Motion smear is an important visual cue for motion perception by the human vision system (HVS). However, in image analysis research, exploiting motion smear has been largely ignored. Rather, motion smear is usually considered as a degradation of images that needs to be removed. In this paper, we establish a computational model that estimates image motion from motion smear information--"motion f...

Background: Microscopic smear examination is the most common test in tuberculosis (TB) detection. It is, however, not strong enough to identify TB in the majority of afflicted individuals; thus, a significant number of TB patients are smear negative and capable of transmitting the infection. The aim of this study was to evaluate the rate of smear-negative TB in northwest Iran.Methods: In this c...

BACKGROUND Prison conditions can favor the spread of tuberculosis (TB). This study aimed to evaluate in a Brazilian prison: the performance and accuracy of smear, culture and Detect-TB; performance of smear plus culture and smear plus Detect-TB, according to different TB prevalence rates; and the cost-effectiveness of these procedures for pulmonary tuberculosis (PTB) diagnosis. METHODS This p...

BACKGROUND In patients with HIV and tuberculosis (TB) in resource-constrained settings, smear-negative disease has been associated with higher mortality than smear-positive disease. Higher reported mortality may be due to misdiagnosis, diagnostic delays, or because smear-negative disease indicates more advanced immune suppression. METHODS We analyzed culture-confirmed, pulmonary TB among pati...

Moving stimuli produce less smear than would be expected on the basis of visible persistence lasting 100-150 msec. Two experiments examined the duration of smear as a function of background luminance, target velocity, and duration ofthe display. It was found that smear decreased as background luminance increased, smear increased with velocity, and, as display duration increased from 10 to 160 m...

OBJECTIVE Due to the low sensitivity of Pap smear, premalignant lesions of the cervix can be missed in women with inflammatory Pap smears. However, it is not practically possible to subject all women with inflammatory Pap smear to colposcopy. This study was carried out with the aim to evaluate whether women with persistent inflammation on Pap smear need further evaluation with colposcopy. MAT...

Root canal instrumentation produces a layer of organic and inorganic material called the smear layer that may also contain bacteria and their by-products. It can prevent the penetration of intracanal medicaments into dentinal tubules and influence the adaptation of filling materials to canal walls. This article provides an overview of the smear layer, focusing on its relevance to endodontics. T...

A Pap smear, also known as Papanicoloau smear, is a microscopic examination of cells scraped from the cervix and is used to detect cancerous or pre-cancerous conditions of the cervix or other medical conditions. It was named after Dr. George N. Papanicoloau, who first described it in 1928 and since its introduction, the Pap smear has helped reduce cervical cancer incidence and mortality rates b...