Sughrue Mion, PLLC
Method and apparatus for encoding and decoding image by using large transform unit
An apparatus for decoding an image, the apparatus including an entropy decoder that performs entropy-decoding to obtain quantized transformation coefficients of at least one transformation unit in a coding unit of the image, a decoder that determines a prediction mode of at least one prediction unit in the coding unit from information indicating the prediction mode for the at least one prediction unit, when the prediction mode is determined to be an inter prediction mode, not in an intra prediction mode, determines a size of the at least one transformation unit in the coding unit regardless of a size of the at least one prediction unit in the coding unit, and performs inverse-quantization and inverse-transformation on the quantized transformation coefficients of the at least one transformation unit to obtain residuals, and a restorer that performs inter prediction for at least one prediction unit in the coding unit to generate a predictor and restores the image by using the residuals and the predictor.
Samsung Electronics Co. Ltd.
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Jianle Min-su Tammy Woo-jin Hae-kyung Il-koo
Chen Cheon Lee Han Jung Kim