如何检查语法、拼写错误
基本原则是：多遍检查，每遍仅检查一类错误。本着怀疑一切的态度，每个词语、每个搭配都检查，宁可错杀不要漏网的态度，才能把自己忽视的错误找到。
- 第一遍检查时态：确认整体文章的时态争取，没有混乱
- 第二遍检查The，a等定冠词、不定冠词：
the特指，a指某一个等等
- 第三遍检查一般语法错误，词语搭配错误：通过仔细查阅词语的例句，琢磨是否用的正确、得体
- 第三遍检查拼写错误：打开拼写检查软件，或者把每一段话拷贝到Office Word，看看是不是有拼写错误
1. 检查时态
建议全文用一般现在时。一般现在时，是一种英语语法形式。表示通常性、规律性、习惯性、真理性的动作或状态，或者动作有时间规律发生的事件的一种时间状态。
例如：
- This paper presents an algorithm which can generate live digtial surface model (DSM) during the flight based on simultaneous localization and mapping (SLAM).
- A tile storage scheme is adopted for managing DSM, which allows our system to handle large-scale scenes.
- The overview of our pipeline is depicted in Fig. 2, which consists of three distinct stages: visual SLAM, local DSM generation, and DSM fusion.
- We implement the proposed real-time DSM reconstruction system in C++ and evaluate its performance in terms of computational efficiency and accuracy.
- We have presented a novel method for live DSM reconstruction from sparse pointcloud generated by monocular SLAM. (结论部分)
2. 检查定冠词、不定冠词
具体说明：
不定冠词用法示例：
- The local sub-map is then projected to the current frame for obtaining more PnP observations and a better pose estimation can be achieved.
- New mappoints are triangulated with epipolar search and some data association operators are done, followed with a local bundle executed to optimize the local map-points and keyframe poses with GPS constraints.
- Starting from an aerial image, we first employ a visual SLAM to estimate camera pose and sparse structure (Section III-A).
定冠词用法示例：
- During the DSM fusion, both the local DEM and orthomosaic are split into tiles and fused to the global tiled DEM and orthomosaic respectively with multiband algorithm.
- Besides, with the rapid development of unmanned aerial vehicles (UAVs), aerial images are able to be collected at a low cost and high mobility.
- To achieve this, we use the visual SLAM to obtain the camera poses and key-points with depth information in real-time, and calculate the sparse pointcloud for each keyframe.
- We then execute 2D Delaunay triangulation on key-points to generate a 2D mesh, and project the 2D mesh to a 3D mesh based on the projective relationship between key-points and pointcloud.
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The map is initialized by decomposing the relative pose from a fundamental or homography matrix.
- Although the accuracy of the proposed method is not superior than commercial softwares, the speed is high enough for an online application to reconstruct DSM in real-time.
3. 检查一般语法错误，词语搭配错误
充分利用搜索引擎，或者词典软件来检查语法错误等。具体的技巧为：
将句式中关键的词代入到搜索引擎，看看类似的句子的用法。例如：For planar environment, two methods output nearly identical orthomosaic, and further comparisons with Photoscan or Pix4DMapper could be found at [25]. 其中不太确定and further的用法是否正确，则可以将 "and further"（注意加上引号）输入搜索引擎，看看类似的句子，从而综合判断这种写法在文中的上下文是否正确。
4. 检查拼写错误
- 仔细查找自己所用Tex编辑软件的拼写检查开关，将拼写检查功能打开，仔细检查每一个单词，是否存在拼写错误。
- 有时候拼写没有错，但是把单词写成另外一个单词了，所以拼写检查发现不了。因此需要格外小心。抱着怀疑一切的态度去检查每一个单词。
- 把每一段话拷贝到Office Word，看看是不是有拼写错误。
