Examples with ErrorStatistic mpicbg.models.ErrorStatistic used on opensource projects

Example 1 with ErrorStatistic

use of mpicbg.models.ErrorStatistic in project TrakEM2 by trakem2.

the class StitchingTEM method optimizeTileConfiguration.

/**
 * Optimize tile configuration by removing bad matches
 *
 * @param tiles complete list of tiles
 * @param fixed_tiles list of fixed tiles
 * @param param phase correlation parameters
 */
public static void optimizeTileConfiguration(final ArrayList<AbstractAffineTile2D<?>> tiles, final ArrayList<AbstractAffineTile2D<?>> fixed_tiles, final PhaseCorrelationParam param) {
    // Run optimization
    if (fixed_tiles.isEmpty())
        fixed_tiles.add(tiles.get(0));
    // with default parameters
    boolean proceed = true;
    while (proceed) {
        Align.optimizeTileConfiguration(new Align.ParamOptimize(), tiles, fixed_tiles);
        /* get all transfer errors */
        final ErrorStatistic e = new ErrorStatistic(tiles.size() + 1);
        for (final AbstractAffineTile2D<?> t : tiles) t.update();
        for (final AbstractAffineTile2D<?> t : tiles) {
            for (final PointMatch p : t.getMatches()) {
                e.add(p.getDistance());
            }
        }
        /* remove the worst if there is one */
        if (e.max > param.mean_factor * e.mean) {
            A: for (final AbstractAffineTile2D<?> t : tiles) {
                for (final PointMatch p : t.getMatches()) {
                    if (p.getDistance() >= e.max) {
                        final Tile<?> o = t.findConnectedTile(p);
                        t.removeConnectedTile(o);
                        o.removeConnectedTile(t);
                        // Utils.log2( "Removing bad match from configuration, error = " + e.max );
                        break A;
                    }
                }
            }
        } else
            proceed = false;
    }
}

Example 2 with ErrorStatistic

use of mpicbg.models.ErrorStatistic in project TrakEM2 by trakem2.

the class ElasticMontage method exec.

