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Showing posts with label Pictures. Show all posts
Showing posts with label Pictures. Show all posts
Tuesday, September 14, 2010
Monday, July 26, 2010
One Small Step Closer to the Ball of Cheese
I checked the weather forecast and to my delight found no "scattered thunderstorms". It was going to be clear skies and a bright full moon. I rounded up my telescope and camera gear and headed out to see the full moon clearer than I've ever seen it. It was magnificent! The big ball of cheese we take for granted that sits up there illuminating our night sky was filling up my lens.
I attached the regular 20mm lens and could see the whole moon within the field of view. Then I added the 3x Barlow lens and could see the craters up close and personal. I also tried out the 6.3mm and again got a clear view of the detailed war-like terrain on the face of the moon.
I saw the Tycho crater clearly with its streaks flying out like the spokes of a bicycle wheel. I saw most of the seas (the darker depressions on the surface) and many more craters recording the history of the battered sphere.
After viewing it through the lenses I decided to hook it up to my camera and snap some pix.
Here's what it looked like through the 20mm lens.

and here's how it looked through the Barlow lens:




It's magnificent how man has set foot on this natural satellite (God Bless Nasa - if you don't believe in the conspiracy :)). If you think its a conspiracy, watch the Myth-busters episode on proving whether the moon-landing was a hoax.
The moon's diameter is quarter the size of earths. Its mass is 1/81 of the earth's mass. The average distance between the earth and moon is 384403 km. Despite the distance my telescope has succeeded in showing me it like I've never seen before by my naked eye. Truly amazing.
[My telescope is a 127mm Celestron]
I attached the regular 20mm lens and could see the whole moon within the field of view. Then I added the 3x Barlow lens and could see the craters up close and personal. I also tried out the 6.3mm and again got a clear view of the detailed war-like terrain on the face of the moon.
I saw the Tycho crater clearly with its streaks flying out like the spokes of a bicycle wheel. I saw most of the seas (the darker depressions on the surface) and many more craters recording the history of the battered sphere.
After viewing it through the lenses I decided to hook it up to my camera and snap some pix.
Here's what it looked like through the 20mm lens.
and here's how it looked through the Barlow lens:
It's magnificent how man has set foot on this natural satellite (God Bless Nasa - if you don't believe in the conspiracy :)). If you think its a conspiracy, watch the Myth-busters episode on proving whether the moon-landing was a hoax.
The moon's diameter is quarter the size of earths. Its mass is 1/81 of the earth's mass. The average distance between the earth and moon is 384403 km. Despite the distance my telescope has succeeded in showing me it like I've never seen before by my naked eye. Truly amazing.
[My telescope is a 127mm Celestron]
Labels:
Astronomy,
Interesting,
Photography,
Pictures,
Space
Monday, March 29, 2010
Augmented Reality
Recently I had a computer vision assignment that was loads of fun. The assignment was on calibrating a camera based on images of a calibration grid (checkered board shown below) from different angles.

Once the calibration was done using linear algebra we were able to project clipart images onto the calibration grid. This is the same as the projected advertisements you see on football fields on TV.

Then we augmented images with 3D structures. The first was a 3D cube which looks like its sitting on the calibration grid. Its a bit hard to see the outline of the cube in the image below, so you may want to click on it to view it enlarged. The second is a 3D mesh object which is projected onto the grid.


zoomed in...

Once the calibration was done using linear algebra we were able to project clipart images onto the calibration grid. This is the same as the projected advertisements you see on football fields on TV.

Then we augmented images with 3D structures. The first was a 3D cube which looks like its sitting on the calibration grid. Its a bit hard to see the outline of the cube in the image below, so you may want to click on it to view it enlarged. The second is a 3D mesh object which is projected onto the grid.


zoomed in...
Labels:
Graphics,
Interesting,
Mathematics,
Pictures,
University
Wednesday, October 08, 2008
Wednesday, September 03, 2008
Photos that Changed the World!
The link below displays some of the most famous and controversial pictures. Some of them are horrifying so please be warned.
www.photosthatchangedtheworld.com
www.photosthatchangedtheworld.com
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