Image processing apparatus and method for reproducing at least an image from a digital data sequence
First Claim
1. An image processing apparatus comprising:
- inputting means for inputting a data stream of MPEG 2;
detecting means for detecting a data stream of MPEG 4 inserted into the data stream of MPEG 2;
separating means for separating the data stream of MPEG2 and/or the data stream of MPEG 4 to a plurality of data;
decoding means for decoding the separated data; and
controlling means for controlling at least reproduction of image data decoded by said decoding means based on a result of said detecting means.
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Abstract
Upon implementing multi-functional TV broadcast and the like, it is desired to obtain information that pertains to a main image or that the user wants occasionally, if it does not pertain to the main image, in the form of an image as sub data with a small information size which is appended to the main image. For this purpose, MPEG4 data of sub TV information multiplexed in an MPEG2 datastream of the received and selected digital TV broadcast program is detected, and it is checked based on that detection result if MPEG4 data is included in the MPEG2 datastream. If MPEG4 data is included, an MPEG4 datastream is demultiplexed from the MPEG2 datastream, MPEG2 and MPEG4 data are respectively demultiplexed into sound, image, and system data, the demultiplexed data are decoded, and the output formats of MPEG2 image and sound data and MPEG4 scene and sound data are set.
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Citations
15 Claims
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1. An image processing apparatus comprising:
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inputting means for inputting a data stream of MPEG 2;
detecting means for detecting a data stream of MPEG 4 inserted into the data stream of MPEG 2;
separating means for separating the data stream of MPEG2 and/or the data stream of MPEG 4 to a plurality of data;
decoding means for decoding the separated data; and
controlling means for controlling at least reproduction of image data decoded by said decoding means based on a result of said detecting means. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An image processing method comprising the steps of:
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inputting a data stream of MPEG 2;
detecting a data stream of MPEG 4 inserted into the data stream of MPEG 2;
separating the data stream of MPEG2 and/or the data stream of MPEG 4 to a plurality of data;
decoding the separated data; and
controlling at least reproduction of image data decoded by said decoding means based on a result of the detection. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A computer program product comprising a computer readable medium having a computer program code, for an image processing, said product comprising:
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input process procedure code for inputting a data stream of MPEG 2;
detection process procedure code for detecting a data stream of MPEG 4 inserted into the data stream of MPEG 2;
separation process procedure code for separating the data stream of MPEG2 and/or the data stream of MPEG 4 to a plurality of data;
decoding process procedure code for decoding the separated data; and
control process procedure code for controlling at least reproduction of image data decoded by said decoding process procedure code based on a result of the detection.
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Specification