BUG: Fix CUDA/CPU inconsistency in DisplacedDetectorImageFilter

thisysp · SimonRit · commit e8299590d1d1 · 2023-02-15T10:51:48.000+01:00
diff --git a/src/rtkCudaDisplacedDetectorImageFilter.cu b/src/rtkCudaDisplacedDetectorImageFilter.cu
@@ -41,7 +41,7 @@ ToUntiltedCoordinateAtIsocenter(float tiltedCoord, float sdd, float sid, float s
   const float cosa = sx / sidu;
   // the following relation refers to a note by R. Clackdoyle, title
   // "Samping a tilted detector"
-  return l * sid / (sidu - l * cosa);
+  return l * abs(sid) / (sidu - l * cosa);
 }
 
 __global__ void

Original file line number	Diff line number	Diff line change
`@@ -41,7 +41,7 @@ ToUntiltedCoordinateAtIsocenter(float tiltedCoord, float sdd, float sid, float s`
`41`	`41`	`const float cosa = sx / sidu;`
`42`	`42`	`// the following relation refers to a note by R. Clackdoyle, title`
`43`	`43`	`// "Samping a tilted detector"`
`44`		`- return l * sid / (sidu - l * cosa);`
	`44`	`+ return l * abs(sid) / (sidu - l * cosa);`
`45`	`45`	`}`
`46`	`46`
`47`	`47`	`__global__ void`