A Fast and Efficient Spatial Error Concealment for Intra-coded Frames

Modifications to fast and efficient spatial error concealment technique for block-based video coding systems

“…This paper presents three different modifications on the fast and efficient spatial error concealment algorithm proposed in [1] by using bilinear and directional interpolations in order to achieve better subjective and objective quality. Experimental results indicate that the proposed algorithms are obviously subjectively and objectively superior to the original fast and efficient spatial error concealment algorithm proposed in [1]. …”

“…In this paper, we present three different modifications of the algorithm presented in [1] for enhancing subjective and objective qualities.…”

“…The first algorithm proposes a modified fast and efficient spatial error concealment algorithm, which utilizes the method proposed in [1] merged with the spatial error concealment technique used in H.264/AVC [2] to create a satisfactory restored image.…”

QoS in Telemedicine

“…Common compression artifacts such as blockiness (or block distortion), and blur (loss in the detail that occurs around edges, typically due to the quantization of transform coefficients representing higher frequencies) were also evaluated. The first test was done without any Intra-coded macro-blocks (MBs), and the second test was done with Intra-coded MBs, which are used in H.264 encoding to prevent error propagation (Shi et al, 2008). The results of the tests are presented in Figures 5, through 8, and Table 5.…”

Supplementary loss concealment technique for image transmission through data hiding

“…Several techniques considering the edges of the image have been reported to solve the problem [18,20]. A small neighborhood of correctly received pixels to find the directions of edges passing through the missing block was utilized [13,14]. Interpolation can be applied not only to the spatial domain but also to the spectral domain such as the discrete cosine transform (DCT) domain [3].…”