Conference
Towards Continuous Image Representations
| العنوان: | Towards Continuous Image Representations |
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| المؤلفون: | Labrosse, Frédéric, Willis, Philip |
| المساهمون: | Skala, Václav |
| بيانات النشر: | University of West Bohemia |
| سنة النشر: | 2001 |
| المجموعة: | University of West Bohemia Digital Library / Digitální knihovna Západočeské univerzity v Plzni |
| مصطلحات موضوعية: | nepřerušovaná kontura, obrazové reprezentace, subpixelová přesnost, continuous contour, image representations, snake, sub-pixel accuracy |
| الوصف: | We propose in this paper a first step towards the creation of continuous, i.e. vectorial, repre-sentations that are useful for image manipulation. Such pixel-free representations have many advantages and are amenable to operations which are difficult or imprecise with pixels. For exam-ple, they can readily be rendered at different resolutions and they are a better choice for ultra-high resolution applications. We explore an approach in which images are decomposed into structural regions that correspond to specified image characteristics. This is done using relaxation labelling. Information taken at different stages during the relaxation is used to extract sub-pixel accurate continuous structural contours. This accuracy is obtained by using snakes as well as the blur present in images (because of the acquisition process). We propose solutions, adapted to our context, to often mentioned problems of snakes, namely initialisation, parameter determination, and instability. The interior of structural regions is represented to allow the rendering of images as close as possible to the original ones. We propose here two schemes, one using a single colour for each region, the second sampling the original image to allow smoothly varying colour in each region. |
| نوع الوثيقة: | conference object |
| وصف الملف: | 8 s.; application/pdf |
| اللغة: | English |
| ردمك: | 978-80-7082-713-0 80-7082-713-0 |
| تدمد: | 1213-6972 |
| Relation: | WSCG '2001: Conference proceedings; WSCG '2001: Conference proceedings: The 9-th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2001: University of West Bohemia, Plzen, Czech Republic, February 5.-9., 2001, p. 206-213.; 80-7082-713-0; http://wscg.zcu.cz/wscg2001/Papers_2001/R57.ps.gz; http://hdl.handle.net/11025/11271 |
| الاتاحة: | http://hdl.handle.net/11025/11271 http://wscg.zcu.cz/wscg2001/Papers_2001/R57.ps.gz |
| Rights: | © University of West Bohemia ; openAccess |
| رقم الانضمام: | edsbas.5C4D1A9 |
| قاعدة البيانات: | BASE |
| ردمك: | 9788070827130 8070827130 |
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| تدمد: | 12136972 |