Abstract: Provided is an Electromagnetic Bandgap (EBG) structure, particularly, a resonator and a bandpass filter having an overlay EBG structure, and a method of manufacturing the resonator. The resonator is manufactured by forming a transmission line and ground plates on a substrate, arranging a plurality of reflector units at regular intervals along the longitudinal direction of the transmission line, and removing at least one reflector among the plurality of reflectors, thus forming a common resonating mode. Therefore, since reflector units constructing capacitance components are separated from a substrate, it is possible to prevent electromagnetic waves from leaking out of the substrate and ensure a high Q characteristic in a high frequency environment due to a resonating unit formed between the reflector units.

Abstract: An optical lens is provided. The optical lens provides miniaturization and thin size, and reduces the cost and improves productivity by simplifying the structure and manufacturing process. The optical lens includes a light-transmitting substrate with a lens chamber and a fluidic chamber that are connected with each other. The optical lens also includes a light-transmitting elastic film which seals the lens chamber, a buffer elastic film which seals the fluidic chamber, and an actuator on the buffer elastic film which corresponds to the fluidic chamber, and varies the volume of the fluidic chamber to vary a pressure acting on the light-transmitting elastic film.

Abstract: Provided is a switched beam-forming apparatus which includes a beam-forming unit forming a plurality of beams using an array antenna, a beam selection adjusting unit measuring Quality of Service (QoS) values of each of a plurality of signals received through the plurality of beams, a beam selecting unit selecting at least two beams with high QoS from among the plurality of beams according to the results of the QoS measuring, and a beam combining unit combining the at least two beams selected by the beam selecting unit.

Abstract: Provided is an apparatus and method for determining stereo disparity based on two-path dynamic programming and GGCP. The apparatus includes a pre-processing unit for analyzing texture distribution of an input image by using a Laplacian of Gaussian (LOG) filter and dividing the input image into a homogeneous region and a non-homogeneous region; a local matching unit for determining candidate disparities to be included in an each pixel of all pixels; a local post-processing unit for removing candidate disparities in a pixel of low reliability by performing a visibility test betweens candidate disparities in each pixel to improve the reliability of the candidate disparity; and a global optimizing unit for determining a final disparity for candidate disparities in an each pixel by performing a dynamic programming.

Abstract: In a clock noise canceling circuit, a coupler extracts a signal from a clock signal. A filter selects a harmonic component of a preset frequency in the extraction signal from the coupler. A phase shifter phase inverts the harmonic component of the preset frequency from the filter. An AGC amplifier amplifies the phase-inverted harmonic component from the phase shifter. Also, a combiner combines the amplified component from the phase shifter with the clock signal to eliminate the harmonic component of the preset frequency from the clock signal. A power detector detects a power level of the harmonic component of the preset frequency in an output signal of the combiner. Additionally, a controller controls gain of the automatic gain control amplifier based on the power level of the harmonic component detected by the power detector, thereby canceling noises.

Abstract: A varifocal lens includes a hollow case having first and second sidewalls facing each other, the first and second sidewalls through which a light passes; at least one light transmission membrane partitioning an inner space of the case into at least two liquid chambers, the at least one light transmission membrane through which a light passes; at least two liquids filled in the at least two liquid chambers; at least one first operating hole formed at the first sidewall; a first actuator disposed to cover the at least one first operating hole and to pressurize the liquid contacting the first sidewall; and a controller configured to control the first actuator to change a focal distance of an optical lens consisting of the first and second sidewalls, the at least two liquids, and the at least one light transmission membrane of the case.

Abstract: A method for texturing of 3D model in 2D environment includes (a) generating a texture map set for 3D model data; (b) UV unwrapping the 3D model data on each of projected planes to obtain a UV map set for each projected plane; (c) performing a 2D image authoring on the UV map set for each projected plane to produce an edited image; and (d) mapping the texture map set and the UV map set by reflecting the edited image to the texture map set and the UV map sets that are generated previously until a desired texture map set is completed.

Abstract: A method for calibrating a camera including (a) obtaining a two-dimensional (2D) homography that maps each of parallelograms projected onto images taken by two arbitrary cameras 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.

Abstract: A locomotion generation method for a digital creature includes: imaging and capturing movements of a creature placed on a base plate having a printed pattern; extracting body position information, body posture information, leg posture information, and footprint information of the creature by analyzing captured images; and generating creature movement by applying inverse kinematics to the body position information, the body posture information, the leg posture information, and the footprint information of the creature.

Abstract: A method for transferring a pose from an original digital character to a newly-created digital character, includes: deriving constraints from a pose of the original character; modeling pose characteristics of each joint of the newly-created character as a probability distribution function having an input variable of a rotation angle of corresponding joint; and modeling pose characteristics of all joints of the newly-created character as a joint probability distribution function having input variables of rotation angles of corresponding joints. The method further includes extracting, based on the joint probability distribution function, the rotation angles of all joints of the newly-created character to thereby create a pose of the newly-created character, the rotation angles satisfying the constraints.

