Capture and Sampling

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1. Which explanation matches from scene light to sensor values?A. Sampling records a continuous pattern on a discrete grid; detail above the grid's usable frequency can alias.B. Nearest and smooth interpolation estimate values between existing samples; neither measures the original scene again.C. A photosite integrates light during exposure, then electronics convert its signal into a digital value.D. A calibration target supplies a physical length per pixel for a fixed imaging setup.

2. Which explanation matches sampling a pattern without aliasing?A. A photosite integrates light during exposure, then electronics convert its signal into a digital value.B. Sampling records a continuous pattern on a discrete grid; detail above the grid's usable frequency can alias.C. Nearest and smooth interpolation estimate values between existing samples; neither measures the original scene again.D. A calibration target supplies a physical length per pixel for a fixed imaging setup.

3. Which explanation matches interpolation does not recreate measurements?A. Nearest and smooth interpolation estimate values between existing samples; neither measures the original scene again.B. A photosite integrates light during exposure, then electronics convert its signal into a digital value.C. Sampling records a continuous pattern on a discrete grid; detail above the grid's usable frequency can alias.D. A calibration target supplies a physical length per pixel for a fixed imaging setup.

4. For sampling a pattern without aliasing, which result or action fits this practical case: Fine threads in the woven sample turn into wide false bands.A. Compare a dark patch, a well exposed patch, and one that clips at the sensor maximum.B. Compare a 20-pixel crop before and after enlarging it fourfold.C. If a known 10-millimeter span covers 100 pixels, 30 pixels correspond to about 3 millimeters under that same geometry.D. Filter a dense stripe pattern before reducing the sampled image to half width.

5. For calibrate the scale of an image, which result or action fits this practical case: The microscope display shows a scratch 30 pixels across.A. Compare a dark patch, a well exposed patch, and one that clips at the sensor maximum.B. Filter a dense stripe pattern before reducing the sampled image to half width.C. If a known 10-millimeter span covers 100 pixels, 30 pixels correspond to about 3 millimeters under that same geometry.D. Compare a 20-pixel crop before and after enlarging it fourfold.

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Capture and Sampling

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