We present an acoustic musical instrument played through a resonance model of another sound. The resonance model is controlled in real time as part of the composite instrument. Our implementation uses an electric violin, whose spatial position modifies filter parameters of the resonance model. Simplicial interpolation defines the mapping from spatial position to filter parameters. With some eff...

Introduction One of the most important pre-processing steps in optical coherence tomography (OCT) is reducing speckle noise, resulting from multiple scattering of tissues, which degrades the quality of OCT images. Materials and Methods The present study focused on speckle noise reduction and edge detection techniques. Statistical filters with different masks and noise variances were applied on ...

An efficient multi-filter retrieval framework for image retrieval in large image databases is proposed. Multiple filters are used to reduce the search ranges at different stages and thus save the time spent on unnecessary similarity comparison. First, a color label histogram filter uses a color label histogram with only thirteen bins to eliminate those images in the image database that are diss...

computer-aided diagnosis (cad) systems can assist radiologists in several diagnostic tasks.  lung segmentation is one of the mandatory steps for initial detection of lung cancer in posterior-anterior chest radiographs. on the other hand, many cad schemes in projection chest radiography may benefit from the suppression of the bony structures that overlay the lung fields, e.g. ribs. the original ...

In this paper, a spatio-spectral-temporal filter considering an inter-channel correlation is proposed for the denoising of a color filter array (CFA) sequence acquired by CCD/CMOS image sensors. Owing to the alternating under-sampled grid of the CFA pattern, the inter-channel correlation must be considered in the direct denoising process. The proposed filter is applied in the spatial, spectral,...

114 LLE Review, Volume 78 Vacuum surface damage to fused-silica, spatial-filter lenses is the most prevalent laser-damage problem occurring on the OMEGA laser system. Approximately one-half of the stage-Cinput and output, D-input, E-input, and F-input spatial-filter lenses are currently damaged with millimeter-scale fracture sites. With the establishment of safe operational damage criteria, las...

An earth model is used in a collaborative environment in which some members provide information for its construction and others utilize the result. Validating an earth model by simulating a migration image is an important step. However, the high computational cost of generating 3D synthetic data, followed by the process of migration, limits the number of scenarios that can be validated. To over...

The spatial query has been processed in two steps, the filter step and the refinement step, due to a large volume and high complexity of the spatial data. However, this approach has been considered only in the query execution phase after completing the query optimization phase. This paper presents query optimization strategies which take the characteristics of spatial databases into account. Th...

CDMA systems are interference limited and therefore efficient interference management is necessary to enhance the capacity of a CDMA system. In this paper; we consider combining two effective receiver based interjerence management strategies: multiuser detection (temporal filtering) and receiver beamfoming (spatial$ltering). We formulate and examine the performunee of several linear filter stru...

In Lecture 2 we have learned about matched filtering. We made a number of hypotheses, including that the ‘signal’ is constant, even if it is possibly corrupted by noise. Two questions arise: how do we estimate the signal from noisy examples? (Simple answer: average the examples). What do we do when the signal is not constant? The answer to this second question is more complicated and depends on...