/// <summary>
        /// Release the memory associated with this Hausdorff distance extractor
        /// </summary>
        protected override void DisposeObject()
        {
            if (_sharedPtr != IntPtr.Zero)
            {
                ShapeInvoke.cveHausdorffDistanceExtractorRelease(ref _sharedPtr);
                _ptr = IntPtr.Zero;
            }

            base.DisposeObject();
        }