Compared with spatial domain motion compensated temporal filtering (MCTF) scheme, in-band MCTF scheme needs more coding bits for motion information since the motion estimation (ME) and motion compensation (MC) are implemented on each spatial subband. Therefore, how to employ motion prediction and coding is a key problem to improve the coding efficiency of in-band MCTF. In this paper, we propose...

Simultaneous frequency and direction-of-arrival (DOA) estimation can be formulated as a 2D processing problem or as a set of coupled 1D problems. In narrow-band cases the 2D approach can be used to remove the need for frequencyDOA pairing procedures but the price can be a considerably higher computational cost. Therefore, the 1D approach a viable alternative in many applications. This paper pre...

Wyner-Ziv video coding is a coding method that exploits source statistics at the decoder. Many Wyner-Ziv video coding schemes encode a video sequence into two types of frames, key frames and Wyner-Ziv frames, and rely on the frequent use of INTRA frames as key frames such that the decoder can derive sufficiently accurate side information. While the use of INTRA frame as key frames keeps the enc...

This paper presents an efficient segmentation approach for non-rigid video object. We propose to formulate the video object segmentation problem as the maximum a posteriori probability (MAP) problem and define the probabilistic models in terms of the object’s density function. Furthermore, in order to accurately represent the density function for video object with arbitrary shape and complex te...

When highly-accurate and/or assumption-free density estimation is needed, nonpara-metric methods are often called upon-most notably the popular kernel density estimation (KDE) method. However, the practitioner is instantly faced with the formidable computational cost of KDE for appreciable dataset sizes, which becomes even more prohibitive when many models with diierent kernel scales (bandwidth...

Experimental designs for event-related functional magnetic resonance imaging can be characterized by both their detection power, a measure of the ability to detect an activation, and their estimation efficiency, a measure of the ability to estimate the shape of the hemodynamic response. Randomized designs offer maximum estimation efficiency but poor detection power, while block designs offer go...