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This is obtained by using a \u201csecond generation\u201d compression scheme which adaptively uses different psychovisual techniques to reduce the image bitrate. Each image is analysed on a block by block basis and the most appropriate coding strategy is selected according to the characteristics of the current block and of surrounding blocks. Taking into account surrounding blocks leads to improved visual image quality. Another important feature of the proposed approach is that part of the approximation job is done at the receiver thus further reducing the bit rte needed for transmission.<\/jats:p>","DOI":"10.1002\/ett.4460090105","type":"journal-article","created":{"date-parts":[[2008,9,12]],"date-time":"2008-09-12T16:37:29Z","timestamp":1221237449000},"page":"37-45","source":"Crossref","is-referenced-by-count":0,"title":["Still picture compression based on psychovisual image\u2010pattern coding"],"prefix":"10.1002","volume":"9","author":[{"given":"Lorenzo","family":"Favalli","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alessandro","family":"Mecocci","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andrea","family":"Poli","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2008,9,12]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1109\/PROC.1985.13184"},{"key":"e_1_2_1_3_2","doi-asserted-by":"publisher","DOI":"10.1109\/PROC.1980.11647"},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1109\/PROC.1981.11971"},{"issue":"5","key":"e_1_2_1_5_2","first-page":"798","article-title":"Signal compression: technology targets and research direction","volume":"10","author":"Jayant N.","year":"1992","journal-title":"JSAC"},{"key":"e_1_2_1_6_2","doi-asserted-by":"crossref","unstructured":"N.Ahmed T.Natarajan K.Rao:Discrete cosine transform. \u201cIEEE Trans on Comp.\u201d Jan.1974 p.90\u201393.","DOI":"10.1109\/T-C.1974.223784"},{"key":"e_1_2_1_7_2","doi-asserted-by":"publisher","DOI":"10.1109\/31.1723"},{"volume-title":"Digital picture processing","year":"1981","author":"Kak Rosenfeld","key":"e_1_2_1_8_2"},{"key":"e_1_2_1_9_2","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4899-6950-7"},{"key":"e_1_2_1_10_2","doi-asserted-by":"publisher","DOI":"10.1109\/TCOM.1983.1095851"},{"key":"e_1_2_1_11_2","unstructured":"M.Kocher M.Kunt:Image data compression by contour\u2010texture modelling. 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