A method and system for coding a video sequence based on motion compensated prediction, wherein an interpolation filter is used to generate predicted pixel values for picture blocks in the video sequence. The interpolation filter for use in conjunction with a multi-picture type is shorter or having fewer coefficients than the interpolation filter for use in conjunction with a single-picture type. As such, the complexity of the interpolation filter for the multi-picture type can be reduced. Furth...

The present invention relates to an apparatus and method for generating mosaic images, wherein photographed content is displayed as a still image by a digital TV display or video monitor for an extended period of time. The apparatus of the present invention includes an animation analyzer for output of a motion vector of an input image, a coefficient calculator for calculating transformation and warping coefficients, a means for offsetting illumination differences, and storage for mosaic images. ...

An endoscope includes an insert section, a CCD is mounted at the end of the insert section, and a CCU for producing a video signal is arranged in a control unit connected to a proximal end of the insert unit. The CCU includes a general-purpose DSP board having the function of producing a standard video signal, and a function adjustment/expansion circuit board for correcting a signal delay due to the length of a signal line connected to the CCD. The DSP boards and the function adjustment/expansio...

A digital video system for wirelessly transmitting a signal to a display device, including a receiver that analyzes a packet of the signal wirelessly received through a first transmitting/receiving unit to check the transmission error rate. The receiver externally sends out a grade adjustment request signal requesting up-adjustment or down-adjustment of a resolution grade of the signal through the first: transmitting/receiving unit, based on the checked transmission error rate and a resolution g...

A method and system of encoding and decoding digital video content. The digital video content comprises a stream of pictures which can each be intra, predicted, or bi-predicted pictures. Each of the pictures comprises macroblocks that can be further divided into smaller blocks. The method entails encoding and decoding each of the smaller blocks in each picture in said stream of pictures in either frame mode or in field mode.

A decoding apparatus is provided with a decoder for receiving plural bit streams and decoding the respective bit streams to output decoded bit streams, and a decoding state holder for saving and restoring plural states of the decoder. The decoder selects a bit stream to be a target of decoding, from among the plural bit streams to be decoded, decodes the selected bit stream, performs saving and restoration of its state into/from the decoding state holder, outputs plural decoding results to the c...

In a method for transmission of video information between HTTP servers and clients in a shared network resource, particularly Internet, the video information is stored as a video file consisting of packet-divided video streams compression-coded with average bit rates t(c) which cover the clients' expected channel bit rates s. Each packet and the video file are supplied with a header containing information for realizing a bandwidth-scalable video transmission over a suitable version of HTTP. Duri...

A data encoding apparatus operable to encode a plurality of data blocks produces encoded data in accordance with at least one of a selectable target data quantity or a selectable target data quality. The apparatus comprises a plurality of encoding processors at least one of the encoding processors having a parameter controller operable to determine, for each of the data blocks, a value for an encoding parameter to be used in an encoding process, which encoding parameter has an effect of influenc...

A video monitoring system using daisy chain is disclosed. The video monitoring system can display a multiplexed image consisting of four or more pictures by bypassing video signals captured by a plurality of video cameras through several stages.

A metadata extraction unit has a feature point selection and motion estimation unit 62 for extracting at least one feature point representing characteristics of the video/audio signals in a compressed domain of the video/audio signals. Thus, reduction of time or cost for processing can be realized and it makes it possible to process effectively.