DIS Quality Assurance & Testing Flashcards
6 cards from real DIS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 DIS Quality Assurance & Testing flashcards as text
In digital imaging QA, what does 'file integrity verification' involve?
Answer: Confirming that image files have not been corrupted or altered by checking checksums or hash values
File integrity verification uses cryptographic checksums (e.g., MD5, SHA-256) to confirm that image files are complete and unaltered from their point of creation.
What is the primary purpose of using a colorimetric reference target (e.g., Macbeth ColorChecker) during a QA capture session?
Answer: To measure and verify the color accuracy of the imaging system against known color values
A colorimetric reference target like the Macbeth ColorChecker provides known color patches that allow precise measurement of a camera or scanner's color accuracy.
What does 'geometric accuracy' testing verify in a scanned document QA process?
Answer: That the scanned image faithfully represents the physical dimensions and proportions of the original without distortion or skew
Geometric accuracy testing checks that scanned images have correct dimensions, aspect ratios, and alignment, with no skew, keystoning, or scaling errors.
In imaging QA, what is meant by 'acceptance testing' before deploying a new imaging system?
Answer: A formal verification process confirming the system meets all specified performance and quality requirements before going live
Acceptance testing is a formal process where the buyer or end-user verifies that a new imaging system meets all agreed-upon specifications before accepting delivery.
Which tool is commonly used in digital imaging QA to measure the uniformity of illumination across a scan bed?
Answer: A flatfield target or uniformity target scanned and analyzed for brightness variation across the image area
A flatfield or uniformity target reveals brightness inconsistencies caused by uneven illumination, lens vignetting, or sensor irregularities across the scan bed.
What is the purpose of maintaining a 'defect log' in a digital imaging production QA system?
Answer: To systematically record quality failures, their causes, and corrective actions to improve ongoing production quality
A defect log captures recurring quality issues and their resolutions, enabling process improvement and providing an audit trail of QA activities.