https://pfspipe.ipmu.jp/jira This file is an XML representation of an issue en-us 8.3.4 803005 13-09-2019 https://pfspipe.ipmu.jp/jira/browse/PIPE2D-516 DRP 2-D Pipeline <p>I have been noticed that there is an inconsistency between the results that I create on different sized images - e.g., the results differ if I create 20x20 or 50x50 images although I have used all the same parameters. That obviously should not happen.... The differences seem to be most pronounced in the ``scattering'' component around the central spot. This is manifested in the image below which shows:</p> <p> </p> <p>Top left: 20x20 cut from the larger 50x50 image</p> <p>Top right: 20x20 image</p> <p>Bottom left: full 50x50 image</p> <p>Bottom right: (20x20 cut from the larger 50x50 image-20x20 image)/(20x20 image)</p> <p> </p> <p>This ticket is to investigate and fix this problem.</p> <p> </p> <p> </p> PIPE2D-516

Different results from different size images with same physical parameters

Task Normal Done Done ncaplar ncaplar Thu, 27 Feb 2020 16:26:53 +0000 Thu, 12 Mar 2020 14:30:40 +0000 Thu, 12 Mar 2020 14:30:40 +0000 0 1 <p>In the previous version of the code (internal version 0.26) the pupil image was apodized with the same factor (Gaussian filter with sigma=0.75 pixels), even though the pupil image size changes as the function of the size of the final image.  I have now implemented (in the internal version of the code 0.27) that the apodization scales as a function of the scale of the pupil image. Having said that, I have not removed the effect. With this is I have basically changed the +- size of the effect and decreased its magnitude. I will continue the investigation. </p> <p>The ``solution'' which I decide to pursue it to analyze all images with the same size for the corresponding pupil image. In this way the optical PSF created will always have the same properties and this problem will be avoided. There will be some overhead and slowdown in the generating spped, because we will be using larger arrays for pupil description in case of focused images, but I think this is acceptable.</p> <p>I am at the moment generating the new solutions using the improvements specified in this ticket. I should probably open a new ticket to capture this. </p> Development Rank 0|zzs0sw: Story Points 6.0