姿态识别
姿态识别以开源的方式提供，将类库和文件，拷贝到工程中，如下图所示，类库下载地址：https://pan.baidu.com/s/1IQ_GPdBR8ALtQhJPDYgCrw，提取码：losl。
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| 图：“姿态识别“添加类库示意 |
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| 图：“姿态识别“添加代码文件示意 |
在Camera2BasicFragment.kt文件的classifyFrame()方法中，通过classifier!!.classifyFrame()获取识别的姿态，并根据姿态进行应用，如地图操作。下方是根据识别的姿态进行地图缩放和平移操作的示例代码。
private fun classifyFrame() {
if (classifier == null || activity == null || cameraDevice == null) {
return;
}
val bitmap = textureView!!.getBitmap(classifier!!.imageSizeX, classifier!!.imageSizeY)
val textToShow = classifier!!.classifyFrame(bitmap)
bitmap.recycle()
drawView!!.setDrawPoint(classifier!!.mPrintPointArray!!, 0.5f)
if(currentTime == 0L || lastTime == 0L)
{
currentTime = System.currentTimeMillis()
lastTime = currentTime
return
}
if (operMode == 0)
{
currentTime = System.currentTimeMillis();
if (currentTime-lastTime>1000)
{
var minusTmp:Float = classifier!!.mPrintPointArray!![0][7]-classifier!!.mPrintPointArray!![0][4]
if (minusTmp!=0.0f) {
if (minusTmp > 50) {
m_mapControl.map.zoom(1.1)
m_mapControl.map.refresh()
}
if (minusTmp < 20) {
m_mapControl.map.zoom(0.9)
m_mapControl.map.refresh()
}
}
lastTime = currentTime;
}
}
if(operMode == 1)
{
var leftX = classifier!!.mPrintPointArray!![0][4]
var leftY = classifier!!.mPrintPointArray!![1][4]
if (lastLeftPointX2D == null) {
lastLeftPointX2D = PointF(leftX, leftY);
} else {
//左手控制左移和上移
val absLeftDifx: Float = Math.abs(leftX - lastLeftPointX2D!!.x)
val absLeftDify: Float = Math.abs(leftY - lastLeftPointX2D!!.y)
var ptLeftCenter = m_mapControl?.map?.center
var ptNewLeftCenter: Point2D = Point2D(ptLeftCenter)
if (absLeftDifx>10||absLeftDify>10)
{
lastLeftPointX2D = PointF(leftX, leftY);
return
}
if (absLeftDifx > threahold) {
if (leftX > lastLeftPointX2D!!.x) {
ptNewLeftCenter.setX(ptLeftCenter!!.x - absLeftDifx * 5000)
} else {
ptNewLeftCenter.setX(ptLeftCenter!!.x + absLeftDifx * 5000)
}
}
if (absLeftDify > threahold) {
if (leftY > lastLeftPointX2D!!.y) {
ptNewLeftCenter.setY(ptLeftCenter!!.y + absLeftDify * 5000)
} else {
ptNewLeftCenter.setY(ptLeftCenter!!.y - absLeftDify * 5000)
}
}
if (absLeftDifx > threahold || absLeftDify > threahold) {
m_mapControl?.map?.setCenter(ptNewLeftCenter)
m_mapControl?.map?.refresh()
lastLeftPointX2D = PointF(leftX, leftY);
}
}
}
}在DrawView.kt文件中，定义了点与身体部位的对应关系，可以根据需要设置点的颜色。
private val mColorArray = intArrayOf(
resources.getColor(R.color.color_top, null),
resources.getColor(R.color.color_neck, null),
resources.getColor(R.color.color_l_shoulder, null),
resources.getColor(R.color.color_l_elbow, null),
resources.getColor(R.color.color_l_wrist, null),
resources.getColor(R.color.color_r_shoulder, null),
resources.getColor(R.color.color_r_elbow, null),
resources.getColor(R.color.color_r_wrist, null),
resources.getColor(R.color.color_l_hip, null),
resources.getColor(R.color.color_l_knee, null),
resources.getColor(R.color.color_l_ankle, null),
resources.getColor(R.color.color_r_hip, null),
resources.getColor(R.color.color_r_knee, null),
resources.getColor(R.color.color_r_ankle, null),
resources.getColor(R.color.color_background, null)
) |
| 图：姿态识别 |
以上示例代码下载地址：https://pan.baidu.com/s/1IQ_GPdBR8ALtQhJPDYgCrw，提取码：losl。