CDIA Quality Control 5

Question 1

Which document imaging defect is characterized by dark spots or marks appearing on scanned images that were not present on the original document?

Accepted Answer

Speckling or noise

Answer

Speckling or image noise appears as random dark pixels on the scanned image, typically caused by dust on the scanner glass or sensor imperfections.

Question 2

What is the recommended approach when a QC inspector finds that an entire day's scanning production fails to meet quality standards?

Accepted Answer

Halt production, identify and fix the root cause, then rescan the entire affected batch

Answer

When a full day's production fails QC, the root cause must be corrected before rescanning to prevent the same defects from recurring.

Question 3

In document imaging, what does 'Acceptable Quality Level' (AQL) define?

Accepted Answer

The maximum percentage of defective items considered acceptable in a sampled batch

Answer

AQL is the worst acceptable average quality level in a sampling plan; batches with defect rates at or below the AQL are accepted, while those above are rejected.

Question 4

Which post-scan image processing step directly improves OCR accuracy by straightening tilted text lines within an image?

Accepted Answer

Deskewing

Answer

Deskewing algorithmically rotates a tilted scanned image to align text lines horizontally, which significantly improves OCR recognition accuracy.

Question 5

A CDIA project manager wants to track QC performance trends over time. Which tool is most useful for visualizing whether the defect rate is remaining stable or drifting?

Accepted Answer

Statistical process control (SPC) chart

Answer

SPC charts plot defect rates over time and use control limits to distinguish normal variation from statistically significant quality trends or shifts.

(CDIA) Certified Document Imaging Architect Practice Test

(CDIA) Certified Document Imaging Architect Practice Test

CDIA Quality Control 5