Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Super-resolution photoacoustic imaging via flow induced absorption
  fluctuations   In deep tissue photoacoustic imaging the spatial resolution is inherently
limited by the acoustic wavelength. We present an approach for surpassing the
acoustic diffraction limit by exploiting temporal fluctuations in the sample
absorption distribution, such as those induced by flowing particles. In
addition to enhanced resolution, our approach inherently provides background
reduction, and can be implemented with any conventional photoacoustic imaging
system. The considerable resolution increase is made possible by adapting
notions from super-resolution optical fluctuations imaging (SOFI) developed for
blinking fluorescent molecules, to flowing acoustic emitters. By generalizing
SOFI mathematical analysis to complex valued signals, we demonstrate
super-resolved photoacoustic images that are free from oscillations caused by
band-limited detection. The presented technique holds potential for
contrast-agent free micro-vessels imaging, as red blood cells provide a strong
endogenous source of naturally fluctuating absorption.

23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org