Electronics and Telecommunications Research Institute

Kyung-Kyu Kang

Dong-Wan Ryoo

Jae-Woo Kim

Chang-Joon Park

Chang-Woo Chu

Ji-Hyung Lee

Hye-Sun Kim

Jung-Jae Yu

Man-Hee Lee

Yun-Ji Ban

Jin-Seo Kim

Soon-Young Kwon

In-Su Jang

Song-Woo Lee

Ju-Yeon You

Disclosed herein are a method and apparatus for matching 3D terrain information based on aerial images captured at different altitudes. The method includes receiving a high-altitude numerical height model based on a terrain image captured at a specific high altitude; receiving 3D terrain information observed from a low altitude, which is generated based on a terrain image captured at an altitude lower than the specific high altitude; generating a low-altitude numerical height model by converting the 3D terrain information into a numerical model in the same form as the high-altitude numerical height model; measuring the cross-correlation between the high-altitude numerical height model and the low-altitude numerical height model, thereby calculating matching parameters for enabling the low-altitude numerical height model to match the high-altitude numerical height model; and adjusting the geospatial coordinates of the 3D terrain information based on the matching parameters and outputting georeferenced 3D terrain information in the same coordinate system as the high-altitude numerical height model.

Method and apparatus for matching 3-dimensional terrain information using heterogeneous altitude aerial images

Disclosed herein are an apparatus and method for reconstructing a 3D model. The apparatus for reconstructing a 3D model includes an image acquisition unit for acquiring multi-view images by receiving image signals captured by multiple drones using cameras, a geometric calibration unit for estimating motion variables of the drones based on the acquired multi-view images, and a 3D model creation unit for reconstructing a 3D model of a dynamic object from the matched multi-view images using a multi-view stereo method.

Apparatus for reconstructing 3D model and method for using the same

An apparatus and method for modeling a cultural heritage building, which may intuitively model a 3D digital cultural heritage building while exhibiting the characteristics of the 3D digital cultural heritage building, through the use of a touch screen UI on a smart mobile device in a place where it is difficult to use a PC or existing software. The disclosed apparatus includes a measured drawing arrangement unit for displaying, on a touch screen, measured drawings that include information about members constituting a cultural heritage building, a member model generation unit for performing modeling based on multiple points input via the touch screen, thus generating 3D member models, a database for storing the member models generated by the member model generation unit, and a member arrangement unit for arranging each of the stored member models at an original location thereof based on the measured drawings.

Apparatus and method for modeling cultural heritage building

An assembly simulation apparatus and method for a wooden structure are provided. The assembly simulation apparatus for a wooden structure includes an element analysis unit for analyzing shapes of a plurality of elements constituting a three-dimensional (3D) wooden structure model and a coupling relation between the elements. A relation graph generation unit generates a relation graph based on the analyzed shapes of the plurality of elements and the analyzed coupling relation between the elements. An animation creation unit creates an animation of a movement path depending on a task for coupling or separating the plurality of elements, based on the generated relation graph. An animation play unit simulates an assembly method for the wooden structure by playing the created animation depending on the assembly method for the wooden structure.

Assembly simulation apparatus and method for wooden structure

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Daejeon, South Korea

Kyung-Kyu Kang