Wednesday, August 20, 2008

Yay today was the last full day of work. I spent the morning fiddling with the allignment of the HST and Galex images, again. I used IRAF to move the HST image a certain pixel count up and to the right but when it was all said and done I had lost some of the image and it didn't really look they were perfectly alligned so I'm gonna have to pick back up on this when I start working in the fall because this approach can pretty much be declared a failure. Then we went out to lunch and when we came back we ran through our presentation with Jake, which took like two hours. We made his changes and I am just waiting for Nicole to finish making hers so I can compile the presentation and run it up to Joe Pow. Then I'm out of here. I think we will be in good shape tomorrow though, even though things were sort of thrown together today.

Tuesday, August 19, 2008

Three more days and counting!! Today I figured out how to rotate the HST images so they would be at the same angle as the Galex images. Then I used congrid to resize the Galex images so that they would match the arc second scale of the HST images. Everything looked good until I went to overlay them at which point I realized that alligning the centers was going to be a little more difficult. The PHD student showed me some procedure in IRAF, another imaging processing programming language like IDL, that might help, but I will have to go talk to him again tomorrow because he said everything so fast that half of it went over my head. Then I made a SBP graph using just the raw data from a point spread function as a sort of proof of concept for the undergrads code. I'm not really sure of the relevance or application of this but Jake asked me to do it at the afternoon meeting with Stefi and Chris so I modified the undergrad code to make it work. Anyway, now theres like 10 minutes until the last meeting of the day so im just gonna hang out for a while. Joe wants our presentations early tomorrow morning so the end is coming fast, faster than I expected.

Monday, August 18, 2008

August 18

Today was another monday, the last monday. I spent the majority of the morning working on my presentation, hopefully what I have now is a final rough draft, of sorts. This presentation is proving more difficult than I originally thought because its hard to split it all up between the four interns. Then I spent the afternoon identifying what UGC galaxies I have (because the headers had the 3C names) and then trying to make HROT work, a rotation command that will help allign them. However, I couldn't find the rotation in the headers so that was my problem of the day, Jake showed me where it is though so hopefully that will help.

Friday, August 15, 2008

August 15

Yay its Friday! Today I worked on my presentation, I got a bunch of slides done, but we still aren't totally sure how we are going to split it up so chances are I am going to have to change some of it. I also did another eye tracking experiment today, a follow up experiment to one of the ones I did earlier this summer. Then Jake came by and I showed him how bad the images he had sent me where so he gave me a bunch of HST UV images of some of my UGC galaxies to overlay with the Galex UV images. I didn't make much progress on that though because I can't use hastrom to do it because I don't want to lose any data on the HST images, and hastrom will shrink them down in pixel size. Something to work on next week I guess, but there isn't much time left.

Thursday, August 14, 2008

August 14

Today I redid all of my surface brightness profiles. I adjusted the scale on the spectral indexes and changed a thing with the margins to basically make it prettier. That took most of the morning. Then I started moving the files of the new galaxies from Jake's folder to mine so I could begin working on them. Unfortunately that took over two hours to complete so I worked on my poster in the mean time. With the suggestions from Chris I added some more science to my results section and changed a few other things. Finally, at the end of the day I got to look at some of the new galaxies, but the images are very noisy so that may be a bit of a problem. Ill have to talk with Jake about what exactly he wants done with them tomorrow.

Wednesday, August 13, 2008

August 13

Today we visited Optimax, a in the Rochester area that basically creates specialized lenses for other companies, like NASA, to use. I cant really say what we saw there because its all company secrets and stuff, but it was pretty cool, a lot of stuff along the lines of ITT. After that we got free lunch on the way home and then I had to go to work. I sent my finished rough draft of my poster to Joe Pow and to Stefi, Jake, and Chris. Then I updated the wiki and added a JPEG version of my poster so that Stefi could see it. Finally I started redoing the surface brightness profiles because the last ones had some problems with the spectral indexes and with some of the alignment of the graphs, both of which were solved in the latest version of the code from the undergrads. The last thing I did before Zosimo attacked my computer to run windows updates was send my abstract for my presentation to Bob for the U of R presentations next week. I will probably start working on that tomorrow.

