A Pixel is Not a Little Square
E237521
"A Pixel is Not a Little Square" is a well-known essay by computer graphics pioneer Alvy Ray Smith that clarifies the true mathematical and perceptual nature of pixels in digital imaging.
All labels observed (1)
| Label | Occurrences |
|---|---|
| A Pixel is Not a Little Square canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2139754 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: A Pixel is Not a Little Square Context triple: [Alvy Ray Smith, notableWork, A Pixel is Not a Little Square]
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A.
ImageWorks: The What-If Labs
ImageWorks: The What-If Labs is an interactive, hands-on exhibit at Epcot where guests can explore creativity and sensory illusions through playful, imaginative experiments.
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B.
PIXL
PIXL is a highly sensitive X-ray fluorescence spectrometer on NASA's Perseverance rover used to analyze the elemental composition of Martian rocks and soil at microscopic scales.
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C.
Learning from Las Vegas
Learning from Las Vegas is an influential architectural theory book by Robert Venturi, Denise Scott Brown, and Steven Izenour that helped define postmodern architecture by championing the symbolism and vernacular of commercial landscapes like the Las Vegas Strip.
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D.
Fundamentals of Interactive Computer Graphics
Fundamentals of Interactive Computer Graphics is a foundational textbook that introduces the principles, algorithms, and techniques underlying modern computer graphics and interactive visual systems.
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E.
Design, Form, and Chaos
"Design, Form, and Chaos" is a seminal book by graphic designer Paul Rand that explores his philosophy, methods, and influential work in modern visual communication.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: A Pixel is Not a Little Square Target entity description: "A Pixel is Not a Little Square" is a well-known essay by computer graphics pioneer Alvy Ray Smith that clarifies the true mathematical and perceptual nature of pixels in digital imaging.
-
A.
ImageWorks: The What-If Labs
ImageWorks: The What-If Labs is an interactive, hands-on exhibit at Epcot where guests can explore creativity and sensory illusions through playful, imaginative experiments.
-
B.
Pixels
Pixels is a 2015 science fiction comedy film in which classic video game characters attack Earth, prompting former arcade champions to defend the planet.
-
C.
PIXL
PIXL is a highly sensitive X-ray fluorescence spectrometer on NASA's Perseverance rover used to analyze the elemental composition of Martian rocks and soil at microscopic scales.
-
D.
Learning from Las Vegas
Learning from Las Vegas is an influential architectural theory book by Robert Venturi, Denise Scott Brown, and Steven Izenour that helped define postmodern architecture by championing the symbolism and vernacular of commercial landscapes like the Las Vegas Strip.
-
E.
Fundamentals of Interactive Computer Graphics
Fundamentals of Interactive Computer Graphics is a foundational textbook that introduces the principles, algorithms, and techniques underlying modern computer graphics and interactive visual systems.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
essay
ⓘ
technical article ⓘ |
| arguesAgainst | idea that a pixel is a tiny square tile ⓘ |
| author | Alvy Ray Smith ⓘ |
| clarifies |
mathematical nature of pixels
ⓘ
perceptual nature of pixels ⓘ |
| emphasizes |
continuous underlying image model
ⓘ
importance of reconstruction in image display ⓘ pixels are point samples, not little squares ⓘ |
| explains |
a pixel is a sample of a continuous image
ⓘ
aliasing in digital images ⓘ difference between pixel grid and displayed shapes ⓘ relationship between pixels and reconstruction filters ⓘ relationship between pixels and sampling theory ⓘ resolution and sampling density ⓘ |
| field |
computer graphics
ⓘ
digital image representation ⓘ image processing ⓘ |
| hasFormat |
PDF
ⓘ
online article ⓘ |
| hasKeyConcept |
continuous image underlying discrete samples
ⓘ
distinction between mathematical model and physical display ⓘ pixel as a sample, not an area ⓘ role of the display device in forming visible squares ⓘ |
| hasLanguage | English ⓘ |
| influenced |
best practices in digital image processing explanations
ⓘ
educational material on computer graphics ⓘ |
| isWellKnownFor |
correcting misconceptions about pixels
ⓘ
influencing how graphics practitioners think about resolution ⓘ |
| mainSubject |
computer graphics
ⓘ
digital imaging ⓘ pixels ⓘ |
| relatedTo |
Nyquist–Shannon sampling theorem
ⓘ
linked to:
Nyquist theorem
antialiasing ⓘ display technology ⓘ image reconstruction filters ⓘ raster graphics ⓘ resolution misconceptions ⓘ sampling theory ⓘ |
| targetAudience |
computer graphics practitioners
ⓘ
digital imaging professionals ⓘ graphics researchers ⓘ students of computer graphics ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: A Pixel is Not a Little Square Description of subject: "A Pixel is Not a Little Square" is a well-known essay by computer graphics pioneer Alvy Ray Smith that clarifies the true mathematical and perceptual nature of pixels in digital imaging.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.