Patent ID: 9672434
Date: 2017-06-06
CPC Classifications: G06K,G06T

Claim:
1. A computer implemented method for detecting vehicle occupancy of a plurality of parking spaces comprising: acquiring a sequence of images of the plurality of parking spaces; extracting at least one vector of data from the same location in each of the images; generating a plurality of spatiotemporal images, each spatiotemporal image comprised of vectors of data extracted from the same location in each of the sequence of images; and analyzing the plurality of spatiotemporal images to obtain vehicle occupancy data of each of the plurality of parking spaces; wherein the analyzing includes calculating a color difference of respective at least one pixels in at least two of the spatiotemporal images, determining the maximum absolute difference per pixel between at least two spatiotemporal images and comparing the difference to a threshold to obtain occupancy data, or subtracting a first spatiotemporal image from a second spatiotemporal image and comparing the difference to a threshold to obtain occupancy data.