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authorJakob Jorgensen <jakob.jorgensen@manchester.ac.uk>2018-04-23 16:19:29 +0100
committerJakob Jorgensen <jakob.jorgensen@manchester.ac.uk>2018-04-23 16:19:29 +0100
commit01c34b4f293198c5a9ee25eda32ef6deed4bce85 (patch)
tree4877f9c5417f8926197739bcdd71b64fee2815e9 /Wrappers
parent150bad45f5268dbc58b0c449d19d0dbb79b9ba30 (diff)
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Deleted DemoRecIP.py, still held in DemoIP_parking branch
Diffstat (limited to 'Wrappers')
-rwxr-xr-xWrappers/Python/wip/DemoRecIP.py110
1 files changed, 0 insertions, 110 deletions
diff --git a/Wrappers/Python/wip/DemoRecIP.py b/Wrappers/Python/wip/DemoRecIP.py
deleted file mode 100755
index 442e40e..0000000
--- a/Wrappers/Python/wip/DemoRecIP.py
+++ /dev/null
@@ -1,110 +0,0 @@
-#!/usr/bin/env python3
-# -*- coding: utf-8 -*-
-"""
-Reading multi-channel data and reconstruction using FISTA modular
-"""
-
-import numpy as np
-import matplotlib.pyplot as plt
-
-#import sys
-#sys.path.append('../../../data/')
-from read_IPdata import read_IPdata
-
-from ccpi.astra.astra_ops import AstraProjectorSimple, AstraProjectorMC
-from ccpi.reconstruction.funcs import Norm2sq, Norm1, BaseFunction
-from ccpi.reconstruction.algs import FISTA
-#from ccpi.reconstruction.funcs import BaseFunction
-
-from ccpi.framework import ImageData, AcquisitionData, AcquisitionGeometry, ImageGeometry
-
-# read IP paper data into a dictionary
-dataDICT = read_IPdata('..\..\..\data\IP_data70channels.mat')
-
-# Set ASTRA Projection-backprojection class (fan-beam geometry)
-DetWidth = dataDICT.get('im_size')[0] * dataDICT.get('det_width')[0] / \
- dataDICT.get('detectors_numb')[0]
-SourceOrig = dataDICT.get('im_size')[0] * dataDICT.get('src_to_rotc')[0] / \
- dataDICT.get('dom_width')[0]
-OrigDetec = dataDICT.get('im_size')[0] * \
- (dataDICT.get('src_to_det')[0] - dataDICT.get('src_to_rotc')[0]) /\
- dataDICT.get('dom_width')[0]
-
-N = dataDICT.get('im_size')[0]
-
-vg = ImageGeometry(voxel_num_x=dataDICT.get('im_size')[0],
- voxel_num_y=dataDICT.get('im_size')[0],
- channels=1)
-
-pg = AcquisitionGeometry('cone',
- '2D',
- angles=(np.pi/180)*dataDICT.get('theta')[0],
- pixel_num_h=dataDICT.get('detectors_numb')[0],
- pixel_size_h=DetWidth,
- dist_source_center=SourceOrig,
- dist_center_detector=OrigDetec,
- channels=1)
-
-
-sino = dataDICT.get('data_norm')[0][:,:,34] # select mid-channel
-b = AcquisitionData(sino,geometry=pg)
-
-# Initial guess
-x_init = ImageData(np.zeros((N, N)),geometry=vg)
-
-
-
-
-
-Aop = AstraProjectorSimple(vg,pg,'gpu')
-f = Norm2sq(Aop,b,c=0.5)
-
-# Run FISTA for least squares without regularization
-opt = {'tol': 1e-4, 'iter': 10}
-x_fista0, it0, timing0, criter0 = FISTA(x_init, f, None, opt)
-
-plt.imshow(x_fista0.array)
-plt.show()
-
-# Now least squares plus 1-norm regularization
-g1 = Norm1(10)
-
-# Run FISTA for least squares plus 1-norm function.
-x_fista1, it1, timing1, criter1 = FISTA(x_init, f, g1, opt)
-
-plt.imshow(x_fista1.array)
-plt.show()
-
-# Multiple channels
-sino_mc = dataDICT.get('data_norm')[0][:,:,32:37] # select mid-channel
-
-vg_mc = ImageGeometry(voxel_num_x=dataDICT.get('im_size')[0],
- voxel_num_y=dataDICT.get('im_size')[0],
- channels=5)
-
-pg_mc = AcquisitionGeometry('cone',
- '2D',
- angles=(np.pi/180)*dataDICT.get('theta')[0],
- pixel_num_h=dataDICT.get('detectors_numb')[0],
- pixel_size_h=DetWidth,
- dist_source_center=SourceOrig,
- dist_center_detector=OrigDetec,
- channels=5)
-
-b_mc = AcquisitionData(np.transpose(sino_mc,(2,0,1)),
- geometry=pg_mc,
- dimension_labels=("channel","angle","horizontal"))
-
-# ASTRA operator using volume and sinogram geometries
-Aop_mc = AstraProjectorMC(vg_mc, pg_mc, 'gpu')
-
-f_mc = Norm2sq(Aop_mc,b_mc,c=0.5)
-
-# Initial guess
-x_init_mc = ImageData(np.zeros((5, N, N)),geometry=vg_mc)
-
-
-x_fista0_mc, it0_mc, timing0_mc, criter0_mc = FISTA(x_init_mc, f_mc, None, opt)
-
-plt.imshow(x_fista0_mc.as_array()[4,:,:])
-plt.show() \ No newline at end of file