Tuesday, August 12, 2008

August 12

Today I finished the final draft of my poster. I went through all the text and made a few changes shortening things up, plus I added and revised the results section to emphasize what was actually gained scientifically from my research. Also, with the help of Joe, I increased the pixel count of my images (in photoshop) so that when the poster gets blown up to 3ft by 4ft the images are at the very worst blurry, but not pixelly. Today we also had our weekly meeting with Chris and Steffi, although Steffi wasnt there so just Chris. Things are definitely winding down around here, Jake mentioned a few more things that I could start working on but they will all take longer to complete than the time I have left here so at the most all I can do is devise the method to complete the process and write it down so that someone else can do it later. My first priority, like all the interns, is going to be getting my presentation done, then maybe I can finish up a little more work for Jake before the summer is over. It all seems like it went by so fast!

Monday, August 11, 2008

August 11

Another Monday at RIT. Today I worked more on my poster, its almost done, I just need to read it through a few more times. Hopefully Im done changing pictures and font sizes and stuff though. I also compiled the different imaging processes and data collections that I did for the different galaxies so that Jake and Steffi can see the sum total of my work here this summer, and direct me in any further analysis for the next two weeks. That was about it, so kind of a slow day. Posters are due Wednesday and the presentations are due a weeks after that so its getting close to the end!

Friday, August 8, 2008

August 8

Today was the undergraduate research symposium. So what that meant for us interns was a free breakfast, a bunch of time looking at posters, and sitting through a few presentations, of varying degrees of interest. Both Brad Greg and Brian's, and Karla's presentations were very good, especially because I had helped a little with some of Brad Greg and Brian's stuff and some of my images were in their presentation. That took up most of the day, and right now all the undergrads are sitting through the presentation of awards for the symposium so there is no afternoon meeting. I did get to spend a little time on my poster though, which is starting to look pretty good actually, the only problem is I am having trouble making sure the text isn't too big or too small. Next week Ill finish it up and start working out my presentation.

Thursday, August 7, 2008

August 7

Today I worked more on my poster. I did most of the text for how I did things and what I did this summer. Plus I added more images of the different steps, including the separate image arrays that I put together to make the hastrom images. Other than that I helped contribute a few things (images and such) to the undergrad's presentation that they have to give tomorrow and watched them do a practice run. Not a very eventful day, hopefully I will finish the poster design tomorrow.

Wednesday, August 6, 2008

August 6

Today was a pretty problem free day. This morning I reformatted the TIFF files that I created and made them JPEG (in IDL as usual). Then I put those JPEGs into a word document and highlighted and described the points of interest in each image. After that I was pretty much done with everything Jake could come up with for a while. So I decided to start working on my poster that covers the stuff I have done at RIT this summer. There isn't much more I can say about that so, yeah, thats what I did today. I should probably start working on the capstone presentation powerpoint some time soon as well. Maybe tomorrow.

Tuesday, August 5, 2008

August 5

Today was another good day in the RIT astronomical imaging department. I re-hastromed all my galaxies so that the optical were sized to the UV images, not the other way around. Then I was able to use the code that Brad developed to create surface brightness profiles of all my galaxies. The code was big and complicated and took some adjustments quite often, but it actually made the work a lot easier than it would have been to do it by hand. Anyway, that took the entire day, but it was good stuff. Hopefully I will have time to post the JPEGs of my histograms from todays work on Flickr before the afternoon meeting, but if not, they will be up tomorrow, I promise, I hope. If it wasn't raining outside, and my car wasn't parked in the farthest parking lot because of the construction, I would probably be in an excellent mood, but oh well, guess you can't always get what you want.

Monday, August 4, 2008

August 4

Today we went on another field trip. We got a tour of ITT, specifically its optics labs. There we saw everything from the machines used to grind precision lenses and mirrors, to the special rooms they use to test them, to some of the designs for mounting these lenses and mirrors inside telescopes. I think the coolest part was the machine that uses water to cut glass down to hundreths of an inch in thickness. After ITT we got free lunch on the way back to RIT and then had about three hours of work. I tried to run Brads code for finding the surface brightness profile of elliptical galaxies on my galaxies but it failed. To make it work I need to go back and hastrom my optical images to the UV instead of hastroming them to the optical (which is what I needed to do before). This will be easy, I hope, but none-the-less time consuming. Basma and I also spent some time with Meghan working on the insight lab's T-shirt design.

