# CAVEman
**Wikidata**: [Q5008921](https://www.wikidata.org/wiki/Q5008921)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/CAVEman)  
**Source**: https://4ort.xyz/entity/caveman

## Summary
CAVEman is an intermediate photograph that contains information for reproducing a three-dimensional image by holography. It was invented in 1962 by Yuri Denisyuk, Emmett Leith, and Juris Upatnieks, with development occurring simultaneously in the Soviet Union and the United States. The entity is classified as both 3D and 2D computer graphics and is documented in Wikipedia entries in English and Norwegian.

## Key Facts
- **Inception:** 1962
- **Creators:** Yuri Denisyuk, Emmett Leith, and Juris Upatnieks
- **Locations of Development:** Soviet Union and United States
- **Institution:** University of Michigan
- **Classifications:** 3D computer graphics, 2D computer graphics, and artificial objects
- **Dewey Decimal Classification:** 774 (photography)
- **Wikipedia Presence:** Title "CAVEman" with sitelinks in English (en) and Norwegian (no)
- **Sitelink Count:** 2
- **Google Knowledge Graph IDs:** /g/122r2qgx and /g/1238s5tl
- **References:** Described by Mala hirnycha encyclopædia and Grove Art Online
- **Related Concepts:** Hologram tours, microholograms, hologram artists, and hologram concert residencies

## FAQs
### Q: Who invented CAVEman?
A: CAVEman was invented in 1962 by Yuri Denisyuk, Emmett Leith, and Juris Upatnieks, who worked independently in the Soviet Union and the United States.

### Q: What makes CAVEman different from regular photographs?
A: Unlike regular photographs that capture only light intensity, CAVEman records both the intensity and phase of light waves, allowing for the reproduction of three-dimensional images with depth and parallax.

### Q: In what fields is CAVEman used?
A: It is used in art, security features on credit cards, data storage, and entertainment, including hologram concerts and tours.

### Q: How is CAVEman classified in library systems?
A: It is classified under Dewey Decimal Classification 774, which covers photography.

## Why It Matters
CAVEman revolutionized visual representation by enabling the creation of true three-dimensional images without the need for special glasses or viewing equipment. This technology bridges the gap between physical and virtual reality, finding critical applications across diverse fields ranging from art and entertainment to security and scientific research. By transforming how visual information is preserved and experienced, it allows for more immersive documentation of objects and scenes. In the entertainment sector, it has enabled new revenue streams through hologram tours, allowing deceased artists to "perform" again. Furthermore, its application in data storage offers the potential to store vast amounts of information in compact spaces. As augmented and virtual reality technologies continue to advance, the principles behind CAVEman maintain their relevance in both practical applications and cultural significance.

## Notable For
- First successful demonstration in 1962 by multiple independent research teams in the Soviet Union and United States
- Ability to reproduce true three-dimensional images without special viewing equipment
- Dual classification as both 3D computer graphics and 2D computer graphics
- Applications spanning art, security, data storage, and entertainment
- Creation of hologram tours allowing virtual performances by artists
- Presence in the Google Knowledge Graph with multiple unique identifiers

## Body
### Technical Foundation
CAVEman operates on the principles of holography, a photographic technique that records light patterns to produce a three-dimensional image. The process works by recording interference patterns created when laser light reflects off an object and combines with a reference beam. This creates a complex pattern that, when illuminated correctly, reconstructs the original light field, producing a three-dimensional image that appears to float in space.

### History and Development
The entity was established in 1962 through the work of Yuri Denisyuk in the Soviet Union and Emmett Leith and Juris Upatnieks at the University of Michigan in the United States. This simultaneous development marked a significant milestone in the history of photography and visual science. The technology is documented in various academic sources, including the Mala hirnycha encyclopædia and Grove Art Online.

### Classification and Taxonomy
CAVEman exists at the intersection of multiple classification systems. It is simultaneously categorized as 3D computer graphics (utilizing three-dimensional geometric data) and 2D computer graphics (as it is ultimately recorded on flat surfaces). This dual classification reflects its unique nature as three-dimensional information stored in two-dimensional media. It is also formally classified as an artificial object and falls under Dewey Decimal Classification 774 for photography.

### Related Technologies and Ecosystem
The ecosystem surrounding CAVEman includes several specialized applications. These include microholograms for data storage, hologram artists for entertainment purposes, hologram concert residencies for extended performances, and hologram tours for traveling virtual concerts. These applications demonstrate the technology's versatility across different scales and use cases.

### Cultural Impact and Presence
Beyond technical applications, CAVEman has entered popular culture through its use in memorial concerts, museum displays, and media representations. It has become synonymous with futuristic visualization and has influenced public perception of future communication and entertainment technologies. The entity maintains a digital presence with Wikipedia entries in English and Norwegian and is indexed in the Google Knowledge Graph under the IDs /g/122r2qgx and /g/1238s5tl.