Row 32521
Content Data
This page contains data entry 32521 from the Axioma AXP content repository. The structured data below represents the complete record for this entry.
They're all on different parts of the electromagnetic spectrum. The same technology that translates X-ray backscatter into a coherent image can be used on other wavelengths, too. They seem to be using "X-ray" in the term of "remote sensing, deep-penetrating image" more than the precise term of what part of the EM spectrum most people encounter when they get that kind of image taken of them in an exam room.
*Generally* speaking, the higher the wavelength, the more precise/high-resolution the resulting backscatter will be, which is why X-rays are used for medical imaging (close look at fairly small things). But it's also not necessarily the best for seeing large things at a distance, like radar (or your eye, another EM sensor) are, for a variety of reasons. And a lot of sonar and lidar/EM sensor tech is best at detecting *density differences*, like when ice becomes rock or sky becomes a metal airframe. That "pops" in high contrast that's easy for software to identify.
Stupid framing of terms, but it looks like they used a commercial remote-sensing satellite (https://www.iceye.com/satellites/sar-systems). So I'm assuming the technology is mostly commercially available or a couple custom sensors, plus a bunch of data and image processing on the back end. Their end results are probably much more sound than Yahoo.com (or whoever they "borrowed" this content from) made it seem by dumbing it down for a broader audience.
| Field | Value |
|---|---|
| text | They're all on different parts of the electromagnetic spectrum. The same technology that translates X-ray backscatter into a coherent image can be used on other wavelengths, too. They seem to be using "X-ray" in the term of "remote sensing, deep-penetrating image" more than the precise term of what part of the EM spectrum most people encounter when they get that kind of image taken of them in an exam room. *Generally* speaking, the higher the wavelength, the more precise/high-resolution the re… |
| label | r/technology |
| dataType | comment |
| communityName | r/technology |
| datetime | 2024-05-21 |
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Raw Record
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"text": "They're all on different parts of the electromagnetic spectrum. The same technology that translates X-ray backscatter into a coherent image can be used on other wavelengths, too. They seem to be using \"X-ray\" in the term of \"remote sensing, deep-penetrating image\" more than the precise term of what part of the EM spectrum most people encounter when they get that kind of image taken of them in an exam room. \n\n*Generally* speaking, the higher the wavelength, the more precise/high-resolution the resulting backscatter will be, which is why X-rays are used for medical imaging (close look at fairly small things). But it's also not necessarily the best for seeing large things at a distance, like radar (or your eye, another EM sensor) are, for a variety of reasons. And a lot of sonar and lidar/EM sensor tech is best at detecting *density differences*, like when ice becomes rock or sky becomes a metal airframe. That \"pops\" in high contrast that's easy for software to identify.\n\nStupid framing of terms, but it looks like they used a commercial remote-sensing satellite (https://www.iceye.com/satellites/sar-systems). So I'm assuming the technology is mostly commercially available or a couple custom sensors, plus a bunch of data and image processing on the back end. Their end results are probably much more sound than Yahoo.com (or whoever they \"borrowed\" this content from) made it seem by dumbing it down for a broader audience.",
"label": "r/technology",
"dataType": "comment",
"communityName": "r/technology",
"datetime": "2024-05-21",
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}
Entry Information
- Entry ID: 32521
- Repository: Axioma AXP
- Dataset: arrmlet/reddit_dataset_36
- Total Entries: 100,000