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A Video Screen That Is Also a Camera

Amazing : Researchers from ETH Zurich in Switzerland, however, managed to create a new type of pixel that can simultaneously do both. This hypercharged pixel, called a Fourier pixel, can generate and sense arbitrary light fields and tap into a pixel’s full potential for carrying information by manipulating light’s intensity, oscillation phases, and polarization. The team reported its findings in a paper published yesterday in Nature. We are one step closer to 1984 technology: The telescreen received and transmitted simultaneously. Any sound that Winston made, above the level of a very low whisper, would be picked up by it; moreover, so long as he remained within the field of vision which the metal plaque commanded, he could be seen as well as heard. There was of course no way of knowing whether you were being watched at any given moment...

2026-07-15 原文 →
AI 资讯

The DJI Osmo Pocket 3 lookalike is down to $329

Initially, I was going to tell you about a good deal happening on the DJI Osmo Pocket 3, which is down from the $500 it’s sold at most of the year to $378 at multiple retailers. But there’s a better deal happening on a nearly identical portable camera, the Xtra Muse, which is $329 (roughly […]

2026-07-06 原文 →
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This slim camera has a transparent LCD screen for a viewfinder

Despite the fact that smartphones have become impressively capable shooters, standalone point-and-shoot cameras are enjoying a renaissance. The tiny Kodak Charmera is still wildly popular, while influencers are scrambling to find aging Canon cameras on eBay. Godox, a company best known for its photography lighting products, is the latest to join the simple camera craze, […]

2026-07-03 原文 →
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Flock Cameras Can Surveil Cars Without License Plates

This is from a 2024 company presentation : Officers can also tap into data showing a car’s decals, bumper stickers, back and top racks—along with temporary and unique state tags. Flock calls it a “Vehicle Fingerprint” and it’s touted as a way for law enforcement officials to get more information “even when you don’t have full plate information,” the company’s presentation shows. The company gives police officers the ability to search that data as well, to “build stronger cases with less information upfront.” That includes being able to locate multiple vehicles law enforcement officials believe are moving together and what Flock calls a “multi geo search.”...

2026-07-03 原文 →
AI 资讯

The Realities of AI Video Surveillance

The Financial Times has a good article on how AI is changing the capabilities of video surveillance, with information from both Israel/Iran and Russia. I wrote about this sort of thing a few years ago, how AI enables mass spying in the way that computers and networks enabled mass surveillance. The interesting development in the article is that AI allows people to ask natural language questions about video footage to AIs—and AIs can answer them. In contrast with older tools restricted to a few dozen preset searches, these new tools allow an almost unlimited range of enquiries by enabling language-based searches on video...

2026-06-30 原文 →
AI 资讯

Leica’s $6,690 SL3-P pairs 44-megapixel stills with 8K video

Following the launch of the SL3 in 2024 and last year's SL3-S that was optimized for speed and capturing fast moving subjects, Leica announced the new SL3-P today delivering some of the best features from both of its predecessors. Like Leica's previous "P" variants, the new SL3-P lacks the brand's iconic and recognizable red dot […]

2026-06-25 原文 →