Region of interest in JPEG

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dc.contributor.authorBarina, David
dc.contributor.authorKlima, Ondřej
dc.contributor.editorSkala, Václav
dc.date.accessioned2022-09-01T07:49:26Z
dc.date.available2022-09-01T07:49:26Z
dc.date.issued2022
dc.description.abstract-translatedThis paper describes three methods to encode a region of interest (ROI) of arbitrary shape in the JPEG standard. The ROI is part of the image encoded with higher quality than the rest of the image. Two of the described methods are based on thresholding of DCT coefficients. The last method is based on the early termination of the entropy coding phase. All methods are fully compatible with existing JPEG decoders. Using ROI, it is possible to reduce the bitrate to only a fraction of the original value. The results in this paper show that thresholding of original DCT coefficients provides superior performance in terms of the PSNR-B index.en
dc.format5 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationWSCG 2022: full papers proceedings: 30. International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision, p. 1-5.en
dc.identifier.doihttps://www.doi.org/10.24132/CSRN.3201.1
dc.identifier.isbn978-80-86943-33-6
dc.identifier.issn2464-4617
dc.identifier.urihttp://hdl.handle.net/11025/49572
dc.language.isoenen
dc.publisherVáclav Skala - UNION Agencyen
dc.rights© Václav Skala - UNION Agencyen
dc.rights.accessopenAccessen
dc.subjectJPEGcs
dc.subjectoblast zájmucs
dc.subjectkomprese obrazucs
dc.subject.translatedJPEGen
dc.subject.translatedregion of interesten
dc.subject.translatedimage compressionen
dc.titleRegion of interest in JPEGen
dc.typekonferenční příspěvekcs
dc.typeconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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