Object Classification
Object Classification - Related Videos
14:38
Creating Objects and Object Categories for Studying Perception and Perceptual Learning
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Cited by 12 •
2012
We describe a novel methodology for creating naturalistic 3-D objects and object categories with precisely defined feature variations. We use simulations of the biological processes of morphogenesis and phylogenesis to create novel, naturalistic virtual 3-D objects and object categories that can then be rendered as visual images or haptic objects.
10:14
Object Substitution Masking
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2023
Source: Laboratory of Jonathan Flombaum—Johns Hopkins University Visual masking is a term used by perceptual scientists to refer to a wide range of phenomena in which in an image is presented but not perceived by an observer because of the presentation of a second image. There are several different kinds of masking, many of them relatively intuitive and unsurprising. But one surprising and important type of masking is called Object Substitution Masking. It has been a focus of research in vision...
05:55
Multiple Object Tracking
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2023
Source: Laboratory of Jonathan Flombaum—Johns Hopkins University In a staggeringly complex and engaging world, it is crucial to selectively process some stimuli at the expense of others. Experimental psychologists call this ability attention. Specifically, visual attention refers to the ability to selectively process aspects of a visual scene. Many paradigms used to study visual attention involve brief, punctuated, and repeated trials. However, everyday situations often place sustained demands...
01:24
Communication Objectives
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2024
Communication objectives are crucial strategic goals in marketing, serving as the backbone for promotional activities. Clear communication objectives help marketers ensure that each piece of communication serves a specific purpose, enhancing the overall impact and efficiency of their marketing efforts. Communication objectives should be SMART: specific, measurable, achievable, relevant, and time-bound. They should align with marketing goals and support brand positioning, ensuring promotional...
01:18
Velocity of an Object
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2025
Understanding how an object moves along a path requires distinguishing between motion over a time span and motion at a precise moment. A useful example is a vehicle traveling along a straight and level path, where its position at any given time is known. The initial step in analyzing this motion is to measure how far the vehicle travels over a fixed time period. This measurement, called average velocity, is computed by dividing the total change in position by the duration over which the change...
FAQs
Bottom-up processing begins with sensory information, including shape, color, texture, and spatial structure. Top-down processing then contributes memory, attention, and prior experience, which help interpret incomplete or ambiguous input. Their interaction allows perception to combine currently available visual features with stored representations and contextual expectations rather than relying on sensory information alone.
Context and prior experience provide expectations that guide interpretation of visual input. A stored representation can make relevant features easier to recognize, while attention helps prioritize information needed for identification. These influences explain why the same perceptual features may support different classifications depending on the surrounding situation or an individual's previous experience.
The visual system combines multiple features rather than treating one property as sufficient. Shape, color, texture, and spatial structure contribute complementary information, while memory and contextual expectations help connect those features with a meaningful representation. Examining this combination helps psychologists study how perceptual information is organized into recognizable categories.
Recognition errors can arise when sensory features, stored representations, attention, or contextual expectations do not align. A person may emphasize some visual information while interpreting it through an unsuitable prior representation or expectation. Studying these errors gives psychologists a way to examine the limits and interactions of perceptual and cognitive processes.
Researchers can use object classification as a framework for examining how categorization changes across development. Comparing performance at different developmental stages helps reveal changes in visual feature processing, stored representations, attention, memory, and the use of contextual expectations. This work connects perceptual development with broader explanations of cognitive growth.
Category learning provides a way to investigate how people acquire or modify the categories used to interpret objects. It can be examined alongside visual feature processing, stored representations, and prior experience to determine how classification changes with learning. Findings contribute to psychological models of cognition and clarify how experience supports recognition.
In experimental psychology, object classification helps researchers connect visual perception with attention, memory, category learning, and recognition errors. In human-computer interaction, the same knowledge can inform how people interpret visually presented objects and categories. These applications make classification useful for linking psychological models with the design and evaluation of interactive systems.