论文标题
使用频率选择性外推到视频序列中的3D孔填充的优化处理顺序
Optimized processing order for 3D hole filling in video sequences using frequency selective extrapolation
论文作者
论文摘要
视频通信通常会出现的一个问题是视频序列中缺失或扭曲区域的重建。这样不可用的像素的孔可能是由编码视频数据的传输错误或徽标等不希望的对象引起的。为了关闭给定的可用内容的孔，必须执行信号外推。如果将空间和时间信息用于重建，则可以实现最佳质量。但是，问题始终是处理外推以获得最佳结果的顺序。在本文中，引入了优化的处理顺序，以提高三维频率选择性外推的外推质量。使用提出的优化顺序，视频序列中的孔可以从外边缘到中心封闭，从而导致更高的重建质量，并且可以在视觉上明显的增益超过0.5 dB psnr。
A problem often arising in video communication is the reconstruction of missing or distorted areas in a video sequence. Such holes of unavailable pixels may be caused for example by transmission errors of coded video data or undesired objects like logos. In order to close the holes given neighboring available content, a signal extrapolation has to be performed. The best quality can be achieved, if spatial as well as temporal information is used for the reconstruction. However, the question always is in which order to process the extrapolation to obtain the best result. In this paper, an optimized processing order is introduced for improving the extrapolation quality of Three-dimensional Frequency Selective Extrapolation. Using the proposed optimized order, holes in video sequences can be closed from the outer margin to the center, leading to a higher reconstruction quality, and visually noticeable gains of more than 0.5 dB PSNR are possible.
