FeaturePoint.java

/*
 * Copyright 2013 Alibaba.com All right reserved. This software is the
 * confidential and proprietary information of Alibaba.com ("Confidential
 * Information"). You shall not disclose such Confidential Information and shall
 * use it only in accordance with the terms of the license agreement you entered
 * into with Alibaba.com.
 */
package com.alibaba.simpleimage.analyze.sift.scale;

import com.alibaba.simpleimage.analyze.sift.ImagePixelArray;

/**
 * 类FeaturePoint.java的实现描述：TODO 类实现描述
 * 
 * @author axman 2013-7-1 上午9:46:14
 */
public class FeaturePoint {

    public float          x;
    public float          y;

    public ImagePixelArray image;                   // 特征点所在的高斯图层
    public float          imgScale;                // 找到该点的高斯图层在8度空间尺度
    public float          scale;

    public float          orientation;

    public float[]        features;
    public boolean         hasFeatures = false;

    public int xDim; 
    public int yDim;
    public int oDim;
    public FeaturePoint(){
    }

    public FeaturePoint(ImagePixelArray image, float x, float y, float imgScale, float kfScale, float orientation){
        this.image = image;
        this.x = x;
        this.y = y;
        this.imgScale = imgScale;
        this.scale = kfScale;
        this.orientation = orientation;
    }
    
    public void createVector(int xDim, int yDim, int oDim) {
        this.hasFeatures = true;
        this.xDim = xDim;// 4 dim
        this.yDim = yDim;// 4 dim
        this.oDim = oDim;// 8 dim
        features = new float[yDim * xDim * oDim];
    }
}