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Francisco Romero Hinrichsen
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README.md

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@@ -23,7 +23,7 @@ For clear, deep, and mathematically correct explanations, please refer to
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incomplete description of the considered Energy and minimization problem, but
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it is enough to intuitively describe it.
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We look for solutions in the space of dynamic Radon measures, these are
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We look for **solutions** in the space of **dynamic Radon measures**, these are
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[Radon measure](https://en.wikipedia.org/wiki/Radon_measure) defined on
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time and space `[0,1] x Ω`.
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@@ -52,45 +52,45 @@ Since measure spaces are in particular vector spaces, given a family of weights
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ω<sub>i</sub> >0, and a family of curves γ<sub>i</sub>, we can now consider μ,
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a weighted sum of these transported Dirac deltas
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<p align="center">
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<img src="https://github.com/panchoop/DGCG_algorithm/blob/assets/tex/eq_5.gif" width="800">
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<img src="https://github.com/panchoop/DGCG_algorithm/blob/assets/tex/eq_5.gif" width="700">
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</p>
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which is also a dynamic Radon measure.
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The measures are "moving time continuously", but the measurements are gathered
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by sampling discretely in time. Fix those time samples as 0 = t<sub>0</sub> <
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t<sub>1</sub> < ... < t<sub>T</sub> = 1, then, at each time sample, the
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considered dynamic Radon measures are simply Radon measures. We therefore
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consider at each of these time samples t<sub>i</sub>, a forward operator
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mapping from the space of Radon measures, into some data space H<sub>i</sub>
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consider at each of these time samples t<sub>i</sub>, a **forward operator**
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mapping from the space of Radon measures, into some **data space** H<sub>i</sub>
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<p align="center">
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<img src="https://github.com/panchoop/DGCG_algorithm/blob/assets/tex/eq_6.gif" width="300">
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<img src="https://github.com/panchoop/DGCG_algorithm/blob/assets/tex/eq_6.gif" width="250">
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</p>
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Where at each time sample t<sub>i</sub>, the respective data spaces
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H<sub>i</sub> are allowed to be different. Theoretically, these data spaces
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are real [Hilbert spaces](https://en.wikipedia.org/wiki/Hilbert_space), numerically,
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these need to be finite dimensional.
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Given data gathered at each time sample f<sub>0</sub> ∈ H<sub>0</sub>,
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Given **data** gathered at each time sample f<sub>0</sub> ∈ H<sub>0</sub>,
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f<sub>1</sub> ∈ H<sub>1</sub>, ... f<sub>T</sub> ∈ H<sub>T</sub>, and given
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any dynamical Radon measure ν, the data discrepancy term of our minimization
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problem is
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<p align="center">
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<img src="https://github.com/panchoop/DGCG_algorithm/blob/assets/tex/eq_7.gif" width="400">
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<img src="https://github.com/panchoop/DGCG_algorithm/blob/assets/tex/eq_7.gif" width="350">
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</p>
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And putting together the data discrepancy term with the proposed
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energy J<sub>α, β</sub> to minimize, we build up the target
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functional that is minimized by our algorithm.
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<p align="center">
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<img src="https://github.com/panchoop/DGCG_algorithm/blob/assets/tex/eq_1.gif" width="500">
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<img src="https://github.com/panchoop/DGCG_algorithm/blob/assets/tex/eq_1.gif" width="600">
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</p>
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The energy J<sub>α, β</sub> will promote sparse solutions μ, and the proposed
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algorithm will return one such measure.
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The energy J<sub>α, β</sub> will promote sparse dynamic measures μ, and the
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proposed algorithm will return one such measure.
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To see an animated example of Dynamic sources, measured data, and obtained reconstructions,
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please see [this video](https://www.youtube.com/watch?v=daKkJZH3WD4).

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