Abstract: A method for producing a panoramic image based on a video sequence includes merging a target image of a video sequence with a panoramic pan made up of images of the video sequence. The method includes evaluating the luminance difference between the target image and the last image used for the panoramic pan, determining the size of a zone the two images will be merged as a function of the evaluated luminance difference, and correcting the luminance of the pixels situated in the merging zone.

Abstract: A method aligns two consecutive images of a video sequence to produce a panoramic image. More particularly, the method corrects a displacement vector of a target image of a video sequence. The target image is composed of distinct blocks. The method determines the displacement vector based on a plurality of displacement vectors of the blocks in the target image.

Abstract: A method and apparatus for aligning two successive images of a video sequence to produce a panoramic image is disclosed. To align the images, the apparatus corrects a first displacement vector of a target image in the video sequence. The first vector is determined by estimating the displacement of a target image with respect to at least one previous image of the video sequence.

Abstract: The retractable stop associated with the valve (14) of the female element (2) consists of a spring (26) in catch (hook) form (26), of which the branches (26a) are engaged on the stem (14a) of the valve (14), so as to grip it constantly between two zones, diametrically opposite each other, while the sliding ring (24) has, at its end turned toward the collar (20), a cylindrical segment (24b) of diameter (D3) greater than that of the first section (14'a) of the stem (14a) of the valve (14), and between its end (24a), designed to come in contact with the shoulder (23) of the stem (14a) and the said cylindrical segment (24b), a truncated cone segment (24c), of which the small diameter is equal to the diameter (D1) of the first section (14'a) of the stem (14a), and which is designed to be situated between the branches (26a) of the catch (26) when the ring (24) is supported against the shoulder (23) of the stem (14a) of the valve (14), and this latter is in normal opening position.