{"id":69940,"date":"2026-11-14T22:11:57","date_gmt":"2026-11-14T14:11:57","guid":{"rendered":"https:\/\/www.biocloudservice.com\/wordpress\/?p=69940"},"modified":"2026-11-14T22:11:57","modified_gmt":"2026-11-14T14:11:57","slug":"stardist-star-convex-rays-round-versus-u-shape","status":"publish","type":"post","link":"https:\/\/www.biocloudservice.com\/wordpress\/stardist-star-convex-rays-round-versus-u-shape\/","title":{"rendered":"StarDist \u4ece 32 \u6761\u5c04\u7ebf\u52a0\u5230 64 \u6761\uff0c\u4e3a\u4ec0\u4e48 U \u5f62\u8f6e\u5ed3\u8fd8\u662f\u8865\u4e0d\u5168\uff1f"},"content":{"rendered":"
\n

\u770b\u7ec6\u80de\u6838\u5206\u5272\u7ed3\u679c\u65f6\uff0c\u5706\u5f62\u76ee\u6807\u5f80\u5f80\u5bb9\u6613\u63cf\u51c6\uff0c\u5f2f\u66f2\u6216\u6709\u6df1\u7f3a\u53e3\u7684\u76ee\u6807\u5374\u53ef\u80fd\u51fa\u73b0\u4e00\u4fa7\u88ab\u524a\u8584\u3002\u770b\u5230\u8fd9\u79cd\u73b0\u8c61\uff0c\u53ef\u4ee5\u5148\u505a\u4e00\u4e2a\u65e0\u9700\u8bad\u7ec3\u7684\u8bd5\u9a8c\u3002\u628a\u771f\u5b9e\u8fb9\u754c\u76f4\u63a5\u4ea4\u7ed9\u8f6e\u5ed3\u8868\u793a\uff0c\u5141\u8bb8\u7a0b\u5e8f\u4ece\u76ee\u6807\u5185\u90e8\u6240\u6709\u50cf\u7d20\u91cc\u6311\u6700\u4f73\u4e2d\u5fc3\uff0c\u5b83\u80fd\u5426\u8868\u8fbe\u51fa\u8fd9\u4e00\u4e2a\u5f62\u72b6\uff1f\u5982\u679c\u5728\u8fd9\u79cd\u6709\u5229\u6761\u4ef6\u4e0b\u4ecd\u7136\u53cd\u590d\u6f0f\u6389\u540c\u4e00\u90e8\u5206\uff0c\u7ee7\u7eed\u8c03\u6574\u6a21\u578b\u9608\u503c\u672a\u5fc5\u80fd\u89e3\u51b3\u773c\u524d\u7684\u95ee\u9898\u3002\u6211\u4eec\u7528 StarDist \u672c\u8eab\u7684\u51e0\u4f55\u51fd\u6570\uff0c\u5bf9\u4e00\u4e2a\u5706\u548c\u4e00\u4e2a U \u5f62\u5bf9\u8c61\u505a\u4e86\u8fd9\u9879\u5b9e\u9a8c\u3002StarDist \u539f\u59cb\u8bba\u6587<\/a><\/p>\n

\u4ece\u4e00\u4e2a\u4e2d\u5fc3\u671d\u5916\u770b\uff0c\u54ea\u4e9b\u8fb9\u754c\u80fd\u591f\u88ab\u770b\u89c1<\/h2>\n

\u4e8c\u7ef4 StarDist \u4f7f\u7528\u4e00\u7ec4\u65b9\u5411\u56fa\u5b9a\u7684\u5c04\u7ebf\u63cf\u8ff0\u5bf9\u8c61\u3002\u6bcf\u4e2a\u5019\u9009\u4e2d\u5fc3\u6cbf\u5404\u65b9\u5411\u7ed9\u51fa\u5230\u8fb9\u754c\u7684\u8ddd\u79bb\uff0c\u672b\u7aef\u70b9\u8fde\u63a5\u8d77\u6765\u5f62\u6210\u591a\u8fb9\u5f62\u3002\u82e5\u4ece\u76ee\u6807\u5185\u67d0\u4e00\u4f4d\u7f6e\u5230\u6240\u6709\u9700\u8981\u8986\u76d6\u7684\u4f4d\u7f6e\u90fd\u53ef\u4ee5\u6cbf\u76f4\u7ebf\u7559\u5728\u5bf9\u8c61\u5185\u90e8\uff0c\u4fbf\u5b58\u5728\u9002\u5408\u8fd9\u79cd\u63cf\u8ff0\u7684\u4e2d\u5fc3\u3002\u5706\u3001\u692d\u5706\u4ee5\u53ca\u4e00\u4e9b\u4e0d\u89c4\u5219\u4f46\u80fd\u591f\u4ece\u5185\u90e8\u4e00\u5904\u770b\u5168\u7684\u8f6e\u5ed3\u90fd\u53ef\u80fd\u6ee1\u8db3\u3002\u9700\u8981\u7279\u522b\u6ce8\u610f\uff0c\u661f\u51f8\u5e76\u4e0d\u7b49\u540c\u4e8e\u6570\u5b66\u4e0a\u7684\u51f8\uff0c\u8868\u9762\u8f7b\u5fae\u51f9\u9677\u4e5f\u4e0d\u4ee3\u8868\u5fc5\u5b9a\u5931\u8d25\u3002\u771f\u6b63\u9ebb\u70e6\u7684\u662f\uff0c\u67d0\u4e9b\u65b9\u5411\u4f1a\u5148\u7a7f\u51fa\u5bf9\u8c61\uff0c\u8d8a\u8fc7\u7a7a\u767d\u540e\u53c8\u91cd\u65b0\u8fdb\u5165\u540c\u4e00\u4e2a\u5bf9\u8c61\u7684\u8fdc\u7aef\u3002<\/p>\n

