发明名称 |
Mosaicing documents for translation using video streams |
摘要 |
Aspects of the present disclosure propose techniques for reconstructing a document mosaic using video streams of the document. The streams provide information identifying a layout that relates sequential frames of a video to each other. Once the streams are captured using a mobile device, it is then possible to reconstruct a virtual view of the entire document as though it were taken with a single camera shot. The reconstructed virtual view of the document will be suitable as input to an optical character recognition engine, which can be used for translating the document. |
申请公布号 |
US8897598(B1) |
申请公布日期 |
2014.11.25 |
申请号 |
US201414225876 |
申请日期 |
2014.03.26 |
申请人 |
Google Inc. |
发明人 |
Ziegler Andrew Moore;Palm Leon G. |
分类号 |
G06K9/00;G06K9/62;G06T11/60 |
主分类号 |
G06K9/00 |
代理机构 |
Fish & Richardson P.C. |
代理人 |
Fish & Richardson P.C. |
主权项 |
1. A computer-implemented method comprising:
for each of a first image of a first view of an object and a second image of a second view of the object, generating a respective feature point descriptor for each of multiple feature points included in the image; determining that a quantity of one or more of the feature point descriptors from the first image that are (i) indicated as similar to one or more feature point descriptors associated within a predefined sub-region of the second image, and (ii) associated within a corresponding predefined sub-region of the first image, satisfies a quantity threshold; and based on determining that a quantity of one or more of the feature point descriptors from the first image that are (i) indicated as similar to one or more feature point descriptors associated within a same predefined sub-region of the second image, and (ii) associated within a same predefined sub-region of the first image, satisfies a quantity threshold, creating a mapping between the predefined sub-region of the first image and the predefined sub-region of the second image. |
地址 |
Mountain View CA US |