From 0821c7ad1733ef7ece5c95fd0f6879ef379b004e Mon Sep 17 00:00:00 2001
From: Vladislav Vinogradov <no@email>
Date: Tue, 15 Feb 2011 08:57:35 +0000
Subject: [PATCH] fixed descriptor calculation in SURF_GPU

---
 modules/gpu/src/cuda/surf.cu | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/modules/gpu/src/cuda/surf.cu b/modules/gpu/src/cuda/surf.cu
index 8cdafb3ed0..c780f6e48a 100644
--- a/modules/gpu/src/cuda/surf.cu
+++ b/modules/gpu/src/cuda/surf.cu
@@ -1071,7 +1071,7 @@ namespace cv { namespace gpu { namespace surf
     }
 
     __device__ void calc_dx_dy_old(float sdx[25], float sdy[25], const KeyPoint_GPU* features, int tid)
-    {        
+    {
         // get the interest point parameters (x, y, scale, strength, theta)
         __shared__ float ipt[5];
         if (tid < 5)
@@ -1081,7 +1081,7 @@ namespace cv { namespace gpu { namespace surf
         __syncthreads();
 
         float sin_theta, cos_theta;
-        sincosf(ipt[SF_ANGLE], &sin_theta, &cos_theta);
+        sincosf(ipt[SF_ANGLE] * (CV_PI / 180.0f), &sin_theta, &cos_theta);
 
         // Compute sampling points
         // since grids are 2D, need to compute xBlock and yBlock indices