Changeset 3156

Timestamp:

Feb 7, 2005, 6:56:59 PM (21 years ago)

Author:

eugene

Message:

minor mods

Location:

trunk/doc

Files:

• . (modified) (1 prop)
• .cvsignore (modified) (1 diff)
• design/ps1_ipp_cluster_io.sxc (modified) ( previous)
• misc/Makefile (modified) (1 diff)
• misc/Objects.tex (modified) (5 diffs)

trunk/doc

@@ -5 +5 @@
 *.log
 *.out
+PSDC

@@ -5 +5 @@
 *.log
 *.out
+PSDC

trunk/doc/.cvsignore

@@ -1 +1 @@
 *.log *.dvi *.aux *.toc *.log *.out
+PSDC

trunk/doc/misc/Makefile

@@ -1 @@
-# $Id: Makefile,v 1.3 2004-11-30 18:05:51 eugene Exp $
+# $Id: Makefile,v 1.4 2005-02-08 04:56:59 eugene Exp $
 
 PDFLATEX = env TEXINPUTS=../../latex/inputs:$(TEXINPUTS):.: pdflatex
 PSLATEX  = env TEXINPUTS=../../latex/inputs:$(TEXINPUTS):.: latex
 
-all : codeConventions.pdf
+all : codeConventions.pdf perlCodeConventions.pdf
 
 %.pdf: %.tex

trunk/doc/misc/Objects.tex

@@ -15 +15 @@
 \maketitle
 
-\section{}
-
-Object Detection
+\section{Object Detection}
 
 Object detection consists of smoothing the image with a kernel
@@ -44 +42 @@
 sparse images with few peaks.  
 
-Object Classification
+\section{Object Classification}
 
 After objects have been detected by finding their peaks, some basic
@@ -99 +97 @@
 simple moments, and must be tested on a case-by-case basis.
 
-Object Measurements
+\section{Object Measurements}
 
 We have several goals in measuring the objects in the image.  We would
@@ -227 +225 @@
 Speed vs Detail
 
-
 PSF Model    Typical Execution Time (msec / object)
 Pgauss       1.5
@@ -247 +244 @@
 radii is small, so binning together pixels can increase the
 signal-to-noise per-pixel and speed up the analysis without
-diminishing the accuracy of the measurement.
+significantly diminishing the accuracy of the measurement.
 
 Stellar Densities
 
-APIs
-
-typedef struct {
-  int x;
-  int y;
-  int class;  /* an enum? */
-  float counts;
-} Peaks;
-
-class: isolated, edge, flattop
-
-typedef struct {
-  float x;
-  float y;
-  float sx;
-  float sy;
-  float sxy;
-  float zsum;
-  float zpeak;
-  float sky;
-} ObjectStats;
-
-pmFindImagePeaks (psImage image, 
+Galaxy Models
+
+Names:
+
+Peak, Source, Object, Star, Galaxy, PSF 
+
+Peak: a single pixel higher than its 8 neighbors
+
+Source: 
+
+Models:
+ real Gaussian:   f(z) = Zo exp (-z) + So
+ pseudo Gaussian: f(z) = Zo (1 + z + (1/2) z^2 + (1/6) z^3)^(-1)
+ Waussian (?):    f(z) = Zo (1 + z + B_1 (1/2) z^2 (1 + B_2 (1/3) z))^(-1)
+ Core Powerlaw:   f(z) = Zo (1 + z_1 + z_2^n)^(-1)
+ moffat func:
+ sersic           f(z) = Zo exp (-z^n) (n integer? n/2 integer?)
+ sersic w/ core   f(z) = Zb (1 + z + (1/2) z^2 + (1/6) z^3)^(-1) + Zd exp (-A z^n)
+ (n = 1/2 : exponential disk; n = 1/8 : deVau)
 
 \end{document}

@@ -5 +5 @@
 *.log
 *.out
+PSDC