公开(公告)号：US20240420489A1

公开(公告)日：2024-12-19

申请号：US18785781

申请日：2024-07-26

Applicant: Beckman Coulter, Inc.

Inventor： Bart J. WANDERS ,  Jiuliu LU ,  Bian QIAN ,  John S. RILEY

IPC: G06V20/69 ,  G06T5/30 ,  G06T7/00 ,  G06T7/194 ,  G06V10/60

Abstract: A visual analysis system may be automatically focused (or the focus of such a system may be automatically corrected) by subjecting one or more images captured by such a system to a multi-layer analysis. In such an analysis, a cell boundary may be identified in an input image based on the lightness value of the pixels of the input image. Based on the identified cell boundary, a predicted nominal focus value is determined which can provide a focusing distance (e.g., a distance between the focal plane of a camera used when an image was captured and the actual focal plane for an in-focus image). This focusing distance may then be used to (re) focus a camera or for other purposes (e.g., generating an alert).