نتایج جستجو برای: three images dated 6
تعداد نتایج: 2316824 فیلتر نتایج به سال:
Displacement1 estimation is an essential step for ultrasound elastography and numerous techniques have been proposed to improve its quality using two frames of ultrasound RF data. This paper introduces a technique for calculating a displacement field from three frames of ultrasound RF data. To this end, we first introduce constraints on variations of the displacement field with time using mecha...
Three-dimensional holograms were recorded in a cerium-doped, strontium barium niobate (SBN:75) photorefractive crystal. These holograms are shown to not degrade after more than one week of continuous readout and to reconstruct reproductions of the original object with an observable field of view of approximately 35 degrees.
Background and Purpose: Using images is a requirement of medical education and evaluation of effect of type of image on learner could be helpful for medical education. The purpose of the present study is comparison of two dimensional and three dimensional images in neuroscience learning. Method: In present case control study, equal number of two dimensional and three dimensional images of neur...
Abstract. During the last interglacial (LIG) volume of additional water in world's oceans was large enough to raise global sea levels about 6–9 m higher than present levels. However, LIG vary regionally and those regional differences hold clues past distribution ice sheets local rates subsidence tectonic uplift. In this study, I used a standardized database template review summarize existing co...
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