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Rock pieces should be dry and individually rotated such that the split face is approximately perpendicular to the axis of the camera. The lights and lens aperture are configured to give consistent illumination and focus to effectively image rubble bins.
For 360 Imaging of hard rock cores refer to the section 360 Imaging of Hard Rock.
Loading Section
- Pick up section half and place in the track loading area with the blue end cap forward against the color block. Make sure the section is pushed all the way against the block so the end cap is lined up with 0 cm on the ruler.
- Bring the endcap for the section to the SHIL workstation for entering sample information.
- If the section has a whole round sample taken, denoted by a yellow bottom endcap, place a split styrofoam spacer at the end of the section. Cut the styrofoam to same length of the sample taken and write letters on the styrofoam to indicate the type of the sample taken. For example a 5 cm Interstitial Water whole round sample taken. A 5 cm styrofoam spacer with 'IW' written on it would be placed at the bottom. Once a spacer has been made it can be used over the course of the expedition for applicable section halves.
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Users can adjust three RGB parameters: decimate interval, stripe width, and whether to use the mean or midpoint RGB value. For more information regarding how RGB data is calculated please see Appendix A: RGB Calculation
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Adjust RGB Settings
1.Go to Instruments > Camera: General Setup (Figure 6). The JAI Camera Setup Parameters window will appear (Figure 7).
Figure 6. Select JAI Camera Setup Parameters window
2. Adjust values in the 'RGB Data' setting controls.
- Stripe Width: Centered in the middle of the core, this determines the width across the core that will be used to calculate RGB data. This is typically set to 2cm. While the value can be changed higher or lower it is commonly at 2 cm. The advantage is this width provides enough material to not exaggerate small disturbances but rather provides RGB data representative of the bulk lithology.
- Decimate Interval: The interval that sets the recorded offset along the length of the core. This value can be set between 1 - 2.9 cm
- Mean or Midpoint: Can Mean or Midpoint: Can choose how RGB is calculated for the interval. Interval mean calculates the mean RGB values over the interval. Interval Midpoint uses the RGB value at the center of the interval. This is typically set to Interval Mean.
Adjust RGB Settings
1.Go to Instruments > General Setup
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Figure 7. JAI Camera Setup Parameters window
The 'General' and 'Dropped Lines Warning Threshold' should not need to be adjusted. If something needs to be altered talk to the programmers and ALOs.
3. Click 'Accept' to save values. If select 'Cancel' the values will revert back to prior settings and the window will close.
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Camera Speed is calculated during the calibration procedure. The camera speed set must be lower than the speed determined by the calibration or else the camera will start 'dropping lines'. Dropped lines means the camera is moving too quickly to calculate the RGB and offsets at the bottom of the core will return values of '0'.
Adjust Camera Speed
1.Go to DAQ > Image Capture Motion Setup (Figure 8).
Figure 8. Select Image Scan Setup window
2. The Image Scan Setup window appears. There are four settings in this window:
- Speed: This is the speed in cm/sec the camera moves while measuring the section. This speed must be set lower than the speed determined by the Camera Calibration.
- Acceleration: The rate in cm/sec the camera ramps up to when not measuring a section.
- Deccelaration: The rate in cm/sec the camera will slow down when not measuring a section.
- Start Position: This is the position the imaging begins. Note it will be a negative number. The top of the core starts at 0cm 0 cm in order to image the standard gray-scale card in front of the core, that location will be negative.
Start A Measurement
1.Click the green Start Button button in the IMS Control panel (Figure 9).
2. The SHIL Section Information Windowwindow will pop up (FIGURE XX).
Figure 9. Select SHIL Section Information window
3. The area on the left has four fields to define the condition of the sample measurement:
- Image Type: 'Section Imaging' or '360 Imaging'. For instructions on the 360 imaging refer to XXXXXX 360 Imaging Hard Rock section.
- Wet/Dry: Indicates the type of the material being image
- Condition: 'Pristine' or 'Sampled/-Altered'. Sampled/altered -Altered could include imaging the working half or a highly disturbed section. Most instances should be pristine Pristine.
- 360 Imaging: This area is grayed out unless '360 Imaging' Image Type is selected. For instructions on the 360 imaging refer to XXXXXX 360 Imaging Hard Rock section.
Select the conditions appropriate for the section half.
4. There are three ways to enter sample information into IMS:
- Barcode (most common): Put cursor in the 'Scan' box. Use the bar-code scanner to scan the label on the end-cap. The sample information will parse into the 'Sample ID', 'LIMS ID', and Length fields.
- LIMS Entry: Select the 'LIMS' tab at the top of the window. Navigate through the hierarchy to select the correct, expedition, site, hole, core, and section. Length information will automatically populate when the section is selected.
- Manual Entry: Select the 'Manual' tab at the top of the window. Click in the box and manually type sample information into the box.
By default the instrument is set for imaging the archive half and will not allow you to scan a working label. If you want to take a picture of a working half you need to go to the MANUAL tag tab and select W (working) into the Section Half label (See the picture bellowFigure 10). Once you have selected the W (working), you will not be able to scan an archive half; in order to do that you need to go back into the MANUAL tag tab and re-select A (archive).
Figure 10. SHIL MANUAL Section Information window
5. Click Take a Picture. The lights will turn on and start moving down the length of the core. In the IMS interface the sample information will go away revealing the measurement windows. The image and RGB data is displayed and updates as the measurement progresses.
6. When the measurement is complete, the camera lights will turn off and move back to the home position on the track.
7. The Image Crop window (Figure 11) pops up. An image should be cropped to include all material and the inner edge of the end-cap. RGB data will exclude data outside of the Crop area. The green box is the IMS estimation of the crop area. Click and drag the green lines to adjust the cropped area at the top, bottom, and sides of the image. Tools in this window include:
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The Image crop restricts users to limit adjustments to 2cm or less. The message box will indicate if the crop has exceeded allowable limits and the 'WRND Info' message box indicates if and where any whole round samples were taken from the section. If the image needs to cropped by more than 2cm check the correct section/end cap is being uses, a styrofoam spacer is not missing, and the curated length. Cores can expand so if the curated length is incorrect, talk to the curator on shift to correct the length. Note this will also create a need for the curator to re-calcuate depth of the hole. If the error is in the curated length of the core a user can check the 'override crop restriction' button to crop the image and upload the data.
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9. If satisfied with the image click Save Image. If the image needs to be re-imaged click 'Discard Image' and re-start the measuring process.
10. The 'Image CropCROP' window will go away and the 'Sample SHIL Section Information' window will appear again.
Figure 11. Image CROP window
Uploading data
Data Structure
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How to Upload data
- Open up MUT (FIG XXFigure 12). Use LIMS Applications password to login. The LIMS Uploader window will open (Figure 13).
Figure 12. Desktop MUT icon
2. Set 'Project' at the bottom of the screen to either the current expedition or '999' if performing tests.
Figure 13. LIMS Uploader window
3. Check 'Automatic Upload' in the lower right hand corner. At the refresh interval the files will upload to LIMS.
4. Files with checkmarks in the right column will upload. A green arrow in the
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column Status indicates it is in process of upload. A purple question mark indicates the file is not recognized by MUT. This could be due to an incorrect sample name or only one file being in the 'IN' Folder.
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5. After files are successfully uploaded they move from 'data > in' to the 'data > archive' folder. When the files move they will not longer appear MUT. If a file was unable to upload it will move from 'data > in' to 'data > error' and two new buttons will appear in MUT saying 'Show Error' and 'Show Error Files'.
MUT Configuration
File Path
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