when processing 3D meshes, based on perceptual mechanisms rather than purely local geometric measures of shape.

Project aims

This project proposes a novel method for detecting mesh saliency, a perceptuallybased measure of the importance of a local region on a 3D surface mesh. Our method incorporates global considerations by making use of spectral attributes of the mesh, unlike most existing methods which are typically based on local geometric cues. We first consider the properties of the log- Laplacian spectrum of the mesh. Those frequencies which show differences from expected behaviour capture saliency in the frequency domain. Information about these frequencies is considered in the spatial domain at multiple spatial scales to localise the salient features and give the final salient areas.

A collage of images of people, animals, fish, and objects such as chairs in heat responsive colours depicting mesh saliency

Project impact and findings

The effectiveness and robustness of our approach is demonstrated by comparisons to previous approaches on a range of test models. The benefits of the proposed method are further evaluated in applications such as mesh simplification, mesh segmentation, and scan integration, where we show how incorporating mesh saliency can provide improved results.

Research team

Dr Ran Song

 

Output

Partners

Back to top
  • Facebook
  • Twitter
  • Instagram
  • TikTok
  • YouTube
  • LinkedIn icon

Contact us

University of Brighton
Mithras House
Lewes Road
Brighton
BN2 4AT

Main switchboard 01273 600900

Course enquiries

Sign up for updates

University contacts

Report a problem with this page

Quick links Quick links

  • Courses
  • Open days
  • Order a prospectus
  • Academic departments
  • Academic staff
  • Professional services departments
  • Jobs
  • Privacy and cookie policy
  • Accessibility statement
  • Libraries
  • Term dates
  • Maps
  • Graduation
  • Site information
  • Online shop
  • COVID-19

Information for Information for

  • Current students
  • International students
  • Media/press
  • Careers advisers/teachers
  • Parents/carers
  • Business/employers
  • Alumni/supporters
  • Suppliers
  • Local residents