IMPROMPTU:

The IMPROMPTU module is a graphical user interface system for constructing automatic image analysis processes. IMPROMPTU draws on functions from the VIPlib.

The VIPlib is an extensive collection of engines for volumetric image processing. VIPlib was developed by William E. Higgins. For more information on IMPROMPTU, see Sundaramoorthy et al., "IMPROMPTU: A System for Automatic 3D Medical Image Analysis", Computerized Medical Imaging and Graphics, Vol 19, No. 1, 131-143, 1995. (Abstract)

NOTE:

This is a DRAFT of the IMPROMPTU function manual. This manual is still under construction. Contact weh@ruth.ece.psu.edu for more information on IMPROMPTU.

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Next: Introduction

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• Introduction
• Categories of Functions
  • Filter
    • ``Lowpass'' -- lowpass filter
    • ``Median'' -- a median filter
    • ``maximum homogeneity'' -- the maximum-homogeneity filter
    • ``Symmetric_Nearest_Neighbor'' -- symmetric nearest-neighbor mean filter
    • ``Sigma'' -- sigma filter
    • ``Average_Maximum'' -- average/maximum filter
    • ``Average_Minimum'' -- average/minimum filter
    • ``Salt_and_Pepper_Removal'' -- remove salt and pepper (spike) noise
    • ``Anisotropic_Diffusion'' -- anisotropic diffusion filter
    • ``4D_Filtering'' -- 4D mean filter and grayscale inversion
  • Morphology
    • ``Binary_Erosion'' -- binary erosion
    • ``Binary_Dilation'' -- binary dilation
    • ``Binary_Opening'' -- morphological binary opening
    • ``Binary_Closing'' -- morphological binary closing
    • ``Minimum'' -- local minimum
    • ``Maximum'' -- local maximum
    • ``Grayscale_Erosion'' -- grayscale erosion
    • ``Grayscale_Dilation'' -- gray-scale dilation
    • ``Grayscale_Opening'' -- morphological grayscale opening
    • ``Grayscale_Closing'' -- morphological grayscale closing
    • ``Ultimate_Erosion'' -- ultimate erosion
    • ``Conditional_Dilation'' -- conditional dilation
    • ``4D_Morphology'' -- 4D mathematical morphology functions
    • ``tophat transform'' -- detect peaks
  • Topology
    • ``3D_conn_comp'' -- three-dim. connected components analysis
    • ``2D_conn_comp'' -- two-dim. connected components analysis
    • ``Cavity_Deletion'' -- delete interior cavities
    • ``Homotopic_Thinning'' -- thin an input volume
    • ``Homotopic_Thickening'' -- conditional homotopic thickening
  • Segmentation
    • ``3D_Adaptive_thresholding'' -- automatically threshold a 3-D volume
    • ``Hysteresis_Threshold'' -- thresholding using hysteresis
    • ``Region_growing'' -- segment a volume using region growing
    • ``Relaxation_Labeling'' -- segment an image using relaxation labeling
    • ``nonmax suppression'' -- non-maximum suppression
    • ``Kirsch edge operator'' -- Kirsch edge operator
    • ``Sobel edge operator'' -- Sobel edge operator
    • ``diff. of Gaussians'' -- difference of Gaussians
    • ``border of binary vol'' -- find borders in a binary volume
    • ``morpholog. gradient'' -- morphological gradient
  • Manipulation
    • ``copy vol1 to vol2'' -- copy one volume into another
    • ``two-volume ops'' -- pointwise functions combining 2 volumes
    • ``threshold'' -- intensity thresholding
    • ``Gray-scale inversion'' -- Gray-scale inversion
    • ``histogram'' -- compute a histogram of a volume
    • ``3-D histogram'' -- compute a 3-D histogram
    • ``umbra'' -- compute the umbra of a volume
    • ``zero hi voxels'' -- zero out bright voxels
    • ``zero lo voxels'' -- zero out dim voxels
    • ``complement'' -- complement a volume
    • ``min.-bounding cuboid'' -- finding object bounds
    • ``add Gaussian noise'' -- add Gaussian noise to a volume
    • ``volume properties'' -- Compute various properties of a volume
    • ``3D_Shrink'' -- generate a shrunken (subsampled) version of an image
    • ``3D_Expand'' -- generate an expanded (zoomed) version of an image
    • ``Flip'' -- Flip a 3D Image
  • Measurement
    • ``two-vol. comparison'' -- find differences between two volumes
    • ``volume statistics'' -- find properties of a segmented volume
    • ``demask region'' -- identifies segmented regions within a volume
    • ``save largest region'' -- extract largest region from segmentation volume
  • Turnkey
    • ``LV Extract'' -- extract left ventricular chambers
    • ``solid-blob extract'' -- extract bright solid blobs
    • ``solid-blob test'' -- run tests on solid-blob extract
    • ``object separation'' -- separate connected objects
    • ``region isolation'' -- extract a large bright region
    • ``fill concave gaps'' -- fill concave gaps in objects
  • Input/Output
    • ``copy vol1 to vol2'' -- copy one volume into another
  • Example_Category
• References
• About this document ...

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Copyright 1994-99 Division of Physiologic Imaging, Dept. of Radiology, Univ. of Iowa

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