CRS Sensors, I/O & Vision Systems 2

Question 1

In machine vision for robotics, what does the term 'calibration' primarily accomplish?

Accepted Answer

Maps pixel coordinates to real-world physical coordinates

Answer

Camera calibration determines the intrinsic and extrinsic parameters that allow the system to translate pixel locations in an image into accurate X-Y-Z positions in the robot's working frame.

Question 2

What is a structured light 3D scanner used for in a robotic work cell?

Accepted Answer

Capturing dense 3D point clouds of part surfaces for bin picking or inspection

Answer

Structured light scanners project known light patterns onto a surface and use camera-based triangulation to reconstruct a high-density 3D model of the object for tasks like bin picking and dimensional inspection.

Question 3

What does 'blob detection' accomplish in a robotic machine vision system?

Accepted Answer

Identifies and measures connected regions of similar pixel intensity in an image

Answer

Blob detection segments an image into regions of uniform brightness or color and extracts properties such as area, centroid, and orientation, which the robot uses to locate and pick parts.

Question 4

Which communication interface is most commonly used to connect industrial area-scan cameras to a robot's vision processor?

Accepted Answer

GigE Vision (Gigabit Ethernet)

Answer

GigE Vision is the dominant standard for industrial cameras, providing high-bandwidth image streaming over standard Ethernet with a standardized GenICam control interface.

Question 5

In a 2D machine vision system, what does the 'field of view' (FOV) determine?

Accepted Answer

The physical area of the scene captured by the camera at a given working distance

Answer

The field of view defines the actual physical dimensions (width × height) of the scene imaged at a specific working distance, directly affecting what portion of the workspace is visible to the robot.

CRS - Certified Robotic Specialist Practice Test

CRS - Certified Robotic Specialist Practice Test

CRS Sensors, I/O & Vision Systems 2