FIELD: information technology.
SUBSTANCE: invention relates to image processing. method for determining a spatial parameter by using an image is applicable to a display device and includes determining the coordinates of the first pixel, corresponding to the image, displayed on the display device, and the coordinates of the second pixel corresponding to the image; determining the distance in the image between the coordinates of the first pixel and the coordinates of the second pixel; and determining a corresponding spatial parameter between the first pixel coordinates and the second pixel coordinates according to the image distance, distance to the object when photographing it and the focal length of the camera lens for photographing the object, wherein determining the distance in the image includes determining a distance in pixels between the coordinates of the first pixel and the coordinates of the second pixel; determining the physical size of the pixel for the imager of the camera image signal; and determining the distance in the image between the coordinates of the first pixel and the coordinates of the second pixel according to the distance in pixels and the physical size of the pixel.
EFFECT: technical result is the determination of the real distance based on the image without comparison with the reference object available in the image.
10 cl, 8 dwg
