公开(公告)号：US10728508B2

公开(公告)日：2020-07-28

申请号：US16534189

申请日：2019-08-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Chiharu Tsubota ,  Kazuhiro Minami

IPC: G03B21/60 ,  G03B21/604 ,  H04N9/31 ,  H04N13/312 ,  G03B21/20

Abstract: A projection system projects an image corresponding to a shape of an object. The projection system includes a non-visible light projection unit, an imager, an image generation unit, and a visible-light projection unit. The non-visible light projection unit projects a predetermined non-visible light image with non-visible light having predetermined polarized light as a main component, onto the object and a background member that reflects the non-visible light while the background member maintains the predetermined polarized light. The imager images a non-visible light image reflected by the object and the background member while blocking the non-visible light of the predetermined polarized light, and generates imaged data. The image generation unit measures the shape of the object based on the imaged data, and generates image data according to a measurement result. The visible-light projection unit projects an image shown by the image data, onto the object with visible light.

公开(公告)号：US11218677B2

公开(公告)日：2022-01-04

申请号：US16270740

申请日：2019-02-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Chiharu Tsubota ,  Ryuji Fuchikami ,  Kazuhiro Minami

IPC: H04N5/30 ,  H04N9/31 ,  G06T7/521 ,  G06F3/01 ,  G06F3/041 ,  G06F3/042 ,  G01S7/48 ,  G01S17/06 ,  G03B21/26 ,  G01S17/89 ,  G01B11/25 ,  G01S7/499 ,  G03B17/54 ,  G01S17/86

Abstract: A projection system for projecting an image comprises: a visible light projector that projects the image with visible light; an invisible light projector that projects an invisible light image onto the object with invisible light; an imaging device that captures the invisible light image projected from the invisible light projector; and a controller that obtains information regarding reflected light from the object while obtaining three-dimensional measurements of the object to control the image, based on a capture image. The invisible light image includes a bright region and a dark region having a light amount less than the light amount of the bright region. The invisible light projector emits the invisible light to cause the light amount of the dark region in the invisible light image to be more than or equal to an offset value.