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The horizontal and vertical motion of specific velocities are extracted by spatiotemporal filters applied to the analytic signal. Although the impulse response function of a temporal filter for the analytic signal is complex, that of a spatial filter becomes real. The 2\u2010D motion component is computed from the extracted horizontal motion and the vertical motion. The tracking window is set to the high motion component area. Object tracking is performed by estimating the motion through an \u03b1\u2010\u03b2\u2010\u03b3 filter on the window.<\/jats:p>","DOI":"10.1002\/scj.4690251003","type":"journal-article","created":{"date-parts":[[2007,7,8]],"date-time":"2007-07-08T01:43:57Z","timestamp":1183859037000},"page":"24-35","source":"Crossref","is-referenced-by-count":0,"title":["Motion extraction by spatiotemporal filtering of analytic signal derived from images and moving area tracking"],"prefix":"10.1002","volume":"25","author":[{"given":"Kyoji","family":"Tanaka","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yoshiaki","family":"Shirai","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2007,3,21]]},"reference":[{"key":"e_1_2_1_2_2","article-title":"The extraction of motion area using spatiotemporal filters and its application toward object tracking. 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