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Экономика Информатика
Article . 2020 . Peer-reviewed
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СЖАТИЕ ИЗОБРАЖЕНИЙ С ИСПОЛЬЗОВАНИЕМ ДИСКРЕТНОГО ПРЕОБРАЗОВАНИЯ ВЕЙЛЯ – ГЕЙЗЕНБЕРГА

СЖАТИЕ ИЗОБРАЖЕНИЙ С ИСПОЛЬЗОВАНИЕМ ДИСКРЕТНОГО ПРЕОБРАЗОВАНИЯ ВЕЙЛЯ – ГЕЙЗЕНБЕРГА

Abstract

Предлагается новый подход к сжатию растровых изображений, основанный на использованиидвухстороннего вещественного дискретного преобразования Вейля – Гейзенберга. Данное преобразованиеявляется ортогональным и строится на основе оптимального сигнального базиса Вейля – Гейзенберга,обладающего наилучшей частотно-временной локализацией. Указанные свойства обеспечиваются за счетвыбора оптимальной функции формирования базисного эталона и наилучшего соотношения егопараметров. Кроме того, для оценивания потенциальных возможностей использования дискретногопреобразования Вейля – Гейзенберга (DWHT) в задачах сжатия были сформулированы основные критерииэффективности сжатия и проведено сравнение DWHT с другими известными ортогональнымипреобразованиями – дискретного косинусного преобразования (DCT) и дискретного преобразованияХартли (DHT). Экспериментально показано, что предложенный метод сжатия на основе DWHT обладаетлучшими характеристиками по всем введенным критериям. Приводятся результаты сравнения трехметодов сжатия в виде таблиц и восстановленных изображений.

Country
Russian Federation
Keywords

радиоэлектроника, косинусное преобразование, преобразование Хартли, кибернетика, обработка изображений, преобразования Вейля-Гейзенберга, сжатие, техника

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    popularity
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    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green
gold