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The Object Analyzer software is designed to perform a statistical analysis of catalyst pellets size on the image obtained from a scanner.
1. Pellets parameters determination, namely:
c) form (ball, stem, trefoil, quadrifoil);
2. Statistical parameters calculation by particles.
3. Generating a report on the pellet parameters analysis.
4. Pellet number distribution along the length, diameter.
5. Analysis correcting ability in manual mode.
6. Exporting data from a scan into Microsoft Wordpad and Microsoft Excel formats.
7. Printing the report directly from the program immediately after its formation.
8. Comparison of two different samples.
9. Calibrating the scanner before scanning.
10. Testing after scanning to the item:
a) overlapping of the scan area edges with particles;
b) particles curvature;
c) presence of dust spots;
d) touching each other’s particles.
Particles (in our case, catalyst pellets) are poured onto the scanning surface of the scanner so that for more accurate analysis a large number of particles clusters do not form in one place. The scanner closes and, in the Object Analyzer program, the catalyst pellets are scanned and analyzed.
The necessary parameters are set prior to analysis.
In the video we poured the necessary amount of catalysts onto the scanner surface (the allowed number of particles is not less than 400 pieces), closed it and opened the Object Analyzer program.
We need to establish a program connection with the scanner in order to scan the catalists, in our case the scanner is already connected to the program. The scanner settings will need to be done only once when the program is installed, then the settings will be saved.
Go to the left panel of the main window of the program interface.
There will be buttons:
|“Connect device” - to select the name of the required scanner|
|“Scan and analyze” - to download an image from the scanner and perform calculations immediately after downloading|
|“Re-analyze” - to perform calculations if the image is already uploaded
|“Open a field of view” - to load an image from a file|
|“Save field of view” - to convert an image into a file|
|“Export statistics to Excel” - to record the analysis results in a file in the Excel format|
|“Zoom in” - to increase the image size|
|“Zoom out” - to reduce the image size|
|“1:1” - to output the image in its original size|
|“Fit to window” - to increase or decrease the image size to the window size|
To scan, we click on the scanner icon .
Scanning can be done on the right side of the window by clicking on the “Scan” button.
Scanning usually takes about 30 seconds and more, depending on the amount of your particles on the scanner surface.
As the pellets scanning is completed, a window is opened:
We can scan again or accept a scanned image (if we just press “Accept”, we will take each of the particles separately, if we press “Accept All”, then we will take all the particles at once).
The result of scanning is displayed in the right part of the program window, the pellets will look like this:
This tab is for:
1. Entering additional information about the analysis:
a. Sample name
b. Date of report creation
c. Operator Name
d. Object type
2. Entering a comment
3. Selection of units for measuring granule parameters
4. Choosing the format for presenting data in tables and histograms
5. Parameters of the filters used for statistical analysis
6. Output of the image of granules
7. Scanner settings
8. Settings for the type of pellet measurements
On the left panel of the “Scan” tab there are an “Information” tab and a “Filter” tab.
On the “Information” tab, you can enter additional information about the report, the units of measurement of the pellet parameters, the format of the data representation in the tables and on the graphs, the parameters of the filters by area, curvature, diameter and tangency of the particles:
Here the number of digits after the comma is set when the parameter value is displayed.
If you want to exclude particles from the “area” and “curvature” parameters, then you should check the “Exclude particles with parameters” widget:
And in the “Area of less than” field enter the value of the particle area,
and in the field “Curvature of more than” enter the value of the particle curvature.
Then after analysis performance particles with a smaller area or greater curvature than established, will fall under the filter and will be marked for removal.
If you want to exclude particles by the parameters “touching” and “diameter“, then you should set a checkmark for the “Touch check” widget:
And in the “Diameter of more than” field enter the value of the particle diameter.
Then after analysis is performed, the particles that are in contact or in which the diameter is larger than set will fall under the filter and will be marked for removal.
If the value is entered in the edit field manually, then press “Enter” to complete the input.
The analysis is repeated after changing any filter parameter and then, with the help of “Accept / Reject” dialog box, the user has the opportunity to accept or delete from the statistics those particles that have come under the filter.
In this field you can enter an additional information to the report.
On this tab you should set the parameters for the filters: “Threshold in HSV space“, “Opening“, “Closing“, “Morphological segmentation“.
The central window of the “Scan” tab is the image viewer. The program highlights and outlines the contours of all detected pellets.
On the “Settings of measurement show” tab, you can change the settings that the program will use to display measurements.
On the tab “Analysis” there are:
1. Table of general statistics by sample
This table displays the general statistics data obtained after the analysis of the detected particles.
2. Data table for an individual particle
After analyzing the detected particles this table displays the data for each particle.
3. Image of scanned particles.
The program highlights and outlines the contours of all detected pellets.
After completing the analysis:
a. The granules corresponding to the required parameters are drawn in one color, the granules falling under the filter are drawn in a different color.
b. The first of the filtered granules is programatically marked with the selected one and becomes the current one for the pop-up window “Accept / Reject”.
c. Using the “Accept / Reject” dialog, the user can accept or reject the specified granule from the statistics.
On the “Statistics” tab the user can select the granule statistical parameter to perform the analysis, set the manual or automatic mode for calculating the ranges of this parameter, and also define the boundaries for the ranges.
On this tab there are a general statistics table by the sample, a data table by an individual particle, a distribution histogram of the selected parameter by ranges, and a statistics table of the selected parameter by ranges.
The statistical parameter can be set in two ways:
1. Set the “focus” in the following buttons at the top of the “Statistics” tab.
2. Select the required parameter in the “Statistics parameter” widget.
First, the “Comparison” tab displays histogram values of the selected parameter by ranges for the current image downloaded from the scanner.
For comparative analysis, you should download other images of granules previously stored in the files.
The histogram displays the percentage of particles for which the value of the selected parameter is within the specified range.
With the help of “Add” button the user can upload several additional images from the files.
Afterwards you can compare the data for different images.
The “Report” tab can be opened after the image is downloaded and analyzed.
The document is output in Word format “* .docx” and the data can be edited.
To save the report in the format “* .docx”, click the “Save report” button:
The print preview is opened with the “Print Preview” button:
And it is closed with the “Close preview” button:
To print a report, click the “Print” button: