Explain why a correct sign box makes the final labeling error the classifier's responsibility.
Question: A traffic-sign system first detects a sign and then assigns it a category. Explain why a mistake on a yield sign is attributed to the sign-category classifier if the detector produces a correct bounding box around the sign.
Sample answer: If the detector draws a correct box around the sign, then it has already done its job: it found the object and localized it accurately. The later component is supposed to use that correctly extracted region to decide the sign type. If the system still assigns the wrong category, the failure is not in detection. The error belongs to the sign-category classifier, because that is the part that produced the incorrect label from a correct detected region.
Key points:
- A correct bounding box shows that detection succeeded.
- A wrong final label after a correct detection is not caused by the detector.
- The misclassification should be attributed to the classifier that assigns the category.
Rubric: Answers should state that a correct bounding box indicates the detector completed its localization task successfully, so the incorrect yield/other sign label must come from the downstream classifier that produced the final category.
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