| 摘要 |
The invention relates mainly to a method for counting people situated in a scene in a field of view of a stereoscopic appliance (1), characterised in that it comprises the following steps: generating a left image and a right image from two cameras (3) associated with optical systems (5); producing images, called left and right rectified images, wherein a point of the scene corresponds to pixels situated on a same line of the left rectified image and the right rectified image; identifying, for each pixel of an image, the corresponding pixel of the scene in the other image, and deducing an image therefrom, called an image of disparities wherein the value of each pixel corresponds to the distance, in a same line, between the row of corresponding pixels in the two images; calculating a gradient between each pixel of the image of disparities and a preceding pixel on a same line; and detecting a person according to the calculated gradients and counting the people detected in this way. |
