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Diffstat (limited to 'SD-VBS/benchmarks/sift/src/matlab/plotsiftframe.m')
-rw-r--r-- | SD-VBS/benchmarks/sift/src/matlab/plotsiftframe.m | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/SD-VBS/benchmarks/sift/src/matlab/plotsiftframe.m b/SD-VBS/benchmarks/sift/src/matlab/plotsiftframe.m deleted file mode 100644 index 984dfc9..0000000 --- a/SD-VBS/benchmarks/sift/src/matlab/plotsiftframe.m +++ /dev/null | |||
@@ -1,119 +0,0 @@ | |||
1 | function h=plotsiftframe(frames,labels) | ||
2 | % PLOTSIFTFRAME Plot SIFT frame | ||
3 | % H=PLOTSIFTFRAME(FRAMES) plots the SIFT frames FRAMES and returns | ||
4 | % and handle H to the resulting line set. FRAMES has the same format | ||
5 | % used by SIFT(). | ||
6 | % | ||
7 | % PLOTSIFTFRAME(FRAMES, LABELS) displays nearby the frame centers | ||
8 | % the indexes specified by the vector LABELS. This operation is slow | ||
9 | % for large sets of frames. | ||
10 | % | ||
11 | % A SIFT frame is denoted by a circle, representing its support, and | ||
12 | % one of its radii, representing its orientation. The support is a | ||
13 | % disk with radius equal to six times the scale SIGMA of the | ||
14 | % frame. If the standard parameters are used for the detector, this | ||
15 | % corresponds to four times the standard deviation of the Gaussian | ||
16 | % window that has been uses to estimate the orientation, which is in | ||
17 | % fact equal to 1.5 times the scale SIGMA. | ||
18 | % | ||
19 | % This function is considerably more efficient if called once on a | ||
20 | % whole set of frames as opposed to multiple times, one for each | ||
21 | % frame. | ||
22 | % | ||
23 | % See also PLOTMATCHES(), PLOTSIFTDESCRIPTOR(), PLOTSS(). | ||
24 | |||
25 | % AUTORIGHTS | ||
26 | % Copyright (c) 2006 The Regents of the University of California. | ||
27 | % All Rights Reserved. | ||
28 | % | ||
29 | % Created by Andrea Vedaldi | ||
30 | % UCLA Vision Lab - Department of Computer Science | ||
31 | % | ||
32 | % Permission to use, copy, modify, and distribute this software and its | ||
33 | % documentation for educational, research and non-profit purposes, | ||
34 | % without fee, and without a written agreement is hereby granted, | ||
35 | % provided that the above copyright notice, this paragraph and the | ||
36 | % following three paragraphs appear in all copies. | ||
37 | % | ||
38 | % This software program and documentation are copyrighted by The Regents | ||
39 | % of the University of California. The software program and | ||
40 | % documentation are supplied "as is", without any accompanying services | ||
41 | % from The Regents. The Regents does not warrant that the operation of | ||
42 | % the program will be uninterrupted or error-free. The end-user | ||
43 | % understands that the program was developed for research purposes and | ||
44 | % is advised not to rely exclusively on the program for any reason. | ||
45 | % | ||
46 | % This software embodies a method for which the following patent has | ||
47 | % been issued: "Method and apparatus for identifying scale invariant | ||
48 | % features in an image and use of same for locating an object in an | ||
49 | % image," David G. Lowe, US Patent 6,711,293 (March 23, | ||
50 | % 2004). Provisional application filed March 8, 1999. Asignee: The | ||
51 | % University of British Columbia. | ||
52 | % | ||
53 | % IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY | ||
54 | % FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, | ||
55 | % INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND | ||
56 | % ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN | ||
57 | % ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. THE UNIVERSITY OF | ||
58 | % CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT | ||
59 | % LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
60 | % A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" | ||
61 | % BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE | ||
62 | % MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. | ||
63 | |||
64 | % -------------------------------------------------------------------- | ||
65 | % Check the arguments | ||
66 | % -------------------------------------------------------------------- | ||
67 | |||
68 | if size(frames,1) ~= 4 | ||
69 | error('FRAMES should be a 4xK matrix') ; | ||
70 | end | ||
71 | |||
72 | K = size(frames,2) ; | ||
73 | |||
74 | if nargin > 1 | ||
75 | putlabels = 1 ; | ||
76 | end | ||
77 | |||
78 | % -------------------------------------------------------------------- | ||
79 | % Do the work | ||
80 | % -------------------------------------------------------------------- | ||
81 | |||
82 | hold on ; | ||
83 | K=size(frames,2) ; | ||
84 | thr=linspace(0,2*pi,40) ; | ||
85 | |||
86 | allx = nan*ones(1, 40*K+(K-1)) ; | ||
87 | ally = nan*ones(1, 40*K+(K-1)) ; | ||
88 | |||
89 | allxf = nan*ones(1, 3*K) ; | ||
90 | allyf = nan*ones(1, 3*K) ; | ||
91 | |||
92 | putlabel=0 ; | ||
93 | |||
94 | for k=1:K | ||
95 | xc=frames(1,k) ; | ||
96 | yc=frames(2,k) ; | ||
97 | r=1.5*4*frames(3,k) ; | ||
98 | th=frames(4,k) ; | ||
99 | |||
100 | x = r*cos(thr) + xc ; | ||
101 | y = r*sin(thr) + yc ; | ||
102 | |||
103 | allx((k-1)*(41) + (1:40)) = x ; | ||
104 | ally((k-1)*(41) + (1:40)) = y ; | ||
105 | |||
106 | allxf((k-1)*3 + (1:2)) = [xc xc+r*cos(th)] ; | ||
107 | allyf((k-1)*3 + (1:2)) = [yc yc+r*sin(th)] ; | ||
108 | |||
109 | if putlabel | ||
110 | x=xc+r ; | ||
111 | y=yc ; | ||
112 | h=text(x+2,y,sprintf('%d',labels(k))) ; | ||
113 | set(h,'Color',[1 0 0]) ; | ||
114 | plot(x,y,'r.') ; | ||
115 | end | ||
116 | |||
117 | end | ||
118 | |||
119 | h=line([allx nan allxf], [ally nan allyf], 'Color','g','LineWidth',3) ; | ||