Abstract: A system for determining a position characteristic for an object in a room comprises an optically identifiable element (103) positioned on a background surface for a detection area of the room. A camera (101) is positioned across the detection area from the optically identifiable element (103) and captures an image comprising the detection area and the optically identifiable element (103). A detector (403) detects the optically identifiable element (103) in the image based on an optical property. An occlusion processor (405) determines an occlusion property for an occlusion of the optically identifiable element (103) in the image in response to the optical property. A position processor (407) determines a depth position in response to the occlusion property where, the depth position is indicative of a position of the object along the optical axis of the camera (101). The invention may for example allow presence detection and rough localization of a person in a room.

Abstract: A method of encoding a video data signal (15) is provided, the method comprising providing at least a first image (21) of a scene (100) as seen from a first viewpoint, providing rendering information (22) for enabling the generation of at least one rendered image of the scene (100) as seen from a rendering viewpoint, providing a preferred direction indicator (23), defining a preferred orientation of the rendering viewpoint relative to the first viewpoint, and generating (24) the video data signal (15) comprising encoded data representing the first image, the rendering information and the preferred direction indicator.

Abstract: A method of generating a plurality of depth maps for a plurality of images comprises receiving a first image, obtaining information relating to the shot defined by the first image, generating a depth map for the first image according to a first schema, receiving a second image, obtaining information relating to the shot defined by the second image, detecting a change in the obtained information between the first and second image, and generating a depth map for the second image according to a second schema, the second schema having a complexity different from that of the first schema. The method can comprise accessing first and second depth models. In one embodiment, the first schema comprises the first depth model, and the second schema comprises the second model, and in a second embodiment the first schema comprises the first depth model, and the second schema comprises a combination of the first and the second depth models.

Abstract: A system for determining a position characteristic for an object in a room comprises an optically identifiable element (103) positioned on a background surface for a detection area of the room. A camera (101) is positioned across the detection area from the optically identifiable element (103) and captures an image comprising the detection area and the optically identifiable element (103). A detector (403) detects the optically identifiable element (103) in the image based on an optical property. An occlusion processor (405) determines an occlusion property for an occlusion of the optically identifiable element (103) in the image in response to the optical property. A position processor (407) determines a depth position in response to the occlusion property where, the depth position is indicative of a position of the object along the optical axis of the camera (101). The invention may for example allow presence detection and rough localization of a person in a room.

Abstract: A method of encoding a video data signal (15) is provided, the method comprising providing at least a first image (21) of a scene (100) as seen from a first viewpoint, providing rendering information (22) for enabling the generation of at least one rendered image of the scene (100) as seen from a rendering viewpoint, providing a preferred direction indicator (23), defining a preferred orientation of the rendering viewpoint relative to the first viewpoint, and generating (24) the video data signal (15) comprising encoded data representing the first image, the rendering information and the preferred direction indicator.

Abstract: A method of generating a plurality of depth maps for a plurality of images comprises receiving a first image, obtaining information relating to the shot defined by the first image, generating a depth map for the first image according to a first schema, receiving a second image, obtaining information relating to the shot defined by the second image, detecting a change in the obtained information between the first and second image, and generating a depth map for the second image according to a second schema, the second schema having a complexity different from that of the first schema. The method can comprise accessing first and second depth models. In one embodiment, the first schema comprises the first depth model, and the second schema comprises the second model, and in a second embodiment the first schema comprises the first depth model, and the second schema comprises a combination of the first and the second depth models.