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Automatic Image Mosaic-Building Algorithm for Generating Facade Textures

2008; Springer Nature; Linguagem: Inglês

10.1007/978-3-540-87395-2_16

1863-2351

Yunsheng Zhang, Qing Zhu, Jie Yu, Yeting Zhang,

Image Enhancement Techniques

Our goal is to create seamless texture mosaics for photo-realistic modeling of building facades. This paper presents an automatic image mosaic algorithm that resolves both geometry and color in a wide variety of images. A geometrical preprocessing step based on vanishing geometry theory is first used to rectify the typical distortion of terrestrial imagery. Subsequently at least 4 evenly distributed corresponding points are extracted as tie points for solving the parameters of affine transformations between two adjoining images. A coarse-to-fine matching strategy with good reliability and efficiency is employed for the automatic extraction of tie points, where point features are extracted using the Harris operator at the top level of the image pyramid and by means of the SUSAN operator at the bottom level. For image auto-dodging, the color transfer algorithm in color space is introduced. Experimental results prove that the presented method is feasible and is robust to modeling repeated patterns in imaging building facades.