Approximation converse dispersion cosine conversion for scalable calculation complex video image and static image decoding

摘要

At the data independence value which in the multiplication where the manner which treatment calculation complexity of the image and video scaling is done treats the digital image and the video data in accordance with the maximum available tonnage of the calculation resource unit, possesses the data dependant value where the husband Various applied data independence value and does the multiple data multiplication where the calculation resource unit of the specified quantity is necessary for running, chooses one among data multiplication, needs the tonnage of the calculation resource unit which is smaller than the necessary tonnage of the calculation resource unit which is necessary in order to run the multiplication which is chosen is chosen relation is attached shift/addition operation,Shift/subtraction operation or shift operation is chosen, the multiplication which is chosen is run with shift operation. The decoding vessel which scaling is done is offered the calculation complexity of decoding of the video image and the static image with the available calculation resource. The decoding vessel, the converse quantizer which quantizes the signal which is received from the varying decoding vessel and the varying decoding vessel conversely, following to the above-mentioned manner, includes the approximation converse dispersion cosine conversion and moving calculation complexity of decoding scaling are done compensator.