Traditional spatial-temporal adaptive signal processing techniques are often applied to conduct narrowband and wideband interferences. However, its mitigation performance degrades greatly due to mutual coupling. To solve this problem, this paper aims to utilize a spatial-temporal self-tuning synthesis filter capable of mutual coupling compensation and interference mitigation. The spatial filter...

When visual contrast changes, retinal ganglion cells adapt by adjusting their sensitivity as well as their temporal filtering characteristics. The latter has classically been described by contrast-induced gain changes that depend on temporal frequency. Here, we explored a new perspective on contrast-induced changes in temporal filtering by using spike-triggered covariance analysis to extract mu...

Although the delta and RASTA methods have been widely used in extracting the temporal properties of stationary features for robust speech recognition, there is still a need to investigate new temporal features for better performance. In this paper, we present two new temporal features for robust processing of speech signals with emphasis on microphone variations. First, the temporal feature is ...

Recently, several researchers have proposed using spatio-temporal filters for image motion analysis. For example, the optical flow field can be calculated from the output of a set of spatio-temporal filters. Some of the most popular spatio-temporal filters are the space-time Gabor filters, obtained by convolving a time varying image with a space-time Gabor function. Based on the cellular neural...

Colonoscopy is a popular procedure which used to detect an abnormality. Early diagnosis can help heal many patients. The purpose of this paper removing/reducing some artifacts improve the visual quality colonoscopy videos provide better information for physicians. This work complements series consisting three previously published papers. In paper, optic flow motion compensation, where number co...

Besides conveying linguistic information, spoken language can also transmit important cues regarding the emotion of a talker. These prosodic cues are most strongly coded by changes in amplitude, pitch, speech rate, voice quality and articulation. The present study investigated the ability of cochlear implant (CI) users to recognize vocal emotions, as well as the relative contributions of spectr...

Due to the recent growth of the World Wide Web, numerous spatio-temporal applications can obtain their required information from publicly available web sources. We consider those sources maintaining moving objects with predefined paths and schedules, and investigate different plans to perform queries on the integration of these data sources efficiently. Examples of such data sources are network...