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-rw-r--r--cuda/3d/cone_fp.cu95
1 files changed, 74 insertions, 21 deletions
diff --git a/cuda/3d/cone_fp.cu b/cuda/3d/cone_fp.cu
index 13b184f..fefcdc1 100644
--- a/cuda/3d/cone_fp.cu
+++ b/cuda/3d/cone_fp.cu
@@ -128,6 +128,18 @@ struct DIR_Z {
__device__ float z(float f0, float f1, float f2) const { return f0; }
};
+struct SCALE_CUBE {
+ float fOutputScale;
+ __device__ float scale(float a1, float a2) const { return sqrt(a1*a1+a2*a2+1.0f) * fOutputScale; }
+};
+
+struct SCALE_NONCUBE {
+ float fScale1;
+ float fScale2;
+ float fOutputScale;
+ __device__ float scale(float a1, float a2) const { return sqrt(a1*a1*fScale1+a2*a2*fScale2+1.0f) * fOutputScale; }
+};
+
// threadIdx: x = ??? detector (u?)
// y = relative angle
@@ -135,11 +147,12 @@ struct DIR_Z {
// blockIdx: x = ??? detector (u+v?)
// y = angle block
-template<class COORD>
+template<class COORD, class SCALE>
__global__ void cone_FP_t(float* D_projData, unsigned int projPitch,
unsigned int startSlice,
unsigned int startAngle, unsigned int endAngle,
- const SDimensions3D dims, float fOutputScale)
+ const SDimensions3D dims,
+ SCALE sc)
{
COORD c;
@@ -188,7 +201,7 @@ __global__ void cone_FP_t(float* D_projData, unsigned int projPitch,
const float b1 = c.c1(fSrcX,fSrcY,fSrcZ) - a1 * c.c0(fSrcX,fSrcY,fSrcZ);
const float b2 = c.c2(fSrcX,fSrcY,fSrcZ) - a2 * c.c0(fSrcX,fSrcY,fSrcZ);
- const float fDistCorr = sqrt(a1*a1+a2*a2+1.0f) * fOutputScale;
+ const float fDistCorr = sc.scale(a1, a2);
float fVal = 0.0f;
@@ -214,7 +227,8 @@ template<class COORD>
__global__ void cone_FP_SS_t(float* D_projData, unsigned int projPitch,
unsigned int startSlice,
unsigned int startAngle, unsigned int endAngle,
- const SDimensions3D dims, float fOutputScale)
+ const SDimensions3D dims, int iRaysPerDetDim,
+ SCALE_NONCUBE sc)
{
COORD c;
@@ -245,7 +259,7 @@ __global__ void cone_FP_SS_t(float* D_projData, unsigned int projPitch,
if (endSlice > c.nSlices(dims))
endSlice = c.nSlices(dims);
- const float fSubStep = 1.0f/dims.iRaysPerDetDim;
+ const float fSubStep = 1.0f/iRaysPerDetDim;
for (int detectorV = startDetectorV; detectorV < endDetectorV; ++detectorV)
{
@@ -255,9 +269,9 @@ __global__ void cone_FP_SS_t(float* D_projData, unsigned int projPitch,
float fV = 0.0f;
float fdU = detectorU - 0.5f + 0.5f*fSubStep;
- for (int iSubU = 0; iSubU < dims.iRaysPerDetDim; ++iSubU, fdU+=fSubStep) {
+ for (int iSubU = 0; iSubU < iRaysPerDetDim; ++iSubU, fdU+=fSubStep) {
float fdV = detectorV - 0.5f + 0.5f*fSubStep;
- for (int iSubV = 0; iSubV < dims.iRaysPerDetDim; ++iSubV, fdV+=fSubStep) {
+ for (int iSubV = 0; iSubV < iRaysPerDetDim; ++iSubV, fdV+=fSubStep) {
const float fDetX = fDetSX + fdU*fDetUX + fdV*fDetVX;
const float fDetY = fDetSY + fdU*fDetUY + fdV*fDetVY;
@@ -272,7 +286,7 @@ __global__ void cone_FP_SS_t(float* D_projData, unsigned int projPitch,
const float b1 = c.c1(fSrcX,fSrcY,fSrcZ) - a1 * c.c0(fSrcX,fSrcY,fSrcZ);
const float b2 = c.c2(fSrcX,fSrcY,fSrcZ) - a2 * c.c0(fSrcX,fSrcY,fSrcZ);
- const float fDistCorr = sqrt(a1*a1+a2*a2+1.0f) * fOutputScale;
+ const float fDistCorr = sc.scale(a1, a2);
float fVal = 0.0f;
@@ -294,14 +308,14 @@ __global__ void cone_FP_SS_t(float* D_projData, unsigned int projPitch,
}
}
- D_projData[(detectorV*dims.iProjAngles+angle)*projPitch+detectorU] += fV / (dims.iRaysPerDetDim * dims.iRaysPerDetDim);
+ D_projData[(detectorV*dims.iProjAngles+angle)*projPitch+detectorU] += fV / (iRaysPerDetDim * iRaysPerDetDim);
}
}
bool ConeFP_Array_internal(cudaPitchedPtr D_projData,
const SDimensions3D& dims, unsigned int angleCount, const SConeProjection* angles,
- float fOutputScale)
+ const SProjectorParams3D& params)
{
// transfer angles to constant memory
float* tmp = new float[angleCount];
