Sentence examples for coherent imaging from inspiring English sources

Hence multiplicative noise removal is of momentous significance in coherent imaging systems and various image processing applications.

As was explained above, because of the coherent imaging of the system, the image and object fields are linearly related, and thus the concept of a linear transfer function is only applicable in the field regime.

It is worth noting that these methods are general multivariate statistical techniques for covariate product model analysis and can be generally applied to single, dual, quad, and combined (stacked) dual frequency SAR images, or any type of coherent imaging system.

For coherent imaging, we consider the object and image to be described by electric fields, and we call the PSF the coherent PSF.

In our coherent imaging system, where the object and image field are linearly related and assuming an object with positive and real transmittance, we define an analogous equation to map out a coherent system's amplitude transfer function, m * = I max − I min I max + I min (12 where we make use of the fact that the field amplitude is the square-root of the intensity.

The largest source of noise in a SAR image is the speckle noise that is caused by the interaction of the coherent imaging radar beam and the relatively rough surface being imaged.

The PSF of the objective lens in non-coherent imaging is given by the intensity distribution of a beam focused by the objective lens [19].

In the recent 5-year, for the lower atmosphere, multi-receiver coherent radar imaging and multi-frequency range imaging are applied to observe small-scale structures in the troposphere and the field-aligned plasma irregularities in the ionosphere (Chen et al. 2014a, b, 2015).

Hard X-rays have also been used in coherent diffractive imaging [13] with high sensitivity, lens-less imaging with an extended source [14], and phase contrast imaging [15] using polychromatic hard X-rays [16].

Improvement of spatial coherence in third generation synchrotron beamlines made possible the development of X-ray plane-wave coherent diffraction imaging technique (plane-wave cdi), which enables 3D imaging at nanometric resolution.

The optical coherent tomography (OCT) is a new imaging detection technology.