US 12,219,124 B2
Using multiple target distances to determine long-term quality and/or performance over a temperature range
Morgan D. Murphy, Kokomo, IN (US); and Ronald M. Taylor, Greentown, IN (US)
Assigned to APTIV TECHNOLOGIES AG, Schaffhausen (CH)
Filed by Aptiv Technologies AG, Schaffhausen (CH)
Filed on Oct. 17, 2023, as Appl. No. 18/488,523.
Application 18/488,523 is a continuation of application No. 17/349,094, filed on Jun. 16, 2021, granted, now 11,818,332.
Prior Publication US 2024/0048684 A1, Feb. 8, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G06T 7/00 (2017.01); G01M 11/02 (2006.01); H04N 17/00 (2006.01)
CPC H04N 17/002 (2013.01) [G01M 11/0292 (2013.01); G06T 7/97 (2017.01); G06T 2207/10012 (2013.01); G06T 2207/10016 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for determining performance of a camera, the system comprising:
a processing system configured to:
control the camera to capture a first image of a vertical slanted edge and a horizontal slanted edge disposed at a first distance from the camera;
determine a first modulation transfer function (MTF) value from the first image;
control the camera to capture a second image of the vertical slanted edge and the horizontal slanted edge disposed at a second distance from the camera, wherein the second distance is different from the first distance;
determine a second MTF value from the second image; and
determine that the camera passes a performance test when the first MTF value is above a first preset value, the second MTF value is above a second preset value, and the difference between the first MTF value and the second MTF value is below a third preset value or below a preset percentage of the first MTF value.