| 摘要 |
<p>A method for detecting an object in a scene situated in a sector and capable of comprising one or more artifacts, includes_a step of scanning the sector at an angular velocity theta', a step of acquiring digital images of the scene at a rate f by means of a matrix detector, these images comprising pixels and covering an instantaneous field of angular width "a". It comprises the following steps of processing the acquired images, in batches of N consecutive images where N=af/theta': dividing the N images into P groups of images; for each group p, accumulating the images of the group so as to obtain an accumulated image Ip; for each image Ip, selecting the pixels that satisfy a determined detection criterion; for each image Ip comprising at least one selected pixel, called the start-of-confirmation image, carrying out a temporal confirmation step which comprises the following substeps: applying a temporal confirmation criterion by comparing with a number K the number k of times that this selected pixel in the starting image has been selected in the subsequent Ip images: this pixel will be considered to be that of an object if k>=K; reiterating this temporal confirmation criterion for all the selected pixels of this starting image.</p> |
