PPubMed6 May 2016Cited 4×

The Nature and Function of Digital Information Compression Mechanisms in the Brain and in Digital Television Technology

John Smythies, Maximilien d'Oreye de Lantremange

Abstract

This paper has made the case that there may be at least some similarities between brain mechanisms, and mechanisms used in information compression technologies in TV, relating to the existence and nature of the three information-processing pathways used in each. Important experimental evidence to support the existence of one type of information compression mechanism in the brain has been detailed. We suggest therefore that there are three main similarities between the brain's mechanisms and those used by digital TV 1. use of virtual reality mechanisms. 2. use of coding by removal of temporal r

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The paper argues that brain visual processing shares compression mechanisms with digital TV, highlighting similar three-channel pathways and evidence of difference encoding in V1.

What’s new

i.The paper compares human visual processing with digital television compression.
ii.It highlights experimental evidence of a low‑frequency difference‑encoding mechanism in V1.
iii.It identifies three analogous processing channels: color, motion, and object construction.
iv.It proposes that virtual‑reality mechanisms and temporal redundancy removal are shared between brain and TV.

How they did it

The authors performed a literature review of visual neuroscience and digital video compression, and analyzed the voltage‑sensitive dye imaging experiments of Nortmann et al. (2013) that showed frequency‑dependent encoding in V1.

What they found

Nortmann et al. found that at 33 Hz V1 encodes the current image, while at 10 Hz it encodes orientation differences between consecutive images.
A single UHDTV frame (7680 × 4320) contains the equivalent information of about 100 SDTV frames (780 × 420).

Caveats

✕The existence of motion‑vector–like mechanisms in the brain remains unknown.
✕The hypothesis needs direct experimental testing beyond the V1 difference‑encoding study.
✕Differences in electrical coding and physical substrate between brain and TV limit direct analogy.

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