DISPLAYED AREA MODULE ATTRIBUTES (C.10-4)


Tag Attribute Type Description
(0070,005A)Displayed Area Selection Sequence1 A sequence of Items each of which describes the displayed area selection for a group of images or frames. Sufficient Items shall be present to describe every image and frame listed in the Presentation State Module. One or more Items shall be present.
(0008,1140)>Referenced Image Sequence1C Sequence of Repeating Items where each Item provides reference to a selected set of Image SOP Class/SOP Instance pairs that are defined in the Presentation State Module. Required if a sequence item is present, and if the displayed area selection in this Item does not apply to all the images listed in the Presentation State Module.
(0008,1150)>>Referenced SOP Class UID1C Uniquely identifies the referenced SOP Class. Required if sequence item is present.
(0008,1155)>>Referenced SOP Instance UID1C Uniquely identifies the referenced SOP Instance. Required if sequence item is present.
(0008,1160)>>Referenced Frame Number1C Identifies the frame numbers within the referenced SOP Instance to which this displayed area selection applies. Required if sequence item is present and the referenced image is a multi-frame image and the displayed area selection does not apply to all frames.
(0070,0052)>Displayed Area Top Left Hand Corner1 The top left (after spatial transformation) pixel in the referenced image to be displayed, given as column\row. Column is the horizontal (before spatial transformation) offset (X) and row is the vertical (before spatial transformation) offset (Y) relative to the origin of the pixel data before spatial transformation, which is 1\1. See Figure C.10.4-1.
(0070,0053)>Displayed Area Bottom Right Hand Corner1 The bottom right (after spatial transformation) pixel in the referenced image to be displayed, given as column\row. Column is the horizontal (before spatial transformation) offset (X) and row is the vertical (before spatial transformation) offset (Y) relative to the origin of the pixel data before spatial transformation, which is 1\1. See Figure C.10.4-1.
(0070,0100)>Presentation Size Mode1 Manner of selection of display size. Enumerated Values: SCALE TO FIT TRUE SIZE MAGNIFY See C.10.4 for further explanation.
(0070,0101)>Presentation Pixel Spacing1C Physical distance between the center of each pixel in the referenced image (before spatial transformation), specified by a numeric pair – adjacent row spacing (delimiter) adjacent column spacing in mm. Notes: 1. This value may be different from Pixel Spacing (0028,0030) or Imager Pixel Spacing (0018,1164) specified in the referenced image, which are ignored, since some form of calibration may have been performed (for example by reference to an object of known size in the image). 2. If the row and column spacing are different, then the pixel aspect ratio of the image is not 1:1. Required if Presentation Size Mode (0070,0100) is TRUE SIZE, in which case the values will correspond to the physical distance between the center of each pixel on the display device. May be present if Presentation Size Mode (0070,0100) is SCALE TO FIT or MAGNIFY, in which case the values are used to compute the aspect ratio of the image pixels.
(0070,0102)>Presentation Pixel Aspect Ratio1C Ratio of the vertical size and the horizontal size of the pixels in the referenced image, to be used to display the referenced image, specified by a pair of integer values where the first value is the vertical pixel size and the second value is the horizontal pixel size. See C.7.6.3.1.7. Required if Presentation Pixel Spacing (0070,0101) is not present. Notes: 1. This value may be different from the aspect ratio specified by Pixel Aspect Ratio (0028,0034) in the referenced image, or implied by the values of Pixel Spacing (0028,0030) or Imager Pixel Spacing (0018,1164) specified in the referenced image, which are ignored. 2. This value must be specified even if the aspect ratio is 1:1.
(0070,0103)>Presentation Pixel Magnification Ratio1C Ratio of displayed pixels to source pixels, specified in one dimension. Required if Presentation Size Mode (0070,0100) is MAGNIFY. Notes: 1. A value of 1.0 would imply that one pixel in the referenced image would be displayed as one pixel on the display (i.e. it would not be interpolated if the aspect ratio of the image pixels is 1:1). 2. A value of 2.0 would imply that one pixel in the referenced image would be displayed as 4 pixels on the display (i.e. up-sampled by a factor of 2 in each of the row and column directions). 3. A value of 0.5 would imply that 4 pixels in the referenced image would be displayed as 1 pixel on the display (i.e. down-sampled by a factor of 2 in each of the row and column directions). 4. If the source pixels have an aspect ratio of other than 1:1, then they are assumed to have been interpolated to a display pixel aspect ratio of 1:1 prior to magnification.




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