\u8bbe\u60f3\u4e00\u4e2a U \u5f62\u7ed3\u6784\u3002\u4ece\u5de6\u81c2\u91cc\u9762\u5411\u53f3\u81c2\u53d1\u5c04\u4e00\u6761\u5c04\u7ebf\uff0c\u4e2d\u95f4\u5f88\u53ef\u80fd\u5148\u78b0\u5230\u5185\u4fa7\u8fb9\u754c\u3002\u4e00\u6761\u5c04\u7ebf\u53ea\u8bb0\u5f55\u4e00\u4e2a\u8ddd\u79bb\uff0c\u65e0\u6cd5\u540c\u65f6\u7f16\u7801\u201c\u8fd9\u4e00\u6bb5\u5c5e\u4e8e\u76ee\u6807\u3001\u4e2d\u95f4\u5c5e\u4e8e\u80cc\u666f\u3001\u8fdc\u7aef\u53c8\u5c5e\u4e8e\u76ee\u6807\u201d\u3002\u5c06\u5c04\u7ebf\u6570\u91cf\u52a0\u500d\u4f1a\u63d0\u4f9b\u66f4\u5bc6\u7684\u89d2\u5ea6\u91c7\u6837\uff0c\u80fd\u591f\u4f7f\u5706\u5f27\u6216\u503e\u659c\u8fb9\u7f18\u66f4\u52a0\u5e73\u6ed1\uff0c\u5374\u6ca1\u6709\u589e\u52a0\u540c\u4e00\u65b9\u5411\u53ef\u4fdd\u5b58\u7684\u8fb9\u754c\u6b21\u6570\u3002\u5bf9\u4e8e\u6709\u5b54\u3001\u5206\u53c9\u6216\u6df1\u5f2f\u94a9\u7684\u5bf9\u8c61\uff0c\u8fd9\u79cd\u533a\u522b\u6bd4\u201c\u50cf\u7d20\u591f\u4e0d\u591f\u6e05\u695a\u201d\u66f4\u6709\u89e3\u91ca\u529b\u3002\u6362\u4efb\u52a1\u65f6\u8981\u5148\u660e\u786e\u81ea\u5df1\u60f3\u5206\u7684\u662f\u8fd1\u5706\u7ec6\u80de\u6838\u3001\u6574\u4e2a\u7ec6\u80de\u8fd8\u662f\u7ec6\u957f\u7a81\u8d77\uff0c\u4e0d\u540c\u5b9a\u4e49\u5bf9\u5e94\u7684\u5f62\u72b6\u96be\u5ea6\u5dee\u5f02\u5f88\u5927\u3002<\/p>\n

\u5b9e\u8dd1\u7ecf\u9a8c\uff5c\u7ed9\u7b97\u6cd5\u771f\u5b9e\u8ddd\u79bb\uff0c\u518d\u904d\u5386\u6240\u6709\u5019\u9009\u4e2d\u5fc3<\/h2>\n

