Fast Argument Quantization
2013 (English)In: IEEE signal processing magazine (Print), ISSN 1053-5888, E-ISSN 1558-0792, Vol. 30, no 6, 169-172 p.Article in journal, Editorial material (Refereed) Published
Aquantized low-resolution argument of a complex number or two-dimensional vector is required in many digital signal processing algorithms. Examples include APSK code demodulation for which it may be used to evaluate the Voronoi diagram; low-level processing for many computer vision methods that exploit histograms of gradient sample arguments, e.g., SIFT and HOG; and phase tracking/frequency estimation for which it may be used as a low-cost phase approximation. Often, such quantized arguments will have to be computed many times and under real-time constraints. Therefore, efficient solutions to these calculations are of interest.
Place, publisher, year, edition, pages
IEEE Signal Processing Society, 2013. Vol. 30, no 6, 169-172 p.
Complex number, Digital signal processing algorithms, Low resolution, Phase approximations, Phase tracking, Real time constraints, Voronoi diagrams
IdentifiersURN: urn:nbn:se:kth:diva-133476DOI: 10.1109/MSP.2013.2276531ISI: 000328502000022ScopusID: 2-s2.0-84887008984OAI: oai:DiVA.org:kth-133476DiVA: diva2:661854
QC 201311052013-11-052013-11-052014-01-20Bibliographically approved