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Image compression using the one-dimensional discrete pulse transform
Thesis (MSc)--University of Stellenbosch, 2011.
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| Format: | Thesis |
| Language: | en_ZA |
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Stellenbosch : University of Stellenbosch
2011
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| _version_ | 1867614116465606656 |
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| access_status_str | Open Access |
| author | Uys, Ernst Wilhelm |
| author2 | Rohwer, Carl Heinrich |
| author_browse | Rohwer, Carl Heinrich Uys, Ernst Wilhelm |
| author_facet | Rohwer, Carl Heinrich Uys, Ernst Wilhelm |
| author_sort | Uys, Ernst Wilhelm |
| collection | Thesis |
| dc_rights_str_mv | University of Stellenbosch |
| description | Thesis (MSc)--University of Stellenbosch, 2011. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/6466 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA |
| last_indexed | 2026-06-10T12:46:55.727Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2011 |
| publishDateRange | 2011 |
| publishDateSort | 2011 |
| publisher | Stellenbosch : University of Stellenbosch |
| publisherStr | Stellenbosch : University of Stellenbosch |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/6466 Image compression using the one-dimensional discrete pulse transform Uys, Ernst Wilhelm Rohwer, Carl Heinrich Eggers, H. C. University of Stellenbosch. Faculty of Science. Dept. of Physics. Discrete pulse transform LULU-theory Multiresolution analysis Image compression Thesis (MSc)--University of Stellenbosch, 2011. ENGLISH ABSTRACT: The nonlinear LULU smoothers excel at removing impulsive noise from sequences and possess a variety of theoretical properties that make it possible to perform a so-called Discrete Pulse Transform, which is a novel multiresolution analysis technique that decomposes a sequence into resolution levels with a large amount of structure, analogous to a Discrete Wavelet Transform. We explore the use of a one-dimensional Discrete Pulse Transform as the central element in a digital image compressor. We depend crucially on the ability of space-filling scanning orders to map the two-dimensional image data to one dimension, sacrificing as little image structure as possible. Both lossless and lossy image compression are considered, leading to five new image compression schemes that give promising results when compared to state-of-the-art image compressors. AFRIKAANSE OPSOMMING: Die nielineêre LULU gladstrykers verwyder impulsiewe geraas baie goed uit rye en besit verskeie teoretiese eienskappe wat dit moontlik maak om ’n sogenoemde Diskrete Puls Transform uit te voer; ’n nuwe multiresolusie analise tegniek wat ’n ry opbreek in ’n versameling resolusie vlakke wat ’n groot hoeveelheid struktuur bevat, soortgelyk tot ’n Diskrete Golfie Transform. Ons ondersoek of ’n eendimensionele Diskrete Puls Transform as die sentrale element in ’n digitale beeld kompressor gebruik kan word. Ons is afhanklik van ruimtevullende skandeer ordes om die tweedimensionele beelddata om te skakel na een dimensie, sonder om te veel beeld struktuur te verloor. Vyf nuwe beeld kompressie skemas word bespreek. Hierdie skemas lewer belowende resultate wanneer dit met die beste hedendaagse beeld kompressors vergelyk word. 2011-02-04T09:18:51Z 2011-03-14T08:10:04Z 2011-02-04T09:18:51Z 2011-03-14T08:10:04Z 2011-03 Thesis http://hdl.handle.net/10019.1/6466 en_ZA University of Stellenbosch 107 p. : ill. application/pdf Stellenbosch : University of Stellenbosch |
| spellingShingle | Discrete pulse transform LULU-theory Multiresolution analysis Image compression Uys, Ernst Wilhelm Image compression using the one-dimensional discrete pulse transform |
| title | Image compression using the one-dimensional discrete pulse transform |
| title_full | Image compression using the one-dimensional discrete pulse transform |
| title_fullStr | Image compression using the one-dimensional discrete pulse transform |
| title_full_unstemmed | Image compression using the one-dimensional discrete pulse transform |
| title_short | Image compression using the one-dimensional discrete pulse transform |
| title_sort | image compression using the one dimensional discrete pulse transform |
| topic | Discrete pulse transform LULU-theory Multiresolution analysis Image compression |
| url | http://hdl.handle.net/10019.1/6466 |
| work_keys_str_mv | AT uysernstwilhelm imagecompressionusingtheonedimensionaldiscretepulsetransform |