公开(公告)号：US20250012559A1

公开(公告)日：2025-01-09

申请号：US18894097

申请日：2024-09-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masaharu FUKAKUSA ,  Takahiro NIBU ,  Mayu TABA

IPC: G01B11/02 ,  G01B11/25

Abstract: A distance measuring device includes: a first imager and a second imager provided so as to be aligned such that fields of view thereof overlap each other; a projector configured to project pattern light in which a plurality of types of light regions having wavelength bands different from each other are distributed in a predetermined pattern, onto a range where the fields of view overlap; and a measurer configured to measure a distance to an object surface onto which the pattern light is projected, by performing a stereo correspondence point searching process on images respectively acquired by the first imager and the second imager.

公开(公告)号：US20240378740A1

公开(公告)日：2024-11-14

申请号：US18779473

申请日：2024-07-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Mayu TABA ,  Masaharu FUKAKUSA

IPC: G06T7/593 ,  G06T7/521 ,  G06T7/80 ,  H04N13/00 ,  H04N13/239 ,  H04N13/246 ,  H04N13/254 ,  H04N13/296

Abstract: A distance measuring device includes: a first imaging part and a second imaging part placed such that fields of view thereof overlap each other; a projector configured to project pattern light to a range where the fields of view overlap; a measurement part configured to measure a distance to an object surface onto which the pattern light is projected, by a stereo correspondence point search process for images from the respective imaging parts; and a controller. The projector includes an imaging adjustment part configured to change an imaging position of the pattern light in an optical axis direction of a projection lens. The controller controls the imaging adjustment part such that a density of the pattern on imaging surfaces of the respective imaging parts is included in a target range.