Abstract: A method for determining an element of interest referenced by image points, the real coordinates of a point of interest in the environment of the imaging device corresponding to an image point of the plurality of image points including selecting, in the image a noteworthy image point from among the plurality of image points, the noteworthy image point corresponding, in the real environment, to a noteworthy point for which the order of magnitude of the height is known, a predefined height being assigned to the height, calculating an absolute depth of the noteworthy image point based on a triplet of components of the noteworthy image point and on the predefined height, and determining the real coordinates of the point of interest in the real environment of the imaging device, based on a triplet of components of the image point corresponding to the point of interest and on the absolute depth.

Abstract: A method for determining calibration parameters for an imaging device by way of a computer, based on at least one image having at least one person including selecting, by way of the computer, a plurality of pairs of points in the at least one image, each pair of points comprising a head point and a foot point associated with the person, and determining calibration parameters by way of the computer, using a two-dimensional estimator able to determine one of the estimated image coordinates of a head point based on the image coordinates of the foot point of a person and on the calibration parameters, determining the calibration parameters comprising minimizing an error between said estimated image coordinates of the head point and said image coordinates of the corresponding head point.

Abstract: An apparatus and a method for producing pasty paraffin from liquid paraffin comprises the use of an agitator for mixing the paraffin during its solidification within a receptacle. The viscosity of the paraffin is controlled by the monitoring of the power of a motor driving the agitator. Also, an apparatus is provided for producing candles in bottles from the pasty paraffin produced hereinabove. The apparatus comprises a filling head which receives the pasty paraffin and a continuous wick. A device is included for positioning a ferrule on the wick with the filling head being adapted for lowering into the bottle for positioning the ferrule at the bottom thereof and being also adapted to inject pasty paraffin in the bottle for setting the ferrule. The filling head is then retracted slowly from the bottle while injecting further paraffin therein for filling to a selected level the bottle.