Abstract: Provided are an image encoding method and apparatus, in which a distribution of difference values included in an image unit is adjusted using a predetermined offset, an image unit including the adjusted distribution of the difference values is divided into an image plane corresponding to upper bits and an image plane for lower bits, and then the image planes are entropy-encoded.

Abstract: An image frame interpolation method and apparatus for determining an object and a background according to a degree of similarity between corresponding areas of a first image frame and a second image frame used for interpolation in every predetermined data unit of a third image frame interpolated between the first image frame and the second image frame and interpolating an object area of the third image frame by using object areas existing in original image frames.

Abstract: A method of a frequency-domain equalization to jointly suppress inter-symbol interference (ISI) and data-like co-channel interference (CCI) includes receiving a transmit signal over a channel, generating a vector by sampling and converting the transmit signal to a frequency domain signal; generating an equalized vector by multiplying an equalization matrix to the vector generated by converting; generating an estimate of data vector by inverse converting the equalized vector; and recovering data included in the transmit signal based on the estimate of data vector, wherein the equalization matrix is generated by approximating a frequency domain correlation matrix. Significant computational complexity is reduced than the LMMSE equalization while resulting in almost no performance degradation compared to the LMMSE equalization.

Abstract: A method and apparatus for encoding and decoding an image. The encoding method includes: deciding whether pixel values of a first block of an image are identical to pixel values of a second block of the image that is encoded prior to the first block in a current slice of the image, and determining whether to encode the first block in a first mode according to the deciding; and selectively encoding the first block in the first mode based on the determining, wherein the first mode is a mode for encoding information representing that the first block is encoded in the first mode, instead of encoding the pixel values of the first block, when the first block is identical or similar to the second block.

Abstract: An image encoding method and apparatus, and an image decoding method and apparatus respectively corresponding to the image encoding method and apparatus are provided. The image encoding method includes: if a current block is an initial block of a current slice, determining whether a virtual block in which pixel values are equal to a predetermined value is identical to the current block; and encoding the current block in a first mode based on the determining, wherein the first mode is a mode for encoding information representing that the current block is encoded in the first mode, instead of encoding pixel values of the current block, when the current block is identical to the virtual block.

Abstract: A method and apparatus for decoding an image are provided. The method includes: decoding information representing that a first block of the image has been encoded in a first mode; and reconstructing the first block by setting pixel values of the first block to be identical with pixel values of a second block of the image that is adjacent to the first block and has been decoded prior to the first block, wherein the first mode is a mode for encoding information representing that the first block is identical or similar to the second block and has been encoded in the first mode, instead of encoding the pixel values of the first block.

Abstract: A method and apparatus for decoding hierarchical mode information including mode information indicating whether a current block is encoded in an encoding mode identical to an encoding mode of a plurality of consecutive previous blocks.

Abstract: Methods and apparatuses for encoding and decoding mode information of a block of an image. The method of decoding the mode information includes decoding information representing whether a current block is encoded in a first mode, and hierarchically decoding information representing an encoding mode of the current block from among a second mode and a third mode.

Abstract: Provided are an image encoding method and apparatus, in which a distribution of difference values included in an image unit is adjusted using a predetermined offset, an image unit including the adjusted distribution of the difference values is divided into an image plane corresponding to upper bits and an image plane for lower bits, and then the image planes are entropy-encoded.

Abstract: Disclosed is a method of manufacturing a backlight unit, including: forming a plurality of LED recesses and a plurality of electrode recesses on a top surface of a flat panel-shaped lower glass; forming electrode patterns on the electrode recesses to supply current to LEDs; applying adhesives on the LED recesses; fixing the LEDs on the adhesives applied on the LED recesses; and stacking a flat panel-shaped upper glass on the top surface of the lower glass.

Abstract: Output buffer slew rate variation over variations in load capacitance is minimized by dividing output voltage transitions into distinct time and output current segments. During the first time segment, the first drive stage with the smallest current is employed. After subsequent delays, additional drive stages are employed and the load current is sequentially increased. Each drive stage employs a specifically sized feedback device which, depending upon its dimensions will provide either parasitic capacitance to slow transitions or positive feedback to speed up transitions. The first stages are sized to incorporate parasitic capacitance, resulting in little change in the settling time of small capacitance loads over prior art output buffers. Latter stages use positive feedback to quicken the transition time which dramatically improves the settling time for larger load capacitances over prior art output buffers.

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.