OpenNi user tracking PLEAS HELP :(

ikillbombs

OpenNi user tracking PLEAS HELP :(

in Contributed Library Questions • 1 year ago

Hi, i'm trying the SimpleOpenni library right now. I already tried the same thing in Open Frameworks, but after a while it just stops detecting users. What can i do to fix this? Can i somehow reset it?

I'm standing here waiting it to work correctly. Sometimes the point just hangs. Sometimes it sends a 0 value thru oscP5.

I'm using this example: http://simple-openni.googlecode.com/svn-history/r211/trunk/SimpleOpenNI/dist/all/SimpleOpenNI/examples/SimpleOpenNI_UserScene3d/SimpleOpenNI_UserScene3d.pde

Here's my code:

void setup()
{
size(1024,768,P3D); // strange, get drawing error in the cameraFrustum if i use P3D, in opengl there is no problem
context = new SimpleOpenNI(this);
// disable mirror
context.setMirror(false);
// enable depthMap generation
context.enableDepth();
// enable skeleton generation for all joints
context.enableUser(SimpleOpenNI.SKEL_PROFILE_ALL);
// enable the scene, to get the floor
context.enableScene();
stroke(255,255,255);
smooth();
perspective(radians(45),
float(width)/float(height),
10,150000);
/* start oscP5, listening for incoming messages at port 12000 */
oscP5 = new OscP5("127.0.0.1", 12001);
/* myRemoteLocation is a NetAddress. a NetAddress takes 2 parameters,
* an ip address and a port number. myRemoteLocation is used as parameter in
* oscP5.send() when sending osc packets to another computer, device,
* application. usage see below. for testing purposes the listening port
* and the port of the remote location address are the same, hence you will
* send messages back to this sketch.
*/
myRemoteLocation = new NetAddress("127.0.0.1", 12000);
}
void draw()
{
// update the cam
context.update();
background(0,0,0);
// set the scene pos
translate(width/2, height/2, 0);
rotateX(rotX);
rotateY(rotY);
scale(zoomF);
int[] depthMap = context.depthMap();
int steps = 3; // to speed up the drawing, draw every third point
int index;
PVector realWorldPoint;
translate(0,0,-1000); // set the rotation center of the scene 1000 infront of the camera
int userCount = context.getNumberOfUsers();
int[] userMap = null;
if(userCount > 0)
{
userMap = context.getUsersPixels(SimpleOpenNI.USERS_ALL);
}
for(int y=0;y < context.depthHeight();y+=steps)
{
for(int x=0;x < context.depthWidth();x+=steps)
{
index = x + y * context.depthWidth();
if(depthMap[index] > 0)
{
// get the realworld points
realWorldPoint = context.depthMapRealWorld()[index];
if(realWorldPoint.z <900){
// check if there is a user
if(userMap != null && userMap[index] != 0)
{ // calc the user color
int colorIndex = userMap[index] % userColors.length;
stroke(userColors[colorIndex]);
}
// else
// default color
// stroke(100);
// pushMatrix();
// translate(realWorldPoint.x,realWorldPoint.y,realWorldPoint.z);
// fill(0,0,255);
// stroke(0,0,255);
// ellipse(0,0,50,50);
// popMatrix();
// point(realWorldPoint.x,realWorldPoint.y,realWorldPoint.z);
}}
}
}
// draw the center of mass
PVector pos = new PVector();
pushStyle();
strokeWeight(15);
for(int userId=1;userId <= userCount;userId++)
{
context.getCoM(userId,pos);
stroke(userCoMColors[userId % userCoMColors.length]);
/* create a new OscMessage with an address pattern, in this case /test. */
OscMessage myOscMessage = new OscMessage("/persons");
if(pos.z <3000){
myOscMessage.add(userId);
println(pos.x);
/* add a value (an integer) to the OscMessage */
myOscMessage.add(int(pos.x));
/* send the OscMessage to a remote location specified in myNetAddress */
oscP5.send(myOscMessage, myRemoteLocation);
println(pos.z);
pushMatrix();
translate(pos.x,pos.y,pos.z);
fill(0,255,0);
stroke(0,255,0);
ellipse(0,0,50,50);
popMatrix();
// println("userID : "+userId);
// println("userposition : "+pos.x);
// point(pos.x,pos.y,pos.z);
}}
popStyle();
/*
// draw the floor
PVector floorCenter = new PVector();
PVector floorNormal = new PVector();
PVector floorEnd = new PVector();
context.getSceneFloor(floorCenter,floorNormal);
floorEnd = PVector.add(floorCenter,PVector.mult(floorNormal,1000));
println(floorCenter + " - " + floorEnd);
pushStyle();
strokeWeight(8);
stroke(0,255,255);
line(floorCenter.x,floorCenter.y,floorCenter.z,
floorEnd.x,floorEnd.y,floorEnd.z);
stroke(0,255,100);
line(floorEnd.x,floorEnd.y,floorEnd.z,
0,0,0);
popStyle();
*/
// draw the kinect cam
context.drawCamFrustum();
}

and how i receive it:

void OSCSETUP() {
/* start oscP5, listening for incoming messages at port 12000 */
oscP5 = new OscP5(this,12000);
/* myRemoteLocation is a NetAddress. a NetAddress takes 2 parameters,
* an ip address and a port number. myRemoteLocation is used as parameter in
* oscP5.send() when sending osc packets to another computer, device,
* application. usage see below. for testing purposes the listening port
* and the port of the remote location address are the same, hence you will
* send messages back to this sketch.
*/
myRemoteLocation = new NetAddress("127.0.0.1",12001);
}
int[] userDetection = new int[10];
/* incoming osc message are forwarded to the oscEvent method. */
void oscEvent(OscMessage theOscMessage) {
/* print the address pattern and the typetag of the received OscMessage */
print("### received an osc message.");
print(" addrpattern: "+theOscMessage.addrPattern());
println(" typetag: "+theOscMessage.typetag());
if (theOscMessage.checkAddrPattern("/amount")==true) {
int userValue = theOscMessage.get(0).intValue();
userDetection = new int[userValue];
}
if (theOscMessage.checkAddrPattern("/persons")==true) {
int userValue = theOscMessage.get(0).intValue();
println("hoeveelheid: " + userValue);
println("variabel: " + theOscMessage.get(1).intValue());
userDetection[userValue] = theOscMessage.get(1).intValue();
}
}

It's unpredictable when it stops. If somehow i just can reset it once every few minutes. That's enough.

Replies(1)

pagapags

Re: OpenNi user tracking PLEAS HELP :(

1 year ago

hello
i have the same problem did you resolved it
thanks

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