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   -> Volume 4, Issue 2


Preprint: SPIE reprints available from Jim Scholl
 
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jfs@Atrax.risc.rockwell.com (Jim Scholl)
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PostPosted: Mon Dec 02, 2002 5:42 pm    
Subject: Preprint: SPIE reprints available from Jim Scholl
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Preprint: SPIE reprints available from Jim Scholl

Hello wavepeople,

I have two (2) reprints available from a couple of SPIE conferences.
If anybodywants a copy of one or both of these then e-mail me your
SURFACE mail address; these are not in electronic form at all.

Paper 1: reprint from "Wavelet Applications in Signal and Image Processing II,"
SPIE volume 2303, 27-29 July 1994, San Diego, California.

Title: Audio signal compression with circular wavelet packets

Authors: J. F. Scholl and D. Rogovin

Abstract: We have successfully compressed audio signals using wavelet packets
based on a recently developed fast wavelet transform (FWT) scheme
using circular convolution with an adaptive hybrid filter / basis
system. This algorithm gives perfect reconstruction of the data;
edge effects are removed entirely. As a result, the quality of audio
compression is much improved. To illustrate this, we present results
from our comparison study where we compressed a test signal using
these 'circular wavelet packets' and wavelet packets based on
the standard FWT [i.e. with symmetric data padding]

Paper 2: reprint from "Visual Communications and Image Processing '94," SPIE
volume 2308, 25-29 September 1994, Chicago, Illinois.

Title: Image enhancement of the galaxy VV371c using the 2D fast wavelet
transform.

Author: James F. Scholl

Abstract: The fast wavelet transform (FWT) for images developed by Mallat is a
useful and powerful tool for image processing, with its main
applications being compression, feature extraction, and image
enhancement. In particular, since this algorithm segments an image
with respect to both spatial frequency and orientation, image
enhancement becomes more precise and efficient. This idea is
demonstrated by the removal of background noise and flaws from two
digitized images of the faint galaxy VV371c. This object was first
studied in the early 1980's using older and less sophisticated
technologies and image processing techniques. We present results of
the wavelet based image analysis of VV371c which yield new conclusions
as to the galaxy's structure and morphological classification.

Jim Scholl
Rockwell Science Center
1049 Camino Dos Rios
Thousand Oaks, CA 91360

Ph: (805) 373-4277
e-mail: jfs@risc.rockwell.com
All times are GMT + 1 Hour
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