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Diffstat (limited to 'SD-VBS/benchmarks/sift/src/matlab/siftmatch.m')
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| 1 | % SIFTMATCH Match SIFT features | ||
| 2 | % MATCHES=SIFTMATCH(DESCR1, DESCR2) matches the two sets of SIFT | ||
| 3 | % descriptors DESCR1 and DESCR2. | ||
| 4 | % | ||
| 5 | % The function uses the same algorithm suggested by D. Lowe [1] to | ||
| 6 | % reject matches that are too ambiguous. | ||
| 7 | % | ||
| 8 | % SIFTMATCH(DESCR1, DESCR2, THRESH) uses [1] with the specified | ||
| 9 | % threshold THRESH. A descriptor D1 is matched to a descriptor D2 | ||
| 10 | % only if the distance d(D1,D2) multiplied by THRESH is not greather | ||
| 11 | % than the distance of D1 to all other descriptors. The default | ||
| 12 | % value of THRESH is 1.5. | ||
| 13 | % | ||
| 14 | % The storage class of the descriptors can be either DOUBLE, FLOAT, | ||
| 15 | % INT8 or UINT8. Usually interger classes are faster. | ||
| 16 | % | ||
| 17 | % [1] D. G. Lowe, | ||
| 18 | % `Distinctive image features from scale-invariant keypoints,' | ||
| 19 | % IJCV, vol. 2, no. 60, pp. 91–110, 2004. | ||
| 20 | % | ||
| 21 | % See also SIFT(), SIFTDESCRIPTOR(). | ||
| 22 | |||
| 23 | % AUTORIGHTS | ||
| 24 | % Copyright (c) 2006 The Regents of the University of California. | ||
| 25 | % All Rights Reserved. | ||
| 26 | % | ||
| 27 | % Created by Andrea Vedaldi | ||
| 28 | % UCLA Vision Lab - Department of Computer Science | ||
| 29 | % | ||
| 30 | % Permission to use, copy, modify, and distribute this software and its | ||
| 31 | % documentation for educational, research and non-profit purposes, | ||
| 32 | % without fee, and without a written agreement is hereby granted, | ||
| 33 | % provided that the above copyright notice, this paragraph and the | ||
| 34 | % following three paragraphs appear in all copies. | ||
| 35 | % | ||
| 36 | % This software program and documentation are copyrighted by The Regents | ||
| 37 | % of the University of California. The software program and | ||
| 38 | % documentation are supplied "as is", without any accompanying services | ||
| 39 | % from The Regents. The Regents does not warrant that the operation of | ||
| 40 | % the program will be uninterrupted or error-free. The end-user | ||
| 41 | % understands that the program was developed for research purposes and | ||
| 42 | % is advised not to rely exclusively on the program for any reason. | ||
| 43 | % | ||
| 44 | % This software embodies a method for which the following patent has | ||
| 45 | % been issued: "Method and apparatus for identifying scale invariant | ||
| 46 | % features in an image and use of same for locating an object in an | ||
| 47 | % image," David G. Lowe, US Patent 6,711,293 (March 23, | ||
| 48 | % 2004). Provisional application filed March 8, 1999. Asignee: The | ||
| 49 | % University of British Columbia. | ||
| 50 | % | ||
| 51 | % IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY | ||
| 52 | % FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, | ||
| 53 | % INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND | ||
| 54 | % ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN | ||
| 55 | % ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. THE UNIVERSITY OF | ||
| 56 | % CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT | ||
| 57 | % LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
| 58 | % A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" | ||
| 59 | % BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE | ||
| 60 | % MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. | ||