Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

Hierarchical descriptors for nonstationary 1 and 2 dimensional signal processing

Tools
- Tools
+ Tools

Calway, Andrew David and Wilson, Roland (1987) Hierarchical descriptors for nonstationary 1 and 2 dimensional signal processing. University of Warwick. Department of Computer Science. (Department of Computer Science research report). (Unpublished)

[img]
Preview
PDF
WRAP_cs-rr-108.pdf - Other - Requires a PDF viewer.

Download (25Mb) | Preview

Request Changes to record.

Abstract

The representation of signals with important local properties is considered. These signals have a degree of nonstationarity which is dependent upon the amount of localisation. Signal descriptors which seek to represent such signals must correspond in scale to the local properties in order to provide an efficient representation. A review is given of various methods that have been adopted. Although some of these have been used in specific applications, a general and computationally efficient representation is not available. A new descriptor is presented which seeks to fulfil this requirement. It combines the time and frequency representations of a signal in an optimal way by using basis functions which are maximally concentrated in both domains. This corresponds to representing the local properties of the signal. The descriptor adopts a hierarchical structure which incorporates multi-resolution in both domains so that the required amount of localisation can be determined for a given signal. This enables the descriptor to be generally applied since it is consistent with the concept of a nonstationary signal. Results of initial experiments on the descriptor are presented and the report concludes with a discussion of future investigations.

Item Type: Report
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science > Computer Science
Library of Congress Subject Headings (LCSH): Signal processing -- Digital techniques
Series Name: Department of Computer Science research report
Publisher: University of Warwick. Department of Computer Science
Official Date: October 1987
Dates:
DateEvent
October 1987Completion
Number: Number 108
DOI: CS-RR-108
Institution: University of Warwick
Theses Department: Department of Computer Science
Status: Not Peer Reviewed
Publication Status: Unpublished
Publisher Statement: A.D.&nbsp;Calway and R.G.&nbsp;Wilson, &ldquo;A General Multi-Resolution Signal Descriptor and its Application to Image Analysis&rdquo;, <i>EUSIPCO-88 (1988 : Grenoble, France) Signal Processing IV : Theories and Applications</i>, North-Holland, Amsterdam (1988)
Related URLs:
  • Organisation

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics

twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us