Korea Institute of Science and Technology

Se Hyung Park

Deukhee Lee

Deuk Hee Lee

Lae Hyun Kim

Youngjun Kim

Young Jun Kim

Hyun Chul Cho

Sung Chul Kang

Sun Hee Kim

Sangjun Lee

Hyun Jeong Kim

Laehyun Kim

Jung-Woo Lee

Sung Hwan Lim

Sang Kyun Shin

Sunghwan Lim

Sangchul Hwang

Wan Joo Park

Seung Jae Shin

Embodiments relate to a method for tracking a location of a surgical tool based on a radiographic image, which includes: by a photography system, photographing a surgical tool having a physical marker frame composed of three or more marker bands; by an information processor, detecting a center point of each marker band in the photographed image; and by the information processor, estimating a three-dimensional location of the surgical tool based on a distance between the detected center point and a center point of a true marker band, and a tracking apparatus for the same.

Apparatus and method for tracking location of surgical tools in three dimension space based on two-dimensional image

A method for registering a tooth image with a tooth structure according to an embodiment includes a first registering step for registering a tooth image model obtained from a medical image taken when an object bites a bite including a marker with a bite scanning model obtained by scanning the bite, a second registering step for registering the bite scanning model with a tooth scanning model obtained by scanning a tooth shape of the object, and a third registering step for registering the tooth image model with the tooth scanning model based on the results of the first registering step and the results of the second registering step. As a result, a model including an accurate shape of tooth part difficult to obtain from a medical imaging apparatus can be easily obtained.

Method, apparatus and program for selective registration three-dimensional tooth image data to optical scanning tooth model

Disclosed is a method for forming a three-dimensional (3D) model of skin and mandible by automatic medical image segmentation which is performed in an automatic image segmentation and model formation server. The method includes (a) receiving 3D medical image data that is a set of two-dimensional (2D) images for horizontal planes of a face, (b) obtaining a contrast histogram based on distribution of contrasts of the 3D medical image data, and segmenting the 3D medical image data for the face into multiple regions separated into at least one partial region based on the contrast histogram, (c) extracting only the face by removing portions other than the face from the multiple regions for the face, and extracting a skin region of the face, (d) extracting the mandible from each of the 2D images for the horizontal planes of the face through a 2D detailed segmentation technique using an active contour method based on a level set function, and (e) reconstructing the extracted skin region and mandible as the 3D model.

Method for forming 3D maxillofacial model by automatically segmenting medical image, automatic image segmentation and model formation server performing the same, and storage medium storing the same

A system for non-invasive registration between a patient and a three-dimensional (3D) medical image includes a near infrared 3D camerawhich extracts a 3D blood vessel image I2 of a patients registration target area during surgical operation; a camera position tracerwhich traces a position of the near infrared 3D cameraand calculates a real world coordinate system of the 3D blood vessel image I2; a controllerwhich extracts a first blood vessel pattern from a 3D medical image I1 of the registration target area, extracts a second blood vessel pattern from the 3D blood vessel image I2, and performs position registration between the patient and the 3D medical image I1 through the extracted first and second blood vessel patterns; and a displaywhich displays a registration result calculated by the controller

System and method for non-invasive patient-image registration

A visualization apparatus for the vein according to the present disclosure includes a near-infrared ray irradiating unit for irradiating near-infrared rays below the skin of a target area, an infrared camera unit for photographing the target area, an image processing unit for receiving and processing image information of a portion below the skin of the target area, photographed by the infrared camera unit, and providing the processed image information to a display device, and a display device located near the target area to display the image information provided from the image processing unit.

Visualization apparatus for vein

Provided is an injection simulation system and method. The system includes a syringe comprising an injection needle, a haptic unit which measures an insertion angle and insertion depth of the injection needle, and which comprises a motor unit that is driven by a haptic force corresponding to the measured insertion angle and insertion depth. The system also includes a control unit which calculates the haptic force corresponding to the insertion angle and the insertion depth, and transmits the calculated haptic force to the motor unit of the haptic unit.

Injection simulation system and method

The 3-dimensional tracking system according to the present disclosure includes: a photographing unit for photographing an object; a recognizing unit for recognizing a marker attached to the object by binarizing an image of the object photographed by the photographing unit; an extracting unit for extracting a 2-dimensional coordinate of the marker recognized by the recognizing unit; and a calculating unit for calculating a 3-dimensional coordinate from the 2-dimensional coordinate of the marker by using an intrinsic parameter of the photographing unit.

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Seoul, South Korea

Se Hyung Park