Method and apparatus for transmitting video data

An apparatus for transmitting video signals comprising:

• input means for receiving video data of sequential fields;
• memory means for storing the video data of a plurality of fields;
• parameter generating means for generating respective prameters to specify a time spatial relation which is defined by a linear combination from reference pixel data of a plurality of fields to be periodically transmitted every predetermined number of fields and pixel data of a respective field to be skipped between said plurality of fields to be periodically transmitted, each being stored in said memory means;
• and
• means for transmitting the video data of said fields to be periodically transmitted every said predetermined number of fields and said respective parameters instead of the video data of said respective field to be skipped;
• wherein the video data of said plurality of fields are periodically transmitted every five fields.

An apparatus for transmitting video signals comprising:

• input means for receiving video data of sequential fields;
• memory means for storing the video data of a plurality of fields;
• parameter generating means for generating respective parameters to specify a time spatial relation which is defined by a linear combination from references pixel data of a plurality of fields to be periodically transmitted every predetermined number of fields and pixel data of a respective field to be skipped between said plurality of fields to be periodically transmitted, each being stored in said memory means;
• and
• means for transmitting the video data of said fields to be periodically transmitted every said predetermined number of fields and said respective parameters instead of the video data of said respective field to be skipped;
• wherein said parameter generating means consists of means for extracting neighboring reference pixel data around respective pixels of a field to be skipped, first multiplying means for multiplying a matrix of neighbor reference pixel data and a transposed matrix thereof, first accumulating means for accumulating the result from said means for multiplying over a whole field, means for generating an inverse matrix of the result from said first accumulating means, second multiplying means for multiplying respective pixel data of fields to be transmitted and to be skipped, second accumulating means for accumulating the result from said second multiplying means, and third multiplying means for mutiplying the result from said means for generating the inverse matrix and second multiplying means.

Method for transmitting video signals comprising the steps of:

• receiving video data of sequential fields;
• storing the video data of a plurality of fields;
• generating a predetermined number of respective parameters to specify a time spatial relation which is defined by a linear combination from reference pixel data of a plurality of non-adjacent, alternately odd and even fields to be periodically transmitted every predetermined number of fields and pixel data of a respective field to be skipped between said plurality of fields to be periodically transmitted;
• and
• transmitting the video data of said fields to be periodically transmitted every said predetermined number of fields and said respective parameters instead of the video data of said respective field to be skipped.

Method for transmitting video signals comprising the steps of;

• receiving video data of sequential fields;
• storing the video data of a plurality of fields;
• generating respective parameters to specify a time spatial relation which is defined by a linear combination from reference pixel data of a plurality of fields to be periodically transmitted every predetermined number of fields and pixel data of a respective field to be skipped between said plurality of fields to be periodically transmitted;
• and
• transmitting the video data of said fields to be periodically transmitted every said predetermined number of fields and said respective parameters instead of the video data of said respective field to be skipped;
• wherein said step of transmitting includes the step of transmitting periodically the video data of said plurality of fields every five fields.

An apparatus for decoding video signals comprising:

• input means for receiving the video data of fields being periodically transmitted every predetermined number of fields and a predetermined number of respective parameters to specify a time spatial relation which is defined by a linear combination from reference pixel data of non-adjacent, alternately odd and even ones of said fields being periodically transmitted and pixel data of a respective field being skipped between said fields being periodically transmitted;
• memory means for storing the data of said received video data of said fields being periodically transmitted;
• and
• prediction means for predicting pixel data of said respective field being skipped from said video data of said received video data of said fields being periodically transmitted and said respective parameters.