Function SCAT_FREQ

Package

Short description

Usage

    [S, U] = scat_freq(X, Wop)

Input

    X (cell): A cell array of scattering layers with, such as the output S
       of the SCAT function.

Output

    S, U (cell): The scattering and wavelet modulus coefficients, respective-
       ly, of the input representation X, transformed along first frequency
       lambda1.

Description

    For each order of the input representation X, the coefficients are group-
    ed according to higher-order frequencies lambda2, lambda3, with each
    group ordered along lambda1, obtained by calling CONCATENATE_FREQ. Then 
    the scattering transform defined by Wop by calling SCAT is applied along
    this lambda1 axis. The results are then retransformed, separating the
    different first frequencies lambda1 into different coefficients, as in 
    the original representation.
    The meta fields of the frequential scattering transform are stored in the
    output with the prefix 'fr_', so 'order' becomes 'fr_order', 'j' becomes
    'fr_j', and so on.

See also

• scat
• wavelet_factory_1d
• concatenate_freq