Wadha moh Alyami

9 Questions 6 Answers 0 Followers

Questions related from Wadha moh Alyami

What's the image resizing impact on the accurate x-y location of a point?

Hi all, I'm interested in X-y location of a point on an image. If I interpolate the image to be 1000 by 1000 pixels, then downsample it to 200 *200 pixels. Then measure X-Y location of the point....

07 July 2019 2,973 8 View

Why does some metric (cost function) require very short step size of the optimizer to give good registration results?!?

Hi All, If the metric ( cost function) is very sensitive to the step size of the optimizer and the number of iterations, what does it mean?!. Does that mean the metric has a limit then the...

05 May 2019 6,020 4 View

If C-B= 0, does that mean good registration ?

if A (fixed image or reference image) , B ( moving image),and C is the resulted image after the registration. What should be C-B? If C-B= 0, does that mean good registration ? Thanks,

03 March 2019 7,409 3 View

Why do we need to down-sample a histology image ?

Why do we need to down sample the histology image when we try the registration to a medical image?. one reason that I know is to reduce the noise. Also, to help the similarity metrics to find a...

02 February 2019 708 9 View

What's the difference between scaling images based on scale factor and randomly?

what's the difference between scaling two images based on scale factor (microns per pixel in each image) and scaling the images randomly (e.g bring two images to the same size regardless the scale...

11 November 2018 4,911 2 View

Limitations of the mutual information?

What are the limitations of using mutual information as similirty measure of the registeration of two different contrast machnisims?

10 October 2018 6,453 2 View

Is there anyone expert with using Elastix for image registration ?

I'm facing a difficulty in evaluating the registration accuracy by using Elastix, since I'm using an artificial images. I would like to have an advice on how to evaluate the accuracy of the...

09 September 2018 8,384 5 View

Questions in images registration ?

Hi All, I'm using Elastix software to do the registration between a histology image and MRI? I have some questions: 1. what do you think the most important parameters that could affect the...

08 August 2018 8,579 1 View

What could cause the symmetric shape that resulted after the subtraction of registed moving image from the fixed image?

I made a registration between fixed and moving image using affine transform and differences metric. I subtracted the result image from the fixed image to evaluate the registration. As you see in...

08 August 2018 5,609 2 View