Motion compensation is widely used in many video coding standards. Due to its bandwidth requirement and complexity, motion compensation is one of the most challenging parts in the design of high definition video decoder. In this paper, we propose a high performance and low bandwidth motion compensation design, which supports H.264/AVC, MPEG-1/2 and Chinese AVS standards. We introduce a 2-Dimens...

Motion compensation is an important part of SAR processing for high resolution airborne sensors, such as those flown on UAS’s. The non-ideal motion of the platform results in degraded image quality, but for known motion, corrections can be made. Traditional motion compensation requires a computationally costly interpolation step to correct translational motion greater than a single range bin. T...

The pel-recursive approach to motion estimation has been widely studied for compensating progressively scanned, moderate-resolution video. Although pel-recursive algorithms may not be suitable for application to interlaced high-definition television (HDTV), the underlying principle of backward motion compensation, upon which pel-recursive algorithms are based, can be exploited to improve existi...

The block-matching algorithm is the most popular motion compensation technique in video coding. However, it cannot provide acceptable quality at very low bit rate. In this paper, a new mesh-based motion compensation method is proposed to attack the problem. First, a regular non-uniform mesh, which has regular structure with variable patch size, is presented. The patch size is varied according t...

This paper investigates video coding with wavelet transforms applied in the temporal direction of a video sequence. The wavelets are implemented with the lifting scheme in order to permit motion compensation between successive pictures. We generalize the coding scheme and permit motion compensation from any even picture in the GOP by maintaining the invertibility of the inter-frame transform. W...

OBJECTIVE To assess the feasibility of renal proton magnetic resonance spectroscopy for quantification of triglyceride content and to compare spectral quality and reproducibility without and with respiratory motion compensation in vivo. MATERIALS AND METHODS The Institutional Review Board of our institution approved the study protocol, and written informed consent was obtained. After technica...

ABSTRACT Quad-tree structured motion-compensation technique effectively utilizes the motion content of a frame as oppose to fixed size block motion compensation technique. In this paper, we propose a novel quad-tree-structured region-wise motion compensation technique that divides a frame into equilateral triangle blocks using the quad-tree structure. Arbitrary partition shapes are achieved by ...

An efficient automatic detection strategy for aerial moving targets in airborne forward-looking infrared (FLIR) imagery is presented in this paper. Airborne cameras induce a global motion over all objects in the image, that invalidates motion-based segmentation techniques for static cameras. To overcome this drawback, previous works compensate the camera ego-motion. However, this approach is to...

Motion-adaptive radiotherapy techniques are promising to deliver truly ablative radiation doses to tumors with minimal normal tissue exposure by accounting for realtime tumor movement. However, a major challenge of successful applications of these techniques is the realtime prediction of breathing-induced tumor motion to accommodate system delivery latencies. Predicting respiratory motion in re...