| 摘要 |
FIELD: information technology. ^ SUBSTANCE: disclosed is an apparatus for encoding video and a corresponding method of applying orthogonal transformation to a prediction error signal between a video signal for a target encoding region and a predicted signal for the video signal, and sampling the obtained orthogonal transformation coefficient using a given sampling interval so as encode the coefficient. Prediction error power is calculated, which is the prediction error signal power. For input information such as the calculated prediction error power, the given sampling interval and the upper limit for the volume of the code generated for the target encoding region, it is determined whether the upper limit of the volume of the code, generated when performing sampling using a predetermined sampling interval, is exceeded or not, and the encoding process is changed based on the determination result. ^ EFFECT: providing a video encoding device which does not require repeated encoding or encoding which corresponds to two or more encoding modes, and performs encoding, the volume of the generated code of which does not exceed the upper limit, without waiting for the result of measuring the volume of the generated code. ^ 5 cl, 20 dwg |
