{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,10,26]],"date-time":"2023-10-26T06:10:23Z","timestamp":1698300623415},"reference-count":30,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2008,9,12]],"date-time":"2008-09-12T00:00:00Z","timestamp":1221177600000},"content-version":"vor","delay-in-days":4883,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Trans Emerging Tel Tech"],"published-print":{"date-parts":[[1995,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>An efficient encoding scheme based on an improved Laplacian pyramid is proposed for <jats:italic>lossless\/lossy<\/jats:italic> compression aimed at archival and <jats:italic>progressive<\/jats:italic> transmission of grayscale medical images. The major assets are: pyramid entropy is decreased by adopting two different filters for <jats:italic>reduction<\/jats:italic> and <jats:italic>expansion;<\/jats:italic> encoding priority is given to major details through a hierarchical <jats:italic>content\u2010driven<\/jats:italic> decision rule; the binary <jats:italic>quad\u2010tree<\/jats:italic> of <jats:italic>split\/unsplit<\/jats:italic> nodes is blockwise <jats:italic>zig\u2010zag<\/jats:italic> scanned and <jats:italic>run\u2010length<\/jats:italic> encoded. Error <jats:italic>feedback<\/jats:italic> along the levels of the Laplacian pyramid ensures control of the maximum absolute error, up to fully reversible reconstruction capability, and enhances the efficiency and the robustness of the whole scheme. While coding results on the standard greyscale image <jats:italic>Lena<\/jats:italic> are pretty competitive with the most recent literature, reversible compression of scanned RX images achieves ratios of about 1:5, establishing improvements over DPCM schemes; high\u2010quality lossy versions at 0.15 bit\/pel outperform JPEG both visually and quantitatively. Moreover, <jats:italic>no floating\u2010point<\/jats:italic> computation is required in the algorithm, and <jats:italic>on\u2010line<\/jats:italic> compression and reconstruction are feasible on general\u2010purpose terminals.<\/jats:p>","DOI":"10.1002\/ett.4460060310","type":"journal-article","created":{"date-parts":[[2008,9,12]],"date-time":"2008-09-12T14:09:21Z","timestamp":1221228561000},"page":"301-310","source":"Crossref","is-referenced-by-count":1,"title":["Content\u2010driven pyramid compression of medical images for error\u2010free archival and progressive transmission"],"prefix":"10.1002","volume":"6","author":[{"given":"Franco","family":"Lotti","sequence":"first","affiliation":[]},{"given":"Bruno","family":"Aiazzi","sequence":"additional","affiliation":[]},{"given":"Stefano","family":"Baronti","sequence":"additional","affiliation":[]},{"given":"Andrea","family":"Casini","sequence":"additional","affiliation":[]},{"given":"Luciano","family":"Alparone","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2008,9,12]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1109\/42.158947"},{"issue":"1","key":"e_1_2_1_3_2","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1109\/36.285185","article-title":"Reversible image compression bounded by noise","volume":"32","author":"Roger R. 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