Electronics and Telecommunications Research Institute

Korea Institute of Geoscience and Mineral Resources

Lotte Chemical Corporation

Jin Ho Kim

Ki Hong Kim

Gee Soo Kong

Moo Hee Kang

Young Ho Yoon

Kyong O Kim

Young Hee Kim

Kyu Jung Kim

Myung Joon Kim

Jung Jae Yu

Jong Sung Kim

Kyung Ae Moon

Jaehwan Kim

Jae-Hean Kim

Jae Hean Kim

Ho Wook Jang

Jong Hwa Chun

Gil Haeng Lee

Hye Mi Kim

Byoung Tae Choi

Hang Kee Kim

Il-Kwon Jeong

Jang Jun Bahk

Byong Jae Ryu

Hye-Mi Kim

Dae Hwan Kim

Young Sang Eo

Dong Sik Jo

Byung Hoon Lim

Young Ha Hwang

Young Kwan Park

Byoung Ok Jang

The present invention concerns a method of processing marine gravity data and a processing apparatus for the same. According to the present invention, the processing method comprises obtaining an initial free-air anomaly per profile from raw data; obtaining a filtered free-air anomaly by filtering high-frequency components from the initial free-air anomaly; shifting free-air anomaly by correcting the filtered free-air anomaly based on a reference free-air anomaly; and showing a per-profile free-air anomaly using the reference corrected free-air anomaly.

Method of processing a marine gravity data and a processing apparatus for the same

The present invention relates to a coring system and a determining method that can determine whether accurate coring was achieved. A coring system according to the present invention includes: a coring part with a core to be filled with an object to be cored; a driving unit controlling upward/downward movement of the coring part; a rope connecting the coring part with the driving unit; and a tensiometer measuring tension in the rope.

Coring system including tensiometer and method of deciding accurate coring using the same

Provided are an apparatus and method for tracking a camera that reconstructs a real environment in three dimensions by using reconstruction segments and a volumetric surface. The camera tracking apparatus using reconstruction segments and a volumetric surface includes a reconstruction segment division unit configured to divide three-dimensional space reconstruction segments extracted from an image acquired by a camera, a transformation matrix generation unit configured to generate a transformation matrix for at least one reconstruction segment among the reconstruction segments obtained by the reconstruction segment division unit, and a reconstruction segment connection unit configured to rotate or move the at least one reconstruction segment according to the transformation matrix generated by the reconstruction segment division unit and connect the rotated and moved reconstruction segment with another reconstruction segment.

Camera tracking apparatus and method using reconstruction segments and volumetric surface

Disclosed are a polycarbonate resin composition as a polycarbonate material for medical use having yellowing resistant property with respect to the irradiation of gamma-radiation, which exhibits extremely little yellowing during sterilizing using the gamma-radiation, maintains transparency and has no mechanical change, and a molded article using the same. The present invention provides a polycarbonate resin composition including a polycarbonate resin, a thioether-based stabilizer and an amide-based stabilizer, and a molded article using the same.

Polycarbonate resin composition with increased gamma-radiation resistant property and molded article using the same

Provided are an apparatus and method for detecting a plurality of arms and hands by using a three-dimensional (3D) image. The apparatus includes an image input unit configured to acquire a 3D image of an object, an arm detecting unit configured to detect one or more component-unit candidate regions of the object in the 3D image, and detect one or more arm regions by using arm detection feature information, extracted from each of the candidate regions, and a pattern recognition algorithm, and a hand detecting unit configured to calculate a position of a hand and a position of a wrist in each of the arm regions detected by the arm detecting unit, and detect a hand region by using the position of the hand and the position of the wrist.

Apparatus and method for detecting multiple arms and hands by using three-dimensional image

The present invention relates to a coring system considering a tilt of a coring part and a method of compensating for a depth of a coring part using the same. A coring system according to the present invention includes: a coring part with a core to be filled with an object to be cored; a driving unit controlling upward/downward movement of the coring part; a rope connecting the coring part with the driving unit; and a tilt meter measuring a tilt of the coring part.

