Title:
操作検出装置、操作検出方法、及び映像表示システム
Document Type and Number:
Japanese Patent JP6538871
Kind Code:
B2
Abstract:
A manipulation detection device includes a first manipulation detection process based on detection of light emission of an electronic pen (a first manipulation object) and a second manipulation detection process based on detection of a shadow of a finger (a second manipulation object) by radiation of illumination light. An image sensor captures an image of the electronic pen and an image of the finger, and image signal processing units perform a contrast adjustment of the captured image. Here, a state of the contrast adjustment performed by the image signal processing unit differs between the captured image of the electronic pen and the captured image of the finger. Manipulation detecting units execute a manipulation detection process for the electronic pen and the finger using the captured image which has undergone the contrast adjustment.
Inventors:
Niikura Yudai
Takashi Matsubara
Naoki Mori
Takashi Matsubara
Naoki Mori
Application Number:
JP2017549949A
Publication Date:
July 03, 2019
Filing Date:
November 13, 2015
Export Citation:
Assignee:
Maxell Co., Ltd.
International Classes:
G06F3/042; G06F3/041; G06T5/00
Domestic Patent References:
| JP2010515170A | ||||
| JP2016184850A | ||||
| JP2016186674A |
Foreign References:
| US20010030668 |
Attorney, Agent or Firm:
Aoritsu patent business corporation