Problem with evaluateObjectDetection function

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Patrizia 2024-7-15，9:03

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2139386-problem-with-evaluateobjectdetection-function

评论： Walter Roberson about 4 hours 前

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Hello, everyone,

I would like help with the function in question...

I attach the tables groundTruthData and detectionResults.

thanks

CODE:

% Evaluate object detection results
metrics = evaluateObjectDetection(detectionResultsTbl, groundTruthDataTbl);
Unrecognized function or variable 'detectionResultsTbl'.
% Extract precision and recall for a specific class ID (e.g. classID = 1)
classID = 1;
precision = metrics.ClassMetrics.Precision{classID};
recall = metrics.ClassMetrics.Recall{classID};
% Plot the precision-recall curve
figure
plot(recall, precision);
xlabel("Recall");
ylabel("Precision");
grid on;
title(sprintf("Average Precision = %.2f", metrics.ClassMetrics.mAP(classID)));

ERROR:

Error using evaluateObjectDetection>iFindOutputIdxsFromDS

Missing data in detectionResults. Unable to find Label data in detectionResults.

Error in evaluateObjectDetection (line 27)

predOutIdxs = iFindOutputIdxsFromDS(dsResultsCopy, 3, "detectionResults");

Error in untitled2 (line 306)

metrics = evaluateObjectDetection(detectionResultsTbl, groundTruthDataTbl);

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Torsten about 4 hours 前

I attach the tables groundTruthData and detectionResults.

Where ?

Walter Roberson about 4 hours 前

Your code disagrees with your images.

Your code in untitled2 shows creation of detectionResultsVector (which is not used anywhere), and does so by extracting a field named Labels from detectionResultsTbl . But your images show the table has a field named Label instead of Labels

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