Sensor issue

[Solony]

Hi, I found your work and it looks great.
I'm actually developing my own geolocational AR app.
I'm using sensors in my HTC A9.
Everything is done so far but my images are not steady at all.
It shakes constantly even though I've implemented low-pass filter.
Have you ever encountered such situation? How do you overcome it?

[Bhide]

Try changing the ALPHA value (currently 0.25) in the low pass filter method.

protected float[] lowPass( float[] input, float[] output ) {
    if ( output == null ) return input;
     
    for ( int i=0; i<input.length; i++ ) {
        output[i] = output[i] + ALPHA * (input[i] - output[i]);
    }
    return output;
}

[Solony]

Yes it helps.
But it's not as stable as I want.
Is it possible to achieve the stability like the video?
https://www.youtube.com/watch?v=8U3vWETmk2U
Or does it use other equipment along with built-in sensors?