Abstract
This poster presents novel methods for determining if dither is needed when reducing the bit depth of a one dimensional digital signal. These are statistical based methods in both the time and frequency domains, and are based on determining whether the quantization noise with no dither added is white. If this is the case, then no undesired harmonics are added in the quantization or re-quantization process. Experiments showing the effectiveness of the methods with both synthetic and real one dimensional signals are presented.
Keywords
Dither, harmonics, noise
Subject Categories
Information measurement
Disciplines
Engineering
Publisher
Bernard M. Gordon Center for Subsurface Sensing and Imaging Systems (Gordon-CenSSIS)
Publication Date
2006
Rights Holder
Center for Subsurface Imaging and Systems
Permanent URL
Recommended Citation
Benítez-Quiroz, Charlos Fabián and Hunt, Shawn D., "Determining the Need for Dither When Re-Quantizing a 1-D Signal" (2006). Research Thrust R2 Presentations. Paper 16. http://hdl.handle.net/2047/d10008342
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Notes
Poster presented at the 2006 Thrust R2C Multi Spectral Discrimination Methods Conference