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Questions tagged [fieldofview]

The Field of View (FOV) is the extend of the (for the observer) visible world

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How to calculate FOV?

Initial Context I am developping an augmented reality application location based and I need to get the field of view [FOV] (I just update the value when the orientation change, so I am looking for a method which can get this value when I call…
Humbertda
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three.js - check if object is still in view of the camera

When working with a 2d canvas, if you want to check if something is no longer "on screen" you simply do something like this: if( pos.x > window.innerWidth || pos.x < 0 || pos.y > window.innerHeight || pos.y < 0 ) { // has left the…
Nick Briz
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Relation between horizontal, vertical and diagonal Field-of-View

Is there a mathematical relation between those values? If I know hFOV and vFOV can I calculate the diagonal FOV without involving other values like focal lengths etc? My first thought was to use Pythagorean theorem but maybe it's wrong.
Shepard
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What is the correct field of view angle for human eye?

At the moment i use 45 degree angle for my gluPerspective(). Is this the correct angle to make the rendering look realistic in how humans perceive it? Also there is an issue with the window aspect ratio, for example 2:1 window will make 45 degree…
Rookie
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Accurate and current FieldOfView of AVCaptureDevice

From AVFoundation objects like AVCaptureDevice I can read a value of fieldOfView using captureDevice.activeFormat.videoFieldOfView And this gives me a value of about 58 degrees on iPhone 6s. But what I need is to get current value of actual…
Damian Dudycz
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iPhone SDK - get/calculate camera field of view (FOV) (Augmented Reality)

Is there a way to find out or calculate the field of view (FOV) an iPhone camera has through calls to the APIs? Or is it something you have to physically and manually find out for yourself? If it cannot be fetched or calculated with the APIs, but…
quano
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Field of view of a GoPro camera

I have calibrated my GoPro Hero 4 Black using Camera calibration toolbox for Matlab and calculated its fields of view and focal length using OpenCV's calibrationMatrixValues(). These, however, differ from GoPro's specifications. Istead of 118.2/69.5…
Milan Zelenka
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libGDX - perspective camera and field of view

I have problems to understand the field of view of the perspective camera in libGDX (or maybe my calculations are wrong). I want to draw a box (for example 800px wide, 480px high and 20px deep). The box is placed between x- and y-axis (in other…
Namenlos
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Computing FOVX (openGL)

When working with openGL perspectives I am not quite sure how to compute the fovx from the fovy. I read different things in different places and in I don't get the right behavior by using either method that I found. So can someone please tell me,…
Mike2012
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Is this a correct perspective FOV matrix?

I have a perspective FOV, but when rotating, it doesn't "look" correct - Farther objects traverse faster than closer objects, passing them in the middle of the screen. So: Is this correct? Using right-handed coordinates, if that matters? public…
Narf the Mouse
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Can I use homography to project camera image points to the ground (2D plane)?

My problem is quite simple yet I struggle to solve it correctly. I have a camera looking towards the ground and I know all the parameters of the shot. So, using some maths I was able to compute the 4 points defining the field of view of the camera…
Delgan
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What is the field of view for iPad 2 camera vs iPad 3 camera?

What is the angle of view (horizontally and vertically) of an iPad 2 camera (the one in the back)? The new iPad has a better camera, but is the angle of view much improved? Also is there a difference taking a picture and using the video in the field…
emiel187
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How to plot the field of view of an Earth-Observation satellite when close to the poles using basemap?

I am trying to draw the maximum (theoretical) field of view of a satellite along its orbit. I am using Basemap, on which I want to plot different positions along the orbit (with scatter), and I would like to add the whole field of view using the…
Flo
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WPF 3D - Fit ModelVisual3D into the camera's field of view?

I have a cuboid who's dimensions are imported from XML so i need to be sure that no matter what the size of the model, the camera can always see all of it. This is for preview purposes. I'll likely render a caption over the top showing the scale…
EightyOne Unite
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Magic Leap / WebRTC

I need to transmit via WebRTC the field of view of the magic Leap and not the external video camera of the ML. Does anyone know if there is anything actively from ML and WebRTC to solve this problem?
user15896307
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