Friday, August 1, 2008

August 1

Today was my most productive day in over a week, and its Friday, so I'm in a good mood!! Early this morning I tested and figured out how to erode the TIFF files. However, as I expected, it needed to be done one array at a time, and was a fairly long process. To repeat this process three times, for each of my 14 galaxies would have probably taken the next three days, and would have been tremendously tedious. Instead I wrote a short code that does the process for me. After finishing my code it took under an hour to run all my images through it, and they are now posted on Flickr. Plus, Nicole was able to use the code for her images as well, so it was a huge time saver. Plus we got free pizza again for the IS&T meeting today. All in all it was a good end to a frustrating week.

July 31

This morning we went to the U of R to tour the labs of the interns that toured our labs yesterday. A lot of their research seemed really interesting and applicable. I thought the lab where they are attempting to connect artificial neurons to natural neurons was especially interesting. I also learned that when I stand in a small room that smells like mouse and watch an intern rip the heart out of a living mouse, cut its head off, and remove its brain, I pass out!! Or at least I almost did. I suppose I am fortunate to be working in astronomy and not a bio-engineering lab. Again we got free pizza, which is great because I am almost out of cash. After returning to RIT, I learned a better way to read TIFF files from Jake. Unfortunately, this did not solve the eroding problem that I had been having, so I still need to do it one array at a time. I tried it with one today and it worked, the challenge will be reintroducing the color and recompiling the images.

July 30

Today was another day full of experimentation in IDL. In the morning the Bio-engineering interns from the U of R came over and toured our labs to see what we have been doing. Then we got free lunch, pizza! Throughout the afternoon I worked on the eroding commands, just on a JPEG because I knew I had gotten it to work before. I finally figured out how to erode effectively, unfortunately it only works in the gray scale, and when I change the color table, it leaves me with either almost no information, or a really bright low resolution image that barely resembles my original. Fortunately, I think I am going to have to erode each array (R,G,B) separately in each TIFF file, so it wont really matter if they are gray scale because I can reintroduce color as I put them back together. Hopefully that works.

Tuesday, July 29, 2008

July 29

Today I finally managed to save the JPEG files as TIFF files. The problem was that TIFF files have a weird way of cataloging the color data, and its even weirder to write and read them with IDL. Needless to say, Jake helped me figure it out. Apart from converting all of my hastrom files into TIFF files, we also had a meeting with Steffi to discuss our progress over the last two weeks. Other than that, I didn't really get anything else done today. It doesn't sound like much but it was a busy day.

Monday, July 28, 2008

July 28

Today was another frustrating day working with IDL. I spent much of the morning participating in Visual Perception experiments. After that I went to lunch and started actually working around two. I managed to erode the images in IDL, which allowed me to save them as JPEGs. Although this was significant progress from last week, I had a new problem. Apparently my images need to be saved in TIFF format, which cannot be converted from JPEG. So I needed to go back to my hastromed FITS files and put them back together. Then I needed to figure out how to save as TIFF files, which was also complicated. The problem I have now is that I cannot open the files, so I cannot run the eroding process, so I am stuck again. Hopefully tomorrow I will learn a little bit better how to manipulate TIFF files because right now everything I try to do is failing because it is all different from JPEGs and FITS files.

Friday, July 25, 2008

July 25

Today I figured out how to get rid of almost all the background interference in my images, sort of. I found this program called iImage that opens out of IDL and can run several different filter and morph functions. The erode function works particularly well to destroy noise. The only problem is that the only way this program saves the images is in a weird file type (not JPEG) that I cannot manipulate in IDL. So, I need to figure out the commands in IDL to do the erode function, which is not as easy as I thought. Hopefully, with a little of help from Jake, I will be able to get this to work and actually make some forward progress, otherwise I will have to look for yet another method! Oh well, atleast it is Friday!!!

