Abstract: A video communication system adapted to interface with video cameras for receiving respective video signals therefrom.

Abstract: A remote support communication system comprises a user terminal unit and an operator terminal unit. Said user terminal unit comprises a camera module configured to shoot video images of an object in order to acquire an ordered sequence of video frames forming a corresponding first video and a video transmission module configured to transmit the video frames to the operator terminal unit. Said operator terminal unit comprises a display and drawing module configured to display the video frames and allow an operator to generate digital graphic components to be superimposed on respective video frames; a graphic transmitter module configured to transmit said graphic components to the user terminal unit.

Abstract: A monitoring system assesses the position of at least one target within an area. The monitoring system comprises a processing unit adapted to receive, from a camera, at least a frame depicting a scene of the area. The frames generated by the camera have a first resolution. The processing unit comprises: a database module storing, for each at least one target, a corresponding reference image, each reference image having a second resolution lower than the first resolution; a segmentation module configured to segment a received frame into frame segments, each frame segment having a resolution corresponding to the second resolution; a search module configured to implement a visual search procedure between each frame segment and a reference image comprising a depiction of the at least one target; and a position and translation module for calculating the position of the at least one target within the received frame.

Abstract: A remote support communication system comprises a user terminal unit and an operator terminal unit. Said user terminal unit comprises a camera module configured to shoot video images of an object in order to acquire an ordered sequence of video frames forming a corresponding first video and a video transmission module configured to transmit the video frames to the operator terminal unit. Said operator terminal unit comprises a display and drawing module configured to display the video frames and allow an operator to generate digital graphic components to be superimposed on respective video frames; a graphic transmitter module configured to transmit said graphic components to the user terminal unit.

Abstract: A monitoring system assesses the position of at least one target within an area. The monitoring system comprises a processing unit adapted to receive from a camera, at least a frame depicting a scene of the area. The frames generated by the camera have a first resolution. The processing unit comprises: a database module storing, for each at least one target, a corresponding reference image, each reference image having a second resolution lower than the first resolution; a segmentation module configured to segment a received frame into frame segments, each frame segment having a resolution corresponding to the second resolution; a search module configured to implement a visual search procedure between each frame segment and a reference image comprising a depiction of the at least one target; and a position and translation module for calculating the position of the at least one target within the received frame.

Abstract: A method for coding data, includes: grouping data into frames; classifying the frames into classes; for each class, transforming the frames belonging to the class into filter parameter vectors, which are extracted from the frames by applying a first mathematical transformation; for each class, computing a filter codebook based on the filter parameter vectors belonging to the class; segmenting each frame into subframes; for each class, transforming the subframes belonging to the class into source parameter vectors, which are extracted from the subframes by applying a second mathematical transformation based on the filter codebook computed for the corresponding class; for each class, computing a source codebook based on the source parameter vectors belonging to the class; and coding the data based on the computed filter and source codebooks.

Abstract: A system adapted for use, e.g. in an MPEG audio-video decoder for decoding variable-length (e.g. Huffman) encoded codewords, each having associated a respective set of sign bits. The system operates on the basis of a signed decoding codebook including extended signed codewords. Each extended codeword includes a respective codeword in the original codebook plus the associated set of sign bits. The variable-length encoded codewords are decoded on the basis of the signed decoding codebook, whereby the codewords are decoded together with the sign bit set associated therewith. Preferably, the codewords are partitioned in “short” and “long” codewords with respect to a given threshold. The short codewords are decoded by means of a single lookup step in a first lookup table. The long words are decoded by means of a multi-step lookup process involving at least one second lookup table. The lookup tables are preferably arranged as nested lookup tables within a container table.

Abstract: A system adapted for use, e.g. in an MPEG audio-video decoder for decoding variable-length (e.g. Huffman) encoded codewords, each having associated a respective set of sign bits. The system operates on the basis of a signed decoding codebook including extended signed codewords. Each extended codeword includes a respective codeword in the original codebook plus the associated set of sign bits. The variable-length encoded codewords are decoded on the basis of the signed decoding codebook, whereby the codewords are decoded together with the sign bit set associated therewith. Preferably, the codewords are partitioned in “short” and “long” codewords with respect to a given threshold. The short codewords are decoded by means of a single lookup step in a first lookup table. The long words are decoded by means of a multi-step lookup process involving at least one second lookup table. The lookup tables are preferably arranged as nested lookup tables within a container table.