SIMBA Advanced Image Viewer Operation

 

The very new advanced  SIMBA Image Viewer facilitates the interactive inspection and annotation of images in the SIMBA system. This viewer replaces the VisionX java applet viewer that is no longer supported by most web browsers. It is faster and uses more advanced features than the javascript SIMBA Standard Viewer; however, it does not have all the measurement and annotation capabilities of the standard viewer. In general, one or, in the case of image comparisons, two viewports are initiated when the viewer is used by SIMBA, additional viewports may be opened by the user. There is also a Dark button that toggles a dark viewing presentation.

 

Known Bugs

1.     Up to 4 independent image viewports may be opened simultaneously in a web browser page and these viewports are draggable. However, there are some display issues if the viewports overlap each other; there are no problems if the viewports are separated from each other on the screen.

 

The SIMBA image viewer allows 1 – 4 independent viewports to be displayed.

The control groups for a viewport are shown below:

 

 

In detail the control group functions are as follows:   

 

1. Viewer Settings

 

     When Int is selected then zero-order pixel interpolation is used and when the image is zoomed in the outline of each pixel can be seen. The default setting is bilinear pixel interpolation

 

 

2. Viewport size: 

The size  of the  image window (largest dimension)  in the viewport is displayed. The image size may be changed by entering a different number in the box or by using one of the presets: Sm. = 400, Md. = 512 (default) and Lg. = 800 pixels.

 

3. Window settings:

The current image frame being displayed is shown. The frame may be changed by editing this number. Similarly, explicit values for the window and intercept may be set. Below the Level setting is a selector for a several standard  preset window and level settings.

 

 

4. Window and Frame sliders:

These sliders permit the image frame and window settings (window and level) to be incremented/decremented (top buttons) or rapidly changed to a different value. Speed is fairly slow if new images need to be read from the server

 

 

 

 

 

 

 

 

5. Animation

The right and left animation buttons start the images frame sequence in ascending or descending order respectively. The central button stops animation. The selector sets the speed of the animation with 1 being the slowest and 6 being the fastest

 

 

6.Image Selector

This button causes a pop-up window to display all available images for that case and permits them to be loaded.

 

7. Annotations and Focus

This first button toggles the display of the current bookmark location If there is one. The second button toggles the display of the boundaries if there are any. The Focus button displays the current focus location for zooming. The focus location coordinates are displayed next. Finally, the Set button will set the focus to the most recent mouse clicked location.

 

8.Marking and Information

The Mark button toggles the display of the optional annotation control panel.