公开(公告)号：US12018971B2

公开(公告)日：2024-06-25

申请号：US17295422

申请日：2019-12-03

申请人： Bio-Rad Laboratories, Inc.

发明人： Adam Philip Lins ,  Glenn Leo Price ,  Robert Alan Iovanni

IPC分类号： G01F23/292 ,  G06F16/245 ,  G06T7/62 ,  G06T7/73 ,  G16H10/40 ,  G16H40/40

CPC分类号： G01F23/292 ,  G06F16/245 ,  G06T7/62 ,  G06T7/73 ,  G16H10/40 ,  G16H40/40 ,  G06T2207/10024 ,  G06T2207/30004

摘要： Disclosed herein are a system and method for determining a liquid level in a container based on data extracted from a digital image of the container. An image capture apparatus captures an image of a container used to store liquid reagents used by analytical instruments to test patient samples. A controller receives the captured image and extracts an analysis region based on a container type and applies a gradient filter to the analysis region. A location of a minimum gradient value (i.e., a row index) is determined based on the air-to-liquid boundary of the liquid in the extracted analysis region. A volume module calculates the liquid level in the analysis region by dividing the row index by a length of a gradient column vector and compares the determined liquid level to a threshold analysis region fraction for the container type to determine whether to output an alert.

公开(公告)号：US20240295426A1

公开(公告)日：2024-09-05

申请号：US18658698

申请日：2024-05-08

申请人： Bio-Rad Laboratories, Inc.

发明人： Adam Philip Lins ,  Glenn Leo Price ,  Robert Alan Iovanni

IPC分类号： G01F23/292 ,  G06F16/245 ,  G06T7/62 ,  G06T7/73 ,  G16H10/40 ,  G16H40/40

CPC分类号： G01F23/292 ,  G06F16/245 ,  G06T7/62 ,  G06T7/73 ,  G16H10/40 ,  G16H40/40 ,  G06T2207/10024 ,  G06T2207/30004

摘要： Disclosed herein are a system and method for determining a liquid level in a container based on data extracted from a digital image of the container. An image capture apparatus captures an image of a container used to store liquid reagents used by analytical instruments to test patient samples. A controller receives the captured image and extracts an analysis region based on a container type and applies a gradient filter to the analysis region. A location of a minimum gradient value (i.e., a row index) is determined based on the air-to-liquid boundary of the liquid in the extracted analysis region. A volume module calculates the liquid level in the analysis region by dividing the row index by a length of a gradient column vector and compares the determined liquid level to a threshold analysis region fraction for the container type to determine whether to output an alert.