摘要:
A video encoding method includes generating a primary error image by performing motion estimation and compensation on a current frame with reference to a previous frame, generating a secondary error image by performing motion estimation and compensation on the primary error image of the generated current frame with reference to an error image of the previous frame. The error image of the previous frame is obtained by performing motion estimation and motion compensation on the previous frame when the previous frame is encoded.
摘要:
An audio-visual (AV) system and timing method senses the location of a user and provides optimum sound quality. The tuning method for the AV system includes: sensing the location of an electronic apparatus located within a predetermined close distance from a user and calculating the direction and distance from the electronic apparatus to at least one speaker; and by regarding the sensed location of the electronic apparatus as the location of the user and based on the calculated direction and distance information calculated, adjusting the direction and volume of each speaker in order to provide optimum sound quality to the location of the user. Accordingly, with respect to the changing location of the user, optimum sound quality can be provided.
摘要:
A method and apparatus to estimate a motion using searched motion vectors, and an image encoding system adopting the method and apparatus are provided. The motion between lower level frame data is estimated to obtain search points with minimum Sum of Absolute Differences (SADs). The search points are used as a based motion vector. Searches are performed on both upper level frame data and upper level field data using the based motion vector and search points are obtained with minimum SADs. The search points obtained from the searches on the upper level frame data and upper level field data are used as frame and field motion vectors.
摘要:
An image processing apparatus and an image processing method, the image processing apparatus including: an image input unit which receives an image; and an image processing unit which generates reference data on the basis of a plurality of learning images classified into a plurality of first classes according to a noise characteristic and a plurality of second classes according to an image characteristic, and which performs scaling for the received image on the basis of the generated reference data.
摘要:
A method of encoding moving pictures using a plurality of quantization matrices. The method involves selecting one of the plurality of quantization matrices in consideration of an at least one characteristics of an input image; transforming the input image; and quantizing the transformed input image using the selected quantization matr ix.
摘要:
A method of encoding moving pictures using a plurality of quantization matrices. The method involves selecting one of the plurality of quantization matrices in consideration of an at least one characteristics of an input image; transforming the input image; and quantizing the transformed input image using the selected quantization matrix.
摘要:
A method and apparatus for transmitting and receiving wireless multi-band stream signals using optimal resolution in a wireless digital television transmitter/receiver environment. The method includes: receiving, from a first wireless receiver, at least one of first resolution information and first channel information of a first receiver terminal connected to the first wireless receiver; receiving, from a second wireless receiver, at least one of second resolution information and second channel information of a second receiver terminal connected to the second wireless receiver terminal; scaling a video signal according to a resolution level supported by the first receiver terminal based on the first resolution information and the first channel information and scaling the video signal according to a resolution level supported by the second receiver terminal based on the second resolution information and second channel information; and transmitting the scaled video signals to the first and second wireless receivers, respectively.
摘要:
In a method of adaptively encoding input image data of a motion image in accordance with a temporal complexity of the motion image, and an apparatus therefore, the temporal complexity of the input image data is calculated. Next, an original frame rate of the input image data is converted into a converted frame rate based on the calculated temporal complexity. Thereafter, the input image data whose frame rate has been converted is encoded, and the encoding data of the encoded image data is controlled so that the encoded image data has information on the converted frame rate. Accordingly, the input image data is encoded at different frame rates in accordance with the temporal complexity of the input image data. Consequently, the encoded input image data is efficiently stored.
摘要:
Provided are an image encoding/decoding method and apparatus, in which one of a plurality of color component images is predicted from a different color component image reconstructed using a correlation between the plurality of color component images. Using a reconstructed image of a first color component image selected from among the plurality of color component images forming a single color image, the other color component images are predicted.
摘要:
Image residue encoding and decoding methods and apparatuses are provided. In this method, a residue of a color component image is predicted from another color component image using a correlation between residues of the color component images, wherein the residues correspond to differences between input images and prediction images of the respective color component images constituting a single image, so that the encoding efficiency is improved.