METHOD OF DECODING TRANSFORMANT COMPONENTS BY THE DIAGONAL-LOCATION FORMAT
DOI:
https://doi.org/10.18372/2310-5461.68.19047Keywords:
video content, , infocommunication network, decoding, transformant, restoration of video imagesAbstract
The article shows that the transmission of video data with increasing bit intensity is organized on the basis of infocommunication networks of the wireless segment. A characteristic feature of such types of network technologies is their limited performance in terms of data transmission speed. This forms a imbalance in the process of ensuring sufficient quality of video content. The cause of the imbalance is the insufficient level of data transmission speed in networks relative to the bit intensity of video data according to modern customer requirements. Localization of the insufficient level of data transmission speed is possible by applying technologies for limiting the bit intensity of the video stream. The main result regarding compression for these technologies is based on removing the amount of psychovisual redundancy. The consideration of psychovisual redundancy is implemented during: macro-formatting of video images; transforming the video image into the spectral domain; quantization of spectral coefficients. However, such transformations have signs of a lossy nature. This is the reason for the appearance of characteristic compression artifacts, which cause violations of the structural and semantic content and the nature of relationships between the components of video images. Therefore, the necessity of developing compression methods with the presence of mechanisms for restoring video data with the required level of semantic integrity is shown. For the purpose of improving compression technologies in the direction of ensuring the required level of compression under conditions of preserving compression properties, one can outline approaches based on developing compression processes with localization of the influence of the psychovisual component on achieving the level of video data compression. Among the implementations of the approach regarding reducing the influence of the amount of psychovisual redundancy on the level of compression is the coding method in the diagonal-spectral location format. At the same time, restoration processes for such code structures have an insufficient technological basis. A method has been developed for restoring video data in the location-diagonal format of transformed segments of the video image. This makes it possible to ensure the required level of semantic integrity of the restored video data in the truncated-positional basis without loss of compression properties under conditions of localizing the influence of the amount of removed psychovisual redundancy on the level of bit-volume reduction.
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