{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,10,22]],"date-time":"2023-10-22T06:10:53Z","timestamp":1697955053089},"reference-count":11,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2007,3,21]],"date-time":"2007-03-21T00:00:00Z","timestamp":1174435200000},"content-version":"vor","delay-in-days":7384,"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":[[1987,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>This paper discusses a newly developed high\u2010speed image filtering processor, aiming at high\u2010accuracy and high\u2010speed isotropic filtering. The isotropic filtering is made efficient by the following features.<\/jats:p><jats:p>(1) The image is sampled over the triangular lattice and processed by the hexagonal finite\u2010impulse response (FIR) filter. (2) The filter is realized by the Fermat number transform (FNT) with hexagonal sectioning procedure.<\/jats:p><jats:p>The high\u2010speed hardware has the following features: (1) FNT\u2010butterfly circuit using 3\u2010input adders; and (2) multiple processing by the memory structure with three\u2010level hierarchies. By those features, the proposed system executes the filtering in approximately 0.5 s for an image composed of 512 \u00d7 512 pixels in triangular lattice (512 \u00d7 591 pixels in square lattice) by a hexagonal FIR filter with edge distance of 15 (17 \u00d7 17 in square lattice\u2010square FIR filter). This paper describes the features, architecture and operation of the proposed system. Then the result of correcting the isotropic blur is presented, indicating that a practically sufficient accuracy is obtained.<\/jats:p>","DOI":"10.1002\/scj.4690180107","type":"journal-article","created":{"date-parts":[[2007,7,7]],"date-time":"2007-07-07T12:32:04Z","timestamp":1183811524000},"page":"67-78","source":"Crossref","is-referenced-by-count":2,"title":["A fast image filtering processor using the fermat number transform"],"prefix":"10.1002","volume":"18","author":[{"given":"Nobumoto","family":"Yamane","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yoshitaka","family":"Morikawa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroshi","family":"Hamada","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2007,3,21]]},"reference":[{"issue":"1","key":"e_1_2_1_2_2","first-page":"90","article-title":"Recent trends in image processors","volume":"67","author":"Sakagamai","year":"1984","journal-title":"Proc. I. E. C. E., Japan"},{"issue":"4","key":"e_1_2_1_3_2","first-page":"421","article-title":"Sampling of stationary stochastic variable in multidimensional space","volume":"42","author":"Miyakawa H.","year":"1959","journal-title":"Proc. I. E. C. E., Japan"},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1109\/PROC.1979.11356"},{"issue":"4","key":"e_1_2_1_5_2","first-page":"289","article-title":"High\u2010speed convolution of two\u2010dimensional signals sampled by triangular lattice","volume":"65","author":"Morikawa Y.","year":"1982","journal-title":"Trans. (A), I. E. C. E., Japan"},{"issue":"7","key":"e_1_2_1_6_2","first-page":"725","article-title":"Realization of circular FIR filter by vertical hexagonal sectioning","volume":"65","author":"Morikawa Y.","year":"1982","journal-title":"Trans. (A), I. E. C. E., Japan"},{"key":"e_1_2_1_7_2","doi-asserted-by":"publisher","DOI":"10.1109\/PROC.1975.9791"},{"key":"e_1_2_1_8_2","doi-asserted-by":"publisher","DOI":"10.1109\/TCS.1975.1084073"},{"key":"e_1_2_1_9_2","doi-asserted-by":"publisher","DOI":"10.1080\/713820148"},{"issue":"3","key":"e_1_2_1_10_2","doi-asserted-by":"crossref","first-page":"215","DOI":"10.1109\/TASSP.1976.1162806","article-title":"Hardware realization of a Fermat number transform","volume":"24","author":"McClellan J. H.","year":"1976","journal-title":"I. E. E. E. Trans. Acoust. Speech and Signal Process."},{"issue":"1","key":"e_1_2_1_11_2","first-page":"81","article-title":"Hardware realization of high\u2010speed butterfly for the maximum length Fermat number transform","volume":"66","author":"Morikawa Y.","year":"1983","journal-title":"Trans. (D), I. E. C. E., Japan"},{"key":"e_1_2_1_12_2","volume-title":"Theory and Application of Digital Signal Processing, Englewood Cliffs","author":"Rabiner L. R.","year":"1974"}],"container-title":["Systems and Computers in Japan"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fscj.4690180107","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/scj.4690180107","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,21]],"date-time":"2023-10-21T03:29:39Z","timestamp":1697858979000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/scj.4690180107"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1987,1]]},"references-count":11,"journal-issue":{"issue":"1","published-print":{"date-parts":[[1987,1]]}},"alternative-id":["10.1002\/scj.4690180107"],"URL":"https:\/\/doi.org\/10.1002\/scj.4690180107","archive":["Portico"],"relation":{},"ISSN":["0882-1666","1520-684X"],"issn-type":[{"value":"0882-1666","type":"print"},{"value":"1520-684X","type":"electronic"}],"subject":[],"published":{"date-parts":[[1987,1]]}}}