Polyscape hence offers a means for prioritising existing feature preservation and identifying opportunities for landscape change.
All the experiments prove that our CAD gives improved result in terms of feature preservation, speckle reduction, and edge enhancement.
The weight factor β is positive and it determines the amount of speckle smoothing, point and linear feature preservation.
The experimental results show that our proposed CAD method provides better speckle reduction, edge enhancement, and feature preservation.
An effective algorithm is also developed, for the purpose of feature preservation, to automatically determine the weight from the given data.
In this example, our proposed CAD comparatively provides better visual enhancement, point feature preservation and also avoids blocky effects and feature broadening problem.
As a result, our approach inherits the advantages of image bilateral filtering techniques and is able to effectively smooth B-spline surfaces with feature preservation as demonstrated by various examples.
The limitation of the proposed method is the redundancy of the wavelet coefficients which can be reduced by incorporating global feature preservation techniques like principal component analysis (PCA) or linear discriminant analysis (LDA) [32] with the wavelet transform as in many object and face detection methods.
This paper proposes a radically different approach to constructing fair B-spline surfaces, which consists of fitting a surface without a fairing term to capture sharp edges, smoothing the normal field of the constructed surface with feature preservation, and reconstructing the B-spline surface from the smoothed normal field.
A street-end may feature preservation of viewpoints, improvements such as public gardens, or enhanced safety measures (e.g., landscaping, lighting or fencing from danger).
