Image Optimization 5-45 
5.13.7.2  iPage Basic Functions and Operations   
 
 
 
 
<1>   A plane  <2>   B plane (the current 
reference image) 
<3>   C plane   
Central section line (Current 
active section line) 
<7>   Section line  <8>  
Space between two 
planes 
<9>   Image parameter 
number 
Section plane position (to the 
central plane) 
<13>  Central plane mark  <14>  Green box on the active image 
  Layout 
The system supports several types of display layout: 2*2, 3*3, 4*4 and 5*5. Click the 
corresponding icon on the screen to select, and the selection [Slice Number] changes 
accordingly. 
  Reference image 
Click [A Plane], [B Plane] or [C Plane] to select the reference image. 
  Slice and slice line 
  Central slice: the central plane which corresponds to the central slice line is the 
central slice, marked with a green “*” in the top-left corner of the image. 
  View vertical or horizontal slices. 
  Active slice: the central plane which corresponds to the green slice line is the active 
slice, marked with a green box. The default active slice is the central slice. 
  Slice order number: indicates the order of the slices. The position of the central slice 
is “0”, the slices before the central slice are marked with negative integral numbers, 
and the slices after the central slice are marked with positive integral numbers.