Patent ID: 11863869
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. A computer implemented method, comprising:
receiving a first image data generated at a first time;
receiving a second image data generated at a second time that is different than the first time;
receiving a third image data generated at a third time that is different than the first time and the second time;
receiving a fourth image data generated at a fourth time that is different than the first time, the second time, and the third time;
generating a first motion extracted image by at least:
comparing the first image data and the second image data to determine a first difference between a first pixel of the first image data and a second pixel of the second image data;
extracting the first pixel; and
including at least a first portion of a baseline image to replace the extracted first pixel;

generating a second motion extracted image by at least:
comparing the third image data and the fourth image data to determine a second difference between a third pixel of the third image data and a fourth pixel of the fourth image data;
extracting the third pixel; and
including at least a second portion of the baseline image to replace the extracted third pixel;

comparing the first motion extracted image and the second motion extracted image to determine a difference between the first motion extracted image and the second motion extracted image, wherein the difference is determined based at least in part on a depth value difference between one or more pixels of the first motion extracted image and one or more pixels of the second motion extracted image; and
in response to determining the difference between the first motion extracted image and the second motion extracted image, generating an event notification indicative of an event.