FOVto focal length

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However, vendors are working on expanding the FOV capabilities of VR headsets. In early 2019, Pimax should be delivering its 8K and 5K+ VR headsets to backers of its Kickstarter campaign. Both HMDs have a FOV of 200 degrees (we got a glimpse of this tech in our review of a pre-production 5K+). And rumor has it Valve is working on its own VR headset with a 135-degree FOV.

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The gut and liver are recognized to mutually communicate through the biliary tract, portal vein, and systemic circulation. However, it remains unclear how this gut-liver axis regulates intestinal physiology. Through hepatectomy and transcriptomic and proteomic profiling, we identified pigment epithelium-derived factor (PEDF), a liver-derived soluble Wnt inhibitor, which restrains intestinal stem cell (ISC) hyperproliferation to maintain gut homeostasis by suppressing the Wnt/β-catenin signaling pathway. Furthermore, we found that microbial danger signals resulting from intestinal inflammation can be sensed by the liver, leading to the repression of PEDF production through peroxisome proliferator-activated receptor-α (PPARα). This repression liberates ISC proliferation to accelerate tissue repair in the gut. Additionally, treating mice with fenofibrate, a clinical PPARα agonist used for hypolipidemia, enhances colitis susceptibility due to PEDF activity. Therefore, we have identified a distinct role for PEDF in calibrating ISC expansion for intestinal homeostasis through reciprocal interactions between the gut and liver.

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Field of view

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fov和焦距的关系

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FOV

FOV stands for field of view, or field of vision. This is the range of what a user can see. For example, your FOV in a video game is how much of a given level you can see on your screen at once. Meanwhile, your FOV when wearing a VR headset determines how much of the landscape ahead of you is visible when you’re wearing the headset.

fov计算

Some of the best VR headsets, like the HTC Vive Pro and Samsung HMD Odyssey have a FOV of 110 degrees. The Oculus Rift and the lower-priced standalone HMD (head-mounted display, same thing as a headset) Oculus Go have an FOV of about 100 degrees.

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Scharon Harding has a special affinity for gaming peripherals (especially monitors), laptops and virtual reality. Previously, she covered business technology, including hardware, software, cyber security, cloud and other IT happenings, at Channelnomics, with bylines at CRN UK.

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