Feature matching and deformation for texture synthesis

Abstract

One significant problem in patch-based texture synthesis is the presence of broken features at the boundary of adjacent patches. The reason is that optimization schemes for patch merging may fail when neighborhood search cannot find satisfactory candidates in the sample texture because of an inaccurate similarity measure. In this paper, we consider both curvilinear features and their deformation. We develop a novel algorithm to perform feature matching and alignment by measuring structural similarity. Our technique extracts a feature map from the sample texture, and produces both a new feature map and texture map. Texture synthesis guided by feature maps can significantly reduce the number of feature discontinuities and related artifacts, and gives rise to satisfactory results.

Image Stitching Using Structure Deformation

“…Recently, feature-matching methods in texture synthesis are proposed in [13], [37]. In [37], binary feature maps are first produced by using a two-pass Canny edge filter.…”

“…In [37], binary feature maps are first produced by using a two-pass Canny edge filter. Then, a 2D feature-matching process is applied.…”

“…These complications may lead to an incorrect warping function. Moreover, since [37] is designed for texture synthesis, there is no provision for correcting intensity misalignment. In [13], a deformation function is introduced to simultaneously maximize color matches while minimizing deformation distortion over the overlapped area.…”

“…Structure misalignment causes image ghosting or blurring artifact, where a salient edge fades out as it enters the overlapped area and fades in just a few pixels away but in a shifted position. To align image features, nonparametric and patch-based techniques have been recently proposed in texture synthesis based on texture deformation [13], [37]. To synthesize a natural texture image, the detected features are matched and deformed inside the overlapped texture samples.…”

Optimal Sample Patches Selection for Tile-Based Texture Synthesis

“…Nowadays neighborhood-based methods are popularly used in texture synthesis, including point-based techniques [19,4,1] and patch-based techniques [3,9,20,12,8]. Hybrid texture synthesis method has also already been developed [13].…”