Abstract: A method and apparatus to generate a volume-panorama image based on three-dimensional (3D) volume images is provided. A method of generating a volume-panorama image includes receiving pieces of image data of one or more volume images, extracting partial regions including one or more voxels from the volume images, determining a global conversion function representing a relationship of a conversion between a second volume image of the volume images and a first volume image of the volume images, the determined global conversion function being based on a conversion function representing a relationship of a conversion between one of the extracted partial regions of the second volume image and one of the extracted partial regions of the first volume image, and generating image data of a volume image to be combined with the first volume image from image data of the second volume image based on the determined global conversion function.

Abstract: A method and apparatus for temporally interpolating a three-dimensional (3D) depth image are provided to generate an intermediate depth image in a desired time. The apparatus may interpolate depth images generated by a depth camera, using a temporal interpolation procedure, may generate an intermediate depth image in a new time using the interpolated depth images, and may combine the generated intermediate depth image with color images, to generate a high-precision 3D image.

Abstract: A scalable three-dimensional (3D) mesh encoding method includes dividing the 3D mesh into layers of complexity into a plurality of graduated levels and generating vertex position information and connectivity information of each of the plurality of levels. The vertex position information about the 3D mesh is encoded based on a weighting in each bit plane and vertex position information having a higher weighting in each bit plane is first encoded.

Abstract: An apparatus and method for processing a virtual world. The apparatus for controlling a facial expression of an avatar in a virtual world using a facial expression of a user in a real world may include a receiving unit to receive sensed information that is sensed by an intelligent camera, the sensed information relating to a facial expression basis of the user, and a processing unit to generate facial expression data of the user for controlling the facial expression of the avatar, using initialization information representing a parameter for initializing the facial expression basis of the user, a 2-dimensional/3-dimensional (2D/3D) model defining a coding method for a face object of the avatar, and the sensed information.

Abstract: The present disclosure relates to a polycarbonate resin composition, which comprises: based on thermoplastic resin 100 parts by weight comprising (A) polycarbonate resin 60 to 80 wt %; and (B) polycarbonate-polysiloxane copolymer resin 20 to 40 wt %, (C) pearl metal particle 1 to 4 parts by weight; and (D) colorant 0.1 to 10 parts by weight.

Abstract: Disclosed are a virtual world processing device and method. By way of example, data collected from the real world is converted to binary form data which is then transmitted, or is converted to XML data, or the converted XML data is further converted to binary form data which is then transmitted, thereby allowing the data transmission rate to be increased and a low bandwidth to be used, and, in the case of a data-receiving adaptation RV engine, the complexity of the adaptation RV engine can be reduced as there is no need to include an XML parser.

Abstract: A method of estimating an organ deformation model includes generating at least one 3D organ shape model of an organ of a subject based on at least one non-real time medical image representing a deformation state of the organ of the subject; generating a deformation space for the organ of the subject based on the at least one 3D organ shape model and prior knowledge regarding the organ; and estimating a 3D organ deformation model of the organ of the subject based on a real-time medical image of the organ of the subject and the deformation space.

Abstract: Provided are a method and apparatus for generating an image of an organ. A medical image is input in real time. The medical image is compared with an image previously obtained using a 3D model, and an image obtained by combining the medical image with the 3D model is output.

Abstract: In an apparatus and method for processing a virtual world, haptic information regarding a virtual object in the virtual world, the haptic information corresponding to sensed information, is extracted and transmitted to a haptic feedback device. Accordingly, interaction between a real world and the virtual world is achieved. The processing speed of the haptic information with respect to the virtual object may be increased by varying data structures according to types of the virtual object.

Abstract: An apparatus and method for obtaining lighting information and material information in an image modeling system are provided. A material constant of a same material region and lighting information of the same material region may be extracted by applying color channel pixel values, depth values, and viewpoint information to a linear system in which a pixel value is defined by a material constant and a combination of a geometry component with a lighting component.

Abstract: Provided is a method and apparatus for modeling a human body using a depth image and a color image. An image processing apparatus may extract a body area from a color image based on a depth value of a depth image, may match a boundary of the extracted body area and a boundary of a generic body mesh model, and may deform a mesh of the generic body mesh model based on a depth value of a pixel positioned within the boundary of the extracted body area.

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: In an apparatus and method for processing a virtual world, haptic information regarding a virtual object in the virtual world, the haptic information corresponding to sensed information, is extracted and transmitted to a haptic feedback device. Accordingly, interaction between a real world and the virtual world is achieved. The processing speed of the haptic information with respect to the virtual object may be increased by varying data structures according to types of the virtual object.

Abstract: A method and apparatus for realistically expressing teeth performs rendering on a shape model of the teeth using a hybrid normal map based on materials and characteristics of the teeth in order to more realistically express the teeth.

Abstract: A method of tracing a movement trajectory of a lesion in a patient's internal structure, and a system for performing the same. The method includes generating an image showing a movement trajectory of a target portion that is a portion to be irradiated with a therapeutic wave, irradiating the internal structure with a tracking wave, determining a location of the target portion using a reflected wave, and determining whether the location of the target portion is within the movement trajectory.

Abstract: Provided are a method and an apparatus for image processing. A scene includes a low resolution depth image and a high resolution color image. A depth image up-scaler up-scales the depth image using an interpolation so as to improve the resolution of the depth image. A color-depth similarity based filter removes noise from the up-scaled depth image using the color image and the up-scaled depth image. A boundary sharpening filter converts a boundary between objects in the up-scaled depth image into a clearer boundary. The resolution of the depth image may increase to the level of the resolution of the color image by means of the depth image up-scaler, the color-depth similarity based filter and the boundary sharpening filter, and the depth of each pixel in the depth image may be adjusted.

Abstract: An apparatus for generating an image representing an object is provided. The apparatus may include a filtering unit configured to acquire first light of a first wavelength band and second light of a second wavelength band, which are included in light reflected from the object, by using a single filter; a sensing unit configured to convert both the first light and the second light into charges or convert only the second light into charges; a first image generating unit configured to generate a first image representing the object by correcting color values corresponding to the charges into which the first light and the second light have been converted; and a second image generating unit configured to generate a second image representing the object by using the charges into which the second light has been converted.

Abstract: Provided are methods of switching guest-host dual frequency liquid crystals by using a back flow. In the case of a shutter having a dual frequency liquid crystal layer between two transparent substrates, such a method includes: applying a first voltage having a first frequency to the dual frequency liquid crystal layer; and applying a second voltage having a second frequency to the dual frequency liquid crystal, the second frequency being higher than the first frequency, wherein the second voltage is higher than a threshold voltage that generates a back flow around liquid crystals of the dual frequency liquid crystal layer, and the first voltage is lower than the threshold voltage.

Abstract: A method of processing a depth image includes receiving a high-resolution color image and a low-resolution depth image corresponding to the high-resolution color image, generating a feature vector based on a depth distribution of the low-resolution depth image, selecting a filter to upsample the low-resolution depth image by classifying a generated feature vector according to a previously learnt classifier, upsampling the low-resolution depth image by using a selected filter, and outputting an upsampled high-resolution depth image.

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.