A new technique of spatio-temporal scalability coding is considered for video with bitrates of order of megabits per second. Both temporal and spatial resolutions are reduced for data transmitted in a base layer. The temporal resolution reduction is obtained by placing each second frame (B-frame) in the enhancement layer. The enhancement layer includes also high-frequency spatial subbands from ...

Foraging rats learned to avoid footshock that was present in a part of a circular arena that was either stable or rotating slowly in a lighted room. The rotation dissociated spatial information in the separate reference frames of the room and arena. After learning to avoid the shocked region in either condition, in the absence of shock, memory for this place was expressed by simultaneous avoida...

UNLABELLED We report here a unique case of a 3 year neglected rotatory tibiofemoral dislocation associated with a lateral patellar dislocation. The rotational deformity was gradually corrected using a Taylor spatial frame and the patella was realigned by tibial tubercle osteotomy and transfer. The patient also underwent multiple soft tissue releases and quadricepsplasty to improve knee flexion....

We give the rate distortion function for three image sequence coders: intra-frame, interframe and motion compensating inter-frame. The intensity function distribution is assumed to be Gaussian, and we suppose spatio-temporal separability and an isotropic model for the spatial part of the intensity function. We give quantitative results justi ng the use of the above three coding modes in an imag...

As different frame lost will lead to different distortion for stereoscopic video sequence, we take into account the temporal and spatial correlation of stereo video, error diffusion characteristics left and of right view frame, as well as recursion theory. Based on the above, we put forward a frame important distinction model of stereoscopic video based on content. The experimental results show...

The human visual system appears to be capable of temporally integrating information in a video sequence in such a way that the perceived spatial resolution of a sequence appears much higher than the spatial resolution of an individual frame. While the mechanisms in the human visual system that do this are unknown, the effect is not too surprising given that temporally adjacent frames in a video...

In the computation of dense optical flow fields, spatial coherence constraints are commonly used to regularize otherwise ill-posed problem formulations, providing spatial integration of data. In this paper we present a temporal, multi-frame extension of the dense optical flow estimation formulation proposed by Horn and Schunck [1] in which we use a temporal coherence constraint to yield the opt...

We developed ultra-high-speed, phase-sensitive, full-field reflection interferometric confocal microscopy (FFICM) for the quantitative characterization of in vivo microscale biological motions and flows. We demonstrated 2D frame rates in excess of 1 kHz and pixel throughput rates up to 125 MHz. These fast FFICM frame rates were enabled by the use of a low spatial coherence, high-power laser sou...

Generally moving object extraction schemes rely on either optical flow or frame difference. Though optical flow based methods can deal with moving camera situation with ease, the inconsistency at object boundaries causes extraction with inaccurate object boundaries. While frame difference approach, such as three frame difference, yields accurate object boundaries, it usually cannot deal with mo...

PURPOSE To achieve high temporal frame rate, high spatial resolution and full-vocal-tract coverage for three-dimensional dynamic speech MRI by using low-rank modeling and sparse sampling. METHODS Three-dimensional dynamic speech MRI is enabled by integrating a novel data acquisition strategy and an image reconstruction method with the partial separability model: (a) a self-navigated sparse sa...