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Title:
DISTANCE ESTIMATION DEVICE, DISTANCE ESTIMATION METHOD, AND DISTANCE ESTIMATION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/240864
Kind Code:
A1
Abstract:
An acquisition unit (15a) acquires sensor values that are outputted by a sensor that measures the relative movement of the head or an eyeball of a user that is visually searching for an object that is on a flat surface. An estimation unit (15b) estimates the distance between the user and the searched flat surface using the maximum value of the amount of change when the rate of change of the sensor values acquired during a period of time that is equal to or greater than a prescribed threshold value is greatest.

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Inventors:
YAMASHITA JUMPEI (JP)
KOYA HIDETAKA (JP)
NAKAJIMA HAJIME (JP)
Application Number:
PCT/JP2019/021856
Publication Date:
December 03, 2020
Filing Date:
May 31, 2019
Export Citation:
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Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G01C3/06; A61B3/113; G06F3/038
Foreign References:
JP2016224691A2016-12-28
JPH05146408A1993-06-15
JP2018136989A2018-08-30
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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