公开(公告)号：US11375909B2

公开(公告)日：2022-07-05

申请号：US16626303

申请日：2018-12-05

Applicant: BOE Technology Group Co., Ltd.

Inventor： Cheng Liu

IPC: A61B5/024 ,  G06T7/90 ,  A61B5/00 ,  A61B5/1455 ,  G06T7/00 ,  G06V10/143

Abstract: A method for determining one or more physiological parameters of a subject. The method includes providing a plurality of images of a vessel of the subject in response to illumination of the vessel to light of different wavelengths; converting each of the plurality of images of the vessel into at least two grayscale images, thereby generating a plurality of first grayscale images of a first wavelength range and a plurality of second grayscale images of a second wavelength range, the first wavelength range and the second wavelength range being different from each other; and determining the one or more physiological parameters of the subject based on at least the plurality of first grayscale images and the plurality of second grayscale images.

公开(公告)号：US20210353167A1

公开(公告)日：2021-11-18

申请号：US16626303

申请日：2018-12-05

Applicant: BOE Technology Group Co., Ltd.

Inventor： Cheng Liu

IPC: A61B5/024 ,  G06T7/90 ,  G06K9/20 ,  G06T7/00 ,  A61B5/00 ,  A61B5/1455

Abstract: A method for determining one or more physiological parameters of a subject. The method includes providing a plurality of images of a vessel of the subject in response to illumination of the vessel to light of different wavelengths; converting each of the plurality of images of the vessel into at least two grayscale images, thereby generating a plurality of first grayscale images of a first wavelength range and a plurality of second grayscale images of a second wavelength range, the first wavelength range and the second wavelength range being different from each other; and determining the one or more physiological parameters of the subject based on at least the plurality of first grayscale images and the plurality of second grayscale images.

公开(公告)号：US10949998B2

公开(公告)日：2021-03-16

申请号：US16474492

申请日：2019-01-16

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cheng Liu

IPC: G06T7/73

Abstract: Embodiments of the disclosure provide an indoor positioning device, a movable device including the same, a method for positioning a movable device in an indoor space and a computer-readable medium. The indoor positioning device includes an imaging unit for capturing image information of at least one of a plurality of luminaires which are located at a top of the indoor space, a storage unit for storing information of a luminaire Voronoi diagram includes a plurality of Voronoi diagram units, each Voronoi diagram unit includes a generator which is located in a projection of a respective luminaire of the plurality of luminaires on a horizontal plane of the indoor space, and a processor for receiving the image information and the information of the luminaire Voronoi diagram, and calculate a position of the imaging unit in the indoor space based on the image information and the information of the luminaire Voronoi diagram.