Examples with ScaleTranslate2D boofcv.struct.sfm.ScaleTranslate2D used on opensource projects

Example 1 with ScaleTranslate2D

use of boofcv.struct.sfm.ScaleTranslate2D in project BoofCV by lessthanoptimal.

the class TldAdjustRegion method process.

/**
 * Adjusts target rectangle using track information
 *
 * @param pairs List of feature location in previous and current frame.
 * @param targetRectangle (Input) current location of rectangle.  (output) adjusted location
 * @return true if successful
 */
public boolean process(FastQueue<AssociatedPair> pairs, Rectangle2D_F64 targetRectangle) {
    // estimate how the rectangle has changed and update it
    if (!estimateMotion.process(pairs.toList()))
        return false;
    ScaleTranslate2D motion = estimateMotion.getModelParameters();
    adjustRectangle(targetRectangle, motion);
    if (targetRectangle.p0.x < 0 || targetRectangle.p0.y < 0)
        return false;
    if (targetRectangle.p1.x >= imageWidth || targetRectangle.p1.y >= imageHeight)
        return false;
    return true;
}

Example 2 with ScaleTranslate2D

use of boofcv.struct.sfm.ScaleTranslate2D in project BoofCV by lessthanoptimal.

the class TestTldAdjustRegion method process.

@Test
public void process() {
    ScaleTranslate2D motion = new ScaleTranslate2D(1.5, 2, 3);
    FastQueue<AssociatedPair> pairs = new FastQueue<>(AssociatedPair.class, true);
    for (int i = 0; i < 200; i++) {
        AssociatedPair p = pairs.grow();
        p.p1.x = rand.nextGaussian() * 2;
        p.p1.y = rand.nextGaussian() * 2;
        p.p2.x = p.p1.x * motion.scale + motion.transX;
        p.p2.y = p.p1.y * motion.scale + motion.transY;
    }
    Rectangle2D_F64 rect = new Rectangle2D_F64(10, 20, 30, 40);
    TldAdjustRegion alg = new TldAdjustRegion(30);
    alg.init(300, 400);
    assertTrue(alg.process(pairs, rect));
    assertEquals(17, rect.p0.x, 1e-8);
    assertEquals(33, rect.p0.y, 1e-8);
    assertEquals(47, rect.p1.x, 1e-8);
    assertEquals(63, rect.p1.y, 1e-8);
}

Example 3 with ScaleTranslate2D

use of boofcv.struct.sfm.ScaleTranslate2D in project BoofCV by lessthanoptimal.

the class TestDistanceScaleTranslate2DSq method multiple.

@Test
public void multiple() {
    ScaleTranslate2D model = new ScaleTranslate2D(1.5, -2, 3);
    AssociatedPair a = apply(-5, 4, model);
    a.p2.x += 3.5;
    AssociatedPair b = apply(2.15, 2, model);
    List<AssociatedPair> obs = new ArrayList<>();
    obs.add(a);
    obs.add(b);
    DistanceScaleTranslate2DSq alg = new DistanceScaleTranslate2DSq();
    alg.setModel(model);
    double[] found = new double[2];
    alg.computeDistance(obs, found);
    assertEquals(3.5 * 3.5, found[0], 1e-8);
    assertEquals(0, found[1], 1e-8);
}

Example 4 with ScaleTranslate2D

use of boofcv.struct.sfm.ScaleTranslate2D in project BoofCV by lessthanoptimal.

the class TestGenerateScaleTranslate2D method pathological_noscale.

/**
 * Both points are at 0,0.  Scale can't be resolved
 */
@Test
public void pathological_noscale() {
    ScaleTranslate2D model = new ScaleTranslate2D(1.5, -2, 3);
    AssociatedPair a = TestDistanceScaleTranslate2DSq.apply(0, 0, model);
    AssociatedPair b = TestDistanceScaleTranslate2DSq.apply(0, 0, model);
    List<AssociatedPair> obs = new ArrayList<>();
    obs.add(a);
    obs.add(b);
    ScaleTranslate2D found = new ScaleTranslate2D();
    GenerateScaleTranslate2D alg = new GenerateScaleTranslate2D();
    assertFalse(alg.generate(obs, found));
}

Example 5 with ScaleTranslate2D

use of boofcv.struct.sfm.ScaleTranslate2D in project BoofCV by lessthanoptimal.

the class TestGenerateScaleTranslate2D method perfect.

@Test
public void perfect() {
    ScaleTranslate2D model = new ScaleTranslate2D(1.5, -2, 3);
    AssociatedPair a = TestDistanceScaleTranslate2DSq.apply(-5, 4, model);
    AssociatedPair b = TestDistanceScaleTranslate2DSq.apply(2, 3, model);
    List<AssociatedPair> obs = new ArrayList<>();
    obs.add(a);
    obs.add(b);
    ScaleTranslate2D found = new ScaleTranslate2D();
    GenerateScaleTranslate2D alg = new GenerateScaleTranslate2D();
    assertTrue(alg.generate(obs, found));
    assertEquals(model.transX, found.transX, 1e-8);
    assertEquals(model.transY, found.transY, 1e-8);
    assertEquals(model.scale, found.scale, 1e-8);
}