QuotePrevious setups for quantum ghost imaging were not capable of 3D imaging because they relied on intensified charge-coupled device (ICCD) cameras. Although these cameras have good spatial resolution, they are time-gated and don't allow the independent temporal detection of single photons.
To solve this problem, the researchers developed a setup based on new single photon avalanche diode (SPAD) arrays developed for LiDAR and medical imaging. These detectors have multiple independent pixels with dedicated timing circuitry, which allows them to record the detection time of every pixel with picosecond resolution.
The new approach uses two entangled photons — a signal and an idler — to obtain 3D images with single photon illumination. This involves directing the idler photons onto the object and then detecting the backscattered photons in time. Meanwhile, the signal photons are directed to a dedicated camera that detects as many photons as possible in both time and space. The researchers then compared the time of detection of every pixel with the detection of the single-pixel detector to reconstruct the entanglement. This also allowed them to determine the time of flight of the interacting idler photons, and with that, the depth of the object.
QuoteABSTRACT Computational ghost imaging (CGI) is a method of acquiring object information by measuring
light field intensity, which would be used to achieve imaging in a complicated environment. The main issue
to be addressed in CGI technology is how to achieve rapid and high-quality imaging while assuring the secure
transmission of detection data in practical distant imaging applications. In order to address the mentioned
issues, this paper proposes a remote secure CGI method based on quantum communication technology.
Using the quantum key distribution (QKD) network, the CGI system can be reconstructed while solving the
problem of information security transmission between the detector and the reconstructed computing device.
By exploring the influence of different random measurement matrices on the quality of image reconstruction,
it is found that the randomness of the numerical sequence constituting the matrix is positively correlated
with the imaging quality. Based on this discovery, a new type of quantum cryptography measurement
matrix is constructed using quantum cryptography with good randomness. In addition, through further
orthogonalization and normalization of the matrix, the matrix has both good randomness and orthogonality,
and high-quality imaging results can be obtained at a low sampling rate. The feasibility and effectiveness of
the method are verified by simulation imaging experiments. Compared with the traditional GI system, the
method proposed in this paper has higher transmission security and high-quality imaging under this premise,
which provides a new idea for the practical development of CGI technology
Quote from: karl 12 on January 23, 2024, 06:38:35 PM
Following the recent announcement that internet 'trolls' could face jail time for posting content that causes 'psychological harm'..
QuoteTrolls will be jailed for 'psychological harm'
Trolls could face two years in prison for sending messages or posting content that causes psychological harm under legislation targeting online hate.
link
QuoteYES, There Is A Government Troll Training Program.
Harvard Law Professor Cass Sunstein, a close Obama adviser and the White House's former head of the Office of Information and Regulatory Affairs, wrote a controversial paper in 2008 proposing that the US government employ teams of covert agents and pseudo-"independent" advocates to "cognitively infiltrate" online groups and websites, as well as other activist groups.
Sunstein also proposed sending covert agents into "chat rooms, online social networks, or even real-space groups" which spread what he views as false and damaging "conspiracy theories" about the government.
QuoteThe Gentleperson's Guide to Forum Spies
COINTELPRO Techniques for dilution, misdirection and control of a internet forum..
There are several techniques for the control and manipulation of a internet forum no matter what, or who is on it. We will go over each technique and demonstrate that only a minimal number of operatives can be used to eventually and effectively gain a control of a 'uncontrolled forum.'
• Technique #1 – 'FORUM SLIDING'
• Technique #2 – 'CONSENSUS CRACKING'
•Technique #3 – 'TOPIC DILUTION'
• Technique #4 – 'INFORMATION COLLECTION'
•Technique #5 – 'ANGER TROLLING'
• Technique #6 – 'GAINING FULL CONTROL'
Full List
Quote
In the first week of November 1957, a series of dramatic and unusual UFO events occurred which caused great concern at the highest levels of government and changed the way many people viewed the UFO phenomenon.
Sputnik 1 had been launched one month earlier, and the launch of Sputnik 2 was imminent. Then, in the first week of November 1957, a dramatic wave of UFO encounters struck the states of Texas and New Mexico. The apparent primary target was a small town called Levelland.
What happened in Levelland, Texas was unprecedented and had never occurred before, and has yet to be repeated. Dozens of people in Levelland and the surrounding areas reported UFOs disabling their vehicles, causing the electrical system to fail and the car engines to cease functioning.
In case after case, UFOs buzzed cars at low level, and often landed on the road, blocking their way forward. UFO car-stalling cases were well-known among UFO researchers, but this brazen and audacious level of activity had never been reported before.
While the small town of Levelland, Texas and the surrounding area first appeared to be the target, the truth was much different. In fact, similar and often identical encounters occurred across the United States and the world, involving not only car-stalling cases, but many bizarre electromagnetic effects on a wide variety of machines.
UFO researchers had long known that UFOs cause these strange effects, but had considered them an accidental byproduct of close-up UFO sightings. But after what happened in Levelland, questions began to be raised. Perhaps these effects weren't accidental at all. Perhaps they were intentional.
The U.S. government and Project Blue Book officials first attempted to debunk and cover-up the events, claiming that sightings were nothing more than "ball lightning," while at the same time, warning military and civilian witnesses not to speak to the press. But it wasn't ball lightning. The sightings were too dramatic to ignore, and soon garnered national headlines.
The Levelland UFO encounters have never been explained and remain a mystery to this day. Nothing like them has ever occurred before or since. This amazing event was easily the most famous UFO event of the year, and is well known among researchers.
However, what many people don't know is just how numerous, dramatic and widespread the encounters actually were, or the consequences that followed. This video presents a minute-by-minute account of this incredible week in November 1957
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