| arrows/ceres | Algorithms for bundle adjustment and optimization using Ceres Solver. |
| arrows/core | Algorithms implemented with no additional third party dependencies beyond what Vital uses (Eigen). |
| arrows/cuda | Algorithms that use CUDA for GPU acceleration. |
| arrows/dbow2 | Algorithms that implement bag-of-word models using DBoW2. |
| arrows/ffmpeg | Video support through the FFmpeg library. |
| arrows/gdal | Implements GDAL read and write algorithms for images, especially useful for Geospatial image formats like GeoTiff and NITF. |
| arrows/klv | Algorithms to implement the KLV encoding standard. |
| arrows/kpf | Supports the input and output of data in the KWIVER Packet Format (KPF). |
| arrows/mvg | Multi-View Geometry algorithms with no additional dependencies. |
| arrows/ocv | Algorithms implemented using OpenCV. Includes feature detectors and descriptor, homography and fundamental matrix estimation, image IO, and more. |
| arrows/pdal | Algorithms implemented using the PDAL library. Currently only supports I/O. |
| arrows/proj | Geographic conversion functions implemented with PROJ. |
| arrows/qt | A collection of applets and widgets base on the Qt library. |
| arrows/serialize | Data serialization methods using JSON or Protobuf. |
| arrows/super3d | Depth estimation from video, uses VXL |
| arrows/test_data | Test data used for the arrows unit tests. |
| arrows/tests | Unit tests for the arrows libraries. |
| arrows/uuid | [Experimental] Implementation of unique IDs using libuuid |
| arrows/vtk | Algorithms based on Kitware's Vision Tool Kit (VTK). Includes applets such as color_mesh, estimate depth and fuse_depth. |
| arrows/vxl | Algorithms implemnted using the VXL libraries. Includes bundle adjustment, homography estimation, video file reading, and more. |
| arrows/zlib | Algorithms to perform data compression using the zlib library. |