2.2. Finite ridgelet transform
Recently, the curvelet and ridgelet transforms [27,28,24] have been generating a lot of interest due to their superior performance over wavelets. While wavelets have been very successful in applications such as denoising and compact approximations of images containing zero dimensional (point) singularities, they do not isolate the smoothness along edges that occurs in images because they lack flexible directionality. Wavelets are thus more appropriate for the reconstruction of sharp point-like singularities than lines or edges. These shortcomings of wavelets are well addressed by the ridgelet and curvelet transforms, as they extend the functionality of wavelets to higher dimensional singularities, and are effective
2.2. Finite ridgelet transformRecently, the curvelet and ridgelet transforms [27,28,24] have been generating a lot of interest due to their superior performance over wavelets. While wavelets have been very successful in applications such as denoising and compact approximations of images containing zero dimensional (point) singularities, they do not isolate the smoothness along edges that occurs in images because they lack flexible directionality. Wavelets are thus more appropriate for the reconstruction of sharp point-like singularities than lines or edges. These shortcomings of wavelets are well addressed by the ridgelet and curvelet transforms, as they extend the functionality of wavelets to higher dimensional singularities, and are effective
การแปล กรุณารอสักครู่..
