From f0ff9302667885061ea882278da983413b5d986f Mon Sep 17 00:00:00 2001
From: sladro <sladro@163.com>
Date: Wed, 7 Jan 2026 19:44:38 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E4=BA=BA=E8=84=B8=E6=A3=80?=
 =?UTF-8?q?=E6=B5=8B=EF=BC=8Co4.5=205?=
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---
 plugins/ai_face_det/ai_face_det_node.cpp | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/plugins/ai_face_det/ai_face_det_node.cpp b/plugins/ai_face_det/ai_face_det_node.cpp
index f8fe325..b32ab7a 100644
--- a/plugins/ai_face_det/ai_face_det_node.cpp
+++ b/plugins/ai_face_det/ai_face_det_node.cpp
@@ -727,6 +727,12 @@ private:
         constexpr float var0 = 0.1f;
         constexpr float var1 = 0.2f;
 
+        // Debug: track max score and sample conf values
+        static bool dbg_conf_logged = false;
+        float dbg_max_score = -999.0f;
+        float dbg_max_s0 = 0.0f, dbg_max_s1 = 0.0f;
+        int dbg_above_thresh = 0;
+
         for (int i = 0; i < n; ++i) {
             const float s0 = conf.data[static_cast<size_t>(i) * 2 + 0];
             const float s1 = conf.data[static_cast<size_t>(i) * 2 + 1];
@@ -736,6 +742,15 @@ private:
             } else {
                 score = Softmax2(s0, s1);
             }
+
+            // Debug: track max
+            if (score > dbg_max_score) {
+                dbg_max_score = score;
+                dbg_max_s0 = s0;
+                dbg_max_s1 = s1;
+            }
+            if (score >= conf_thresh_) ++dbg_above_thresh;
+
             if (score < conf_thresh_) continue;
 
             const Prior p = priors.empty() ? Prior{0, 0, 0, 0} : priors[static_cast<size_t>(i)];
@@ -786,6 +801,15 @@ private:
             }
         }
 
+        // Debug: log conf score info once
+        if (!dbg_conf_logged) {
+            dbg_conf_logged = true;
+            LogInfo("[ai_face_det] conf stats: max_score=" + std::to_string(dbg_max_score) +
+                    " (s0=" + std::to_string(dbg_max_s0) + " s1=" + std::to_string(dbg_max_s1) + ")" +
+                    " above_thresh=" + std::to_string(dbg_above_thresh) +
+                    " thresh=" + std::to_string(conf_thresh_));
+        }
+
         if (boxes.empty()) return;
 
         std::vector<int> keep;