发明授权
- 专利标题: Deghosting method and apparatus for construction of image mosaics
- 专利标题(中): 图像马赛克构造的脱色方法和装置
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申请号: US905103申请日: 1997-08-01
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公开(公告)号: US5986668A公开(公告)日: 1999-11-16
- 发明人: Richard Szeliski , Heung-Yeung Shum
- 申请人: Richard Szeliski , Heung-Yeung Shum
- 申请人地址: WA Redmond
- 专利权人: Microsoft Corporation
- 当前专利权人: Microsoft Corporation
- 当前专利权人地址: WA Redmond
- 主分类号: G06T3/40
- IPC分类号: G06T3/40 ; G06T7/00 ; G06F15/00
摘要:
The invention is embodied in a deghosting method and apparatus which locally aligns individual images in a set of overlapping images of a mosaic. This is accomplished by determining, at plural predetermined pixel locations of each one of the images, motions between the one image and other images of the set, combining the motions to produce an estimated motion at each of the plural predetermined pixel locations of the one image, and then warping the one image in accordance with the estimated motions. Preferably, it is first which of the images of the set overlies the one image. This determination is made by determining alignment transformations relating the images to a 3-dimensional coordinate system and then inferring mutual overlap between images from the transformations. The images are resampled in accordance with these alignment transformations. The warping of each image is accomplished by constructing a mapping of warped pixel locations from the estimated motions and then resampling the one image at the warped pixel locations. The mapping is preferably a reverse mapping of pixels in an unwarped version of the one image.
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