نتایج جستجو برای: blink detection
تعداد نتایج: 568580 فیلتر نتایج به سال:
This paper presents an approach for real-time remote detection of eyeblink parameters. First, a combination of boosted classifiers and LucasKanade tracking is used to follow the movement of face and eyes. Then, detailed eye movement is described by normal flow. Finally, a discrete finite state machine is used to detect eye-blinks. The proposed approach is evaluated on a series of short video se...
OBJECTIVE To check the existence of an association between the presence/absence of the blink reflex habituation in the neonatal period and auditory processing development. METHODS The occurrence of blink reflex habituation was studied in 33 neurologically normal neonates, aged between 9 and 25 months, who had their behavioral responses analyzed and classified according to Azevedo (1993). Habi...
The attentional blink is the marked deficit in awareness of a 2nd target (T2) when it is presented shortly after the 1st target (T1) in a stream of distractors. When the distractors between T1 and T2 are replaced by even more targets, the attentional blink is reduced or absent, indicating that the attentional blink results from online selection mechanisms that act in response to distracting inp...
It is well established that emotional distractors enhance attentional control in demanding tasks such as the classic attentional blink paradigm (Olivers & Nieuwenhuis, 2005; Sussman, Heller, Miller, & Mohanty, 2013). By inducing a range of moods using music and memory generation, it has also been shown that the interaction of emotional valence and level of arousal have unique effects on second-...
In Computer Mediated Communication, static video cameras provide a restricted field of view of remote sites. The concept of virtual window has been introduced to alleviate this problem. Although this technique is interactionally attractive, early implementations have proved unsatisfactory because of lack of robustness. In this paper, we demonstrate that robustness and accuracy can be increased ...
Headaches are one of the most common ailments in modern society, leading to severe diminishing of general activities and they result in significant impact on the patient's quality of life. Blink reflex is an objective neurophysiological method for determining the status of the trigeminal system, facial nerve and the lateral part of medulla oblongata. The aim of this study was to examine the con...
Participants in 2 experiments performed 2 simultaneous tasks: one, a dual-target detection task within a rapid sequence of target and distractor letters; the other, a cued reaction time task requiring participants to make a cued left-right response immediately after each letter sequence. Under these rapid visual presentation conditions, it is usually difficult to identify the 2nd target when it...
The Blink project’s ambitious goal is to answer all Business Intelligence (BI) queries in mere seconds, regardless of the database size, with an extremely low total cost of ownership. Blink is a new DBMS aimed primarily at read-mostly BI query processing that exploits scale-out of commodity multi-core processors and cheap DRAM to retain a (copy of a) data mart completely in main memory. Additio...
Hyperexcitable reflex blinks are a cardinal sign of Parkinson's disease. We investigated the neural circuit through which a loss of dopamine in the substantia nigra pars compacta (SNc) leads to increased reflex blink excitability. Through its inhibitory inputs to the thalamus, the basal ganglia could modulate the brainstem reflex blink circuits via descending cortical projections. Alternatively...
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