Abstract: A method of producing a locomotion animation includes calculating movement information of the objects on the basis of surrounding information of the objects and motion capture data for the subjects, and measuring a collision between the objects or between an object and an obstacle on the basis of the movement information to calculate riding motion information for the subjects. The movement information and the riding motion information are then synthesized to determine movement motion and riding animations of the objects. Therefore, the motions of locomotion can be naturally connected with each other.

Abstract: A liquid optical lens which changes a focus due to a change in a shape of a translucent elastic membrane according to a change in a fluid pressure of a lens chamber and a manufacturing method thereof are provided. The liquid optical lens forms a dampproof coating membrane on the translucent elastic membrane to prevent a fluid from permeating through the translucent elastic membrane and a swelling phenomenon of the translucent elastic membrane.

Abstract: There is provided a method of performing auto white balance including: setting a plurality of sections of a whole range of a value of each of Y, Cb, and Cr in the YCbCr color space, according to a size of each value; calculating an accumulated Y, Cb, and Cr value of pixels included in each of the plurality of sections; determining effective sections according to the number of the pixels included in each of the plurality of sections; calculating a mean Y, Cb, and Cr value of pixels included in all of the effective sections by using the accumulated Y, Cb, and Cr value of each of the effective sections; calculating a mean RGB value by converting the mean Y, Cb, and Cr value into an RGB color space; and determining an RGB color gain of a Bayer image outputted from an image sensor by using the mean RGB value.

Abstract: A broadband microstrip balun and a method of manufacturing the same are provided. In the balun, transmission lines formed at different layers partially overlap in parallel with each other, and a common ground having a predetermined opening is inserted between the transmission lines. Thus, an unbalanced signal may be converted into a balanced signal in a broad frequency band using resonance of a common ground plate with the opening and a Bethe hall effect. Also, impedance matching is readily enabled, thereby reducing a parasitic element.

Abstract: There is provided an apparatus for removing color noise including: a color interpolation unit performing color interpolation on a bayer pattern image output from an image sensor; a high-pass filter unit performing high-pass filtering on each of the pixels of the bayer pattern image to generate high-pass filtered values of each of the pixels; a high frequency region determining unit comparing pixel values of a target pixel, from which color noise is removed, and pixels adjacent to the target pixel with the high-pass filtered values to determine whether the target pixel is included in a high frequency region; and a color noise region determining unit using differences between color values of the target pixel interpolated by the color interpolation unit and determining whether the target pixel is included in a color noise region when it is determined that the target pixel is included in the high frequency region.

Abstract: An image sensing apparatus with artificial ommatidia includes an imaging optical lens group forming a concave focal surface, an artificial ommatidia unit having a curved top surface corresponding to the concave focal surface and a flat bottom surface, and an image sensor disposed under the artificial ommatidia unit. The artificial ommatidia unit is disposed under the imaging optical lens group so that the curved top surface is coincided with the concave focal surface of the imaging optical lens group. The artificial ommatidia unit having a plurality of artificial ommatidia collects light emitting from the imaging optical lens group, and guides the light to the bottom surface thereof.

Abstract: A multilayered coplanar waveguide (CPW) filter unit and a method of manufacturing the same are provided. A plate having a capacitance element is formed on or below a CPW layer including a signal line for transmitting a signal and a ground plane. As the filter unit has a multilayered structure, characteristic impedance may be reduced without increasing the width of the signal line. Where an inductor line is inserted between the signal line and the plate, a clear frequency response curve may be obtained without performing an additional process or increasing the area of the filter unit.

Abstract: Provided is an electromagnetic bandgap (EBG) structure, and particularly, an overlay EBG structure in which a plurality of vias and a plurality of plates are formed at intervals on a central signal line in such a manner that the vias and plates extend vertically from a substrate in order to reduce leakage loss of an electromagnetic wave through the substrate. Therefore, it is possible to prevent an electromagnetic wave passing through a transmission line from being lost through the substrate, to obtain desired frequency characteristics by adjusting the dimensions of the vias and plates, and to manufacture the overlay EBG structure using an existing CMOS process without having to perform any additional process.

Abstract: A varifocal optical device is provided. The varifocal optical device includes an optical lens, an actuator unit connected with the optical lens and having two areas that are bending-deformed in opposite directions to each other when a voltage is applied thereto, and a supporting unit to support the actuator unit, so that a focus of the optical lens is varied by the bending deformation when the voltage is applied to the actuator unit. Thereby, a driving displacement of the varifocal optical lens can be maximized.

Abstract: A histogram stretching apparatus and a histogram stretching method are disclosed to enhance image contrast by stretching a histogram of an input image within a range of a preset maximum expansion level and a preset minimum expansion level. The histogram stretching apparatus performs proper stretching suitable for a characteristic of the input image in due consideration of a saturation portion and a distribution range of a histogram of the input image. The histogram stretching apparatus can improve stretching effects by removing the saturated portion of the input image, and can prevent image distortion even for a monochromatic image. The histogram apparatus can improve histogram stretching effects by adjusting entire image levels of an image having a histogram frequency distribution skewed to a dark or bright side before a stretching operation.