US 11,852,895 B2
System and method for obtaining optimal focus of an image capturing device
Krithika Gurumurthy, Chennai (IN); and Naresh Rajasekar, Chennai (IN)
Assigned to E-CON SYSTEMS INDIA PRIVATE LIMITED
Filed by E-CON SYSTEMS INDIA PRIVATE LIMITED, Chennai (IN)
Filed on Feb. 28, 2022, as Appl. No. 17/681,925.
Prior Publication US 2023/0273399 A1, Aug. 31, 2023
Int. Cl. G02B 7/38 (2021.01); H04N 17/00 (2006.01)
CPC G02B 7/38 (2013.01) [H04N 17/002 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A system for obtaining optimal focus of an image capturing device comprising:
a processing subsystem hosted on a server and configured to execute on a network to control bidirectional communications among a plurality of modules comprising:
an image capturing module configured to receive a predetermined number of a first set of frames by calibration of the image capturing device;
an image processing module operatively coupled to the image capturing module, wherein the image processing module is configured to:
calculate focal values of each of the predetermined number of the first set of frames using a focal value calculation technique:
identify a predefined threshold of the focal value among each of the focal values calculated for each of the predetermined number of the first set of frames; and
determine a reference frame among each of the predetermined number of the first set of frames based on the predefined threshold of the focal value identified;
an image comparison module operatively coupled to the image processing module, wherein the image comparison module is configured to:
compare focal value of one or more live frames captured using the image capturing device with the focal value of reference frame determined; and
select an optimal live frame from the one or more live frames when the focal value of the one or more live frames is greater than a predefined percentage of the focal value of the reference frame; and
a notification module operatively coupled to the image comparison module, wherein the notification module is configured to notify an achievement of an optimal focal value range corresponding to the optimal live frame to an operator through one or more notification means.