\u6211\u4eec\u5b89\u88c5 StarDist 0.9.2\uff0c\u5728\u4e5d\u5341\u516d\u4e58\u4e5d\u5341\u516d\u7684\u7f51\u683c\u4e0a\u751f\u6210\u4e24\u4e2a\u5e26\u771f\u503c\u7684\u5355\u5bf9\u8c61\u6807\u7b7e\u56fe\u3002\u5706\u5f62\u524d\u666f\u6709\u4e00\u5343\u4e94\u767e\u4e00\u5341\u4e03\u4e2a\u50cf\u7d20\uff0cU \u5f62\u6709\u4e00\u5343\u56db\u767e\u4e03\u5341\u4e2a\u50cf\u7d20\u3002\u4e3a\u6bcf\u4e2a\u5bf9\u8c61\u5206\u522b\u5c1d\u8bd5\u516b\u3001\u4e09\u5341\u4e8c\u548c\u516d\u5341\u56db\u6761\u5c04\u7ebf\u3002\u4f7f\u7528\u5305\u91cc\u7684\u539f\u751f\u51e0\u4f55\u51fd\u6570\u4ece\u771f\u503c\u8ba1\u7b97\u5404\u5019\u9009\u50cf\u7d20\u81f3\u8fb9\u754c\u7684\u5c04\u7ebf\u8ddd\u79bb\uff0c\u518d\u9010\u4e2a\u5c06\u6bcf\u4e2a\u524d\u666f\u50cf\u7d20\u4f5c\u4e3a\u4e2d\u5fc3\uff0c\u5229\u7528\u540c\u4e00\u5305\u7684\u591a\u8fb9\u5f62\u51fd\u6570\u6062\u590d\u6807\u7b7e\u3002\u5728\u8fd9\u4e24\u5f20\u79bb\u6563\u56fe\u3001\u8fd9\u5957\u5c04\u7ebf\u89c4\u5219\u548c\u6240\u679a\u4e3e\u4e2d\u5fc3\u7684\u8303\u56f4\u5185\uff0c\u4ee5\u4ea4\u5e76\u6bd4\u6700\u5927\u7684\u7ed3\u679c\u4f5c\u4e3a\u8be5\u8bbe\u7f6e\u7684\u6700\u4f73\u91cd\u5efa\u3002\u8fd9\u4e2a\u6b65\u9aa4\u6ca1\u6709\u8bad\u7ec3\u7f51\u7edc\uff0c\u4e5f\u6ca1\u6709\u4ece\u663e\u5fae\u56fe\u9884\u6d4b\u8ddd\u79bb\u3002\u672c\u6b21\u5b9e\u9645\u8c03\u7528\u7684\u51e0\u4f55\u63a5\u53e3<\/a><\/p>\n

\n\n\n\n\n\n\n
\u5bf9\u8c61<\/th>\n8 \u6761\u5c04\u7ebf\u7684\u6700\u4f73\u4ea4\u5e76\u6bd4<\/th>\n32 \u6761\u5c04\u7ebf<\/th>\n64 \u6761\u5c04\u7ebf<\/th>\n<\/tr>\n<\/thead>\n
\u5706\u5f62<\/td>\n0.9251<\/td>\n0.9895<\/td>\n0.9921<\/td>\n<\/tr>\n
U \u5f62<\/td>\n0.4578<\/td>\n0.6871<\/td>\n0.6872<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\"\u5c04\u7ebf\u52a0\u500d\uff0c\u4e3a\u4ec0\u4e48\u8fd8\u6f0f\u4e00\u6761\u81c2\u3002\u5f62\u72b6\u91cd\u5efa\u5b9e\u8dd1\uff5c\u8f93\u5165\u771f\u5b9e\u5f84\u5411\u8ddd\u79bb\uff0c\u7a77\u4e3e\u4e24\u4e2a\u5bf9\u8c61\u5185\u7684\u5019\u9009\u4e2d\u5fc3\u3002\u5706\u5f62\uff0c32
\u5f62\u72b6\u91cd\u5efa\u5b9e\u8dd1\uff5c\u8f93\u5165\u771f\u5b9e\u5f84\u5411\u8ddd\u79bb\uff0c\u7a77\u4e3e\u4e24\u4e2a\u5bf9\u8c61\u5185\u7684\u5019\u9009\u4e2d\u5fc3\u3002<\/figcaption><\/figure>\n

