Method and apparatus for separating/generating background and motion object planes

An apparatus for receiving digital video data including wide background data representing at least an image of a background having a wider range than N×M and motion data generated from the digital video data representing at least an N×M motion object plane, said apparatus comprising:

• a memory for storing said wide background data and said motion data;
• a circuit for reading an N×M background image plane from said wide background data;
• a circuit for combining the N×M background image plane and the motion data to produce output digital video data;
• a detecting circuit for detecting background plane change information in accordance with position changes of respective N×M background image planes from said wide background data between at least two of a plurality of images of the digital video data;
• and
• a recording circuit for recording the background plane change information;
• wherein each of said at least one N×M motion object plane comprises one motion object.

A method for transmitting digital video data having a plurality of images, said digital video data including a background and at least one motion object, said method comprising the steps of:

• separating an N×M image of said digital video data into a plurality of N×M planes thereby generating background data representing at least an N×M plane of the background and motion data representing at least an N×M motion object plane from the digital video data;
• storing wide background data generated from the background data of the plurality of images in a memory, the wide background data comprising at least an image of the background having a wider range than N×M;
• detecting background plane change information in accordance with position changes of respective N×M planes of the background in the image of the background between at least two of the plurality of images;
• recording the background plane change information;
• and
• transmitting the wide background data together with the motion data;
• wherein each of said at least one N×M motion object plane comprises one of said at least one motion object.

A method for receiving digital video data including wide background data representing at least an image of a background having a wider range than N×M and motion data generated from the digital video data representing at least an N×M motion object plane, said method comprising the steps of:

• storing said wide background data and said motion data in a memory;
• reading an N×M background plane from said wide background data;
• combining the N×M background plane and the motion data to produce output digital video data;
• detecting background plane change information in accordance with position changes of respective N×M background planes from said wide background data between at least two of a plurality of images of the digital video data;
• and
• recording the background plane change information
• wherein each of said at least one N×M motion object plane comprises one motion object.

An apparatus for transmitting digital video data having a plurality of images said digital video data including a background and at least one motion object, said apparatus comprising:

• a separating circuit supplied with the digital video data for separating background data representing the background and at least one motion data representing the at least one motion object, said separating circuit including a background memory storing wide background data generated from the background data of the plurality of images, the wide background data being a picture image of a wider range than that of one screen of the digital video data;
• and
• a circuit for transmitting the wide background data and the at least one motion data;
• wherein said background of a k-th image of said plurality of images is determined from pixel data of a previous image background and input digital video data of said k-th image.

An apparatus for transmitting digital video data having a plurality of frames, said digital video data including a background and at least one motion object, said apparatus comprising:

• a separating circuit supplied with the digital video data for separating background data representing the background and at least one motion data representing the at least one motion object, said separating means including a background memory storing wide background data generated from the background data of the plurality of frames, the wide background data being a picture frame of a wider range than that of one screen of the digital video data;
• and
• a circuit for transmitting the wide background data and the at least one motion data,
• wherein said at least one motion data comprises one still image of the motion object and motion changing information of the motion object between frames, and
• wherein said background of a k-th image of said plurality of images is determined from pixel data of a previous image background and input digital video data of said k-th image.

An apparatus for receiving a wide background data and at least one motion data generated from digital video data, said digital video data having a plurality of frames, said digital video data including background data and at least one motion object, said wide background data having been generated from background data of the plurality of frames, the wide background data being a picture frame of a wider range than that of one screen of the digital video data, said at least one motion data separated from said background data, said aparatus comprising:

• a memory for storing said wide background data and said at least one motion data;
• a circuit for reading background data as one screen from said wide background data;
• and
• a circuit for combining the read background data and the at least one motion data and producing digital video data to be outputted,
• wherein said background of a k-th image of said plurality of images is determined from pixel data of a previous image background and input digital video data of said k-th image.

An apparatus for receiving a wide background data and at least one motion data generated from digital video data, said digital video data having a plurality of frames, said digital video data including background data and at least one motion object, said wide background data having been generated from background data of the plurality of frames, the wide background data being a picture frame of a wider range than that of one screen of the digital video data, said at least one motion data separated from said background data, said apparatus comprising:

• a memory for storing said wide background data and said at least one motion data;
• a circuit for reading background data as one screen from said wide background data;
• and
• a circuit for combining the read background data and the at least one motion data and producing digital video data to be outputted, p1 wherein said at least one motion data comprises one still image of the motion object and motion changing information of the motion object between frames,
• wherein said circuit for combining the background data and the at least one motion data being operable on the basis of said motion changing information of object, and
• wherein said background of a k-th image of said plurality of images is determined from pixel data of a previous image background and input digital video data of said k-th image.

A method for transmitting digital video data having a plurality of frames, said digital video data including a background and at least one motion object, said method comprising the steps of:

• separating background data representing the background and at least one motion data representing the at least one motion object from the digital video data;
• storing wide background data generated from the background data of the plurality of frames in a memory, the wide background data being a picture frame of a wider range than that of one screen of the digital video data;
• and
• transmitting the wide background data together with the at least one motion data,
• wherein said background of a k-th image of said plurality of images is determined from pixel data of a previous image background and input digital video data of said k-th image.

A method for transmitting digital video data having a plurality of frames, said digital video data including a background and at least one motion object, said method comprising the steps of:

• separating background data representing the background and at least one motion data representing the at least one motion object from the digital video data;
• storing wide background data generated from the background data of the plurality of frames in a memory, the wide background data being a picture frame of a wider range than that of one screen of the digital video data;
• and
• transmitting the wide background data together with the at least one motion data,
• wherein said at least one motion data includes one still image of the motion object and motion changing information of the motion object between frames, and
• wherein said background of a k-th image of said plurality of images is determined from pixel data of a previous image background and input digital video data of said k-th image.

A method for receiving a wide background data and at least one motion data generated from digital video data, said digital video data having a plurality of frames, said digital video data including background data and at least one motion object, said wide background data having been generated from background data of the plurality of frames, the wide background data being a picture frame of a wider range than that of one screen of the digital video data, said at least one motion data separated from said background data, said method comprising the steps of:

• storing said wide background data and said at least one motion data in a memory;
• reading background data as one screen from said wide background data;
• and
• combining the read background data and the at least one motion data and producing digital video data to be outputted,
• wherein said background of a k-th image of said plurality of images is determined from pixel data of a previous image background and input digital video data of said k-th image.

A method for receiving a wide background data and at least one motion data generated from digital video data, said digital video data having a plurality of frames, said digital video data including background data and at least one motion object, said wide background data having been generated from background data of the plurality of frames, the wide background data being a picture frame of a wider range than that of one screen of the digital video data, said at least one motion data separated from said background data, said method comprising the steps of:

• storing said wide background data and said at least one motion data in a memory;
• reading background data as one screen from said wide background data;
• and
• combining the read background data and the at least one motion data and producing digital video data to be outputted,
• wherein said at least one motion data includes one still image of the motion object and motion changing information of the motion object between frames,
• wherein said step of combining combines the background data and the at least one motion data on the basis of said motion changing information of object, and
• wherein said background of a k-th image of said plurality of images is determined from pixel data of a previous image background and input digital video data of said k-th image.