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Comparative evaluation of video watermarking techniques in the uncompressed domain
Thesis (MScEng)--Stellenbosch University, 2012.
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| Format: | Thesis |
| Language: | en_ZA |
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Stellenbosch : Stellenbosch University
2012
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| _version_ | 1867613951269797889 |
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| access_status_str | Open Access |
| author | Van Huyssteen, Rudolph Hendrik |
| author2 | Van Rooyen, G-J. |
| author_browse | Van Huyssteen, Rudolph Hendrik Van Rooyen, G-J. |
| author_facet | Van Rooyen, G-J. Van Huyssteen, Rudolph Hendrik |
| author_sort | Van Huyssteen, Rudolph Hendrik |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (MScEng)--Stellenbosch University, 2012. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/71842 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA |
| last_indexed | 2026-06-10T12:44:18.274Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/71842 Comparative evaluation of video watermarking techniques in the uncompressed domain Van Huyssteen, Rudolph Hendrik Van Rooyen, G-J. Jarnikov, D. Stellenbosch University. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. Video watermarking Copyright protection Data embedding Wavelet transform Fourier transform Singular value decomposition Spatial domain Dissertations -- Electronic engineering Theses -- Electronic engineering Thesis (MScEng)--Stellenbosch University, 2012. ENGLISH ABSTRACT: Electronic watermarking is a method whereby information can be imperceptibly embedded into electronic media, while ideally being robust against common signal manipulations and intentional attacks to remove the embedded watermark. This study evaluates the characteristics of uncompressed video watermarking techniques in terms of visual characteristics, computational complexity and robustness against attacks and signal manipulations. The foundations of video watermarking are reviewed, followed by a survey of existing video watermarking techniques. Representative techniques from different watermarking categories are identified, implemented and evaluated. Existing image quality metrics are reviewed and extended to improve their performance when comparing these video watermarking techniques. A new metric for the evaluation of inter frame flicker in video sequences is then developed. A technique for possibly improving the robustness of the implemented discrete Fourier transform technique against rotation is then proposed. It is also shown that it is possible to reduce the computational complexity of watermarking techniques without affecting the quality of the original content, through a modified watermark embedding method. Possible future studies are then recommended with regards to further improving watermarking techniques against rotation. AFRIKAANSE OPSOMMING: ’n Elektroniese watermerk is ’n metode waardeur inligting onmerkbaar in elektroniese media vasgelê kan word, met die doel dat dit bestand is teen algemene manipulasies en doelbewuste pogings om die watermerk te verwyder. In hierdie navorsing word die eienskappe van onsaamgeperste video watermerktegnieke ondersoek in terme van visuele eienskappe, berekeningskompleksiteit en weerstandigheid teen aanslae en seinmanipulasies. Die onderbou van video watermerktegnieke word bestudeer, gevolg deur ’n oorsig van reedsbestaande watermerktegnieke. Verteenwoordigende tegnieke vanuit verskillende watermerkkategorieë word geïdentifiseer, geïmplementeer en geëvalueer. Bestaande metodes vir die evaluering van beeldkwaliteite word bestudeer en uitgebrei om die werkverrigting van die tegnieke te verbeter, spesifiek vir die vergelyking van watermerktegnieke. ’n Nuwe stelsel vir die evaluering van tussenraampie flikkering in video’s word ook ontwikkel. ’n Tegniek vir die moontlike verbetering van die geïmplementeerde diskrete Fourier transform tegniek word voorgestel om die tegniek se bestandheid teen rotasie te verbeter. Daar word ook aangetoon dat dit moontlik is om die berekeningskompleksiteit van watermerktegnieke te verminder, sonder om die kwaliteit van die oorspronklike inhoud te beïnvloed, deur die gebruik van ’n verbeterde watermerkvasleggingsmetode. Laastens word aanbevelings vir verdere navorsing aangaande die verbetering van watermerktegnieke teen rotasie gemaak. 2012-11-27T13:43:13Z 2012-12-12T08:13:58Z 2012-11-27T13:43:13Z 2012-12-12T08:13:58Z 2012-12 Thesis http://hdl.handle.net/10019.1/71842 en_ZA Stellenbosch University application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Video watermarking Copyright protection Data embedding Wavelet transform Fourier transform Singular value decomposition Spatial domain Dissertations -- Electronic engineering Theses -- Electronic engineering Van Huyssteen, Rudolph Hendrik Comparative evaluation of video watermarking techniques in the uncompressed domain |
| title | Comparative evaluation of video watermarking techniques in the uncompressed domain |
| title_full | Comparative evaluation of video watermarking techniques in the uncompressed domain |
| title_fullStr | Comparative evaluation of video watermarking techniques in the uncompressed domain |
| title_full_unstemmed | Comparative evaluation of video watermarking techniques in the uncompressed domain |
| title_short | Comparative evaluation of video watermarking techniques in the uncompressed domain |
| title_sort | comparative evaluation of video watermarking techniques in the uncompressed domain |
| topic | Video watermarking Copyright protection Data embedding Wavelet transform Fourier transform Singular value decomposition Spatial domain Dissertations -- Electronic engineering Theses -- Electronic engineering |
| url | http://hdl.handle.net/10019.1/71842 |
| work_keys_str_mv | AT vanhuyssteenrudolphhendrik comparativeevaluationofvideowatermarkingtechniquesintheuncompresseddomain |