초록 ▼

In an improved image data transmission system, an image data partitioning unit is provided at the transmitter section to partition an input image data into a predetermined number of picture elements (blocks) so that same picture elements of the image data can be subject to source image encoding and

In an improved image data transmission system, an image data partitioning unit is provided at the transmitter section to partition an input image data into a predetermined number of picture elements (blocks) so that same picture elements of the image data can be subject to source image encoding and forward error correction encoding. At the receiver section, picture elements in each of the data blocks are subject to error correction decoding and source image decoding. The receiver section is provided with an image data interpolator which works, when an transmission error is detected, to interpolate with a substitution data the data in a block in which the error has been detected or data in other block to which the error has been propagated as it is. After the interpolation, a reconstructed image data is delivered.

대표청구항 ▼

A method for transmission of image data, wherein an input digital image data is transmitted by encoding the source image data, encoding the coded image data for error correction and modulating it transmission over a transmission line, and is reconstructed by demodulating the image data received over

A method for transmission of image data, wherein an input digital image data is transmitted by encoding the source image data, encoding the coded image data for error correction and modulating it transmission over a transmission line, and is reconstructed by demodulating the image data received over the transmission line, decoding it for error correction and decoding it to the source image, comprising the steps of: partitioning the input data of a source image into a predetermined number of data blocks each of which including a plurality of picture elements from which the source image can be decoded; encoding each partitioned block for the source image and also encoding for correction of an error, if any, in the block; decoding each of the received blocks for error correction to detect any error caused in the block during transmission; discarding a block of the image data which has been decoded to the source image and contains a transmission-caused error or a block to which the error has been propagated as it is; interpolating the block of the image data containing the transmission-caused error or the block to which the error has been propagated as it is, with a previously stored substitution block which can be decoded and as set in the place of the block containing the error, and then reconstructing the image data.