In the other scenarios, which coefficients are missing and which are received can be readily determined from the location of that block within the image. Smoothed descriptions adopts the former technique.
Smoothed descriptions adopts the former technique.
Maximal smoothing Maximal smoothing takes advantage of the spatial smoothness of naturally occurring images by minimizing luminosity differences between adjacent pixels both within a block and across block boundaries. Each square represents a block When considering the block marked Theta, neighboring DC components are labeled as shown. This operation uses edge conditions from neighboring blocks to obtain an estimate of damaged coefficients, which minimizes the gradient across the damaged block s boundaries. 1544-1551, Oct. 1993. In all of the above techniques there has been no mention of how the loss of macroblocks is detected.