3D Point Cloud Memory Limitation in Scorpion

Running as a 32-bit application under Windows XP or w7 Scorpion is limited by the available memory in the computer. There are difference between 32 bit and 64 bit operating system versions.

32-bit Operating System Limitation is 2 GByte

If the computer is equipped with 3 GByte or more it is normally limited by the Operating System. The original NT memory model, there is 2GByte for User Mode and 2 GByte for the operating system.

A 32 bit application is normally limited to approximately 1.2 GByte.

Large memory Model is supported by Scorpion Vision – this means that Scorpion have more than 2.0 GByte of memory available.

From Scorpion Vision 7.0 the 3G Byte memory model is fully supported – more information http://scorpion.tordivel.no/help/GettingStarted/3gswitch.htm

Windows-7 64-bit OS – provides 4 GByte memory for each 32-bit application

Moving to Windows 64-bit will double the amount of available memory to Scorpion Vision Software from 2.0 GByte to 4.0 GByte.

Windows 32-bit OS – Large 3D Point Cloud – 4000 x 18000 x 3 = 210 MByte

Scorpion in large memory model can handle a point cloud of 70 million elements = 4000×18000 points. The calculation can be a follows:

  1. Scorpion Vision Program   300 MByte
  2. Active 3D Image – 3 copies = 630 MByte
  3. Three Images in History list = 630 MByte

Total Memory consumption = 1.7 GByte

This size of point cloud is close to the practical image size scorpion can handle.

Windows 64-bit Large 3D Point Cloud – 4000 x 18000 x 3 = 210 MByte

Scorpion in large memory model can handle a point cloud of 70 million elements = 4000×18000 points. The calculation can be a follows:

  1. Scorpion Vision Program   300 MByte
  2. Active 3D Image – 3 copies = 630 MByte
  3. Ten Images in History list = 2.1 GByte MByte

Total Memory consumption = 3.0 GByte

With Windows-7 64 Bit pointclouds of 300 MByte can be handled with headroom 🙂

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