US 11,995,869 B2
System and method to improve object detection accuracy by focus bracketing
Sourabh Singh Yadav, Khargone (IN); and Rajkiran Kumar Gottumukkal, Bangaluru (IN)
Assigned to Johnson Controls Tyco IP Holdings LLP, Milwaukee, WI (US)
Filed by Johnson Controls Tyco IP Holdings LLP, Milwaukee, WI (US)
Filed on Sep. 28, 2021, as Appl. No. 17/488,103.
Prior Publication US 2023/0098110 A1, Mar. 30, 2023
Int. Cl. G06T 7/00 (2017.01); H04N 23/67 (2023.01)
CPC G06T 7/97 (2017.01) [H04N 23/676 (2023.01); G06T 2207/20221 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a processor, a first image from an image sensor, wherein the first image is obtained by the image sensor using a first focal length;
receiving, by the processor, a second image from the image sensor, wherein the second image is obtained by the image sensor using a second focal length that is different than the first focal length;
detecting, by the processor, one or more objects in the first image;
generating, by the processor, a third image by applying one or more object masks to the second image, wherein the one or more object masks identify one or more regions of the first image that correspond to the one or more first objects detected in the first image;
detecting, by the processor, one or more second objects in the third image; and
combining, by the processor, the one or more objects detected in the first image with the one or more objects detected in the third image.