Combine 2 images for the same scene taken by different model to get a more informative image. The first step of image registration is finding a correlation between images (fix and floating) by detecting image features, intensity value or combine them. Image similarity is a cost function and it should calculate iteratively while doing a transformation. Once we reach the optimal solution the optimization process suspends and the images will align based on best fit transformation parameters.
Questions tagged [image-registration]
147 questions
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Easy way to calculate the shift between two arrays? Python
I have two dicom images and can compute the mean squared error of the images using the code below. However, there can be an inherent shift in one image compared to another (if my imager is slightly misaligned). Is there an easy way to compute a…
Ciaran
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Id : denoting the identity mapping of Rn
I would like to know the pixel values of Identity mapping Id; it is generally used in image registration. Say h is deformation; then, ---for Id+h--- they call warped image.
But, I couldn't get that how to embed Id to matlab; what is the value of…
mexes
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Matlab cpselect with RGB fixed image
I would like to be able to use the cpselect matlab tool (or a similar one) with the capability of showing both images (moving image and reference image) in RGB (I only managed to see moving image in RGB and reference image in grayscale).
Could…
jsalvador
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How to intersect and align pixels of two images in Matlab?
I have two images of different sizes and different world locations, like this
For both images I have imref2d information.
I would like to perform comparational analysis, so I need to crop both images to the same size and resample one of them so…
Suzan Cioc
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1 answer
Registering a pair of binary masks
I'm trying to register a pair of binary masks, not a pair of images.
To explain further, I'm trying to build a model that automatically strips the brain from the head skull. For the better model accuracy, I already have labeled the brain area using…
goofyduck
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1 answer
Image registration problem : Very bad image registration result
I am trying to perform image registration and my registration output is completely bad .
Following is my code , the images that i posses are models of wounds acquired at different camera angle, links for the acquired images and output image is…
DevanDev
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MemoryError: Unable to allocate 115. MiB for an array with shape (344, 344, 127) and data type float64 in DIPY image registration
I'm trying to do image registration using DIPY (Affine registration in 3d)
I tried to run the following code (Actually I tried to reproduce the example code with a different nifti file)
from os.path import join as pjoin
import numpy as np
from…
Deepmarv
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how to save a modified 3D raw file?
I am trying to read a raw file in Matlab (float64, which is a deformation vector field, i.e. result of image registration), with 3 dimensions 304 x 224 x 52.
Then I want to change all the values within this file by dividing them by 10.
After that I…
Hoda
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how can i use lsqcurvefit for image registration?
I have two 3D images, i need to register these two images using "lsqcurvefit". I know that I can use "imregister" but I want to use my own registration using "lsqcurvefit" in Matlab. My images are are following Gaussian distribution. it is not…
Ehsan
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register for face_recognition
I'm trying to do an basic register for my face_recognition app using python
#Here I'm trying to register faces more easier than need to add every face editing my script
I need some way to add persons, register that and then can be recognized
Any…
Victor Costa
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How to overlay the RTDOSE and Image data in the correct position?
I'm currently an MS student in Medical Physics and I have a great need to be able to overlay an isodose distribution from an RTDOSE file onto a CT image from a .dcm file set.
I've managed to extract the image and the dose pixel arrays myself using…