@SuppressWarnings("deprecation")
public final void exec(final Param param, final List<Patch> patches, final Set<Patch> fixedPatches) throws Exception {
    /* free memory */
    patches.get(0).getProject().getLoader().releaseAll();
    /* create tiles and models for all patches */
    final ArrayList<AbstractAffineTile2D<?>> tiles = new ArrayList<AbstractAffineTile2D<?>>();
    final ArrayList<AbstractAffineTile2D<?>> fixedTiles = new ArrayList<AbstractAffineTile2D<?>>();
    Align.tilesFromPatches(param.po, patches, fixedPatches, tiles, fixedTiles);
    if (!param.isAligned) {
        Align.alignTiles(param.po, tiles, fixedTiles, param.tilesAreInPlace, param.maxNumThreads);
        /* Apply the estimated affine transform to patches */
        for (final AbstractAffineTile2D<?> t : tiles) t.getPatch().setAffineTransform(t.createAffine());
        Display.update();
    }
    /* generate tile pairs for all by now overlapping tiles */
    final ArrayList<AbstractAffineTile2D<?>[]> tilePairs = new ArrayList<AbstractAffineTile2D<?>[]>();
    AbstractAffineTile2D.pairOverlappingTiles(tiles, tilePairs);
    /* check if there was any pair */
    if (tilePairs.size() == 0) {
        Utils.log("Elastic montage could not find any overlapping patches after pre-montaging.");
        return;
    }
    Utils.log(tilePairs.size() + " pairs of patches will be block-matched...");
    /* make pairwise global models local */
    final ArrayList<Triple<AbstractAffineTile2D<?>, AbstractAffineTile2D<?>, InvertibleCoordinateTransform>> pairs = new ArrayList<Triple<AbstractAffineTile2D<?>, AbstractAffineTile2D<?>, InvertibleCoordinateTransform>>();
    /*
		 * The following casting madness is necessary to get this code compiled
		 * with Sun/Oracle Java 6 which otherwise generates an inconvertible
		 * type exception.
		 *
		 * TODO Remove as soon as this bug is fixed in Sun/Oracle javac.
		 */
    for (final AbstractAffineTile2D<?>[] pair : tilePairs) {
        final AbstractAffineModel2D<?> m;
        switch(param.po.desiredModelIndex) {
            case 0:
                final TranslationModel2D t = (TranslationModel2D) (Object) pair[1].getModel().createInverse();
                t.concatenate((TranslationModel2D) (Object) pair[0].getModel());
                m = t;
                break;
            case 1:
                final RigidModel2D r = (RigidModel2D) (Object) pair[1].getModel().createInverse();
                r.concatenate((RigidModel2D) (Object) pair[0].getModel());
                m = r;
                break;
            case 2:
                final SimilarityModel2D s = (SimilarityModel2D) (Object) pair[1].getModel().createInverse();
                s.concatenate((SimilarityModel2D) (Object) pair[0].getModel());
                m = s;
                break;
            case 3:
                final AffineModel2D a = (AffineModel2D) (Object) pair[1].getModel().createInverse();
                a.concatenate((AffineModel2D) (Object) pair[0].getModel());
                m = a;
                break;
            default:
                m = null;
        }
        pairs.add(new Triple<AbstractAffineTile2D<?>, AbstractAffineTile2D<?>, InvertibleCoordinateTransform>(pair[0], pair[1], m));
    }
    /* Elastic alignment */
    /* Initialization */
    final double springTriangleHeightTwice = 2 * Math.sqrt(0.75 * param.springLengthSpringMesh * param.springLengthSpringMesh);
    final ArrayList<SpringMesh> meshes = new ArrayList<SpringMesh>(tiles.size());
    final HashMap<AbstractAffineTile2D<?>, SpringMesh> tileMeshMap = new HashMap<AbstractAffineTile2D<?>, SpringMesh>();
    for (final AbstractAffineTile2D<?> tile : tiles) {
        final double w = tile.getWidth();
        final double h = tile.getHeight();
        final int numX = Math.max(2, (int) Math.ceil(w / param.springLengthSpringMesh) + 1);
        final int numY = Math.max(2, (int) Math.ceil(h / springTriangleHeightTwice) + 1);
        final double wMesh = (numX - 1) * param.springLengthSpringMesh;
        final double hMesh = (numY - 1) * springTriangleHeightTwice;
        final SpringMesh mesh = new SpringMesh(numX, numY, wMesh, hMesh, param.stiffnessSpringMesh, param.maxStretchSpringMesh * param.bmScale, param.dampSpringMesh);
        meshes.add(mesh);
        tileMeshMap.put(tile, mesh);
    }
    // final int blockRadius = Math.max( 32, Util.roundPos( param.springLengthSpringMesh / 2 ) );
    final int blockRadius = Math.max(Util.roundPos(16 / param.bmScale), param.bmBlockRadius);
    /**
     * TODO set this something more than the largest error by the approximate model
     */
    final int searchRadius = param.bmSearchRadius;
    final AbstractModel<?> localSmoothnessFilterModel = mpicbg.trakem2.align.Util.createModel(param.bmLocalModelIndex);
    for (final Triple<AbstractAffineTile2D<?>, AbstractAffineTile2D<?>, InvertibleCoordinateTransform> pair : pairs) {
        final AbstractAffineTile2D<?> t1 = pair.a;
        final AbstractAffineTile2D<?> t2 = pair.b;
        final SpringMesh m1 = tileMeshMap.get(t1);
        final SpringMesh m2 = tileMeshMap.get(t2);
        final ArrayList<PointMatch> pm12 = new ArrayList<PointMatch>();
        final ArrayList<PointMatch> pm21 = new ArrayList<PointMatch>();
        final ArrayList<Vertex> v1 = m1.getVertices();
        final ArrayList<Vertex> v2 = m2.getVertices();
        final String patchName1 = patchName(t1.getPatch());
        final String patchName2 = patchName(t2.getPatch());
        final PatchImage pi1 = t1.getPatch().createTransformedImage();
