▲ Yoo Hyeong-gon, Head of Mobiltech Headquarters (right)

2022 Automotive Tech Concert Viewer Q&A
"Our goal is to provide real-time updates using various transportation facilities."

To enable AI to make decisions and learn quickly and accurately, Mobiltech said it synchronizes sensors to the exact time and fuses data through calibration.

On the 28th, Yoo Hyeong-gon, head of Mobiltech, answered questions that could not be answered due to time constraints during his presentation on “3D spatial information update and utilization technology for realizing realistic smart cities” at the 2022 e4ds Automotive Tech Concert.

■ What are the conditions necessary to ensure that mobility and artificial intelligence can be used in a complementary manner and create synergy effects?

Based on what Mobiltech aims to achieve, what mobility needs is AI to provide accurate and up-to-date data so that users can utilize it safely.

By synchronizing various sensors to the exact time, data is built, and through data fusion through calibration, artificial intelligence is built to make judgments and learn quickly and accurately.

■ Children are involved in implementing smart cities Smart transportation system that allows students to commute to and from school safely, including smart schools

Yes, that's right. Smart cities digitalize the environment in which we live and work, and represent, classify, and judge situations occurring in real time within it.

Additionally, the environment in which children live is also made safe for use within the smart city.

■ How do you select the data group to be collected? What are the criteria or selection methods to optimize to prevent unnecessary data from being collected?

Determine the target of data to be collected based on the goal.

Also, in this environment where we live, there are many different types of mobile technologies that build and acquire cities, but when the collecting vehicle is stationary, it does not acquire image data that takes up a lot of space, and the acquisition or not is optional.

■ I am curious about what technology is used to automatically extract and process map information with high precision.

A precision map is map data that has a three-dimensional coordinate system.

Basically, the map is created by merging GPS data and LiDAR data with high precision and is produced based on ground control points.

It also performs synchronization and calibration of different sensors.

Based on accurate data, 3D data analysis, classification, and fusion with acquired camera data are performed to automatically extract, process, and inspect.

■ Currently, navigation companies or navigation map companies use vehicles to collect data and images to create maps, but Mobiltech What is the difference

Existing navigation companies are based on 2D image data rather than 3D data.

Although this data is not too difficult for humans to use, Mobiltech relies on more accurate data, such as lane information, location, and height, to operate autonomous vehicles and platforms.

■ What are the important considerations when reconstructing 3D images of overlapping and flat surfaces, such as spaces and buildings, to increase the precision and accuracy of digital twins?

When composing a photo into 3D, precision and accuracy can be increased if there is a lot of data by utilizing multiple survey points, but since it is converting a 2D image into 3D, there is bound to be a limit to the accuracy.

When taking pictures of a building with a drone and creating a 3D model, the top of the building appears well, but the data on the first floor (floor) is very inaccurate.

We are actually building a 3D space with lidar because the data we are going to use is pedestrian-based data.

■ What are the important factors to consider when trying to optimally detect roads, facilities, and objects?

I think it is an optimization through the fusion of various algorithms and data on various environments, angles, and backgrounds of the target object.

■ In the case of roads, frequent updates may be necessary as changes occur frequently due to various construction projects or government policies. How often is the update cycle?

Currently, it takes about one day for Mobiltech to be acquired, and about a week for the entire Gangnam District in Seoul.

Ultimately, we aim to provide real-time updates by utilizing various transportation facilities such as taxis and buses.