diff --git a/y2023/vision/aprilrobotics.h b/y2023/vision/aprilrobotics.h
index fd371c7..bf9265b 100644
--- a/y2023/vision/aprilrobotics.h
+++ b/y2023/vision/aprilrobotics.h
@@ -40,6 +40,9 @@
   // Undistorts the april tag corners using the camera calibration
   void UndistortDetection(apriltag_detection_t *det) const;
 
+  // Helper function to store detection points in vector of Point2f's
+  std::vector<cv::Point2f> MakeCornerVector(const apriltag_detection_t *det);
+
   std::vector<Detection> DetectTags(cv::Mat image,
                                     aos::monotonic_clock::time_point eof);