Mercurial > hg > emotion-detection-top-level
annotate Code/Descriptors/yin/private/src/dftoperiod copy.m @ 0:ea0c737c6323
first commit
| author | Dawn Black <dawn.black@eecs.qmul.ac.uk> |
|---|---|
| date | Thu, 26 Jul 2012 14:46:25 +0100 |
| parents | |
| children |
| rev | line source |
|---|---|
| dawn@0 | 1 % prd=dftoperiod(d,b,t) - estimate period from difference function |
| dawn@0 | 2 % |
| dawn@0 | 3 % prd: row matrix of period estimates |
| dawn@0 | 4 % |
| dawn@0 | 5 % d: column vector or matrix of difference functions |
| dawn@0 | 6 % b: bounds matrix ([lo, hi]) |
| dawn@0 | 7 % t: threshold |
| dawn@0 | 8 % |
| dawn@0 | 9 % Difference functions are supposed to be cumulative-mean-normalized. |
| dawn@0 | 10 % For each column of d, search for the first minimum between lo and hi that |
| dawn@0 | 11 % falls below threshold. The index of this minimum (re 0) |
| dawn@0 | 12 % is the period estimate. |
| dawn@0 | 13 % |
| dawn@0 | 14 % Mex function. |