Kabushiki Kaisha Toshiba

Kosuke Uchida

Satoshi Hoshina

Noriaki Kitada

Yoshihiro Kikuchi

Yuji Kawashima

Tatsuro Fujisawa

Masahiro Tada

Katsuhisa Yano

According to one embodiment, a playback apparatus includes a decoder, a resolution receiver, and an image quality enhancer. The decoder configured to decode encoded first moving image data to generate second moving image data. The resolution receiver configured to receive a resolution of a display device on which a video image based on the second moving image data is displayed. The image quality enhancer configured to perform image quality enhancement processing to the second moving image data according to the resolution of the display device.

Playback apparatus and playback method

A video decoding device includes: a decoder that decodes an encoded video bit stream to generate a prediction error signal; a motion compensator that performs a motion compensation prediction using a motion vector that refers at least one picture to generate a motion compensation prediction signal; a weighted predictor that generates a weighted prediction signal from a linear sum of (1) a product of the motion compensation prediction signal and a first weighting coefficient and (2) a second weighting coefficient; a selector that selects one of the motion compensation prediction signal and the weighted prediction signal; and an adder that adds (1) selected one of the weighted prediction signal and the motion compensation prediction signal and (2) the prediction error signal.

Video decoding device and video decoding method

An information processing apparatus includes a unit that executes a de-blocking filter process for each of decoded pictures, a unit that executes a motion compensation prediction process that generates an inter-frame prediction signal, from one or more pictures that are subjected to the de-blocking filter process, a unit that executes an intra-frame prediction process that generates an intra-frame prediction signal, a unit that adds one of the inter-frame prediction signal and the intra-frame prediction signal to a prediction error signal corresponding to the to-be-decoded picture to decode the to-be-decoded picture, and a unit that executes, when a load on the information processing apparatus is greater than a predetermined reference value, a process that skips execution of the de-blocking filter process and generates the inter-frame prediction signal, which corresponds to the to-be-decoded picture, from the one or more decoded pictures that are not subjected to the de-blocking filter process.

Information processing apparatus and program for use in the same

A decoding apparatus includes a decoder configured to receive a series of encoded pictures and to decode each of the encoded pictures to produce a series of decoded pictures, each of the encoded pictures being either intra-encoded or inter-encoded, and each of the decoded pictures being either referred or, non-referred, a blocking noise suppressor configured to suppress blocking noise of each of the decoded pictures, and a controller configured to detect an amount of a load, to run each of the referred decoded pictures through the blocking noise suppressor if the detected amount of the load is no lower than a given threshold, and to have each of the non-referred decoded pictures bypass the blocking noise suppressor if the detected amount of the load is no lower than the threshold.

Apparatus and method for control of blocking noise suppressor

When a quantized DCT coefficient and a quantization parameter are input from an entropy decoder, a controller outputs them to a switch and gives a load detector an instruction to detect system load. The load detector requests system load information from OS. If the system load is light, the load detector controls the switch to execute first inverse quantization of general load by a general processor and obtain a DCT coefficient. If the system load is heavy, the load detector controls the switch to execute second inverse quantization whose processing load is lighter than the first inverse quantization by a specific processor and obtain a DCT coefficient.

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Ome, Japan

Kosuke Uchida