Distance Transform #1
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安装了miniconda来进行虚拟环境包管理 在执行`pip install -e. "import torch" 失败并抛出 `ModuleNotFoundError 所以在 `pyproject.toml` 的 `[build-system].requires` 列表中明确添加 `"torch"`。 这会强制 pip 在构建开始前，先将 torch 安装到其临时环境中，从而确保构建过程顺利完成。
- 新增 CUDA 内核，分别用于行与列方向的距离变换 - 支持在 GPU 上处理二维张量 - 已通过基础单元测试验证正确性 - 注意：当前实现仅适用于二维情况，尚未推广到 N 维张量
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This PR implements the distance transform algorithm.
Our implementation strictly follows the scipy implementation, which originates from this paper.
@moliflower Do not touch any other files except csrc/distance_transform_kernel.cu.