Title:
肌評価方法及び肌評価装置
Document Type and Number:
Japanese Patent JP4739746
Kind Code:
B2
Abstract:
A part of the image input from a fingerprint sensor (S 1 ) is cut out (S 3 ), and a fundamental frequency is calculated by using second-order linear predictive analysis (S 5 ). A total value S of the fundamental frequencies in a direction x and a direction y is calculated so as to be used as a grading scale of fineness in texture (S 7 ). A prepared threshold is compared with the grading scale S obtained at S 7 , and the fineness in texture of a skin condition is evaluated in three grades (S 9 to S 17 ). Further, a ratio of the fundamental frequency of the subject image in the direction x to the fundamental frequency in the direction y is calculated so as to be used as a grading scale relating to texture running (S 19 ). Similar grading scales are obtained by rotating the image, and the texture running is determined into two grades based on the grading scales (S 31 to S 35 ). Results of determining the fineness in texture and the texture running are displayed on a display screen (S 37 ).
Inventors:
Hideyo Takeuchi
Hoguro
Tatsuki Yoshimine
Hoguro
Tatsuki Yoshimine
Application Number:
JP2004375392A
Publication Date:
August 03, 2011
Filing Date:
December 27, 2004
Export Citation:
Assignee:
DDS Inc.
International Classes:
A61B5/107; A61B5/00
Domestic Patent References:
| JP2082947A | ||||
| JP7116146A | ||||
| JP4305113A | ||||
| JP2006081847A | ||||
| JP2004237087A | ||||
| JP2003319910A | ||||
| JP2002269211A |
Attorney, Agent or Firm:
Hisashi Yamamoto