User talk:KYN

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[edit] Welcome to Wikipedia

Hello and welcome to Wikipedia. You may want to take a look at the welcome page, tutorial, and stylebook, avoiding common mistakes and Wikipedia is not pages.

I hope you like the place and decide to stay. Here are a few good links for newcomers such as yourself:

I hope you enjoy editing here and being a Wikipedian! By the way, you can sign your name on Talk and vote pages using three tildes, like this: ~~~. Four tildes (~~~~) produces your name and the current date. If you have any questions, see the help pages, add a question to the village pump or ask me on my talk page. Again, welcome! -- Spinboy 21:25, 17 October 2005 (UTC)

[edit] CV Wikicity

Hi, I noticed you have an interest in Computer Vision. You might also be interested in the new wikicity called computervision.wikicities.com. The aim of this new wiki is to become a encyclopedia of computer and machine vision, and deal with these topics in a far more indepth way than Wikipedia is able. It is intended to host articles, code samples, conference and publication reviews, and perhaps sometimes some original research. The wiki is very new and needs a lot of work. Hope to see you there sometime. Seabhcán 21:42, 2 November 2005 (UTC)

[edit] hey, thanks for linking Instantaneous frequency and Analytic signal

i might have to get in one or the other and change \phi \ to \theta \ or vise versa, so that there is more consistency. r b-j 05:30, 10 November 2005 (UTC)

[edit] Thanks

Hi, thanks for fixing all my typos in the instantaneous phase article. I will try to remember not to edit late Friday night. KYN 07:34, 12 November 2005 (UTC)

Sure. I've got a browser tool that does the work for me, so it's no big deal.
By the way, if you use ~~~~ to sign your name, it makes your name a clickable link to your user page, like this: — Omegatron 16:58, 12 November 2005 (UTC)

[edit] Computer Vision

Thanks for input..but I don't see exactly how you want me to change the editing I done on Computer Vision...so here is little more explaination for you, may be you can help editing.

Well, it is goverment project to distinguish smoke from tank smoke, dust cloud, and cloud in sky. It uses the image patterns like fractals, huge algorithm (size expansion with axil spinns), edge detection, template noise elimination, etc... it was an example, I think I need your help, I feel like I know what I know but may be I am expressing way that is not correct... can you send me an e-mail steve.kim@comcast.net. Hope to we can come up with better writing, together. thanks.

Also please see http://72.14.207.104/search?q=cache:b_EhvNrl7KEJ:www.ercim.org/pub/bscw.cgi/d56946/Computer%2520Vision%2520Based%2520Method%2520for%2520Real-time%2520Fire%2520and%2520Flame%2520Detection+Pattern+Recognition+Detecting+Clouds+and+Cloud+using+computer+vision&hl=en&gl=us&ct=clnk&cd=67

Stevekimcomcastnet 22:19, 7 February 2006 (UTC)

[edit] reply to computer vision / dendrogram

Just letting you know that i replied to your message on my user page. - BAxelrod 22:19, 14 February 2006 (UTC)

[edit] Regarding Joseph Mundy

I agree, that Joseph Mundy should not get that much attention on the Computer Vision page. I'll move it on an extra page. No need to ask me anyway. I'm used to it, that my stuff gets edited like hell. That's what the Wikipedia is all about. Wedesoft 22:55, 8 March 2006 (BST)

[edit] Category naming conventions and stub types

Just wanted to point you to Wikipedia:Naming conventions#Do not use an article name that suggests a hierarchy of articles, which suggests not using forward slashes in article and category names. There's also Wikipedia:Naming conventions (categories) for other useful information.

Also, if you want to create a new stub category you should probably do it by proposing at Wikipedia:WikiProject Stub sorting/Proposals (different in that it's actually a subpage of the main stub sorting page). There's also information on how to integrate your stub category into Wikipedia, by using stub templates and so on.

–Unint 01:15, 28 March 2006 (UTC)

[edit] Category renaming

You wrote: The categories which you tagged for renaming have been renamed in accordance to your suggestions and the old categories can be deleted. Don't know how to do this, but maybe you do?

well, yes i do. i also know how and when category renaming's done. it's done after the debate on what the new names should be at WP:CFD - not while the debates still going on - and using "move" rather than simply making new categories. as it is, better names than those i suggested have been proposed and are likely to be chosen for these categories, so renaming them to those ones was a Bad Idea. BL Lacertae - kiss the lizard 23:49, 15 April 2006 (UTC)

[edit] CWT

The papers mentioned in the external links in the complex wavelet transform refer to some uses in computer vision. Supten 08:34, 13 May 2006 (UTC)

I have added a paragraph. You may kindly expand further Supten 10:03, 15 May 2006 (UTC)

[edit] Nyquist

I replied on my user talk page to your question there. Dicklyon 05:13, 31 July 2006 (UTC)

Find more responses there as before. Dicklyon 03:46, 3 August 2006 (UTC)

[edit] Polly (robot)

Hi --

Polly wasn't just an application of computer vision: new algorithms were developed for it. one is described on the page. So I don't get why you changed the category? --Jaibe 06:54, 2 August 2006 (UTC)

Hi -- It's a stub, it doesn't talk about much of anything yet. But the algorithms that Polly used for vision were pretty significant. I wouldn't say Polly really applied vision since in fact all the things it used were pretty novel. --Jaibe 21:32, 2 August 2006 (UTC)
Hi -- I think listing it as a computer vision stub would be a good solution, but that's not in the list of stubs on wikipedia. could you tell me how to do that? Also, please sign your comments, it saves me going to history to find your talk page :-) --Jaibe 02:12, 13 August 2006 (UTC)
those stubs editing people are crazy!! I just barely prevented them deleting the AI stubs a month ago & then they still renamed it! I'll see if I can get it fixed... (though what it takes is creating a bunch of vision stubs which I can't really do.) Have a look at or comment on this: [1]

--Jaibe 03:21, 14 August 2006 (UTC)

[edit] Inst freq

In [[signal processing, the concept of frequency often plays an important role. However, the basic defintion of frequency implies that the signal is a sinusodial:

s(t) = Acos(ωt)

where ω is the frequency of this signal. For a signal which is not of this type, frequency can still be discussed but now there are different ways to do that. The most common approach is to consider the signal's Fourier transform

F(\omega) = \int_{-\infty}^{\infty} f(t) e^{-i \omega t} dt

which implies that the signal f is decomposed into components, all being sinusodial and each with their own frequency. For example, the signal

s(t) = A1cos(ωt) + A2cos(2ωt)

consists of two components with frequencies ω and 2ω, respectively.

Another approach to define frequency is to consider the instantaneus frequency of the signal. Although the defintion of this concept is somewhat technical, the idea is simple. A sinusodial signal has a phase which is the angle on which the cosine or sine is taken. For a sinusodial function, the phase is always a linear function of t, with a slope given by the frequency. In principle, the phase angle can be computed from the signal itself using the analytic signal, a function of t which can be derived from the signal itself. More precisely, the phase is the argument of the complex-valued analytic signal, meaning that phase also is a function of t. Since the analytic signal is well-defined for most general signals, including non-sinusodial signals, this means that the phase can be computed

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