Pressure measurements through image analysis
نویسندگان
چکیده
منابع مشابه
Oscillometric blood pressure measurements: A signal analysis
In this paper, the oscillometric waveform measured by automatic non-invasive blood pressure meters (NIBP) is analyzed by transforming the data from the time domain to the frequency domain. The signal’s spectrum of the oscillometric waveform is in current literature badly understood or explored. The only known link between the oscillometric waveform and the blood pressure is the maximum of the o...
متن کاملSpatiotemporal Image Analysis for Fluid Flow Measurements
In this chapter, a framework will be presented for measuring and modeling transport processes using novel visualization techniques and extended optical flow techniques for digital image sequence analysis. In this way, parameters besides the 2-D xy velocity components can be extracted concurrently from the acquired 2-D image sequences, such as wall shear rates and momentum transport close to bou...
متن کاملSoil-Structure-Interaction: Analysis through measurements
In common buildings the soil-structure-interaction (SSI) is governed by the elastic behavior of the building. The best conditions to see the soil effect predominate would be a dynamic rigid body movement of a massive building. For this reason measurements were carried out on an old anti-aircraft tower from World War II on typical Viennese soil conditions. The dynamic properties of the soil coul...
متن کاملImage Measurements
Figure 2. Step edge and its equation where θ is the line angle and u(x) is the step function, i.e. u(x)=1 if x >0 and u(x)=0 otherwise. A discretized image is obtained from a camera after the lenses have possibly blurred the scene and each sensor have added its own sensor noise. Consider the sensor noise to be additive White Gaussian and the blur to be described by a Gaussian convolution with t...
متن کاملImage Segmentation and Reflection Analysis Through Color
In this paper, we present an approach to color image understanding that can be used to segment and analyze surfaces with color variations due to highlights and shading. We begin with a theory that relates the reflected light from dielectric materials, such as plastic, to fundamental physical reflection processes, and describes the color of the reflected light as a linear Combination of the colo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2009
ISSN: 1094-4087
DOI: 10.1364/oe.17.017996