CDIA Image Capture & Processing Techniques 5

Question 1

In document capture, what does 'throughput' measure for a production scanner?

Accepted Answer

The number of pages processed per minute (ppm) or images per minute (ipm)

Answer

Scanner throughput, measured in pages per minute (ppm) or images per minute (ipm), indicates how many document sides can be digitized in a given time period.

Question 2

Which process detects and marks blank pages during scanning so they can be automatically excluded from the document set?

Accepted Answer

Blank page detection

Answer

Blank page detection analyzes pixel content density and removes pages that fall below a defined threshold of ink coverage, preventing empty pages from entering the document repository.

Question 3

What challenge does scanning mixed-size document batches (e.g., letter and legal pages together) present?

Accepted Answer

The automatic document feeder may misfeed, and image cropping must dynamically adjust to each page's dimensions

Answer

Mixed-size batches risk mechanical misfeeds in the ADF and require auto-size detection so the scanner crops each image to the actual document dimensions rather than a fixed template.

Question 4

What is the effect of increasing JPEG compression quality on a scanned document image?

Accepted Answer

Larger file size with better image fidelity and fewer compression artifacts

Answer

Higher JPEG quality settings reduce compression ratios, retaining more image data and reducing artifacts such as blocking, but producing proportionally larger output files.

Question 5

Which technique allows a scanner to automatically detect the document boundaries and remove the excess scanner bed background from the image?

Accepted Answer

Auto-crop (content detection)

Answer

Auto-crop or content detection algorithms identify the actual document edges by detecting contrast differences between the paper and the scanner background, trimming the image to the document boundary.

(CDIA) Certified Document Imaging Architect Practice Test

(CDIA) Certified Document Imaging Architect Practice Test

CDIA Image Capture & Processing Techniques 5