\u5706\u5f62\u4ece\u516b\u6761\u52a0\u5230\u4e09\u5341\u4e8c\u6761\u65f6\u6700\u4f73\u4ea4\u5e76\u6bd4\u7531\u7ea6 0.925 \u63d0\u9ad8\u5230 0.990\uff0c\u516d\u5341\u56db\u6761\u8fbe\u5230\u7ea6 0.992\u3002U \u5f62\u4ece\u516b\u6761\u589e\u5230\u4e09\u5341\u4e8c\u6761\u65f6\u4e5f\u6709\u6240\u6539\u5584\uff0c\u4f46\u4ece\u4e09\u5341\u4e8c\u5230\u516d\u5341\u56db\u53ea\u7531 0.687075 \u589e\u81f3 0.687246\u3002\u6700\u540e\u8fd9\u4e2a U \u5f62\u6700\u4f73\u91cd\u5efa\u4ecd\u6f0f\u6389\u56db\u767e\u4e94\u5341\u4e03\u4e2a\u771f\u5b9e\u50cf\u7d20\uff0c\u53e6\u5916\u591a\u6d82\u56db\u4e2a\u80cc\u666f\u50cf\u7d20\u3002\u5706\u5f62\u5728\u540c\u4e00\u8bbe\u7f6e\u53ea\u6f0f\u516d\u4e2a\u3001\u591a\u516d\u4e2a\u3002\u7528\u6f0f\u50cf\u7d20\u548c\u591a\u6d82\u50cf\u7d20\u5e76\u5217\uff0c\u80fd\u533a\u5206\u8f6e\u5ed3\u4e3b\u8981\u662f\u6ca1\u5305\u4f4f\u76ee\u6807\uff0c\u8fd8\u662f\u8bef\u541e\u4e86\u5927\u91cf\u80cc\u666f\u3002\u53ea\u7ed9\u4e00\u4e2a\u4ea4\u5e76\u6bd4\u6570\u5b57\uff0c\u96be\u4ee5\u636e\u6b64\u9009\u62e9\u4e0b\u4e00\u6b65\u68c0\u67e5\u3002<\/p>\n

from stardist.geometry import star_dist, polygons_to_label\r\nimport numpy as np\r\n\r\n# mask \u662f\u5355\u4e00\u76ee\u6807\u7684\u4e8c\u503c\u771f\u503c\uff0cp \u6307\u5b9a\u5728\u76ee\u6807\u5185\u90e8\uff0c\u5750\u6807\u4e3a\u884c\u3001\u5217\r\np = np.array([[61, 29]])\r\ndist = star_dist(mask.astype(np.uint16), n_rays=32, mode="cpp")\r\npoly = polygons_to_label(dist[p[0, 0], p[0, 1]][None, :], p, shape=mask.shape) > 0\r\nprint((poly & mask).sum(), (mask & ~poly).sum(), (poly & ~mask).sum())\r\n<\/code><\/pre>\n
\u8bf7\u7559\u610f\u8fd9\u91cc\u201c\u6700\u4f73\u201d\u7684\u542b\u4e49\u3002\u8bd5\u9a8c\u679a\u4e3e\u6bcf\u4e2a\u524d\u666f\u50cf\u7d20\uff0c\u5e76\u4f7f\u7528\u7b2c\u4e00\u4e2a\u8fb9\u754c\u7684\u771f\u503c\u5c04\u7ebf\u8ddd\u79bb\uff0c\u5f97\u5230\u7684\u662f\u6b64\u5904\u5b9a\u4e49\u7684\u91cd\u5efa\u7ed3\u679c\u3002\u5b83\u6ca1\u6709\u5728\u4efb\u610f\u591a\u8fb9\u5f62\u3001\u6240\u6709\u8fde\u7eed\u4e2d\u5fc3\u6216\u6240\u6709\u53ef\u80fd\u9884\u6d4b\u8ddd\u79bb\u4e4b\u95f4\u4f5c\u6570\u5b66\u4f18\u5316\uff0c\u56e0\u6b64\u4e0d\u5e94\u58f0\u79f0 0.687 \u662f\u4efb\u4f55\u661f\u5f62\u591a\u8fb9\u5f62\u90fd\u7edd\u5bf9\u65e0\u6cd5\u8d85\u8d8a\u7684\u4e0a\u754c\u3002\u6a21\u578b\u5728\u81ea\u7136\u56fe\u50cf\u4e0a\u8fd8\u8981\u4f30\u8ba1\u4e2d\u5fc3\u3001\u524d\u666f\u6982\u7387\u548c\u8ddd\u79bb\uff0c\u968f\u540e\u6291\u5236\u91cd\u53e0\u7684\u5019\u9009\u5bf9\u8c61\uff0c\u8fd9\u4e9b\u8bef\u5dee\u6765\u6e90\u4e5f\u672a\u5305\u542b\u5728\u672c\u6b21\u51e0\u4f55\u6d4b\u8bd5\u3002\u5199\u6e05\u695a\u8bd5\u9a8c\u56de\u7b54\u7684\u5c42\u7ea7\uff0c\u624d\u77e5\u9053\u8be5\u628a\u6539\u8fdb\u7cbe\u529b\u653e\u5728\u6807\u6ce8\u3001\u7f51\u7edc\u8fd8\u662f\u5f62\u72b6\u5b9a\u4e49\u4e0a\u3002<\/p>\n
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