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57 lines
3.1 KiB
57 lines
3.1 KiB
## Introduction
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This project is a generic framework for globally consistent alignment of images captured from approximately planar
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scenes via topology analysis. Specifically, it can resist the perspective distortion meanwhile preserving the local
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alignment accuracy. To guanrantee the alignment accuracy, global topological relations of images are searched firstly,
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and then a global optimization on alignment parameters are performed.
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This C++ implemented algorithm is described in
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"[Globally Consistent Alignment for Planar Mosaicking via Topology Analysis](http://menghanxia.github.io/papers/2017_Planar_Alignment_pr.pdf)", Pattern Recognition (PR), Jan. 2017.
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Notice: This program is free for personal, non-profit and academic use.
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All right reserved to CVRS: http://cvrs.whu.edu.cn/.
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If you have any question, please contact: menghanxyz@gmail.com (Menghan Xia)
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Here is an example for demonstration below (image topological graph and alignment result):
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<img src="docs/demo.png" width="900px"/>
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## Usage
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### Dependent Libarary [compulsory]:
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OpenCV 2.4.9 is recommended.
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### 1. Project Configure:
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This procedure is developed on *Visual Studio 2010* under *Windows 8.1* system environment,
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where the source code is organized with CMakeLists. So, before opening it in Visual Studio,
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you need to configure the project with *CMake*.
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### 2. Running and Test:
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2.1 Default folders in "*data*":
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- "*Images*" : put your source images in it.
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- "*Cache*" (optional) : used to store those intermediate results (feature points files, matching point files, topological matrix, etc) that
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are required by the final alignmnet optimization.
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2.2 Running parameter settings:
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- Set your reference image for alignment: 【Variable '*refNo*'】 [line 16] in [main.cpp](./source/Src/Mosaic/main.cpp).
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e.g. refNo=-1 means that the program will automatically selects a reference via topological analysis.
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- Set whether your image set is sequential order or not: 【Variable '*isSeqData*'】 [line 38] in [main.cpp](./source/Src/Mosaic/main.cpp)
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- Set whether the image keypoints available in [*Cache*](./data/Cache): 【Variable '*loadKeyPts*'】 [line 39] in [main.cpp](./source/Src/Mosaic/main.cpp)
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- Set whether the inter-image overlap relations available in [*Cache*](./data/Cache): 【Variable '*loadTopology*'】 [line 40] in [main.cpp](./source/Src/Mosaic/main.cpp)
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Besides, to use our preset working directory successfully, do not forget to UPDATE the path variable
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'*baseDir*' as **the absolute path** of your directory "*data*" in the source file [source/Src/Utils/util.h](./source/Src/Utils/util.h) [line 16]
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So far, you can run the procedure and check the alignment/stitching results now.
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## Citation
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If any part of our paper and code is helpful to your work, please generously cite with:
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```
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@article{DBLP:journals/pr/XiaYXLZ17,
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author = {Menghan Xia and Jian Yao and Renping Xie and Li Li and Wei Zhang},
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title = {Globally consistent alignment for planar mosaicking via topology analysis},
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journal = {Pattern Recognit.},
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volume = {66},
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pages = {239--252},
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year = {2017}
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}
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```
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