Category: software_fs

Interactive Sparse Astronomical Data Analysis Packages

iSAP is a collection of packages, in IDL and C++, related to sparsity and its application in astronomical data analysis (the IDL software (http://www.idl-envi.com) is analogous to Matlab and is very widely used in astrophysics and in medical imaging). The C++ routines can be used independently of IDL.

The iSAP V3.1 software, including all these packages, can be downloaded here: ISAP_V3.1.
The documentation of iSAP is available in PDF format: doc_iSAP_V3.0

It contains the following packages:

• Sparse2D V1.0: Sparsity for 1D and 2D data sets
  IDL and C++ code, allowing sparse decomposition, denoising and deconvolution.
   
• MSVST V1.0: Multi-Scale Variance Stabilizing Transform for 1D and 2D data sets
  IDL and C++ code for Poisson noise removal. Matlab code can also be found here.
   
• MRS V3.2: MultiResolution on the Sphere
  IDL and C++ code for sparse representation on the sphere. More details can be found here.
   
• SparsePOL V1.1: Polarized Spherical Wavelets and Curvelets
  IDL code for sparse representation of polarized data on the sphere. More details can be found here.
   
• MRS-MSVSTS V1.1: Multi-Scale Variance Stabilizing Transform on the Sphere
  IDL code for Poisson noise removal and deconvolution on mono-channel and multichannel spherical data. More details can be found here.
   
• SparseGal V1.0: Sparsity for galaxies survey analysis
  IDL code, with two subpackages:
  • ISW V1.0: Integrated Sachs-Wolfe effect detection.
  • DarthFader V1.0: Spectroscopic Redshift Estimation using sparsity.
• SparseCMB V1.0: Sparsity for CMB data analysis
  IDL code, with three subpackages:
  • TOUSI V1.0: True Cosmic Microwave Background Power Spectrum Estimator.
  • Anomalies V1.0: CMB large scale anomalies detection.
  • PRISM V1.0: Sparse Recovery of the Primordial Power Spectrum.