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该仓库用于IMU和车轮计之间的标定

License: MIT License

CMake 0.86% Shell 0.26% C++ 82.63% C 13.71% Python 2.53%

imu_veh_calib's Introduction

说明

该仓库代码主要借鉴使用了https://github.com/MegviiRobot/CamOdomCalibraTool的代码实现(非常感谢其实现)
知乎相关文章https://zhuanlan.zhihu.com/p/101727151
原先代码用于camera & 车轮计标定,代码做了删除和修改,现在用于IMU & 车轮计标定
同时基于现代化的C++ code对原先代码格式和命名进行了修改

编译:

使用build.sh进行编译
修改DBUILD_SHARED_LIBS参数来控制生成动态库和静态库,默认使用静态图 使用CMAKE_BUILD_TYPE参数来控制生成Release代码或者Debug代码 更详细的CMAKE使用方式请参考官网

使用:

完成上一步编译操作后,在当前代码目录下运行run.sh,可以看到类似如下输出 calibrateResult result
和test_data/config_inner.yaml中的结果对比,相一致的话就是说明结果是符合预期的
标定的数据格式请参考:
test_data/formatted_camera.txt
test_data/formatted_odometry.txt

细节

考虑到IMU和轮速计的数据收集过程中本身在时间上就很难做到完全对齐,此时引入时间偏移(delta_t)用于表示两者采集时间片之间的误差,使用test_data/generate_time_shift.py 脚本可以产生时间发生shift后的轮速计数据,通过循环标定新产生的轮速计数据和原先的IMU 数据,选取误差最小的结果作为最终两者之间的标定,相应的(delta t)即认为两者采集时间的偏差

状态:

开发中

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