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visual hallucination

visual hallucination

7.5
An image made by a computer that looks real but is not based on real data
  • noun
  • /ˈvɪʒuəl həlʊˈsɪneɪʃən/
  • Jargon
translation icon : alucinación visual
  • The art-generation model produced a visual hallucination that looked convincing but wasn't grounded in any training data.

Examples

  • Users complained the new filter kept showing visual hallucinations of objects that never existed in the photo.

  • The AI generated a visual hallucination that looked incredibly realistic.

  • Researchers measure how often a vision system creates visual hallucinations when asked to imagine unfamiliar scenes.

  • Researchers are studying visual hallucinations produced by neural networks.

  • The researchers noted that the AI model frequently produces a visual hallucination that seems real but is entirely fabricated.

  • After analyzing the outputs, they discovered that the visual hallucinations generated by the program often included details that were not based on actual images.

  • Critics argued that the tool generated visual hallucinations which misled users into believing the nonexistent artifacts were accurate representations.

Synonyms

illusion
vsvisual hallucination
319 4.6

A false idea or appearance that makes you think something is true

is an image output from a model rather than a general misperception
phantasm
vsvisual hallucination
  • Literature
4 9.9

A thing that seems real but is only in the mind, like a ghost

is a model generated image that seems real but is fabricated
hallucination
vsvisual hallucination
  • Specialized
1 8.1

A false fact a computer makes that looks real

is limited to images produced by models rather than general false information

How Accurate

reproductivity
  • Specialized
7.2
visual hallucination
  • Jargon
7.5

Surface Forms

Morphology

visual + hallucination

The sense 'an image that appears real but is fabricated or not grounded' is directly and compositionally derived from 'visual' (pertaining to sight) modifying 'hallucination' (a false or illusory perception), so a learner who knows both words can infer the meaning. Even in the AI-specific usage the extension is straightforward (a sight-related false output), and this compositional pattern is cross-linguistically common, making it immediately comprehensible to B1 learners.

Etymology

Visual hallucination in computer systems uses the same image: visual, 'seeing', and hallucination, a made-up picture, but here the maker is a machine rather than a mind. Think of a photo program that adds an object that was never there; that's why it means 'an image a model creates that looks real but is false'.