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BoofCV is an open source Java library for real-time computer vision and robotics applications.

There is a newer version: 1.1.7

/*
 * Copyright (c) 2021, Peter Abeles. All Rights Reserved.
 *
 * This file is part of BoofCV (http://boofcv.org).
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package boofcv.factory.geo;

import boofcv.alg.geo.selfcalib.SelfCalibrationLinearDualQuadratic;
import boofcv.misc.BoofMiscOps;
import boofcv.misc.ConfigConverge;
import boofcv.struct.Configuration;

import static boofcv.misc.BoofMiscOps.checkTrue;

/**
 * Configuration for {@link SelfCalibrationLinearDualQuadratic}. Note that the principle point is always assumed
 * to be zero. You really should read the documentation for this class.
 *
 * @author Peter Abeles
 */
public class ConfigSelfCalibDualQuadratic implements Configuration {

	/** The skew is assumed to be zero */
	public boolean zeroSkew = true;
	/** The aspect ratio is assumed to be known, e.g. fy = ratio*fx; */
	public boolean knownAspectRatio = true;
	/** The assumed aspect ratio. Only used if {@link #knownAspectRatio} is true */
	public double aspectRatio = 1.0;
	/** Maximum fraction of invalid observations it will accept before failing */
	public double invalidFractionAccept = 0.15;
	/** Performs non-linear refinement minimizing a algebraic cost function */
	public ConfigConverge refineAlgebraic = new ConfigConverge(1e-12, 1e-8, 20);

	@Override
	public void checkValidity() {
		refineAlgebraic.checkValidity();
		BoofMiscOps.checkTrue(aspectRatio > 0);
		BoofMiscOps.checkTrue(invalidFractionAccept >= 0 && invalidFractionAccept <= 1.0);
		checkTrue(knownAspectRatio && zeroSkew, "If aspect ratio is known then zero skew must be assumed");
	}

	public ConfigSelfCalibDualQuadratic setTo( ConfigSelfCalibDualQuadratic src ) {
		this.zeroSkew = src.zeroSkew;
		this.knownAspectRatio = src.knownAspectRatio;
		this.aspectRatio = src.aspectRatio;
		this.invalidFractionAccept = src.invalidFractionAccept;
		this.refineAlgebraic.setTo(src.refineAlgebraic);
		return this;
	}
}