[wptabtitle] Lighting Conditions[/wptabtitle] [wptabcontent]Minimizing ambient light is essential for collecting good scan data with the Breuckmann. Even small amounts of ambient light can cause problems. When scanning outdoors working at night is often the best option. When scanning during the day a blackout tent is needed.

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[wptabtitle] Scan overlap [/wptabtitle] [wptabcontent]In order to collect data all the way around an object or across a flat object’s surface you will likely have to take multiple scans. Ensuring that there is enough overlap between scans to find good match points is important. Here you can see more than 60% overlap between adjacent scans.

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[wptabtitle] Data Voids [/wptabtitle] [wptabcontent]As you add and align scans, check for voids or gaps in the dataset. You can easily fill these in with additional scans while everything is set up.

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[wptabtitle] Delete Unwanted Data[/wptabtitle] [wptabcontent]As you are collecting scans, you can delete unwanted data by switching to the processing screen. Shift and left click to select unwanted areas. Then delete using the ‘delete all selected element’ button.

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[wptabtitle] Point Picking[/wptabtitle] [wptabcontent]To align the scans pick matching points on each dataset. The point matching algorithm is fairly robust so you don’t have to be too careful.

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[wptabtitle] Re-alignment[/wptabtitle] [wptabcontent]If you are unhappy with the alignment at any point you can revise the alignment of individual datasets by going to the ‘pre-align’ module and picking points as you would during the scan process.

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[wptabtitle] Activate or Deactivate Data[/wptabtitle] [wptabcontent]To limit the number of scans visible in the data volume you can activate or deactivate them by right clicking on them in the project directory.

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[wptabtitle] Aligned![/wptabtitle] [wptabcontent]Once you are satisfied with your alignment, you can push the ‘align’ button to refine before proceeding with further processing.

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BEGINNING YOUR OPTOCAT PROJECT:
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[wptabtitle] INITIALIZE PROJECT[/wptabtitle] [wptabcontent]1. Initialize a Project by clicking in the main left-hand menu on Scan>Contour Matching> Initialization (assuming you are not using the turntable in your project). A pop-up menu will appear where you can create a new project and select the directory where it will be stored, or you can initialize an existing project.

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[wptabtitle] CREATE TEMPLATE[/wptabtitle]

[wptabcontent]2. Once you have created or initialized a project a second pop-up menu will appear providing options for using a template for the project settings. Select the Full template, or a custom template you have created.

3. In the third pop-up menu, select the lens size you are using from the scanner serial number dialogue box. The lens size is appended to the end of the scanner serial number.

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[wptabtitle] POP UP MENU[/wptabtitle]
[wptabcontent]4. A fourth pop-up menu will now appear with a series of tabs along the top. Work your way through the tabs checking that the options are set as described below. If the parameters of an option are not specified, leave the defaults.[/wptabcontent]

[wptabtitle] CAPTURE TAB[/wptabtitle]
[wptabcontent]In the Capture tab set the Averaging to reduce noise option to 8 (Standard) and check the box next to Flickerless Shutter if you are working under fluorescent lights.

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[wptabtitle] MASKING TAB[/wptabtitle] [wptabcontent] In the Masking tab set Reliability to More Data.

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[wptabtitle] FLITER TAB[/wptabtitle] [wptabcontent] In the 2D Filter tab select No Filter
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[wptabtitle] TRIANGULATION TAB[/wptabtitle]
[wptabcontent]In the Triangulation tab set 2D-Subsampling to Full Resolution and set 3D-Mesh Compression to Lowest.

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[wptabtitle] 3D FILTER TAB[/wptabtitle] [wptabcontent] In the 3D Filter tab set the Standard Filter size to 3x Pixelsize, set Cycles to 3, and leave all other parameters as the defaults.

In the Processing tab, leave the defaults.[/wptabcontent]

[wptabtitle] ALIGN TAB[/wptabtitle]
[wptabcontent] In the Align tab set Reliability to Ignore Reliability (counter-intuitive, we know!).

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[wptabtitle] TEXTURE TAB[/wptabtitle]
[wptabcontent] In the Texture tab check the boxes next to Use Texture and Use Color and set your lighting condition appropriately.

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[wptabtitle] INFORMATION TAB[/wptabtitle]

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In the Information tab, fill in the metadata for your project.

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[wptabtitle] OPTIONS TAB[/wptabtitle]

[wptabcontent] In the Options tab check the Mains Frequency and pick the correct setting for the country in which you are working.

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[wptabtitle] ADVANCED TAB[/wptabtitle]
[wptabcontent] In the advanced tab, leave the defaults.
Click OK to accept your parameters for the project[/wptabcontent]

[wptabtitle] SAVE SETTINGS[/wptabtitle]
[wptabcontent]5. In the main menu select File and Save Settings as Template.[/wptabcontent]
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