optical illusion
C14759
concept
An optical illusion is a visual phenomenon in which the perception of an image differs from objective reality, often causing the viewer to see motion, depth, color, or shapes that are misleading or nonexistent.
All labels observed (10)
| Label | Occurrences |
|---|---|
| optical illusion canonical | 6 |
| impossible object | 2 |
| optical illusion artwork | 2 |
| visual effect | 2 |
| visual paradox | 2 |
| optical illusion attraction | 1 |
| perceptual illusion | 1 |
| perceptual phenomenon | 1 |
| visual perception | 1 |
| visual phenomenon | 1 |
Description generation (CDg)
The one-sentence description above was generated by prompting gpt-5.1 with the class name and this instruction.
Instruction
generate a one-sentence description for a given conceptual class. # Response Format Return only the sentence: "Description: [one-sentence description of the conceptional class]"
Input
Class: optical illusion
Generated description
An optical illusion is a visual phenomenon in which the perception of an image differs from objective reality, often causing the viewer to see motion, depth, color, or shapes that are misleading or nonexistent.
Instances (12)
| Instance | Via concept surface |
|---|---|
| Pepper's ghost | — |
| Kirby Krackle | visual effect |
| law of simultaneous contrast of colors | perceptual phenomenon |
| Penrose triangle | impossible object |
| Penrose stairs | impossible object |
| Magnetic Hill | — |
| Mirror maze | optical illusion attraction |
| Mach bands | — |
|
orange
surface form:
orange (color)
|
visual perception |
| Ascending and Descending | optical illusion artwork |
| Waterfall | optical illusion artwork |
|
Mach
surface form:
Mach bands
|
— |