Deblocking effect method and device based on pseudo-analog video transmission

Abstract

The invention relates to a deblocking effect method and device based on pseudo-analog video transmission. The method comprises the following steps of: 1) acquiring a noisy picture in a pseudo-analog video transmission process; 2) sequentially performing block matching and transform domain collaborative filtering based on hard threshold filtering on the noisy picture, thereby obtaining the noisy picture after brightness adjustment; 3) sequentially carrying out block matching and transform domain collaborative filtering based on hard threshold filtering on a noise-containing picture after brightness adjustment so as to obtain a noisy picture after basic estimation; 4) performing block matching on the noise-containing picture after basic estimation to obtain basic estimation groups; extracting a to-be-processed group from the noise-containing picture after brightness adjustment according to the coordinates of the basic estimation group; and performing Wiener filtering-based transform domain collaborative filtering on the to-be-processed packet to obtain a final image. Compared with the prior art, the method has the advantages that the blocking effect in pseudo-analog video transmission is removed, and the accuracy of pseudo-analog video transmission is improved.

Description

technical field [0001] The invention relates to the field of pseudo-analog video transmission, in particular to a method and device for deblocking effect based on pseudo-analog video transmission. Background technique [0002] Since the 4G era, the traffic occupied by mobile video in communication has increased exponentially. Whether current wireless communication technologies, such as WiFi, WiMax and LTE, can provide scalable and fault-tolerant mobile video is one of the current research hotspots. Therefore, improving the existing video transmission scheme is a mainstream trend in the development of the mobile communication industry. Existing wireless video transmission schemes use a coding method in which source-channel coding is separated. Source coding is used to compress video to eliminate redundant information in both time and space. [0003] If the compression rate of the video codec is high, all that remains is valid information, which makes the reconstructed vide...

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