Methods of encoding and decoding video are described. The methods for encoding and decoding a picture partitioned into blocks include determining an activity rank for a block, based on a block size of the block and an intra-coding mode for the block; calculating a normalization value based on the activity rank divided by an average activity rank determined over a plurality of previously-encoded/decoded blocks; and quantizing/dequantizing a set of transform domain coefficients for the block using a quantization step size adjusted by the normalization value.

A method for encoding a video sequence in a video encoder is provided that includes adapting a quantization parameter of a block of pixels in a picture of the video sequence based on a transform block size of the block of pixels to determine a final quantization parameter, and quantizing transform coefficients of the block of pixels using the final quantization parameter.

Presented herein are systems, methods, and apparatus for real-time high definition television encoding. In one embodiment, there is presented a method for encoding video data. The method comprises receiving an estimates of amounts of data for encoding earlier pictures; providing target rates based on the estimates of data for encoding the earlier pictures; receiving measures indicative of the actual data for encoding the earlier pictures; and providing at least one target rate for encoding at least one later picture based on the target rates for encoding the earlier pictures and the measures indicative of the actual data for encoding the earlier pictures.

An apparatus for reconstructing a current motion vector of a current block in a current frame by determining a predicted motion vector of the current motion vector, includes: a differential motion vector decoder to reconstruct a differential motion vector by decoding an encoded differential motion vector included in a bitstream; and a motion vector reconstructor to derive one or more motion vector prediction candidates to predict the current motion vector, set the predicted motion vector to a motion vector prediction candidate determined among the one or more motion vector prediction candidates, and reconstruct the current motion vector of the current block by adding the predicted motion vector to the differential motion vector.

A video transform method includes: receiving a quantized transform coefficient for a target block and a transform index for a non-separated secondary transform; inverse-quantizing the quantized transform coefficient; deriving an input transform coefficient size indicating the length of the inverse-quantized transform coefficient to which the non-separated secondary transform has been applied, an output transform coefficient size indicating the length of a modified transform coefficient to which the non-separated secondary transform has been applied, and a transform set mapped to the intra mode of the target block, when the transform index does not indicate that the non-separated secondary transform is not performed; and deriving the modified transform coefficient on the basis of a matrix operation on a transform kernel matrix in the transform set indicated by the transform index, and a transform coefficient list corresponding to the input transform coefficient size.

Initial value is selected when motion estimation is performed using predicted motion vector in video codec in which multiple references are allowed, and coding amount of motion vectors is reduced using predicted motion vector. Motion vector encoding apparatus includes predicted motion vector generator that generates adjacent motion vectors of current block with respect to each of reference pictures and generates each predicted motion vector of the current block from the generated adjacent motion vectors, motion estimator that determines final motion vector of the current block and final reference picture corresponding to the final motion vector with regard to search regions of the reference pictures, differential unit that obtains difference between the final motion vector of the current block and final predicted motion vector corresponding to the determined final reference picture among the predicted motion vectors, and unit for encoding information about the final reference picture and the difference.

A method of predicting a portion of an image, for encoding or decoding of an image, the image portion being predicted by an intra prediction process with respect to samples of at least one reference image portion of the image, the method comprising deriving samples from at least one reference image portion; generating, from said derived samples, by the intra prediction process, at least one prediction image portion corresponding to the image portion to be predicted; and applying a parametric displacement transformation to at least the derived samples and/or the prediction image portion. A method and device for encoding and a method a device for decoding are also described.

The present invention relates to a method and an apparatus for processing a video signal. The method comprises: acquiring an inter-view motion vector from a neighboring block of a current texture block; and decoding the current texture block using the acquired inter-view motion vector. The neighboring block includes a spatial neighboring block and a temporal neighboring block. The acquired inter-view motion vectors are compared with each other to determine the inter-view motion vector of the current texture block. The method and apparatus of the present invention may reduce the complexity for acquiring an inter-view motion vector and improve the accuracy of inter-view inter prediction.

A 2D/3D conversion processing section converts 2D contents (television broadcast program) received by a television broadcast receiving section to contents for the right eye and contents for the left eye for 3D, and the contents for 3D obtained by conversion are subjected to 3D display on a display section. When switching is made from 2D display to 3D display, a central control section suppresses display of data-broadcast data regarding television video data. Consequently, even if video display of the television broadcast is switched from 2D to 3D, video of television broadcast can be displayed in 3D as effectively as possible.

The present invention relates to a method for coding a video signal using hybrid coding, comprising: reducing temporal redundancy by block based motion compensated prediction in order to establish a prediction error signal, deciding whether to transform the prediction error signal into the frequency domain, or to maintain the prediction error signal in the spatial domain for encoding.