        if (pi1 == null) {
            Utils.log("Patch `" + patchName1 + "' failed generating a transformed image.  Skipping...");
            continue;
        }
        final PatchImage pi2 = t2.getPatch().createTransformedImage();
        if (pi2 == null) {
            Utils.log("Patch `" + patchName2 + "' failed generating a transformed image.  Skipping...");
            continue;
        }
        final FloatProcessor fp1 = (FloatProcessor) pi1.target.convertToFloat();
        final ByteProcessor mask1 = pi1.getMask();
        final FloatProcessor fpMask1 = mask1 == null ? null : scaleByte(mask1);
        final FloatProcessor fp2 = (FloatProcessor) pi2.target.convertToFloat();
        final ByteProcessor mask2 = pi2.getMask();
        final FloatProcessor fpMask2 = mask2 == null ? null : scaleByte(mask2);
        if (!fixedTiles.contains(t1)) {
            BlockMatching.matchByMaximalPMCC(fp1, fp2, fpMask1, fpMask2, param.bmScale, pair.c, blockRadius, blockRadius, searchRadius, searchRadius, param.bmMinR, param.bmRodR, param.bmMaxCurvatureR, v1, pm12, new ErrorStatistic(1));
            if (param.bmUseLocalSmoothnessFilter) {
                Utils.log("`" + patchName1 + "' > `" + patchName2 + "': found " + pm12.size() + " correspondence candidates.");
                localSmoothnessFilterModel.localSmoothnessFilter(pm12, pm12, param.bmLocalRegionSigma, param.bmMaxLocalEpsilon, param.bmMaxLocalTrust);
                Utils.log("`" + patchName1 + "' > `" + patchName2 + "': " + pm12.size() + " candidates passed local smoothness filter.");
            } else {
                Utils.log("`" + patchName1 + "' > `" + patchName2 + "': found " + pm12.size() + " correspondences.");
            }
        } else {
            Utils.log("Skipping fixed patch `" + patchName1 + "'.");
        }
        if (!fixedTiles.contains(t2)) {
            BlockMatching.matchByMaximalPMCC(fp2, fp1, fpMask2, fpMask1, param.bmScale, pair.c.createInverse(), blockRadius, blockRadius, searchRadius, searchRadius, param.bmMinR, param.bmRodR, param.bmMaxCurvatureR, v2, pm21, new ErrorStatistic(1));
            if (param.bmUseLocalSmoothnessFilter) {
                Utils.log("`" + patchName1 + "' < `" + patchName2 + "': found " + pm21.size() + " correspondence candidates.");
                localSmoothnessFilterModel.localSmoothnessFilter(pm21, pm21, param.bmLocalRegionSigma, param.bmMaxLocalEpsilon, param.bmMaxLocalTrust);
                Utils.log("`" + patchName1 + "' < `" + patchName2 + "': " + pm21.size() + " candidates passed local smoothness filter.");
            } else {
                Utils.log("`" + patchName1 + "' < `" + patchName2 + "': found " + pm21.size() + " correspondences.");
            }
        } else {
            Utils.log("Skipping fixed patch `" + patchName2 + "'.");
        }
        for (final PointMatch pm : pm12) {
            final Vertex p1 = (Vertex) pm.getP1();
            final Vertex p2 = new Vertex(pm.getP2());
            p1.addSpring(p2, new Spring(0, 1.0f));
            m2.addPassiveVertex(p2);
        }
        for (final PointMatch pm : pm21) {
            final Vertex p1 = (Vertex) pm.getP1();
            final Vertex p2 = new Vertex(pm.getP2());
            p1.addSpring(p2, new Spring(0, 1.0f));
            m1.addPassiveVertex(p2);
        }
    }
    /* initialize */
    for (final Map.Entry<AbstractAffineTile2D<?>, SpringMesh> entry : tileMeshMap.entrySet()) entry.getValue().init(entry.getKey().getModel());
    /* optimize the meshes */
    try {
        final long t0 = System.currentTimeMillis();
        IJ.log("Optimizing spring meshes...");
        if (param.useLegacyOptimizer) {
            Utils.log("  ...using legacy optimizer...");
            SpringMesh.optimizeMeshes2(meshes, param.po.maxEpsilon, param.maxIterationsSpringMesh, param.maxPlateauwidthSpringMesh, param.visualize);
        } else {
            SpringMesh.optimizeMeshes(meshes, param.po.maxEpsilon, param.maxIterationsSpringMesh, param.maxPlateauwidthSpringMesh, param.visualize);
        }
        IJ.log("Done optimizing spring meshes. Took " + (System.currentTimeMillis() - t0) + " ms");
    } catch (final NotEnoughDataPointsException e) {
        Utils.log("There were not enough data points to get the spring mesh optimizing.");
        e.printStackTrace();
        return;
    }
    /* apply */
    for (final Map.Entry<AbstractAffineTile2D<?>, SpringMesh> entry : tileMeshMap.entrySet()) {
        final AbstractAffineTile2D<?> tile = entry.getKey();
        if (!fixedTiles.contains(tile)) {
            final Patch patch = tile.getPatch();
            final SpringMesh mesh = entry.getValue();
            final Set<PointMatch> matches = mesh.getVA().keySet();
            Rectangle box = patch.getCoordinateTransformBoundingBox();
            /* compensate for existing coordinate transform bounding box */
            for (final PointMatch pm : matches) {
                final Point p1 = pm.getP1();
                final double[] l = p1.getL();
                l[0] += box.x;
                l[1] += box.y;
            }
            final ThinPlateSplineTransform mlt = ElasticLayerAlignment.makeTPS(matches);
            patch.appendCoordinateTransform(mlt);
            box = patch.getCoordinateTransformBoundingBox();
            patch.getAffineTransform().setToTranslation(box.x, box.y);
            patch.updateInDatabase("transform");
            patch.updateBucket();
            patch.updateMipMaps();
        }
    }
    Utils.log("Done.");
}

