LOW-COMPLEXITY MOTION DETECTION BASED ON IMAGE EDGES

摘要

A system for detecting a motion event based on images. The system acquires a first image and a comparison image, and generates a first edge image and a comparison edge image based on the first image and the comparison image. The system also determines the difference between the first edge image and the comparison edge image. The system indicates a motion event if the difference between the first edge image and the comparison edge image meets or exceeds a threshold.

主权项

1. A method for detecting a motion event comprising:
acquiring a first image; obtaining a comparison image; identifying edge pixels in the first image; generating a first edge image by assigning a first pixel value to the edge pixels of the first image and a second pixel value to non-edge pixels of the first image, the first pixel value being different with the second pixel value; identifying edge pixels in the comparison image; generating a comparison edge image by assigning the first pixel value to the edge pixels of the comparison image and the second pixel value to non-edge pixels of the comparison image; determining difference between the first edge image and the comparison edge image; determining whether the difference meets or exceeds a first threshold; and indicating that a motion event occurs if the difference meets or exceeds the first threshold.