Abstract: A device and a method for playing audio-video content (205) during which loss of attention of a user (192) is detected. Loss of attention of the user generates at least one attention loss marker (255) that is stored in an attention loss storage unit (210). The user may revert playback to a point in time corresponding to the attention loss marker using a user interface unit (190). By storing markers corresponding to points of attention loss by the user and requiring explicit user input, the attention loss detector may detect attention loss with an accuracy lower than would otherwise be the case. Optionally, storing of the attention loss markers may be made conditional upon a content analysis unit (420), such as a commercial block detector. An attention loss marker indication (260) may be made visible to the user to indicate that at least one attention loss marker has been detected.

Abstract: A system computes a combined dominant color descriptor (DCD) of a plurality of images (IM 1, IM 2, IM n). The system comprises an input 206 for receiving a plurality of respective dominant color descriptors (DCD 1, DCD 2, DCD n) of respective images of the plurality of images (IM 1, IM 2, IM n). The system further comprises means 202 for generating a collection of generated color values (IM) based on dominant colors included in the received dominant color descriptors (DCD 1, DCD 2, DCD n), and means 204 for computing at least one dominant color of the collection of generated color values (IM) for inclusion in the combined dominant color descriptor (DCD). In the collection, at least one generated color value is included representing a dominant color in one of the received dominant color descriptors.

Abstract: An object captured by a digital image is automatically identified by determining a location at which a digital image is captured; retrieving a plurality of candidate objects associated with said determined location; comparing an object captured by said digital image with each of said retrieved plurality of candidate objects to identify said object. One of the candidate images can be selected and used to create a collage of the captured image and a more complete image of the object.

Abstract: Representation of textual information (such as a Scoreboard) is detected (105) in a video data stream and is incorporated (107) into the summary of the video data stream. The summary includes textual information that may not have been displayed in a frame selected for the summary.

Abstract: Techniques for guaranteeing payment to a seller of a commodity purchased by a buyer are described. A selection of a sales proposal for purchasing the commodity from the seller is received. The sales proposal specifies the conditions under which the commodity will be delivered to the buyer. The seller is then notified that the sales proposal has been selected by the buyer, and a payment agreement is provided to the seller. The payment agreement specifies financial terms under which a financial institution guarantees payment to the seller on behalf of the buyer for future deliveries of the commodity in accordance with the sales proposal.