Thursday, July 24, 2008

July 24

I spent another day working to improve my hastrom images. Because IDL does not let you manipulate JPEGs with most filtering commands, I need to do the filtering to each layer of data as FITS files. I discovered several different techniques that I used in varying degrees and orders to try to reduce background noise. Most work well on the Optical, but because the UV is so scattered it is very difficult to separate the important data from the noise. Once I find the best way to do this, and get Jake's approval, I will begin writing a program that will go through the steps (there are many) so that I and the other interns can just run their galaxies through the program to refine their images without spending hours repeating commands. At least that is the plan right now, things often change around here. So yeah, I spent the day researching and fiddling with IDL, and have five or six potential products to show for it, hopefully Jake will like one of them...

Wednesday, July 23, 2008

July 23

Today was a day of experimentation. Having finished hastroming all the galaxies yesterday, my next task was to take the images and to some retouching to try and bring out the galaxies and reduce the background noise. Unfortunately, doing this through IDL is not as simple as it may sound. Throughout the day I tried smoothing, un-sharp masking, and both low pass and high pass filtering on galaxy NGC193. My attempts were met with varying degrees of success. The smoothing was a relatively fast and painless way to make some small gains with the resolution of the images, but did little to reduce background noise. The un-sharp making pro file could not be located (for some reason we don't have it) so I tried to do the same thing through a series of high pass filtering, subtractions, and smoothing, but found that it did little to improve the image. The low pass filtering seemed to be my most promising approach, however, after tinkering with the commands for about an hour I found that I could only get it to work if I used congrid on the image to resize it so that the kernels were compatible with the array. However, for some reason, somewhere in that process I kept losing the color. So right now I am able to use the low pass filtering, but it yields only black and white images, which defeats the entire purpose of the research. Hopefully Jake will have some words of wisdom for me when I go to the meeting in about 20 minutes, because I am at a loss of what to do next. On the brighter side, I got free pizza today for attending one of the undergraduate presentations on the research being done in the ultrasound lab. It was a little boring but worth it, and some of the research was interesting too. I hate to say it but Im already counting, 2 more days until the weekend!

Tuesday, July 22, 2008

July 22

Today was our first field trip. We went to Bausch and Lomb where Mr. Powell showed us around. In addition to seeing one of the manufacturing lines for contact lenses, we got to go into a few of the labs that do work and research surrounding current developments in optics at B and L. Needless to say, it was a great opportunity for us to see the kinds of jobs we may be looking at as graduating BS and MS students. After the tour (which lasted until about noon) we went out for lunch, Joe's treat. Then returned to RIT around one for a half day of work. In that time I managed to figure out the source of my problems with the four remaining galaxies, and fix them. Now all the data from the 14 galaxies has been successfully compiled and my results are posted on flickr. Overall, it was a pretty good day. I got to spend the morning on a tour, and the afternoon successfully fixing all my problems from last week and yesterday!

Monday, July 21, 2008

July 21

Today was good as far as Mondays go. I used hastrom to overlay three galaxies of images early this morning and showed them to Jake. He approved of these (they turned out much better than the ones I had made using the Hubble images). So I spent basically the rest of the overlaying the Far UV, the Near UV, and the optical images of all but two of my galaxies. The digitized sky survey optical images appear to have worked much better and the results can be found on my flickr account, under the set hastrom. Tomorrow I will finish up the last two galaxies and try to figure out why a few of them brought up errors today ( like 3 of them didnt work and I dont know why ) Plus tomorrow is the Bausch and Lomb tour so that will be good. That pretty much says it all, except Kevin and I helped Joe Pow and Bob Callens move this table that was like 12 feet long down two stories... on the steps! And thats what I did today.

Friday, July 18, 2008

July 18

Today was much better than yesterday. Early in the morning I figured out how to use Hastrom to allign the far UV, near UV, and optical images. Although I now understand the process, my results were not quite what we had in mind. Because of the differences in the images between the telescopes the compiled images are either zoomed to far out to get good detail on the galaxy, or too close, where the UV images have very poor resolution. I spent much of the day trying to discover a better way to compile the images and testing them. I finally got to talk to Jake about and hour ago and he recommended trying to use the digitized sky survey images instead of the Hubble Telescope images. He also mentioned looking up some smoothing and un-sharp mask commands for IDL to help the detail of the images. The good news is that I already downloaded the digitized sky survey images, the bad news is that I have to start over again with these new images. At least I know what to do Monday next week!

