Big in Korea

Location-based Virtual Reality for Automotive Design

In cooperation with Korean automotive design solutions provider AP-Solutions, we created a large location based virtual reality installation at the Hyundai research and development center close to Seoul, Korea. As described in the video above, the system is used to showcase, amend and modify prototype and production-ready automobile designs.

LPVR Large Room Scale Tracking Engine

The system uses optical tracking together with LP-Research’s LPVR solution to track up to 20 users wearing Vive Pro Head-mounted Displays (HMD). Each user will carry a Vive Hand controller for a total of 40 tracked objects in a space close to 400sqm.

Responsiveness is achieved by using LPVR solution which combines LPMS IMUs and a software package to achieve optimum performance. The optical system uses 36 infrared cameras to track the 160 markers attached to the HMDs and hand controllers. The position and orientation data of each user’s HMD is combined using LP-Research’s algorithm.

The content of the virtual space is rendered using a CAD software package running on backpack PCs worn by each of the 20 users. The PCs communicate and coordinate via a central server.

LPVR Middleware a Full Solution for AR / VR

Introducing LPVR Middleware

Building on the technology we developed for our IMU sensors and large scale VR tracking systems, we have created a full motion tracking and rendering pipeline for virtual reality (VR) and augmented reality (AR) applications.

The LPVR middleware is a full solution for AR / VR that enables headset manufacturers to easily create a state-of-the-art visualization pipeline customized to their product. Specifically our solution offers the following features:

  • Flexible zero-latency tracking adaptable to any combination of IMU and optical tracking
  • Rendering pipeline with motion prediction, late latching and asynchronous timewarp functionality
  • Calibration algorithms for optical parameters (lens distortion, optical see-through calibration)
  • Full integration in commonly used driver frameworks like OpenVR and OpenXR
  • Specific algorithms and tools to enable VR / AR in vehicles (car, plane etc.) or motion simulators
Overview of LPVR Middleware Functionality

Application of LPVR Middleware to In-Car VR / AR

The tracking backend of the LPVR middleware solution for VR and AR is especially advanced in the aspect that it allows the flexible combination of multiple optical systems and inertial measurement units (IMUs) for combined position and orientation tracking. Specifically it enables the de-coupling of the head motion of a user and the motion of a vehicle the user might be riding in, such as a car or airplane.

As shown in the illustration below, in this way the interior of a vehicle can be displayed as static relative to the user, while the scenery in the environment of the vehicle moves with vehicle motion.

Illustration of In-car VR Installation

For any application of augmented reality or virtual reality application in a moving vehicle, this functionality is essential to provide an immersive experience to the user. LP-Research is the industry leader for providing customized sensor fusion solutions for augmented and virtual reality.

If you have interest in this solution, please contact us to start discussing your applications case.

Contact us for further information.

LPMS Operator’s Manual Update

It’s been a long time, but finally we have updated our reference manual to the latest generation of sensors.

The manual is accessible through our documentation & support page or directly from here.

Below is a list of the most important updates, some of which are fixes that customers have asked for for quite a while:

  • Removed hardware specific parts. These are now covered in the quick start manuals.
  • Corrected scaling factors for all non-floating-point data transmission modes.
  • Corrected error in description of reset modes.
  • Moved to-be-deprecated LpSensor detail description to appendix.
  • Added list with APIs for direct sensor programming. OpenZen is to replace LpSensor.

iOS Support for LPMS-B2

LPMS-B2, besides Bluetooth classic, also supports Bluetooth 4 / Bluetooth Low Energy. This allows us to connect the sensor to Apple mobile devices such as the iPad, iPhone or the Apple watch. We recently have created a library that enables development of applications supporting LPMS-B2 on these devices.

The library can be accessed via our open source repository.

The repository contains a skeleton application that shows usage of the most basic parts of the library. The library itself is contained in the following files:

A sensor object is initialized and connected using the follwoing code:

More coming soon..

LPVR Manual & VIVE Pro Holder Prototype

LPVR Quick Start Guide

We have written a quick start guide for the LP VR system. The guide describes the assembly of the VIVE marker holder and the installation/usage of the LPVR SteamVR driver. The guide at the moment doesn’t contain information about the new VIVE Pro holder, but this will be added later.

Download the guide from here: LpvrGettingStarted20180402.pdf

VIVE Pro Sensor Holder

We have been working on the development of a optical marker/sensor holder for the VIVE Pro for a few weeks. It is not completely finished yet, but below is a photo of a prototype.

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