@@ -336,6 +350,36 @@ bool ConeFP_Array_internal(cudaPitchedPtr D_projData,
unsigned int blockEnd = 0;
int blockDirection = 0;
+ bool cube = true;
+ if (abs(params.fVolScaleX / params.fVolScaleY - 1.0) > 0.00001)
+ cube = false;
+ if (abs(params.fVolScaleX / params.fVolScaleZ - 1.0) > 0.00001)
+ cube = false;
+
+ SCALE_CUBE scube;
+ scube.fOutputScale = params.fOutputScale * params.fVolScaleX;
+
+ SCALE_NONCUBE snoncubeX;
+ float fS1 = params.fVolScaleY / params.fVolScaleX;
+ snoncubeX.fScale1 = fS1 * fS1;
+ float fS2 = params.fVolScaleZ / params.fVolScaleX;
+ snoncubeX.fScale2 = fS2 * fS2;
+ snoncubeX.fOutputScale = params.fOutputScale * params.fVolScaleX;
+
+ SCALE_NONCUBE snoncubeY;
+ fS1 = params.fVolScaleX / params.fVolScaleY;
+ snoncubeY.fScale1 = fS1 * fS1;
+ fS2 = params.fVolScaleY / params.fVolScaleY;
+ snoncubeY.fScale2 = fS2 * fS2;
+ snoncubeY.fOutputScale = params.fOutputScale * params.fVolScaleY;
+
+ SCALE_NONCUBE snoncubeZ;
+ fS1 = params.fVolScaleX / params.fVolScaleZ;
+ snoncubeZ.fScale1 = fS1 * fS1;
+ fS2 = params.fVolScaleY / params.fVolScaleZ;
+ snoncubeZ.fScale2 = fS2 * fS2;
+ snoncubeZ.fOutputScale = params.fOutputScale * params.fVolScaleZ;
+
// timeval t;
// tic(t);
@@ -373,22 +417,31 @@ bool ConeFP_Array_internal(cudaPitchedPtr D_projData,
if (blockDirection == 0) {
for (unsigned int i = 0; i < dims.iVolX; i += g_blockSlices)
- if (dims.iRaysPerDetDim == 1)
- cone_FP_t<DIR_X><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, fOutputScale);
+ if (params.iRaysPerDetDim == 1)
+ if (cube)
+ cone_FP_t<DIR_X><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, scube);
+ else
+ cone_FP_t<DIR_X><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, snoncubeX);
else
- cone_FP_SS_t<DIR_X><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, fOutputScale);
+ cone_FP_SS_t<DIR_X><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, params.iRaysPerDetDim, snoncubeX);
} else if (blockDirection == 1) {
for (unsigned int i = 0; i < dims.iVolY; i += g_blockSlices)
- if (dims.iRaysPerDetDim == 1)
- cone_FP_t<DIR_Y><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, fOutputScale);
+ if (params.iRaysPerDetDim == 1)
+ if (cube)
+ cone_FP_t<DIR_Y><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, scube);
+ else
+ cone_FP_t<DIR_Y><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, snoncubeY);
else
- cone_FP_SS_t<DIR_Y><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, fOutputScale);
+ cone_FP_SS_t<DIR_Y><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, params.iRaysPerDetDim, snoncubeY);
} else if (blockDirection == 2) {
for (unsigned int i = 0; i < dims.iVolZ; i += g_blockSlices)
- if (dims.iRaysPerDetDim == 1)
- cone_FP_t<DIR_Z><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, fOutputScale);
+ if (params.iRaysPerDetDim == 1)
+ if (cube)
+ cone_FP_t<DIR_Z><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, scube);
+ else
+ cone_FP_t<DIR_Z><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, snoncubeZ);
else
- cone_FP_SS_t<DIR_Z><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, fOutputScale);
+ cone_FP_SS_t<DIR_Z><<<dimGrid, dimBlock, 0, stream>>>((float*)D_projData.ptr, D_projData.pitch/sizeof(float), i, blockStart, blockEnd, dims, params.iRaysPerDetDim, snoncubeZ);
}
}
@@ -414,7 +467,7 @@ bool ConeFP_Array_internal(cudaPitchedPtr D_projData,
bool ConeFP(cudaPitchedPtr D_volumeData,
cudaPitchedPtr D_projData,
const SDimensions3D& dims, const SConeProjection* angles,
- float fOutputScale)
+ const SProjectorParams3D& params)
{
// transfer volume to array
@@ -434,7 +487,7 @@ bool ConeFP(cudaPitchedPtr D_volumeData,
ret = ConeFP_Array_internal(D_subprojData,
dims, iEndAngle - iAngle, angles + iAngle,
- fOutputScale);
+ params);
if (!ret)
break;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 19:37:38 +0000