US 2010/0246673 A1 · DYNAMIC IMAGE RECEIVING APPARATUS, DYNAMIC IMAGE RECEIVING METHOD AND PROGRAM

Abstract

To provide a dynamic image receiving apparatus which receives dynamic image streams coded with inter-frame prediction such as MPEG from a plurality of channels, and collects the dynamic image streams containing intra-frame coded pictures from each channel in a short time. The dynamic image receiving apparatus includes: a time information accumulative processing device which accumulates code receiving time of the intra-frame coded picture of the dynamic image stream, and periodicity time information containing one of or both of presentation time information and decoding time information contained in the dynamic image stream for each dynamic image stream of the plurality of channels; code receiving time predicting devices which predict the code receiving time of the intra-frame coded pictures based on the periodicity time information; and a channel selection control device which controls channel selection of the dynamic image stream to be received based on the predicted code receiving time information.

Claims21

Dependent claims

1-36. (canceled)

A dynamic image receiving apparatus for selecting and receiving dynamic image streams coded by a picture unit based on intra-frame coding and inter-frame prediction from two or more channels, and collecting representative images of the plurality of channels by decoding the received streams, the apparatus including:

a coded stream receiving device for receiving the dynamic image streams from the channels, and extracting time at which a code of an intra-frame coded picture within the streams is received, and decoding time stamp or presentation time stamp added to the intra-frame coded picture;
an accumulative processing device for storing receiving time of the code, the decoding time stamp or the presentation time stamp as time information by being related to the respective channel;
and
a time predicting/channel selecting device for predicting receiving time of codes of intra-frame coded pictures to be received from current time and thereafter for each of the plurality of channels based on a history of the receiving time of the codes of the intra-frame coded pictures and the decoding time stamp or the presentation time stamp stored in the past, and determining the channel to be received based on an obtained predicted result.

1 more element

A dynamic image receiving method for receiving a dynamic image stream coded by a picture unit according to intra-frame coding and inter-frame prediction coding by selecting a channel from two or more dynamic image transmission channels as collection targets, including:

storing time at which a code of the intra-frame coded picture within the stream is received and decoding time stamp or presentation time stamp added to the intra-frame coded picture as time information by being related to the channel;
and
predicting receiving time of the codes of the intra-frame coded pictures to be received from current time and thereafter for the two or more channels based on a history of the receiving time of the codes of the intra-frame coded pictures and the decoding time stamp or the presentation time stamp stored in the past, and selecting the channel to be received based on an obtained predicted result.

Dependencies are inferred from the claim text.

Dynamic image receiving apparatus, dynamic image receiving method and program

Life of this patent

Dynamic image receiving apparatus, dynamic image receiving method and program

Life of this patent

Abstract

Claims21