fix(lidar_centerpoint): fix function sigmoid() (tier4#1555)

fix(lidar_centerpoint): fix function sigmoid() (tier4#1545) Signed-off-by: WfHit <[email protected]>
boyali · Sep 28, 2022 · 6c2882a · 6c2882a
1 parent 944fe13
commit 6c2882a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/perception/lidar_centerpoint/lib/postprocess/postprocess_kernel.cu b/perception/lidar_centerpoint/lib/postprocess/postprocess_kernel.cu
@@ -47,7 +47,7 @@ struct score_greater
   __device__ bool operator()(const Box3D & lb, const Box3D & rb) { return lb.score > rb.score; }
 };
 
-__device__ inline float sigmoid(float x) { return 1.0f / expf(-x); }
+__device__ inline float sigmoid(float x) { return 1.0f / (1.0f + expf(-x)); }
 
 __global__ void generateBoxes3D_kernel(
   const float * out_heatmap, const float * out_offset, const float * out_z, const float * out_dim,