Help me with my kinect

I have a kinect Xbox360 and I am trying to use its depth matrix for avoiding obstacles in matlab, I have ran a code but it takes 3 seconds to imply, that's too much for my application, can anybody help me with that here is the code:

I just want to have the minimum distance

clc
clear all
imaqreset

depthVid=videoinput('kinect',2);% kinect recognition

triggerconfig(depthVid,'manual'); % choosing manual setting
depthVid.FramesPerTrigger=1; %frames per each run 
depthVid.TriggerRepeat=inf; % maximum of runs we can get from the kinect

start(depthVid);

min=10^3;% initial arbitarary value for finding minimum distance

for i=1:100
    trigger(depthVid);
    [depthMap,~,depthMetaData]=getdata(depthVid); % getting data from kinect

% filtering the  floor and min choosing
for i=1:480
for j=1:640

    if i>320
  depthMap(i,j)=0;

    else if depthMap(i,j) ~= 0 && (depthMap(i,j)<min)
  min=depthMap(i,j);

      end
  end    
  end
  end
     imshow(depthMap,[0 4096]);
  min; 

end
 stop(depthVid);

[Rik]

I recovered the removed content from the Google cache (something which anyone can do). Editing away your question is very rude. Someone spent time reading your question, understanding your issue, figuring out the solution, and writing an answer. Now you repay that kindness by ensuring that the next person with a similar question can't benefit from this answer.

Answer 1

[Walter Roberson]

Only Kinect for Windows is supported, not Kinect for XBOX 360. Microsoft deliberately made the Kinect for XBOX data unreadable.

[bachelor student]

there is a Xbox 360 mark on it, but I can see it answer to every image processing code you have on the web, there is no difference nor in codes or application

[Walter Roberson]

https://www.mathworks.com/matlabcentral/answers/81451-can-matlab2013a-use-kinect-for-xbox-360-sensor

The answer there is from a Mathworks employee.

Kinect for XBOX 360 is not supported.

[Walter Roberson]

Your code is inefficient. There is no point (from the point of view of efficiency) of testing a condition that will not be true for a lot of the range. You should break up the "i" range at the very least.

mask = depthmap(1:320, :) ~= 0;
smallest = min(depthmap(mask));
depthmap(321:end, :) = 0;