Fusion of median and bilateral filtering for range image upsampling.

We present a new upsampling method to enhance the spatial resolution of depth images. Given a low-resolution depth image from an active depth sensor and a potentially high-resolution color image from a passive RGB camera, we formulate it as an adaptive cost aggregation problem and solve it using the bilateral filter. The formulation synergistically combines the median and bilateral filters thus it better preserves the depth edges and is more robust to noise.

Sensory and motor encoding strategies in n-back tasks: a simulation of schizophrenic working memory deficits in healthy subjects.

Aims: Different patterns of intact and disturbed working memory function can be observed in schizophrenic patients depending on the type of n-back task. We investigated whether these patterns can be induced in healthy subjects by experimentally preventing a motor encoding strategy.

Methods: Thirty-two healthy subjects were asked to solve 2 types of n-back task.

The cytoplasmic domain of tissue factor restricts physiological albuminuria and pathological proteinuria associated with glomerulonephritis in mice.

Background/aims: Tissue factor (TF) is a transmembrane protein that is essential for coagulation. TF is expressed on podocytes and its cytoplasmic domain has cell signalling functions in epithelial cells.

Methods: Mice lacking the cytoplasmic domain of TF (TF(CT-/-) mice) were used to study its role in physiological albuminuria and pathological proteinuria following induction of glomerulonephritis (GN).

A role for nitroxyl (HNO) as an endothelium-derived relaxing and hyperpolarizing factor in resistance arteries.

Background And Purpose: Nitroxyl (HNO) is emerging as an important regulator of vascular tone as it is potentially produced endogenously and dilates conduit and resistance arteries. This study investigates the contribution of endogenous HNO to endothelium-dependent relaxation and hyperpolarization in resistance arteries.

Experimental Approach: Rat and mouse mesenteric arteries were mounted in small vessel myographs for isometric force and smooth muscle membrane potential recording.

Postprocessing for very low bit-rate video compression.

This paper presents a novel postprocessing algorithm developed specifically for very low bit-rate MC-DCT video coders operating at low spatial resolution, postprocessing is intricate in this situation because the low sampling rate (as compared to the image feature size) makes it very easy to overfilter, producing excessive blurring. The proposed algorithm uses pixel-by-pixel processing to identify and reduce both blocking artifacts and mosquito noise while attempting to preserve the sharpness and naturalness of the reconstructed video signal and minimize the system complexity. Experimental results show that the algorithm successfully reduces artifacts in a 16 kb/s scene-adaptive coder for video signals sampled at 80 x 112 pixels per frame and 5-10 frames/s.