Comprehensive Meaning Of Segmentation By Clustering

Written by Eng.Mohamed S. El Kayyali

Segmentation as a word, means to classifyrepparttar objects that are exists in an image, it has many theories and methodologies, assume that we would like to recognize objects in an image, there are too many pixels to handle each individually, instead, we should like some form of compact, summary representation.

Although, superficially these different methods may seem some how complicated for any reader, in this article I will demonstraterepparttar 141713 meaning of clustering in segmentation.

One natural view of segmentation is that we are attempting to determine which components of data set naturally belong together. This is a problem known as clustering. We can cluster in two ways:

-Partitioning: here we have a large data set, and curve it up according to notion ofrepparttar 141714 association between items insiderepparttar 141715 set. We would like to decompose it into pieces that are good according to our model. For example we can decompose an image into regions that have coherent color and texture.

-Grouping: in this part we have distinct data items, and we would like to collect sets of data items that make sense together.

The key here is to determine what representation is suitable forrepparttar 141716 problem at hand, we need to know by what criteria a segmentation method should decide which pixels belong together and which do not.

Troubleshooting Your Dish Network Receiver

Written by Nick Smith

It has happened to all of us. It’s fourth and ten with just 1:42 to go inrepparttar second half – and of course your team is down. The weather outside is getting worse and worse. Suddenly,repparttar 141712 image on your TV looks eerily likerepparttar 141713 snow falling outside your window. It is a race againstrepparttar 141714 game clock to get picture back on your TV before you have to resign and just look forrepparttar 141715 score onrepparttar 141716 evening news.

Remember, only on a rare occasion will you lose picture with Dish Network - when you do, more often than not, there is nothing wrong with your equipment orrepparttar 141717 service. This article discusses some ofrepparttar 141718 easiest and fastest ways to troubleshoot your Dish Network receiver.

From High inrepparttar 141719 Sky to Your Dish Network Receiver

Dish Network uploads programming to its satellites via gigantic transmission stations on earth. The digital image travels upward throughrepparttar 141720 atmosphere where it eventually finds satellites orbitingrepparttar 141721 Earth miles aboverepparttar 141722 United States. Those satellites capture and resendrepparttar 141723 digital signal in such a way that nearly everyone with a plain view ofrepparttar 141724 sky can receive it. The signal is collected byrepparttar 141725 ubiquitous mini-dishes and sent through cables to your Dish Network receiver, which is set up to decode and convertrepparttar 141726 digital signal to a viewable picture. That viewable picture is transferred to your brand-new, 56 inch widescreen plasma TV, where only moments ago you were watchingrepparttar 141727 second half of your favorite team’s football game.

The Game Plan

If you suddenly lose picture on your TV,repparttar 141728 problem could be in any one of six places – but before you panic, let me tell you you’re only going to have to check four of them.

The Dish – If something interferes withrepparttar 141729 signal getting fromrepparttar 141730 satellite down to your dishrepparttar 141731 picture is obviously going to suffer. Ifrepparttar 141732 signal is completely blocked, your picture will disappear. Make sure that there is nothing between your dish and where your dish is pointing inrepparttar 141733 sky. This could include: a tree branch, your motor home, your neighbor’s motor home, a build-up of snow, ice, or excessive water onrepparttar 141734 dish, or anything else you could possibly imagine. Luckily,repparttar 141735 solution is simple. Getrepparttar 141736 signal flowing freely back to your Dish Network receiver by removingrepparttar 141737 obstruction. Of course, ifrepparttar 141738 obstruction is your neighbor’s prize winning oak tree, be judicious as you contemplate ways of removing it (i.e. talk to her about it and figure out a solution together). If it is ice or snow just wiperepparttar 141739 dish clean, and you’ll be back to your game before they even snaprepparttar 141740 ball.

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