| Patent application number | Description | Published |
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| 20090185621 | Video encoding/decoding apparatus and method - Provided are a resolution varying video encoding/decoding apparatus and method are provided. The video encoding apparatus comprises a resolution varying encoder to perform an encoding operation using motion estimation and compensation on a current image having a first resolution and a current image having a second resolution according to a resolution control signal to generate a bitstream, and a controller to generate the resolution control signal for varying a resolution to the first resolution or the second resolution at a predetermined interval. The video decoding apparatus comprises an analyzer to analyze a bitstream composed of encoded data having a first resolution or a second resolution and to generate a resolution control signal corresponding to a resolution flag included in the bitstream, and a resolution varying decoder to perform a decoding operation using motion compensation on encoded data having the first resolution and encoded data having the second resolution according to the resolution control signal to generate a reconstructed image. | 07-23-2009 |
| 20090190843 | Image encoding apparatus and image decoding apparatus - Provided are an image encoding apparatus and an image decoding apparatus. The image encoding apparatus includes a compression unit compressing a reference image by reducing a resolution of the reference image in a resolution adjustment mode determined from among at least two resolution adjustment modes according to a distribution of values of pixels of the reference image, and providing the compressed reference image to a memory, a reconstruction unit reconstructing the reference image by increasing a resolution of the compressed reference image stored in the memory to an original resolution, a predictive encoding unit performing predictive encoding on a current image by using the reconstructed reference image, and a predictive decoding unit generating the reference image by performing decoding on the predictive encoded current image, and providing the generated reference image to the compression unit. | 07-30-2009 |
| 20100157146 | APPARATUS AND METHOD FOR CONVERTING IMAGE IN AN IMAGE PROCESSING SYSTEM - An image conversion apparatus and method for converting a progressive image into an interlaced image in an image processing system are provided. A controller determines a number of frames to be used to convert a progressive image into an interlaced image. A converter generates an interpolated image for the progressive image according to the determined number of frames, and converts the progressive image into an interlaced image using the interpolated image. | 06-24-2010 |
| 20100195900 | APPARATUS AND METHOD FOR ENCODING AND DECODING MULTI-VIEW IMAGE - An apparatus and method for encoding and decoding a multi-view image including a stereoscopic image are provided. The apparatus for encoding a multi-view image includes a base layer encoding unit that encodes a base layer image to generate a base layer bit stream, a view-based conversion unit that performs view-based conversion of the base layer image to generate a view-converted base layer image, a subtractor obtaining a residual between a enhancement layer image and the view-converted base layer image, and an enhancement layer encoding unit that encodes the obtained residual to generate an enhancement layer bit stream. | 08-05-2010 |
| 20100226427 | APPARATUS AND METHOD FOR ENCODING AND DECODING MULTILAYER VIDEOS - A multilayer video encoding/decoding apparatus and method using residual videos, in which a base layer video is output by decoding a base layer bitstream, individual layer videos are output by decoding encoded individual layer bitstreams, format up-conversion is performed on the base layer video and at least one of the individual layer residual videos, and individual layer videos having different formats from the base layer video are reconstructed using the conversion results. | 09-09-2010 |
| 20110013082 | APPARATUS AND METHOD FOR CONVERTING IMAGE IN AN IMAGE PROCESSING SYSTEM - A method and apparatus for converting an image in an image processing system are provided, in which if a plurality of low-definition video frames are used for converting a low-definition picture to a high-definition picture, a weight is determined for each of the plurality of low-definition video frames, and one of two image fields that form a high-definition video frame is generated using the plurality of low-definition video frames according to the weights of the plurality of low-definition video frames. | 01-20-2011 |
| Patent application number | Description | Published |
|---|
| 20080219576 | Method and apparatus for encoding/decoding image - Provided are a method and apparatus for encoding/decoding an image. The method of encoding an image includes predicting pixel values in a first pixel group from among pixel groups of a block of a current image, using pixel values in a second pixel group of the block, and encoding the current image using the predicted pixel values. Accordingly, prediction efficiency can be increased by performing intra prediction using pixels in a current block. | 09-11-2008 |
| 20090003437 | Method, medium, and apparatus for encoding and/or decoding video - A method, medium, and apparatus for encoding and/or decoding video by generating a scalable bitstream supporting at least two bit-depths with forward compatibility, wherein the scalable bitstream comprises a base layer bitstream including a base quantization level and a base quantization parameter corresponding to a base bit-depth, and an enhancement layer bitstream including residue between an extended quantization level and a compensated quantization level that is predicted from the base quantization level, and a refined quantization parameter for refining the difference between an extended bit-depth and the base bit-depth. | 01-01-2009 |
| 20090110069 | Method and apparatus encoding and/or decoding image by using diffusion properties of the image - Provided are a method and apparatus for encoding/decoding a moving picture by using the diffusion properties of the image. In the method, a value of a current pixel is predicted from the values of neighboring pixels of the current pixel, based on the variations between the values of the neighboring pixels present in directions toward the current pixel; a correction value of the predicted value is calculated from at least one variation from among the variations; the value of the current pixel is determined by reflecting the correction value into the predicted value; and then, the original image is reconstructed using the determined value of the current pixel. | 04-30-2009 |
| 20090129466 | Method, medium, and apparatus efficiently encoding and decoding moving image using image resolution adjustment - A method, medium, and apparatus encoding and/or decoding a moving image. The method of decoding a moving image includes increasing a resolution of a compression image corresponding to a reference image of a current image from among compression images stored in a memory in order to reconstruct the reference image, generating a reconstruction image of the current image by decoding a bitstream by using the reconstructed reference image, and reducing a resolution of the generated reconstruction image in order to compress the reconstruction image and storing the compressed reconstruction image in the memory. | 05-21-2009 |
