Add interpolation table for auto-aim speed-over-ground

We actually have a shot velocity that varies significantly with
distance.

Change-Id: I3a4a59ef3cb181c9f437d50f865d04f710a7f961
Signed-off-by: James Kuszmaul <jabukuszmaul+collab@gmail.com>
Signed-off-by: Austin Schuh <austin.linux@gmail.com>
diff --git a/y2022/vision/blob_detector.cc b/y2022/vision/blob_detector.cc
index 60af1f8..93c72d7 100644
--- a/y2022/vision/blob_detector.cc
+++ b/y2022/vision/blob_detector.cc
@@ -133,7 +133,7 @@
   }
 
   // Threshold for mean distance from a blob centroid to a circle.
-  constexpr double kCircleDistanceThreshold = 10.0;
+  constexpr double kCircleDistanceThreshold = 1.0;
   // We should only expect to see blobs between these angles on a circle.
   constexpr double kDegToRad = M_PI / 180.0;
   constexpr double kMinBlobAngle = 50.0 * kDegToRad;