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Benvenuti in queste pagine dedicate a scienza, storia ed arte. Amelia Carolina Sparavigna, Torino

Showing posts with label Image processing. Show all posts
Showing posts with label Image processing. Show all posts

Sunday, February 24, 2019

Komatsuna


KOMATSUNA dataset for instance segmentation, tracking and reconstruction.

Hideaki Uchiyama, Shunsuke Sakurai, Masashi Mishima, Daisaku Arita, Takashi Okayasu, Atsushi Shimada and Rin-ichiro Taniguchi, "An easy-to-setup 3D phenotyping platform for KOMATSUNA dataset," ICCV Workshop on Computer Vision Problems in Plant Phenotyping, pp.2038-2045, 2017. [link]


Image Databases

CVonline: Image Databases, by Robert Fisher.

Collated list of image and video databases  useful for computer vision research and algorithm evaluation.

CVonline: Image Databases

Tuesday, August 12, 2014

Geoglyphs of Titicaca - 1



Earthworks near Titicaca Lake create "geoglyphs"
These earthworks are known as "raised fields" and "waru-warus".

The image, obtained from Google Maps, shows the network of earthworks separated by canals - near the Titicaca Lake (Huata, Puno, Peru). This is an ancient agricultural technique used by Andean people starting from the first millennium BC. Note that the structure of the network is created after a careful planning. Each raised field is approximately 10 meters large and more than one hundred long.


More on Titicaca

arXiv:1009.4602 [pdf] Geoglyphs of Titicaca as an ancient example of graphic design,
Amelia Carolina Sparavigna
arXiv:1009.2231 [pdf] Symbolic landforms created by ancient earthworks near Lake Titicaca, Amelia Carolina Sparavigna

A.C. Sparavigna (2012) 
Image Processing for the Enhancement of Satellite Imagery. In: Image Processing: Methods, Applications and Challenges / Vítor Hugo Carvalho. Nova Science Publishers, Inc. (USA), pp. 149-161. ISBN 9781620818442 

A.C. Sparavigna, R. Marazzato (2011)
Using Geographic Information Systems to Increment the Knowledge of Cultural Landscapes. In: Smart Tech & Smart Innovation, La strada per costruire il futuro, Torino, 15-17 Novembre 2011. 
[img] [img]
A.C. Sparavigna (2010)
The geoglyphs of Titicaca. In: ARCHAEOGATE n. 13-10-. - ISSN 1973-2953 
[img] [img]


Thursday, August 22, 2013

Moving sand dunes on Mars

Moving Sand Dunes on Mars, by Amelia Carolina Sparavigna, Department of Applied Science and Technology, Politecnico di Torino, Torino, Italy

Abstract: It was recently announced that the sand dunes on Mars can move. This important result was obtained by means of the High Resolution Imaging Science Experiment (HiRISE), the camera onboard the Mars Reconnaissance Orbiter. The images, recorded three years apart, of the dunes in the Nili Patera caldera show that they move. Here we compare an image HiRISE of 2007 with an image of 1999 recorded by the Mars Global Surveyor. Therefore, with the help of Gimp, the GNU image processing software to enhance the images, we can see and measure the motion of the dunes during a longer period of time.

A dune on Mars which is moving. In the Nili Patera caldera.
199 on the left, 2007 on the right


More details and article at:


Sunday, September 23, 2012

Robert Wilson: Portraits at Palazzo Madama

Video portraits by Robert Wilson, an artist, choreographer, painter, video artist, sound and light designer -http://robertwilson.com/about/biography, at Palazzo Madama, from 20th September to 06th January 2013.
Subjects of his video-portraits are among the others,  actors such as Brad Pitt and  Johnny Depp, and a  Nobel Laureate, the writer Gao Xingjian. His videoportrait is in the treasure tower of the Palazzo. We can see him on the bent glasses of  a showcase of  the tower.






Friday, June 1, 2012

NGC 891

Another superb image at http://apod.nasa.gov/apod/ap120526.html
" This sharp cosmic portrait features NGC 891. .. At first glance, it has a flat, thin, galactic disk and a central bulge cut along the middle by regions of darkobscuring dust. The combined image data also reveal the galaxy's young blue star clusters and telltale pinkish star forming regions. And remarkably apparent in NGC 891's edge-on presentation are filaments of dust that extend hundreds of light-years above and below the center line. The dust has likely been blown out of the disk by supernova explosions or intense star formation activity. "

Here the NASA image after processing with AstroFracTool and Iris


Wednesday, November 23, 2011

A young Leonardo


A young Leonardo da Vinci - A superposition of images.
See how I processed them at
http://arxiv.org/abs/1111.4654
and also
http://www.technologyreview.com/blog/arxiv/27361/

Wednesday, January 5, 2011

Iris Nebula

Iris Nebula LBN 487 and NGC 7023 in Cepheus


From an image by Hewholooks, which is the user page of Hunter Wilson. Images may be seen at http://hwilson.zenfolio.com/f129011888 or on
Wikimedia athttp://commons.wikimedia.org/wiki/Special:Search?search=hewholooks