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專利名稱 Method for achieving multiple beam radiation vertical orthogonal field coverage by means of multiple feed-in dish antenna (藉由多饋入碟型天線來達成多波束輻射垂直正交場型覆蓋之方式)
創作型式 發明
專利證號 US9948008B2
國別 美國
獲證日期 2018/04/17
專利摘要 A method for extracting features of a thermal image is provided. The method includes: reading a thermal image, and dividing the thermal image into a plurality of block images; and extracting a histogram of oriented gradient (HOG) feature histogram from each of the plurality of block images, and transforming the HOG feature histogram of each of the plurality of block images into a symmetric weighting HOG (SW-HOG) feature histogram. The SW-HOG feature histogram is obtained by multiplying a histogram of gradient intensity distribution by a block weighting. The method increases weightings of blocks which cover human contours and reduces weightings of blocks of an internal region of a human appearance through analyzing thermal lightness difference of regions within blocks, to reduce the influence of clothes in the internal region and the influence of the background region.

IPC國際分類號

G06K000900
聯絡人 王淳右
電話 #329566
EMAIL f437frank@ncsist.org.tw