Abstract
Wavelet techniques are based upon the idea of coding signals or images in terms of basis functions which carry information about position and scale, rather than pure frequency content as in traditional Fourier (spectral) approaches. Wavelet coding has proved to be a highly efficient way of storing data and allows far more effective processing (such as denoising) than can be achieved with normal digital filters.
The introduction of the enhanced compressed wavelet (ECW) digital image format and the development of associated software tools which allow the easy storage and manipulation of extremely large images has a number of implications for the acquisition, storage and handling of all forms of imagery.
This paper explains the basic theory behind wavelet image coding, discusses the limitations inherent in the "compression" within the approach and examines some of the potential impacts of the ECW format on archiving and data manipulation/exploration. The power and flexibility of the approach is illustrated for the particular application of the close range and high-resolution recording of heritage structures.
The introduction of the enhanced compressed wavelet (ECW) digital image format and the development of associated software tools which allow the easy storage and manipulation of extremely large images has a number of implications for the acquisition, storage and handling of all forms of imagery.
This paper explains the basic theory behind wavelet image coding, discusses the limitations inherent in the "compression" within the approach and examines some of the potential impacts of the ECW format on archiving and data manipulation/exploration. The power and flexibility of the approach is illustrated for the particular application of the close range and high-resolution recording of heritage structures.
Original language | English |
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Publication status | Published - 5 Apr 2002 |
Event | RSPSoc Thompson Symposium, Loughborough University - Loughborough, United Kingdom Duration: 5 Apr 2002 → 7 Apr 2002 |
Conference
Conference | RSPSoc Thompson Symposium, Loughborough University |
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Country/Territory | United Kingdom |
City | Loughborough |
Period | 5/04/02 → 7/04/02 |