CDIA Scanning Technology 5

Question 1

What is 'interpolated resolution' in scanner specifications, and how does it differ from optical resolution?

Accepted Answer

Interpolated resolution is achieved by software adding estimated pixels beyond the scanner's true optical capability

Answer

Interpolated resolution uses software algorithms to mathematically estimate and insert additional pixels beyond what the sensor physically captures, while optical resolution reflects the sensor's true hardware capability.

Question 2

In a high-volume scanning operation, what does 'pages per minute' (PPM) measure?

Accepted Answer

The number of complete document pages (sides) processed per minute at a given resolution

Answer

PPM is a standard scanner throughput metric measuring how many page sides are captured per minute under specified conditions (resolution, paper size, simplex or duplex mode).

Question 3

Which technique is used to improve the readability of scanned text documents that have bleed-through from the reverse side of thin paper?

Accepted Answer

Color dropout

Answer

Color dropout selectively eliminates specific color channels (often used to drop background colors or colored ink) and can reduce bleed-through visibility by removing the color in which the reverse-side content appears.

Question 4

What is the CDIA best practice recommendation regarding scanning resolution for records that may need to be enlarged or printed at a larger size than the original?

Accepted Answer

Scan at a higher resolution than standard to preserve detail needed for enlargement

Answer

Documents intended for enlargement or high-quality reprinting should be scanned at higher resolutions (typically 400–600 DPI) to ensure sufficient pixel density for the larger output size.

Question 5

Which ISIS (Image and Scanner Interface Specification) component is equivalent to the TWAIN Data Source?

Accepted Answer

ISIS Driver

Answer

In the ISIS architecture, the ISIS Driver is the hardware-specific component that interfaces directly with the scanner, analogous to the TWAIN Data Source.

(CDIA) Certified Document Imaging Architect Practice Test

(CDIA) Certified Document Imaging Architect Practice Test

CDIA Scanning Technology 5