Visual Perception and Design (COMP7016)

Questions and Answers

Which feature allows for the preattentive detection of objects in a picture?

Unique features (correct)

Only shape

Shape and hue combination

Only hue

What type of search is required to detect a red circle when combined with distractors?

Preattentive search

Sequential search (correct)

Automatic search

Intuitive search

Which of the following features is NOT considered potential preattentive?

Hue

Flicker

Texture (correct)

Size

In which scenario can boundary detection be performed preattentively?

When each group contains one unique feature Signup and view all the answers

Which feature contributes to the difficulty of detecting items in a visual display?

Presence of distractors Signup and view all the answers

What aspect of visual perception does 'difference in shape' utilize for preattentive processing?

Single-feature detection Signup and view all the answers

Which of the following is an example of a depth cue that is considered potential preattentive?

Binocular lustre Signup and view all the answers

Why is it challenging to detect a blue square among other shapes with different colors?

Shape and color require a combination for detection Signup and view all the answers

What is one of the main topics covered in the module outline?

Gestalt Laws Signup and view all the answers

What is a common expectation students have for this subject?

To learn about visualisation tools Signup and view all the answers

What is one primary use of preattentive processing in visualization?

It can be used to draw attention to areas of interest. Signup and view all the answers

Which of the following is NOT mentioned as a focus area in the module outline?

Memory Recall Signup and view all the answers

Who is the subject coordinator and lecturer for the course?

Dr Zhonglin (Jolin) Qu Signup and view all the answers

What should be avoided for effective visual features in preattentive processing?

Utilizing conjunctions in visual representations. Signup and view all the answers

What was a common adjective used in the survey about the subject?

Hard Signup and view all the answers

What do the Gestalt principles primarily focus on?

Understanding pattern perception and holistic principles. Signup and view all the answers

Which statement describes the nature of perceptual processing according to Gestalt principles?

It operates as a holistic process influenced by previous experiences. Signup and view all the answers

What is one of the consultation hours provided for the subject?

Wednesday at 10:00 am Signup and view all the answers

What is the preferred contact method for Ms Zhonglin (Jolin) Qu?

Email Signup and view all the answers

How did the Gestalt school of psychology contribute to understanding perception?

By providing clear descriptions of basic perceptual phenomena. Signup and view all the answers

What topic is addressed under the challenges in visualisation?

Big Data Signup and view all the answers

What is defined as the measured amount of light per area?

Luminance Signup and view all the answers

Which type of colour blindness is most common?

Red-green blindness Signup and view all the answers

What perception is described as the perceived reflectance of a surface?

Lightness Signup and view all the answers

How does brightness contrast affect perceived brightness?

It is relative to its background. Signup and view all the answers

Which of these colour maps is considered a good option for visualizing geographical information?

GIST Earth Signup and view all the answers

What major trait influences the inheritance pattern of color blindness?

X-chromosomal recessive inheritance Signup and view all the answers

Which characteristic is NOT a trait of a good color map?

Simultaneous contrast issues Signup and view all the answers

What is the primary color model used for monitors?

RGB Signup and view all the answers

Which of the following describes 'brightness' in terms of visual perception?

The perceived amount of light Signup and view all the answers

Which of the following statements is true about additive and subtractive color models?

Additive color is used in digital displays, while subtractive color is used in printed materials. Signup and view all the answers

What is the recommended number of colors for effective nominal information coding?

7±2 Signup and view all the answers

Why is color vision considered irrelevant for certain aspects of normal vision?

It does not aid in layout perception of objects. Signup and view all the answers

Which color mapping should be avoided in quantitative data visualisation?

Rainbow color map Signup and view all the answers

When visualizing data, which method is recommended for distinguishing more than two data sets?

Utilize patterns alongside color. Signup and view all the answers

What does color break camouflage signify in a visual context?

Helps in identifying objects among distractions. Signup and view all the answers

Which color is not recommended for quantitative data representation?

Hue Signup and view all the answers

Study Notes

Course Overview

Subject: Visualisation (COMP7016)
Coordinator & Lecturer: Dr. Zhonglin (Jolin) Qu
Location: Room ER.G.19, Building ER, Parramatta South Campus
Preferred Contact: [email protected]
Consultation Hours: Wednesday 10:00-11:00 am
Tutors: Dr. Zhonglin Qu and Mr. Vishal Patel

Learning Objectives

Understand the significance of visualisation in the context of big data.
Explore challenges associated with visualisation techniques.
Differentiate between information visualisation and scientific visualisation.
Recognize qualities of good and bad visualisations based on set principles.

Key Modules

Perception and Cognition: Study of how visual perception influences understanding.
Human Vision: Mechanisms and limitations of human visual processing.
Colour Theory: Understanding additive and subtractive colour models.
Gestalt Laws: Explore principles governing how we perceive patterns and forms.
Visual Encoding: Techniques for representing data visually for clarity.

Colour Models

Additive Colour: Used in monitors; based on light combinations (RGB: Red, Green, Blue).
Subtractive Colour: Used in inks; relies on pigments absorbing light.

Colour Vision Insights

Colour vision is less critical for discerning object layouts, motions, and shapes.
It aids in breaking camouflage and conveying material properties.

Using Colour in Visualisation

Colour Labelling: Limit to 7±2 distinct colours for clarity; more than 10 can be confusing.
Quantitative Visualisation: Use of concrete values; avoid hue in representation—focus on saturation.

Recommended Colour Maps

Differences between various colour maps (Rainbow, Greyscale, Blackbody, etc.) highlight issues with perceptual ordering and contrast.

Colour Blindness

Affects 10% of males, 1% of females; most common form is red-green blindness.
Caused by lack of certain wavelength receptors.

Brightness and Luminance

Luminance: Actual amount of light.
Brightness: Perception of light intensity.
Lightness: Perceived reflectance of surfaces.

Visual Distinction Techniques

Preattentive Features: Rapid recognition of features like colour and shape before focused attention.
Objects can be detected quickly based on hue or shape, but combinations require sequential searches.

Gestalt Principles

Originated from German psychology; focus on holistic perception.
Gestalt Laws describe how we perceive patterns as integrated wholes rather than sums of parts.

Practical Applications

Preattentive processing can help in directing focus within visualisations to convey essential information effectively.
Special care needed to design visual cues to avoid confusion, particularly in conjunctions of features.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

This quiz covers essential concepts in visual perception and design as part of the COMP7016 course. It is focused on understanding how visual elements can influence perception and design principles. Enhance your knowledge and skills in visualisation techniques through this quiz.