Path: news.mathworks.com!not-for-mail
From: <HIDDEN>
Newsgroups: comp.soft-sys.matlab
Subject: HARRIS Cornerness measure -- Confusion!?!
Date: Wed, 11 Jun 2008 16:39:02 +0000 (UTC)
Organization: The MathWorks, Inc.
Lines: 21
Message-ID: <g2ov36$fh4$1@fred.mathworks.com>
Reply-To: <HIDDEN>
NNTP-Posting-Host: webapp-02-blr.mathworks.com
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: 8bit
X-Trace: fred.mathworks.com 1213202342 15908 172.30.248.37 (11 Jun 2008 16:39:02 GMT)
X-Complaints-To: news@mathworks.com
NNTP-Posting-Date: Wed, 11 Jun 2008 16:39:02 +0000 (UTC)
X-Newsreader: MATLAB Central Newsreader 1410327
Xref: news.mathworks.com comp.soft-sys.matlab:473317



Dear all,

I am wondering that how come there are many solutions to 
the Cornerness measurement on Harris corner dectection.

The novel one is:
C= det(M)-k*trace(M).^2

right?

but there are those in:
1) C= trace(M)./det(M)
2) C= det(M)./(trace(M)+eps)
3) C= (k+1/k)*det(M)-(trace(M).^2-2det(M))

Does anyone have any theories support these latter three 
equations? It seems that some of them also concentrate on 
edges plus corners but I really can't find any documents 
supported these equations.

Please help me out. Thank you so much.