Abstract: The principles disclose a method enabling a video zooming feature while playing back or capturing a video signal on a device (100). A typical example of device implementing the method is a handheld device such as a tablet or a smartphone. When the zooming feature is activated, the user double taps to indicate the area on which he wants to zoom in. This action launches the following actions: first, a search window (420) is defined around the position of the user tap, then human faces are detected in this search window, the face (430) nearest to the tap position is selected, a body window (440) and a viewing window (450) are determined according to the selected face and some parameters. The viewing window (450) is scaled so that it is only showing a partial area of the video. The body window (440) tracking (BW) will be tracked in the video stream and motions of this area within the video will be applied to the viewing window (450), so that it stays focused on the previously selected person of interest.

Abstract: A method for pairing a first device with a second device is disclosed. A salient idea is to generate a discriminant and visually differentiable visual representation from a unique identifier of a device, to make it available for example together with the unique identifier on a printed package of the device, and to regenerate it for display as part of the pairing process. A user checking the displayed visual representation matches the printed visual representation of the package can successfully terminate a pairing process.