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Show all versions of FaceTracker Show documentation
Port of Jason Mora Saragih's FaceTracker to Java using OpenIMAJ.
FaceTracker is an implementation of a facial model tracker using
a Constrained Local Model.
/**
* FaceTracker Licence
* -------------------
* (Academic, non-commercial, not-for-profit licence)
*
* Copyright (c) 2010 Jason Mora Saragih
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * The software is provided under the terms of this licence stricly for
* academic, non-commercial, not-for-profit purposes.
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions (licence) and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions (licence) and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
* * As this software depends on other libraries, the user must adhere to and
* keep in place any licencing terms of those libraries.
* * Any publications arising from the use of this software, including but
* not limited to academic journal and conference publications, technical
* reports and manuals, must cite the following work:
*
* J. M. Saragih, S. Lucey, and J. F. Cohn. Face Alignment through Subspace
* Constrained Mean-Shifts. International Journal of Computer Vision
* (ICCV), September, 2009.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jsaragih;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
import org.openimaj.image.FImage;
/**
* Multiple patches
*
* @author Jason Mora Saragih
* @author Jonathon Hare ([email protected])
*/
public class MPatch {
static { Tracker.init(); }
/** Width of patch */
public int _w;
/** Height of patch */
public int _h;
/** List of patches */
public Patch[] _p;
private FImage res_;
MPatch(Patch[] p) {
_w = p[0].matcher.getTemplate().width;
_h = p[0].matcher.getTemplate().height;
for (int i = 1; i < p.length; i++) {
if ((p[i].matcher.getTemplate().width != _w)
|| (p[i].matcher.getTemplate().height != _h)) {
throw new IllegalArgumentException(
"Patches must all have the same size");
}
}
_p = p;
res_ = new FImage(0, 0);
}
MPatch() {
}
static MPatch load(final String fname) throws FileNotFoundException {
BufferedReader br = null;
try {
br = new BufferedReader(new FileReader(fname));
Scanner sc = new Scanner(br);
return read(sc, true);
} finally {
try {
br.close();
} catch (IOException e) {
}
}
}
void save(final String fname) throws IOException {
BufferedWriter bw = null;
try {
bw = new BufferedWriter(new FileWriter(fname));
write(bw);
} finally {
try {
if (bw != null)
bw.close();
} catch (IOException e) {
}
}
}
void write(BufferedWriter s) throws IOException {
s.write(IO.Types.MPATCH.ordinal() + " " + _w + " " + _h + " "
+ _p.length + " ");
for (int i = 0; i < _p.length; i++)
_p[i].write(s);
}
static MPatch read(Scanner s, boolean readType) {
if (readType) {
int type = s.nextInt();
assert (type == IO.Types.MPATCH.ordinal());
}
MPatch mpatch = new MPatch();
mpatch._w = s.nextInt();
mpatch._h = s.nextInt();
int n = s.nextInt();
mpatch._p = new Patch[n];
for (int i = 0; i < n; i++)
mpatch._p[i] = Patch.read(s, true);
return mpatch;
}
final void sum2one(FImage M) {
M.divideInplace(M.sum());
}
void response(FImage im, FImage resp) {
assert ((im.height >= _h) && (im.width >= _w));
int h = im.height - _h + 1, w = im.width - _w + 1;
if (resp.height != h || resp.width != w)
resp.internalAssign(new FImage(w, h));
if (res_ == null)
res_ = new FImage(w, h);
if (res_.height != h || res_.width != w)
res_.internalAssign(new FImage(w, h));
if (_p.length == 1) {
_p[0].response(im, resp);
sum2one(resp);
} else {
resp.fill(1);
for (int i = 0; i < _p.length; i++) {
_p[i].response(im, res_);
sum2one(res_);
resp.multiplyInplace(res_);
}
sum2one(resp);
}
}
/**
* Returns a copy of this MPatch
*
* @return A copy of this object
*/
public MPatch copy() {
MPatch m = new MPatch();
m._w = _w;
m._h = _h;
m.res_ = res_;
m._p = new Patch[_p.length];
for (int i = 0; i < _p.length; i++)
m._p[i] = _p[i].copy();
return m;
}
}