Patent Document ID: 8189051
Application ID: 11933335
Patent Status: 1

Claim One:
1. A moving object detection apparatus using optical flow analysis, comprising: an image capturing module for successively capturing a plurality of images; an image aligning module for obtaining an aligned previous image for each pair of neighboring images of said plurality of images, said pair of neighboring images consisting of a previous image and a posterior image; an image matching module for taking a pixel as a unit and obtaining a corresponding pixel displacement vector for each pixel of said previous image and said posterior image through optical flow tracing; and a moving object detection module for combining all the corresponding pixel displacement vectors of all the pixels in said posterior image to determine a location of said moving object within an image frame; wherein said moving object detection module includes: a displacement direction projection conversion unit for obtaining a displacement vector conversion value for each pixel of said posterior image according to said corresponding pixel displacement vector; a projection conversion separation value determining unit, based on said displacement vector conversion value of each pixel of said posterior image, for obtaining standard deviation of the displacement vector conversion values of all pixels of said posterior image in order to determine a projection separation value for each pixel of said posterior image; and a moving object determining unit for marking the location of said moving object within said image frame according to said projection separation value for each pixel of posterior image.