Multi-channel video encoding apparatus and method
First Claim
1. A multi-channel video encoding apparatus comprising:
- a signal extraction unit for extracting synchronous signals and active video data from received video signals;
a decimation filter unit for spatially decimating the extracted active video data according to the number of channels;
a synchronization unit for synchronizing the decimated active video data for channels; and
an encoding unit for encoding the synchronized decimated active video data received from the synchronization unit.
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Abstract
An apparatus and method for encoding multi-channel video signals using a single encoder by a space division technique or a time division technique. In the multi-channel video encoding apparatus, a signal extraction unit extracts synchronous signals and active video data from received video signals. A decimation filter unit spatially decimates the extracted active video data according to the number of channels. A synchronization, unit synchronizes the decimated active video data for channels. An encoding unit encodes the synchronized decimated active video data received from the synchronization unit. This multi-channel video encoding apparatus can independently encode multi-channel video signals at the same time using a single encoder.
71 Citations
14 Claims
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1. A multi-channel video encoding apparatus comprising:
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a signal extraction unit for extracting synchronous signals and active video data from received video signals;
a decimation filter unit for spatially decimating the extracted active video data according to the number of channels;
a synchronization unit for synchronizing the decimated active video data for channels; and
an encoding unit for encoding the synchronized decimated active video data received from the synchronization unit.
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2. A multi-channel video encoding apparatus adopting a time division system, the apparatus comprising:
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a signal extraction unit for extracting synchronous signals and active video data from received video signals;
a decimation filter unit for spatially decimating the extracted active video data according to the number of channels;
a synchronization unit for storing the decimated active video data for channels received from the decimation filter unit and sequentially outputting the stored independent video data in synchronization with the synchronous signal of the last-received video data; and
an encoding unit for sequentially encoding the independent video data for channels received from the synchronization unit, to produce bitstreams for channels. - View Dependent Claims (3)
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4. A multi-channel video encoding apparatus adopting a space division system, the apparatus comprising:
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a signal extraction unit for extracting synchronous signals and active video data from received video signals;
a decimation filter unit for spatially decimating the extracted active video data according to the number of channels;
a synchronization unit for storing the decimated active video data for channels received from the decimation filter unit and combining the stored independent video data into a single video signal in synchronization with the synchronous signal of the last-received video data; and
an encoding unit for encoding the single combined video signal at one time like a single channel video signal is encoded, to produce a single bitstream. - View Dependent Claims (5, 6, 7, 8, 9, 10, 14)
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11. A multi-channel video encoding method comprising:
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extracting synchronous signals and active video data from received video signals;
spatially decimating the extracted active video data according to the number of channels to be multiprocessed;
synchronizing and serializing the decimated active video data for channels; and
sequentially encoding the decimated active video data for channels. - View Dependent Claims (12)
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13. A hybrid multi-channel video encoding method comprising:
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generating a newly synchronized video signal i.e. the 1st signlal comprising of spatially decimated input videos;
generating a frame switched serial video signal i.e. 2nd signal without frame delay, that is, temporally divided input videos;
encoding selectively the 1st or 2nd signal.
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Specification