Intra prediction apparatus and intra prediction method using first blocks obtained by dividing a picture and second blocks obtained by dividing the first block

Abstract

To provide an intra prediction apparatus which can circumvent a hazard problem and improve the time reduction effect. An intra prediction apparatusperforms intra predictions of a picture. The intra predictions include: second intra predictions of respective second blocks (blocks) which are obtained by dividing a first pixel block; and a first intra prediction of the first block (macroblock) which constitutes the picture. The intra prediction apparatusincludes: an intra prediction unit (a prediction unit, an orthogonal transform and quantization unit, an inverse orthogonal transform and inverse quantization unit, and an adder) which performs the intra predictions; and a control unitwhich controls the intra prediction unit to perform in parallel the intra prediction of the macroblock and the intra predictions of the respective pixel blocks.