Electronics and Telecommunications Research Institute

Kwangwoon University Research Institute for Industry Cooperation

Jeong-II Seo

Jin-Woo Hong

Kyeong-Ok Kang

Yung-Lyul Lee

Jin-Woong Kim

Seoung-Jun Oh

Kyu-Heon Kim

Dae-Young Jang

Dong-Gyu Sim

Seung-Kwon Beack

Jae-Ho Hur

Wook-Joong Kim

Ki-Hun Han

Provided are an apparatus and method for visualizing multichannel audio signals. The apparatus includes a spatial audio decoding unit for receiving a downmix signal of a time domain, converting the downmix signal into a signal of a frequency domain to output a frequency domain downmix signal, and synthesizing a multichannel audio signal based on the spatial parameter and the downmix signal; and a multichannel visualizing unit for creating visualization information of the multichannel audio signal based on the frequency domain downmix signal and the spatial parameter.

Apparatus and method for visualization of multichannel audio signals

Provided is an apparatus and method for encoding/decoding moving pictures based on adaptive scanning. The moving picture apparatus and method can increase a compression rate based on adaptive scanning by performing intra prediction onto blocks of a predetermined size, and scanning coefficients acquired from Discrete Cosine Transform (DCT) of a residue signal and quantization differently according to the intra prediction mode. The moving picture encoding apparatus includes: a mode selector for selecting and outputting a prediction mode; a predictor for predicting pixel values of pixels to be encoded of an input video based on the prediction mode to thereby output a residue signal block; a transform/quantization unit for performing DCT onto the residue signal block and quantizing the transformed residue signal block; and an encoder for adaptively scanning and encoding the quantized residue signal block based on the prediction mode.

Apparatus and method for encoding and decoding moving picture using adaptive scanning

Growing community of inventors

Daejon, South Korea

Jeong-II Seo