公开(公告)号：US20240071106A1

公开(公告)日：2024-02-29

申请号：US18350801

申请日：2023-07-12

Applicant: AISIN CORPORATION

Inventor： Kosuke KITO ,  Ryohei FUWA ,  Takayuki NAKAGOME ,  Asami YAMAZAKI

IPC: G06V20/59 ,  G06T7/73

CPC classification number: G06V20/593 ,  G06T7/73 ,  G06T2207/10028 ,  G06T2207/30268

Abstract: An occupant detection device includes: an acquisition unit configured to acquire, based on an intensity of a reflected wave generated when a transmission wave transmitted toward an interior of a moving body is reflected by an object present in the interior, point cloud information indicating a three-dimensional-coordinate position of the object moving in the interior as a point cloud including a plurality of detection points; a generation unit configured to generate, based on the point cloud information, a seat row map for each seat row including a plurality of seating regions, the seat row map indicating a distribution of the detection points in a plane region corresponding to an arrangement direction of the plurality of seating regions and a height direction of the moving body; a setting unit configured to set, on the seat row map, an upper end line along an upper end portion of a plane point cloud including two or more of the detection points; and an estimation unit configured to estimate the number of occupants for each seat row based on a shape feature of the upper end line.