Abstract: A multi-display apparatus includes flat panel display devices and an optical path changing unit. The flat panel display devices include adjacent sides connected to each other. The optical path changing unit has an inclined surface symmetrical to a boundary surface of the flat panel display devices and shifting light emitted from the flat panel display devices toward a boundary surface between the flat panel display devices to display an image without a non-display area.

Abstract: A three-dimensional (3D) image display apparatus for enhancing a stereoscopic effect of an image is provided. The 3D image display apparatus includes a disparity estimator which estimates the disparity between a first image and a second image which are obtained by photographing the same object from different angles; a computing unit which computes the adjustment disparity between the first image and the second image using a histogram obtained by computing the frequency of the estimated disparity; and an output unit which applies the computed adjustment disparity to the first image and the second image and outputs the first image and the second image in which the disparity is adjusted. Therefore, the input disparity between the first image and the second image is adjusted, and an image with an enhanced stereoscopic effect may be provided to a user.

Abstract: A video encoding apparatus and method to distribute one or more macroblocks, classified into the same slice group, over an entire frame, according to the H.264 standard.

Abstract: A method and system of quantitatively evaluating subjective inconvenience, e.g., physiological fatigue and emotional fatigue, experienced by a user when the user views a three-dimensional display screen, based on objectively measurable indices. The method includes sorting words representing a degree of fatigue associated with a 3D image display among a plurality of words, grouping the sorted words through factor analysis, setting words with the highest factor weight as subjective parameters, receiving evaluation scores for the subjective parameters while varying test values of objective parameter candidates capable of representing 3D image characteristics in numerical values, obtaining a correlation between each of indices for N groups and each of the objective parameter candidates using the evaluation scores, and applying the factor weight to the indices to represent the degree of fatigue in the objective parameter candidates.

Abstract: Some embodiments of the present invention are related to devices and methods for sampling groundwater at multiple target depths, wherein each of the devices for sampling groundwater at multiple target depths comprises: a hammer part having a spring for generating inertia and a hammer connected to the spring; a sampling needle part having a needle integral with a impacting part impacted with the hammer; a guiding part for moving the sampling needle part in straight and downward direction; and a sampled water containing part having a sampled water container for collecting the sampled water through the needle.

Abstract: A highly efficient lighting system, a scrolling unit, and a projection system adopting the highly efficient lighting system and the scrolling unit are provided. The scrolling unit has at least one lens cell. From the viewpoint of light incident upon the at least one lens cell, the rotation of the at least one lens cell is converted into a rectilinear motion of a lens array, such that incident light is scrolled. The projection system includes a light source, an optical splitter, at least one scrolling unit, and a light valve. The optical splitter splits light emitted from the light source according to wavelength. The at least one scrolling unit has at least one lens cell. The lens cell has an incident side and an emitting side and divides incident light into light beams. The rotation of the lens cell causes a rectilinear motion of the light beams, thereby scrolling incident light.

Abstract: Provided is a satellite ground control system and method based on a communication satellite. The system includes: a communication satellite link means for monitoring and controlling a system device and transmitting remote measurement data and a process result to the central control station; an interface for analyzing the command, transmitting the command to a processing means and transmitting remote measurement data and a process result to the communication satellite link means; a satellite operating means for receiving a command from the interface, transforming the command into a remote command and transmitting remote measurement data to the interface; and a control satellite link means for transmitting the received remote command, receiving the remote measurement data, transmitting the remote measurement data to the satellite operating means, and transmitting a process result of monitor and control of a corresponding system device to the interface.

Abstract: A projection-type 3-D image display device includes a single display element, a polarization conversion switch, a first image shifter, a second image shifter, a projection lens unit, a mirrored light tunnel, and a screen unit. The screen unit includes an image separation unit. The single display element emits light polarized in a first polarization direction according to an input image. The polarization conversion switch time-sequentially converts the first polarization direction of the light emitted by the display element into a second polarization direction. The first image shifter transmits the light having the first polarization direction to form a first image and refracts the light having the second polarization direction to form a second image. The second image shifter faces the first image shifter and is arranged apart from the first image shifter by a predetermined interval. The projection lens unit enlarges and projects the first and second images.

Abstract: The present invention provides a duplex system for setting a route of telecommand and a method thereof. A duplex system for setting a route of telecommand, including: a first telecommand processing unit and a second telecommand processing unit for changing a format of a telecommand into a predetermined format; an up/down converting unit for up-converting the telecommand and for down-converting a telemetry; a first modem for modulating the telecommand; a second modem for modulating the telecommand; a control unit for setting the first modem as the route of telecommand, observing the first modem and the second modem and changing the second modem as the route of telecommand when an error occurs in the first modem; and a switching unit for setting the route of telecommand as one of the first modem and the second modem and transmitting the telecommand into the up/down converting unit.

Abstract: Provided is a high resolution 2D-3D switchable autostereoscopic display apparatus including: a backlight unit emitting light; a spatial light modulator comprising a plurality of cells, the cells being arranged two-dimensionally and comprising left eye regions and right eye regions that are each independently switchable between a transparent state and an opaque state; a lenticular lens sheet separating and emitting light passed through the spatial light modulator to a left eye viewing zone and a right eye viewing zone; and an image display panel displaying an image, wherein the spatial light modulator is divided into a plurality of horizontal segments that are sequentially switched in synchronization with a vertical synchronization signal of the image display panel.