Coring system considering tilting of coring part and method of compensating depth of coring part using the same

An apparatus for 3D reconstruction based on multiple GPUs and a method thereof are disclosed. The 3D reconstruction apparatus according to the present invention includes a 3D reconstruction apparatus, comprising: a camera configured to generate depth data for 3D space; a first GPU configured to update first TSDF volume data with first depth data generated for a first area and predict a surface point of an object which is present in the space from the first updated TSDF volume data; a second GPU configured to update second TSDF volume data with second depth data generated for a second area and predict a surface point of an object which is present in the space from the second updated TSDF volume data; and a master GPU configured to combine a surface point predicted from the first TSDF volume data and a surface point estimated from the second TSDF volume data.

Apparatus for 3D reconstruction based on multiple GPUS and method thereof

A method for restoration of building structure using infinity homographies calculated based on parallelograms includes: calculating, using two or more parallelograms, an infinity homography between those cameras which refer to an arbitrary camera; restoring cameras and the building structure on an affine space using the computed infinity homography and homologous points between images; and transforming the restored result onto the metric space using constraints on orthogonality of vectors joining the restored three-dimensional points, the ratio of lengths of the vectors and intrinsic camera parameters. As a result, intrinsic camera parameters, camera positions on the metric space and the structure of the building are restored. All the restoration is possible even when intrinsic camera parameters corresponding to all the images are not constant.

Method for restoration of building structure using infinity homographies calculated based on parallelograms

A method for calibrating a camera including (a) obtaining a two-dimensional (2D) homography that maps each of parallelograms projected onto two images taken by the camera into a rectangle, wherein the 2D homography is defined as a rectification homography and wherein new cameras that have virtual images are defined as rectified cameras and a new infinite homography is generated between the two rectified cameras, the virtual images being transformed from original images by the rectification homography; (b) obtaining an original infinite homography by using the correlations among the new infinite homography, the rectification homography and the original infinite homography; and (c) obtaining intrinsic camera parameters based on the correlation between the original infinite homography and the intrinsic camera parameters, thereby calibrating the camera.

Method and system for calibrating camera with rectification homography of imaged parallelogram

Provided is an apparatus for collecting marine deposits. The apparatus includes: a piston corer for collecting a deep part of marine deposits; a corer for collecting a surface part of marine deposits; and a trigger body connecting the corer for collecting a surface part of marine deposits and the piston corer for collecting a deep part of marine deposits to each other while being maintained at a laterally set interval. The apparatus for collecting marine deposits can greatly save costs consumed to collect marine deposits and increase accuracy of collecting the marine deposits.

Apparatus for collecting marine deposits

Disclosed is a method for embedding and extracting a spatial domain blind watermark using a sample expansion. The sample expansion method using a sample expansion coefficient is introduced to basically improve a common disadvantage of the conventional watermarking method based on the patchwork method, for instance, the watermark is not robust against a compression attack such as JPEG. By applying the sample expansion to a sample group, the embedded watermark comes to contain a low frequency component more larger than ever, so that radio frequency component decreases as much. Thus, although the radio frequency component of the watermark is damaged by the image compression such as JPEG, it is possible to relatively reduce the damage of the watermark. Also, an adaptive watermark embedding method can be considered such that the embedded watermark value is proportional to an average value of the pixel. In order to overcome non-robustness that is a common disadvantage of the conventional methods based on the conventional patchwork method or the conventional modified patchwork method, not a single pixel but sample-expanded pixel is chosen, and there is proposed a spatial domain blind watermarking method using a watermark value that is proportional to an average value of pixel every tile.

Method for embedding and extracting a spatial domain blind watermark using sample expansion

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Daejeon, South Korea

Jin Ho Kim