Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Correcting artifacts from finite image size in Differential Dynamic
  Microscopy   Differential Dynamic Microscopy (DDM) analyzes traditional real-space
microscope images to extract information on sample dynamics in a way akin to
light scattering, by decomposing each image in a sequence into Fourier modes,
and evaluating their time correlation properties. DDM has been applied in a
number of soft-matter and colloidal systems. However, objects observed to move
out of the microscope's captured field of view, intersecting the edges of the
acquired images, can introduce spurious but significant errors in the
subsequent analysis. Here we show that application of a spatial windowing
filter to images in a sequence before they enter the standard DDM analysis can
reduce these artifacts substantially. Moreover, windowing can increase
significantly the accessible range of wave vectors probed by DDM, and may
further yield unexpected information, such as the size polydispersity of a
colloidal suspension.

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The categories of this paper are: astro-ph
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The categories of this paper are: cs
30
The categories of this paper are: q-alg
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The categories of this paper are: q-bio
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The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
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The categories of this paper are: adap-org
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The categories of this paper are: mtrl-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: math-ph
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The categories of this paper are: stat
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The categories of this paper are: hep-th
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The categories of this paper are: alg-geom
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The categories of this paper are: quant-ph
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The categories of this paper are: acc-phys