augmented-reality

问题 I'm using the Google Cardboard (its HeadTracker class) to detect certain things about device rotation in an AR application. It works very well. However, on some devices, it doesn't work (nothing happens). I assume this is because they don't have the necessary sensors. My questions: 1) I want to detect at runtime whether the current device supports the HeadTracker, i.e. it has the necessary sensors available. For this, I need to know which sensors are used by HeadTracker, so that I can query

问题 I am using the iPhone X and ARFaceKit to capture the user's face. The goal is to texture the face mesh with the user's image. I'm only looking at a single frame (an ARFrame ) from the AR session. From ARFaceGeometry , I have a set of vertices that describe the face. I make a jpeg representation of the current frame's capturedImage . I then want to find the texture coordinates that map the created jpeg onto the mesh vertices. I want to: 1. map the vertices from model space to world space; 2.

问题 I'm trying to develop a mini "Around Me" like using camera, compass and location. I would like to display place's images on my screen. For the moment I have my location and my orientation with compass. I would like to know how can I determine the position of the place I want to display. Thanks for your help ;) 回答1: Once you have relative distance and bearing, which you can determine from two points in the same coordinate space using algorithms found on this page, figuring out where a known

问题 I'm trying ARKit 1.5 with image recognition and, as we can read in the code of the sample project from Apple: Image anchors are not tracked after initial detection, so create an animation that limits the duration for which the plane visualization appears. An ARImageAnchor doesn't have a center: vector_float3 like ARPlaneAnchor has, and I cannot find how I can track the detected image anchors. I would like to achieve something like in this video, that is, to have a fix image, button, label,

问题 I couldn't find any information if Apple's ARKit supports 3D object tracking (or even image tracking) like Vuforia does. I don't want to place a 3D model just anywhere in the world. Instead I want to detect a specific 3D object and place AR objects in front and on top of that object. Simple example: I want to track a specific toy car in the real world and add a spoiler on top of it in the AR scene. Can someone provide me information wether that is possible or not? 回答1: Update for iOS 12: In

问题 I'm investigating a couple of iOS/Android mobile apps for clients at the moment, that involve Augmented Reality: The ability to preview what a piece of their furniture would look like in your home A digital dressing room - preview what the clothes will look like in yourself We primarily use React Native to build mobile apps (one of the projects would be building the feature into an existing React Native app). Can anyone share their experience with React Native and AR? Share any links to

问题 in my app i want to use augmented reality to find places like family restaurants etc.. What i want to do is that when i start my app camera turned on and then i want to locate the places in the direction of the camera .for example i start the app and i m facing the east and phone keypad is facing towards me i.e west,then the places which are in east direction. i have written some code which starts the camera, please suggest any api available for this task and example and tutorial to do that

问题 I developed a simple ARKit app in Unity for iOS. It works great, but there is a strange problem: after several days it stops working. So when I click on the app icon on the iPhone, it opens the app for a millisecond and instantly quits. If I reinstall the app again it works perfectly as before. Why is it happening? Is there any way to prevent it? I use "Personal team" in Xcode, can it be the reason? Thank you in advance! 回答1: Unlike in Android, you can’t install any app on an iOS device. It

问题 Hello everyone I'm trying to unzip a USDZ file, modify a texture, and then zip the USDZ file again, but it breaks. Is there any special way to zip the file back? Even if I decompress and compress again it stops working and has different file size. I'm using no compression and no encryption to zip the file. One thing I have noticed is that the attribute "Needed to extract" for the USDZ file is "2.0 or later" while my new zip file value is "1.0 or later". Also the files in the original USDZ zip

问题 I have a problem and I can't find a solution. I have made an Android augmented reality app. In my app I have a list of points of interest, every point of interest as a location(longitude, latitude, altitude). I know my position and I have the azimuth (of camera). Now my question is: how can I draw those points (gps points) on the screen(x, y points)? 回答1: i couldn't got what you are exactly trying do draw,but i assume you are trying to draw those poi on camera screen something like this: .