An Implementation of the 'Congruent Matching Cells' Method

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Documentation for package ‘cmcR’ version 0.1.11

• DESCRIPTION file.
• User guides, package vignettes and other documentation.

Help Pages

cmcPlot	Plot Congruent Matching Cells results for a pair of cartridge cases.
comparison_alignedTargetCell	Extract a matrix from the target region of the same dimension as the reference cell depending on the estimated translation calculated from comparison_fft_ccf
comparison_allTogether	Performs all steps in the cell-based comparison procedure.
comparison_calcPropMissing	Calculate the proportion of missing values in a breech face scan
comparison_cellDivision	Split a reference scan into a grid of cells
comparison_cor	Calculates correlation between a cell and a matrix of the same dimensions extracted from the cell's associated region.
comparison_fft_ccf	Estimate translation alignment between a cell/region pair based on the Cross-Correlation Theorem.
comparison_getTargetRegions	Extract regions from a target scan based on associated cells in reference scan
comparison_replaceMissing	Replace missing values in a scan
comparison_standardizeHeights	Standardize height values of a scan by centering/scaling by desired statistics and replacing missing values
decision_CMC	Applies the decision rules of the original method of Song (2013) or the High CMC method of Tong et al. (2015)
decision_combineDirections	Combine data frames containing CMC results from 2 comparison directions
decision_highCMC_cmcThetaDistrib	Compute CMC-theta distribution for a set of comparison features
decision_highCMC_identifyHighCMCThetas	Classify theta values in CMC-theta distribution as having "High" or "Low" CMC candidate counts
fadul1.1_processed	Processed versions of the fadul1.1_raw and fadul1.2_raw datasets using preProcess_* functions from the cmcR package
fadul1.2_processed	Processed versions of the fadul1.1_raw and fadul1.2_raw datasets using preProcess_* functions from the cmcR package
fadulData_processed	Processed versions of the fadul1.1_raw and fadul1.2_raw datasets using preProcess_* functions from the cmcR package
preProcess_crop	Remove observations from the exterior of interior of a breech face scan
preProcess_erode	Erode the interior or exterior of a cartridge case surface
preProcess_gaussFilter	Performs a low, high, or bandpass Gaussian filter on a surface matrix with a particular cut-off wavelength.
preProcess_ransacLevel	Finds plane of breechface marks using the RANSAC method
preProcess_removeFPCircle	Given a surface matrix, estimates and filters any pixels within the estimated firing pin impression circle
preProcess_removeTrend	Level a breech face impression surface matrix by a conditional statistic
x3pListPlot	Plot a list of x3ps