{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,10,23]],"date-time":"2023-10-23T04:59:02Z","timestamp":1698037142203},"reference-count":16,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2007,3,22]],"date-time":"2007-03-22T00:00:00Z","timestamp":1174521600000},"content-version":"vor","delay-in-days":6289,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Systems &amp; Computers in Japan"],"published-print":{"date-parts":[[1990,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>It is important to improve the quality of NMR images, since this significantly affects medical diagnosis. This paper describes an image processing to improve NMR images. It is important for such improvements to utilize the image property of interest. This paper shows that noises in an NMR image have a Rayleigh distribution (e. g., they have a spike shape). To reduce this type of noise, this paper proposes an adaptive nonlinear digital filter which is adaptive to isolated status of a noise based on its standard\u2010deviation distribution. This standard deviation of the noises is another feature of the NMR image. The usefulness of the proposed filter is confirmed by comparing this with conventional filters. Significant improvements of image quality using this filter are demonstrated by applying it to an NMR image of a human head.<\/jats:p>","DOI":"10.1002\/scj.4690211202","type":"journal-article","created":{"date-parts":[[2007,7,7]],"date-time":"2007-07-07T19:13:01Z","timestamp":1183835581000},"page":"9-15","source":"Crossref","is-referenced-by-count":1,"title":["Improvements of nmr image quality using adaptive nonlinear filter"],"prefix":"10.1002","volume":"21","author":[{"given":"Hidenobu","family":"Itagaki","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2007,3,22]]},"reference":[{"key":"e_1_2_1_2_2","volume-title":"Digital Image Processing","author":"Rosenfeld A.","year":"1978"},{"key":"e_1_2_1_3_2","volume-title":"Introduction to Computer Image Processing","author":"Tamura Hideyuki","year":"1985"},{"key":"e_1_2_1_4_2","volume-title":"Image Processing Handbook","author":"Onoe Morio","year":"1985"},{"key":"e_1_2_1_5_2","doi-asserted-by":"crossref","unstructured":"ShizuoNakamura.Enhancement and smoothing process. 0 plus E No. 75 pp.83\u2013101(1986).","DOI":"10.1353\/qkh.1986.0014"},{"key":"e_1_2_1_6_2","doi-asserted-by":"publisher","DOI":"10.1088\/0022-3735\/19\/10\/022"},{"issue":"5","key":"e_1_2_1_7_2","first-page":"327","article-title":"Improvement of IR image quality using nonlinear digital filter","volume":"15","author":"Hachimura Kozaburo","year":"1977","journal-title":"Japanese Journal of MEBE"},{"key":"e_1_2_1_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/0146-664X(79)90102-3"},{"key":"e_1_2_1_9_2","volume-title":"NMR Medicine","author":"Magnetic Resonance Medicine Research Committee, Japan","year":"1984"},{"key":"e_1_2_1_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/0022-2364(75)90224-3"},{"key":"e_1_2_1_11_2","doi-asserted-by":"publisher","DOI":"10.1088\/0031-9155\/25\/4\/017"},{"key":"e_1_2_1_12_2","volume-title":"Theory and Clinical Practice of NMR","author":"Japan Radiation Engineers Association","year":"1984"},{"issue":"3","key":"e_1_2_1_13_2","first-page":"631","article-title":"Compensation of phase\u2010distortion in MRI and its application to blood\u2010flow imaging","volume":"70","author":"Sano Ko'ichi","year":"1987","journal-title":"Trans. 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Sci."}],"container-title":["Systems and Computers in Japan"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fscj.4690211202","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/scj.4690211202","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,22]],"date-time":"2023-10-22T11:01:54Z","timestamp":1697972514000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/scj.4690211202"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1990,1]]},"references-count":16,"journal-issue":{"issue":"12","published-print":{"date-parts":[[1990,1]]}},"alternative-id":["10.1002\/scj.4690211202"],"URL":"https:\/\/doi.org\/10.1002\/scj.4690211202","archive":["Portico"],"relation":{},"ISSN":["0882-1666","1520-684X"],"issn-type":[{"value":"0882-1666","type":"print"},{"value":"1520-684X","type":"electronic"}],"subject":[],"published":{"date-parts":[[1990,1]]}}}