Exact(1)
Inclusion of lead characteristic X-rays was therefore considered to increase image acquisition counts without significantly decreasing the image contrast between lesion and background, as shown in Fig. 3. Neither attenuation nor scatter corrections were performed for Ra-223 SPECT in the present study.
Similar(7)
Distortion can be reduced by decreasing the read-out time – either by increasing image acquisition speed or by reducing the field of view in the phase encode direction.
Respiratory triggering may be used to reduce image blurring (Fig. 13b), but increases image acquisition time.
When we wish to analyse our data with respect to complex decay models, we can either increase the image acquisition times to 10 100 s per field of view in order to detect sufficient photons per pixel or we can acquire fluorescence data as for monoexponential decay fits and apply image segmentation and binning to reach a sufficient number of detected photons.
The low signal-to-noise ratio (SNR) makes structural proton MRI of the lung microstructure challenging: to increase the SNR, signal averaging can be employed, but this increases the image acquisition times beyond 10 min per data set, which would make the protocols unsuitable for clinical routine.
Similarly, it should enable the acquisition of higher-resolution (larger matrix) images with only minor increases in image acquisition time.
Indeed, for either of these SDOCT systems, averaging based denoising dramatically increases the image acquisition time.
This strategy allows us to reduce the noise disturbance in the dictionary learning process, which we expect to enhance the denoising outcome, without significantly increasing the image acquisition time.
Related(1)
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