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ND Presentation State

ND Presentation State. D. Sluis August 21, 2003, WG11 Meeting. Overview. ND Presentation State motivation Conceptual overview of ND image (Sup63) Requirements overview Straw man pipeline & info model Next Steps. Clinical Use. Describe how to view acquired “ND images”

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ND Presentation State

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  1. ND Presentation State D. Sluis August 21, 2003, WG11 Meeting

  2. Overview • ND Presentation State motivation • Conceptual overview of ND image (Sup63) • Requirements overview • Straw man pipeline & info model • Next Steps

  3. Clinical Use • Describe how to view acquired “ND images” • Preserve user created views for recall • View “thumbnails” for user selection

  4. 2D Images have Display State • DICOM 2D image • Is array of pixels • Has orientation • Has Photometric Interpretation • Presentation State alters or augments image display Up Pixels Left Right Down Photometric Interpretation

  5. ND “Images” Have No Display State • No pixels • Cannot display as is • No horz/vert, up/down, left/right • No photometric interpretation • Multiple layers to display • Acute need for ND Presentation State • A view of Stored Values in Component Array

  6. Component Array Component Dimension Component Value Stored Values ND Framework

  7. Real World Domain Mapping Component Value Value A Value B Stored Values ComponentDimension Mapping ValueMapping Real World Domains Space, time, absorbance, velocity, … Unified, Consistent Mapping of Real World Domains

  8. Ultrasound Example Component Value Echo Doppler Velocity Stored Value Mapping Spatial Mapping mm dB mm/s Space Velocity TissueEcho

  9. Requirements Classification • Data Domain • Masking, thresholds, … • Display domain • Mapping the 2D Display Window to the data • Define pixel intensity mapping • Multi-Window Display • Annotation and Graphics • Other • Presentation Thumbnails

  10. Masking • Spatial and other Masking • Cut planes, bit masks, shapes… • Unions and intersections • Value Masking • Threshold window • Comparative values (aka write priority)

  11. Display Window • Horizontal and vertical mapping to Component Array axes • Orthogonal, oblique,curved • Dynamic behavior • Cine • Scrolling, sweeping, M-Mode • State paths • Fly-through, moving cut plane • Overlapping windows • 2D Annotation and mask

  12. Rendering • Rendering type • Tomographic • Integrals • Volumetric, MIP, etc. • Shading: Phong, surface … • Support coarse set of models? • Value rendering • Color • Multi-Value Blending () • Layer priority …

  13. Multi-Window Display • Bi- and multi-plane views, MPR • M-Mode • Synchronized windows (shared state)

  14. Annotation and Graphics • Data space • Shapes • Semantics • Display space

  15. Presentation State “Thumbnail” Views • A 2D view intended to help user navigate images and presentation states • Include in Presentation State? Image? • Icon Image (0088,0200) has awkward restrictions

  16. Draft Info Model

  17. ND Presentation State Enhanced US Enhanced US PS ND Image (63) Spatial Registration (73) DICOM Supplements WG12 3D/4D US (43) WG17&WG11 ND Presentation State WG17 2003 2004 2005 2006 Approximate Time when Official DICOM

  18. Next Steps? • Use case and requirements consensus • Tiered supplements? • Work & coordination consensus • Draft Work Item

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