Abstract: An apparatus and method for extracting key frames and an apparatus and method for recording broadcast signals using the same, the key frame extracting apparatus including a stream information analyzing unit and a key frame extracting unit. The stream information analyzing unit extracts frame information from a video stream. The key frame extracting unit extracts a key frame among frames of the video stream by using the frame information.

Abstract: Disclosed is an anticancer composition for the treatment of hypoxia-induced angiogenesis-associated diseases including cancers. It comprises a microRNA-125 nucleic acid molecule. Also, methods of inhibiting angiogenesis, suppressing the invasion and metastasis of cancer cells, and treating cancers are provided.

Abstract: Disclosed is a radiation sensitivity-enhancing composition in which a microRNA-21 inhibitor acts as an active ingredient. The microRNA-21 inhibitor is an antisense nucleic acid molecule binding complementarily to microRNA-21. The composition can be administered to a patient in conjunction with irradiation. The inhibitor can act as a radiosensitizer, enhancing the therapeutic effect of such irradiation on cancer high in microRNA-21 expression level, particularly, glioma.

Abstract: A method for eliminating discontinuity of block boundaries of an image encoded in units of blocks and an apparatus thereof. A filter for eliminating discontinuity of block boundaries of an image encoded in units of blocks with a predetermined size includes: a vertical edge filtering unit which eliminates the discontinuity in the vertical direction of the blocks, by filtering sequentially in units of blocks; a determination unit which determines a start point of discontinuity filtering in the horizontal direction according to a filtering mode of a macroblock formed with the blocks; and a horizontal edge filtering unit. If the vertical direction discontinuity filtering of the blocks is finished to the filtering start point determined by the determination unit, discontinuity filtering in the horizontal direction of the blocks is sequentially performed for which the vertical direction discontinuity filtering is finished. Accordingly, time taken for filtering is reduced and unnecessary memory is not required.

Abstract: A method of removing blocking artifacts from block-coded digital images and an image reproducing apparatus using the same remove blocking artifacts from a block-coded digital image. The method includes adjusting filtering offsets on a block-by-block basis using motion vector (MV) and quantization parameter (QP) values; and performing deblocking filtering to remove the blocking artifacts from a decoded digital image using the adjusted filtering offsets. Accordingly, since the filtering offsets may be adaptively adjusted on a block-by-block basis to fit image characteristics, the blocking artifacts may be efficiently removed, thus, improving image quality.

Abstract: Provided is a moving picture decoding method and apparatus. The decoding method includes storing coding information on a certain block and neighboring blocks, deriving a filtering coefficient to filter a boundary between blocks and predicting a motion vector of a certain block, based on the stored information, and filtering the boundary between the certain block and the neighboring blocks based on the derived filtering coefficient. Accordingly, the number of the memories and the amount of routing resources needed are reduced.

Abstract: A method for eliminating discontinuity of block boundaries of an image encoded in units of blocks and an apparatus thereof. A filter for eliminating discontinuity of block boundaries of an image encoded in units of blocks with a predetermined size includes: a vertical edge filtering unit which eliminates the discontinuity in the vertical direction of the blocks, by filtering sequentially in units of blocks; a determination unit which determines a start point of discontinuity filtering in the horizontal direction according to a filtering mode of a macroblock formed with the blocks; and a horizontal edge filtering unit. If the vertical direction discontinuity filtering of the blocks is finished to the filtering start point determined by the determination unit, discontinuity filtering in the horizontal direction of the blocks is sequentially performed for which the vertical direction discontinuity filtering is finished. Accordingly, time taken for filtering is reduced and unnecessary memory is not required.

Abstract: A method of removing blocking artifacts from block-coded digital images and an image reproducing apparatus using the same remove blocking artifacts from a block-coded digital image. The method includes adjusting filtering offsets on a block-by-block basis using motion vector (MV) and quantization parameter (QP) values; and performing deblocking filtering to remove the blocking artifacts from a decoded digital image using the adjusted filtering offsets. Accordingly, since the filtering offsets may be adaptively adjusted on a block-by-block basis to fit image characteristics, the blocking artifacts may be efficiently removed, thus, improving image quality.

Abstract: An apparatus and a method decide and manage a coding mode for each motion estimated block without an operation of a system control unit in an image coding and without storing a detected SAD for each motion estimated block. The apparatus includes a motion estimation unit, a system control unit, and a comparator. The motion estimation unit detects an optimal sum of absolute differences (SAD) by a motion estimated block when a motion is estimated by using a current frame data and a previous frame data. The system control unit outputs a predetermined threshold related to the optimal sum of absolute differences. The comparator compares the optimal sum of absolute differences output from the motion estimation unit with the predetermined threshold and outputs information indicating the coding mode for a current motion estimated block. The information indicating the coding mode output from the comparator is expressed by using a bit.

Abstract: A system and method which dynamically and interactively displays information, such as advertising messages, in an intelligent artificial form by responding to a user's pointing device movement or activity. The pointing device activity by the user is analyzed in real-time and displays intended information and/or images near the pointer in real-time by employing layer technology. Other effects provided in response the pointing device movement or activity include disappearance, reappearance, dropping to the corner of the screen, etc of the information and/or image as the pointer is shook or moved in a certain shape by the user. These effects attract potential customers or clients by providing the various features disclosed in the invention under the Internet environment through web-sites.