Thursday, July 17, 2008

July 17

Today was one of the more discouraging days of this internship. I am now working to overlay the Far UV, Near UV, and Optical Images of each galaxy. In order to do this, I need to use information from the header to make sure the alignment is exact. In order to use the header the files needed to be saved as FITS files, and I had saved all of my UV images as JPEGs. So I spent the day finding the galaxies in the big UV FITS files and saving the desired galaxies as FITS files, instead of JPEGs. Unfortunately, after hours of re-finding and reformatting galaxies, I realized that once you change a FITS file in any way shape or form, you lose the valuable information in the header. So basically, I spent the entire today doing something that did absolutely nothing to help get my work done. Tomorrow I will start in just about the same spot I started today, except with the knowledge that saving all the galaxies as reformatted FITS files is a terrible waste of time!!! Oh yeah, the word on the board from this morning ASTORIA which has some relevance to Carlson, the scientist for which this building is named for. But beyond that I am not really sure what it means, but it is on a plaque in the front lobby, so it must mean something.

Wednesday, July 16, 2008

July 16

Today I finished processing the optical images from the telescope, without any problems except for one galaxy which was too big so I had to change some of my UV data to correspond with the optical. After I posted all the optical images on Flickr, I didn't really have anything to do. As soon as Jake found out he sent me an email asking me to overlay the images that I collected from the far UV, near UV, and optical of each galaxy. I started to learn the process from Nicole and Kevin, but didn't really have enough time to make any significant progress. Tomorrow I will see if basically all the work I have done so far was accurate enough to make this next process possible, or bad enough to make it nearly impossible. Hopefully it is not the latter of the two! : )

Tuesday, July 15, 2008

July 15

Today we visited one of the remote sensing labs. There they work on developing the technology used to take high quality pictures of the earth and infrastructure from a long ways away, usually from an airplane. One technology that they are currently working on is to detect propane, methane, and other gas leaks so that a quick fly-by can check for malfunctions in large processing plants and pipe-lines. Remote sensing seemed like it was making some really interesting progress and the researcher there mentioned that some interns might have the opportunity to help out occasionally. With any luck I will be able to take some time out of my astronomy work to do a little remote sensing research. After the tour, the real work began. My task today was to start collect and catalog the optical images of the galaxies that I already have UV data for. It took most of the morning to download them all off the internet, and then we had our coffee break followed shortly by our lunch, and that was followed by our meeting where we report our progress for the week to Steffi and Chris. After explaining what I had done and what I was doing next, Chris recommended that I use the optical images from the Hubble Telescope that RIT has on file. So Jake sent me the location of the files and I started over in my search for optical images of my galaxies. After that, I had just enough time to save a few of them as both jpeg and fits files so I can work with them later and so I can post the online (hopefully tomorrow). Thats about it, 15 minutes and we have our afternoon meeting and I get to explain everything I just wrote to the group, and then Im out of here!

Monday, July 14, 2008

July 14

Ahhh Monday! Getting up this morning was more than difficult, but I made it through. This morning was a little slow. Our morning Astronomy meeting has been canceled because Jake has two classes to teach (at the same time) from 9 to 12. So that means that Jake is gone, and a few of the undergrad students as well, notably Greg who usually helps me when I get into trouble. The first problem of the morning was that the network was down because of the repairs made over the weekend. Once that came up I spent about and hour wrestling with IDL because the "pro" folder I loaded from Kevin didn't have all the files in it. After discovering my problem (greg discovered it) I spent the rest of the day pinpointing the galaxies and converting their close-ups into JPEGS. They are now posted on my Flickr account at http://www.flickr.com/photos/28667018@N08/ Believe it or not, that took basically the entire day, but at least now I have some proof that I have been doing something around here!!

