Abstract: A graphic processing unit (GPU) and method for decompressing compressed 3-dimensional (3D) compressed data. The GPU may extract segment information by analyzing a compressed data header and decompress segments included in a bit stream based on the segment information.

Abstract: A sampler of an image processing apparatus may sample at least one first virtual point light (VPL) from a direct light view. The sampler may sample a second VPL in a three-dimensional (3D) space independent of the direct light view. A calculator may calculate a luminance of the second VPL using a first VPL adjacent to the second VPL selected from among the at least one first VPL.

Abstract: An integrated circuit comprising an output driver including an output terminal, and a receiving circuit including a termination resistor connected between the output terminal and a ground. The output driver comprising a first NMOS transistor configured to pull up a voltage of the output terminal to a pull-up voltage in response to a pull-up signal, and a second NMOS transistor configured to pull down the output terminal to a ground voltage in response to a pull-down signal.

Abstract: An apparatus and method for encoding a 3D mesh, and an apparatus and method for decoding the 3D mesh are disclosed. The 3D mesh encoding apparatus may determine mesh information including position information of each of vertices constituting the 3D mesh, and connectivity information among the vertices, based on a level, and may progressively encode the determined mesh information based on the level, thereby reducing an error with an original 3D object when compared to an equal transmission rating.

Abstract: Provided is an image processing apparatus for performing photon mapping, and the image processing apparatus may perform ray tracing for photon mapping, sample a ray space based on a result of the ray tracing, and perform pseudo photon mapping using the sampled ray space.

Abstract: An apparatus and method for encoding a 3D mesh, and an apparatus and method for decoding the 3D mesh are disclosed. The 3D mesh encoding apparatus may determine mesh information including position information of each of vertices constituting the 3D mesh, and connectivity information among the vertices, based on a level, and may progressively encode the determined mesh information based on the level, thereby reducing an error with an original 3D object when compared to an equal transmission rating.

Abstract: An apparatus and method for forming a light field image includes projecting vertices of a graphic object to a far plane corresponding to a first distance directed to a screen reproducing a light field, and forming the light field image with respect to the graphic object using the vertices projected to the far plane.

Abstract: Disclosed is a three-dimensional (3D) mesh compression apparatus and method. The 3D mesh compression apparatus may generate a base mesh through a mesh simplification, may separately compress the base mesh and vertices eliminated by the simplification, and may compress 3D mesh data based on the covariance matrix.

Abstract: A method and related apparatus are provided for making an ultrasonic irradiation plan include generating a 3D organ model from an input image, generating irradiation information about a unit treatment volume based on at least one of a movement and a deformation of an organ in the 3D organ model, simulating irradiation of ultrasound for virtual treatment by using the generated irradiation information, and making an ultrasonic irradiation plan based on the simulation. Additionally, a method is provided for determining if such an ultrasonic irradiation plan is applicable, and if so carrying it out by emitting appropriate ultrasonic radiation.

Abstract: Disclosed is a three-dimensional (3D) mesh compression apparatus and method. The 3D mesh compression apparatus may generate a base mesh through a mesh simplification, may separately compress the base mesh and vertices eliminated by the simplification, may construct a covariance matrix based on a topological distance between the eliminated vertices, and may compress 3D mesh data based on the covariance matrix.

Abstract: Disclosed is a method and apparatus for encoding a three-dimensional (3D) mesh. The method for encoding the 3D mesh includes determining a priority of a gate configuring a 3D mesh corresponding to a 3D object, removing vertices configuring the 3D mesh using the determined priority of the gate, and simplifying the 3D mesh.

Abstract: An apparatus for generating a 3D ultrasonic color image of a fetus based on skin color of a mother includes a sample image acquisition unit acquiring a sample image by photographing a skin of a pregnant woman, a 2D color map generator generating a 2D color map based on the sample image, a probe irradiating ultrasonic signals into the pregnant woman and receiving reflected ultrasonic echo signals, a volume data generator generating 3D volume data based on the ultrasonic echo signals, and a controller generating a 3D ultrasonic color image of the fetus by applying values of the 2D color map to a 3D ultrasonic image obtained by volume rendering of the 3D volume data.

Abstract: A data processing apparatus and method. A vertex grouping unit of the data processing apparatus may group, into at least one group, a plurality of vertices included in a three-dimensional (3D) object desired to be compressed. A prediction mode determination unit may determine a prediction mode for compressing a vertex position with respect to each of the at least one group. A coder may code a prediction error vector and an identification (ID) index of the prediction mode determined with respect to each of the at least one group.

Abstract: A virtual world processing apparatus and method are provided. Sensed information related to an image taken in a real world is transmitted to a virtual world using image sensor capability information, which is information on a capability of an image sensor.

Abstract: Methods and apparatuses for generating treatment plans to be provided to focused ultrasound therapy apparatuses are provided. The method includes receiving an area to which ultrasound is to be irradiated, determining a size of a focal spot in the area, determining locations of focal spots in the area to which ultrasounds are to be sequentially irradiated based on the size of the focal spot, such that each of the locations of the focal spots is farthest from locations of focal spots in the area to which ultrasounds have been previously-irradiated, determining durations and intensities of ultrasound irradiations based on the size of the focal spot and the locations of the focal spots, and generating the treatment plan to irradiate ultrasound based on the size of the focal spot, the locations of the focal spots, and the durations and the intensities of the ultrasound irradiations.

Abstract: A method and system for generating an augmented reality (AR) scene may include obtaining real world information including multimedia information and sensor information associated with a real world, loading an AR locator representing a scheme for mixing the real world information and at least one virtual object content and the real world information onto an AR container, obtaining the at least one virtual object content corresponding to the real world information using the AR locator from a local storage or an AR contents server, and visualizing AR information by mixing the real world information and the at least one virtual object content based on the AR locator.

Abstract: A method of making an ultrasonic irradiation plan includes receiving image data representing anatomical features of a target object, generating information about at least one portion of the target object that is to be irradiated with ultrasound from the image data representing the anatomical features of the target object, and making an ultrasonic irradiation plan for irradiating the target object with ultrasound by simulating irradiating the target object with ultrasound based on the generated information.

Abstract: A method and an apparatus of enhancing a ray tracing speed. The method of enhancing a ray tracing speed may group a secondary ray based on a direction of the secondary ray in a 3D space, and may perform packet tracing based on the grouped secondary ray.

Abstract: A clock buffer circuit that generates a clock signal having a random cycle and duty from an input clock signal and a data output circuit including the same. The clock buffer circuit includes a buffer unit configured to receive an input clock signal and generate an internal clock signal and a first clock signal; a delay controller configured to receive the internal clock signal from the buffer unit and generate a delayed control signal according to a first control signal and a second control signal; and a delay unit configured to generate a second clock signal according to the first clock signal received from the buffer unit and the second clock signal received from the delay controller. The delay unit is configured to generate the second clock signal by randomly delaying transmission of the first clock signal.

Abstract: An integrated circuit comprising an output driver including an output terminal, and a receiving circuit including a termination resistor connected between the output terminal and a ground. The output driver comprising a first NMOS transistor configured to pull up a voltage of the output terminal to a pull-up voltage in response to a pull-up signal, and a second NMOS transistor configured to pull down the output terminal to a ground voltage in response to a pull-down signal.