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

Adjusts the camera aperture for ambient lighting

Answer

Compresses image data for faster network transmission

Answer

Converts color images to grayscale for processing

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

Measuring the electromagnetic spectrum of part colors

Answer

Providing real-time thermal imaging of the robot arm

Answer

Transmitting commands to the robot controller wirelessly

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

Detects random noise artifacts in the camera sensor

Answer

Measures the distance between the camera and a target

Answer

Compares images to a CAD model of the part

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

RS-232 serial

Answer

Modbus RTU

Answer

CAN bus

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 maximum frame rate the camera can achieve

Answer

The color depth of the captured image

Answer

The lens focal length in millimeters

Question 6

What is the advantage of using a 3D time-of-flight (ToF) camera over a 2D camera in a robotic bin-picking application?

Accepted Answer

It provides depth information for each pixel without requiring structured light projection

Answer

It offers higher pixel resolution than area-scan cameras

Answer

It operates only in the visible light spectrum

Answer

It eliminates the need for lighting in the work cell

Question 7

Why is consistent, controlled lighting critical in a robotic machine vision application?

Accepted Answer

It ensures repeatable image contrast so the vision algorithm produces reliable results regardless of ambient conditions

Answer

It allows the camera to operate at a lower frame rate

Answer

It increases the pixel resolution of the sensor

Answer

It reduces the need for camera calibration