Image compression based on block-based Discrete Cosine Transform (BDCT) inevitably
produces annoying blocking artifacts because each block is transformed and quantized …

Error concealment techniques are very important for video communication since
compressed video sequences may be corrupted or lost when transmitted over error-prone …

The paper develops a tomographic reconstruction and regularization method based on a
total variation minimization constrained by the knowledge of the input intervals the Fourier …

Single image matting techniques assume high-quality input images. The vast majority of
images on the web and in personal photo collections are encoded using JPEG …

The purpose of video enhancement is to improve the subjective picture quality. The field of
video enhancement includes a broad category of research topics, such as removing noise in …

La transformée en ondelettes a été introduite ces dernières années dans le domaine du
traitement des données multimédia car elle permet une représentation compacte des …

A new HVS-inspired Total Variation (TV) method is proposed for jointly reducing blocking
and ringing effects. The key idea is to adapt the TV problem to each relevant content of the …

We present a simple framework for solving different ill-posed inverse problems in image
processing by means of constrained total variation minimizations. We argue that drawbacks …

Images encoded at low bit rate usually exhibit visually annoying coding artifacts, commonly
referred as the blocking artifacts. The reason for causing blocking artifacts is that each 8× 8 …

In this paper, a new perceptually adaptive method for reducing the blocking and ringing
artifacts encountered in image compression is proposed. The method consists of three …