Abstract: A multi-view video encoding apparatus and a method thereof are provided. The apparatus includes: a multi-view video input unit which receives a multi-view video; an I frame location determination unit which determines a location of an I frame which is a basis for encoding the multi-view video according to characteristics of multi-view frames at a predetermined time; and an encoding unit which encodes the multi-view video based on the determined location of the I frame. When the apparatus and the method are used, the location of the I frame, which is a basis for compression-encoding a multi-view video, can be adaptively determined and not fixed, thereby enhancing prediction efficiency and compression rates.

Abstract: Provided is a three-dimensional (3D) image display apparatus and method including: a display; a photographing unit including a camera, a first light source disposed on an axis identical to a camera axis and a second light source disposed on an axis different from the camera axis, which takes a photograph of an observer using light emitted from the first and second light sources, and generates first and second images; an eye information detection unit which detects eye information of the observer based on the first and second images and determines a position of the observer based on the detected eye information; and a 3D image adjustment unit which adjusts a 3D image, which will be displayed on the display, based on the determined position of the observer.

Abstract: An apparatus and method for displaying a three-dimensional image according to the position of a user, in which the distance between a display panel displaying a two-dimensional image and a three-dimensional optical panel converting a two-dimensional image into a three-dimensional image is controlled in accordance with the position of the user to provide an optimized three-dimensional image. The apparatus includes a three-dimensional optical device converting a displayed two-dimensional image into a three-dimensional image, a position measurement module measuring the position of the user who converges on the three-dimensional image, a crosstalk calculator calculating the level of crosstalk that can occur in the position of the user, and a driver adjusting a position of the three-dimensional optical device if the level of crosstalk exceeds a predetermined threshold value.

Abstract: A transcoder and a method of transcoding which reduces computational requirements without picture deterioration. A mode decision unit decides a mode of a scaled output macro block based on an area of the scaled macro block overlapped with a non-scaled macro block of a reference frame and a mode of the overlapped macro block. A motion vector decision unit decides a reference motion vector of the output macro block based on a motion vector with respect to the overlapped macro blocks. A picture quality preference mode selection unit receives a user picture quality preference command. A motion vector compensation unit compensates the motion vector of the output macro block based on the decided reference motion vector and the picture quality preference command.

Abstract: A method and system of quantitatively evaluating subjective inconvenience, e.g., physiological fatigue and emotional fatigue, experienced by a user when the user views a three-dimensional display screen, based on objectively measurable indices. The method includes sorting words representing a degree of fatigue associated with a 3D image display among a plurality of words, grouping the sorted words through factor analysis, setting words with the highest factor weight as subjective parameters, receiving evaluation scores for the subjective parameters while varying test values of objective parameter candidates capable of representing 3D image characteristics in numerical values, obtaining a correlation between each of indices for N groups and each of the objective parameter candidates using the evaluation scores, and applying the factor weight to the indices to represent the degree of fatigue in the objective parameter candidates.

Abstract: Provided are an apparatus and method for processing a three-dimensional (3D) video signal which corrects first and second video signals to prevent a reduction in a 3D effect and a disparity estimation error due to a difference between the first and second video signals. The method includes: a video signal detection unit detecting a difference between respective characteristics of received first and second video signals; and a video signal correction unit correcting the first video signal or the second video signal to equalize the characteristics of the first and second video signals. When the apparatus and the method are used, a reduction in the 3D effect and the disparity estimation error due to the difference between the first and second video signals can be prevented.

Abstract: A method for measuring video quality includes: receiving subjective video quality measuring data from a plurality of video quality measurers; photographing or capturing a test-target video image and receiving image data; calculating video quality measurement factor values with respect to the received image data, item by item; reflecting the video quality measurement factor values to the subjective video quality measuring data through video quality modeling; mapping results of the reflecting into scores; weighting the video quality measurement factor values according to their correlations with the subjective video quality measuring data; and outputting objective video quality measuring data on a screen. An associated video quality measuring system includes: a subjective video quality measurement input; an objective video quality measuring; a video quality modeling; and a video quality measuring algorithm unit.

Abstract: The present invention relates to an apparatus and method for extracting representative still images from Moving Picture Experts Group (MPEG) video. The apparatus includes a video curve generation unit for calculating the distances between the adjacent frames of all intra frames of input video and generating a video curve that is a cumulative curve of the distances; a video curve division unit for dividing the video curve into a certain number of segments; a still image selection unit for selecting video images corresponding to certain points of the divided video curve as representative still images; and a video output unit for outputting the still images selected by the still image generation unit. Accordingly, the present invention can summarize the video and provide representative still images to a user at high speed.

Abstract: A high-resolution autostereoscopic display is provided.

Abstract: A glassless stereoscopic display, which does not produce color separation and black stripes, includes: a display panel displaying an image using a plurality of pixels; a 3D optical plate separating the image displayed by the display panel into a left-eye image and a right-eye image; and a prism sheet disposed between the display panel and the 3D optical plate and having a plurality of prism elements regularly arranged to rotate an image provided by each of the pixels of the display panel by approximately 90°.