Example 3 with ErrorStatistic

use of mpicbg.models.ErrorStatistic in project TrakEM2 by trakem2.

the class BlockMatchPairCallable method call.

@Override
public BlockMatchResults call() throws Exception {
    final ArrayList<PointMatch> pm12 = new ArrayList<PointMatch>();
    final ArrayList<PointMatch> pm21 = new ArrayList<PointMatch>();
    System.out.println("BMC rev 0: " + pair.a + " " + pair.b);
    final Pair<FloatProcessor, FloatProcessor> pair1 = makeFlatImage(layer1, AlignmentUtils.filterPatches(layer1, filter), box, param.layerScale);
    final Pair<FloatProcessor, FloatProcessor> pair2 = makeFlatImage(layer2, AlignmentUtils.filterPatches(layer2, filter), box, param.layerScale);
    final FloatProcessor ip1 = pair1.a;
    final FloatProcessor ip1Mask = pair1.b;
    final FloatProcessor ip2 = pair2.a;
    final FloatProcessor ip2Mask = pair2.b;
    final AbstractModel<?> localSmoothnessFilterModel = Util.createModel(param.localModelIndex);
    final int blockRadius = Math.max(16, mpicbg.util.Util.roundPos(param.layerScale * param.blockRadius));
    /* scale pixel distances */
    final int searchRadius = (int) Math.round(param.layerScale * param.searchRadius);
    final double localRegionSigma = param.layerScale * param.localRegionSigma;
    final double maxLocalEpsilon = param.layerScale * param.maxLocalEpsilon;
    if (!layer1Fixed) {
        BlockMatching.matchByMaximalPMCC(ip1, ip2, ip1Mask, ip2Mask, 1.0, ((InvertibleCoordinateTransform) pair.c).createInverse(), blockRadius, blockRadius, searchRadius, searchRadius, param.minR, param.rodR, param.maxCurvatureR, v1, pm12, new ErrorStatistic(1));
        if (Thread.interrupted()) {
            throw new InterruptedException("Block matching interrupted.");
        }
        if (param.useLocalSmoothnessFilter) {
            localSmoothnessFilterModel.localSmoothnessFilter(pm12, pm12, localRegionSigma, maxLocalEpsilon, param.maxLocalTrust);
        }
    }
    if (!layer2Fixed) {
        BlockMatching.matchByMaximalPMCC(ip2, ip1, ip2Mask, ip1Mask, 1.0f, pair.c, blockRadius, blockRadius, searchRadius, searchRadius, param.minR, param.rodR, param.maxCurvatureR, v2, pm21, new ErrorStatistic(1));
        if (Thread.interrupted()) {
            throw new InterruptedException("Block matching interrupted.");
        }
        if (param.useLocalSmoothnessFilter) {
            localSmoothnessFilterModel.localSmoothnessFilter(pm21, pm21, localRegionSigma, maxLocalEpsilon, param.maxLocalTrust);
        }
    }
    return new BlockMatchResults(v1, v2, pm12, pm21, layer1Fixed, layer2Fixed, pair);
}