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Everything about Compressed sensing

Signal processing technique

Compressed sensing is a signal processing technique for efficiently acquiring and reconstructing a signal by finding solutions to underdetermined linear systems. This is based on the principle that, through optimization, the sparsity of a signal can be exploited to recover it from far fewer samples than required by the Nyquist–Shannon sampling theorem. There are two conditions under which recovery is possible. The first one is sparsity, which requires the signal to be sparse in some domain. The second one is incoherence, which is applied through the isometric property, which is sufficient for sparse signals. Compressed sensing has applications in, for example, magnetic resonance imaging (MRI) where the incoherence condition is typically satisfied. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: Compressed sensingA 5-minute orientation
  2. Skim a recent paper: Terahertz Communications and Sensing for 6G and Beyond: A Comprehensive ReviewInfluential work since 2022
  3. Pick up a classic book: Sparse image and signal processingThe most-reprinted book on the subject
  4. Read the landmark paper: Compressed sensingCited 23,581 times
  5. Go sideways: Sparse dictionary learningA closely related topic
  6. Go sideways: Sparse approximationA closely related topic

📖 Definitions

Noun A signal processing technique for efficiently acquiring and reconstructing a signal, by finding solutions to underdetermined linear systems.

🗂️ The subject at a glance

  1. Overview
  2. History
  3. Method
  4. Applications

🏆 Landmark papers (most cited)

🆕 Influential since 2022

📚 Books worth reading

Ranked by number of editions on Open Library, a rough measure of how lasting a book is.

🔗 Related topics