Friday, July 11, 2008

July 11

Another day in the Astro department has come and gone, almost. We started our morning with the intern meeting as usual, but Bob brought donuts so that helped wake me up. Then we had our morning astro meeting, which was the same as always, and went to work. After about five minutes though Bob came down and grabbed Kevin and I to help move this optical bench, which is really a big hunk of metal supported by two granite blocks. HEAVY!! But now it makes a nice display in the lobby of the Carlson building. After that I spent pretty much the entire day doing the same thing I did yesterday, except with the far UV images. So now i have two stacks of papers with pretty pictures of galaxies on them!! Monday I will probably turn them into JPEGS so I can post them online. So that was my day. Oh yeah, Bob and Joe wanted us to pick a job from the list in the hall assuming we had the necessary qualifications. I guess I would probably pick the Imaging scientist / engineer for Aptina Imaging because it would give me a chance to do some engineering (what I hope to go to college for) and work to improve the way digital cameras capture images, which is pretty cool and cutting edge. So yeah, that was my day, and soon I can leave and it will be the weekend. Life is good : )

Thursday, July 10, 2008

July 10

Today was an interesting day. Our morning intern meeting was transformed into a quick example of how our eyes work. We turned the lights out in the room and allowed our pupils to dilate so we could see ( sort of ) in the dark, then covered one eye and went outside exposing the other eye to light, then back into the room. After that we could see with the eye that had been covered but not with the other. I am supposed to explain this phenomenon in my blog so here goes... when your eye is exposed to light the pupil contracts, reducing the amount of light entering the eye to avoid damage, however, when little light is present the pupil dilates to allow as much light in as possible. As a result, the uncovered eye contracted when we left the room and the covered eye remained dilated, so we could only see effectively with the dilated eye when we returned to the room. After that I spent basically the entire day viewing the images I downloaded and reformatted yesterday. For each one I had to find the galaxy of interest, highlight it and print both a close and far view of the galaxy. Then each printout had to be labeled with the correct image information, galaxy name, and exact coordinates within the image of the galaxy. Overall it was a pretty repetitive day and I am looking forward to Friday and the weekend.

Wednesday, July 9, 2008

July 9

Today was much busier than yesterday. I changed my focus from the sphere project in the 3D digital immersion lab to a project analyzing UV photos of galaxies. Because the main project with the sphere was to figure out how to project a good image onto it, and I do not have a good understanding of the technical programming involved in making this modification, I felt a little useless. So I talked to Jake about it and he was OK with me switching projects, at least for the time being. After that I spent most of the afternoon downloading the UV images of 20 galaxies from the Galex site. Four of the galaxies were missing, but the other 16 had good images so I downloaded those, which took a while. In the midst of that we had our daily coffee break, which was rather quiet, nobody really has a lot to say that early in the morning. I finished the downloads before we left for lunch around one. Then when we came back from the Crossroads I began reformatting the images so that I can work with them. Using the PuTTy unix app I untared all the images and then unzipped them, which sounds simple but is really rather time consuming because you have to do each galaxy one at a time. Now I am about to begin actually viewing and scaling the images, but chances are I wont get much headway before we have our meeting and leave. Tomorrow should prove to be a little more rewarding.

Tuesday, July 8, 2008

July 8

My second day at RIT is coming to a close. Im still adjusting but at least now it feels like I have something to do around here. I am officially working in the 3D digital immersion project. We got the big balloon in the mail today so my first task was to get that and blow it up. Then we built a stand out of PVC pipes to keep the 6 foot diameter sphere off the ground and from rolling around. That took most of the morning, along with the astronomy coffee break and lunch break. Then at two we had a team meeting about the 3D stuff, and showed the sphere and stand to Jake. After that we hooked up one of the projectors to try and see how good or bad the image was on the sphere. Its surprisingly good, except the edges which are really distorted, but with a little tampering with either the graphics card or the display program itself we should be able to make it project better. A few of the undergrad students are looking into the formulas and the programming necessary to make this thing work. At the very least it should be challenging. Well the lights just turned off in the room which means I have been sitting in front of this lap top too long, better get up and do something!!

Monday, July 7, 2008

Monday July 7

Today was the first day of my 7 week internship with the college of imaging science at RIT!! It was pretty much just a set up day. We learned how to clock in, set up our computer accounts, got a tour of the campus, and a tour of the Carlson Building. We also spent a bunch of time in the red barn doing team building activities, some were fun and others were just weird, but we got to know each other. Finally, we split up and the astronomy group met with Dr. Jake Noel Storr and we got our basic duties and jobs set up, along with some computer programs... I think my main project for the summer will be working with the 3D immersive environment, our as it is popularly known the "cube" Hopefully that will be fun, even though I don't really know how to program. Anyway, its nice to get the first day out of the way, maybe tomorrow I can actually start doing something of significance.