VIDEO ENCODING DEVICE, VIDEO ENCODING METHOD, AND PROGRAM-CONTAINING NON-TRANSITORY COMPUTER-READABLE MEDIUM

摘要

A video encoding device includes: circuitry configured to perform an orthogonal transform on a target picture to obtain an orthogonal transform coefficient; quantize the orthogonal transform coefficient for each macroblock of the target picture; and calculate, for a target macroblock in the target picture, a base quantization step which is a variable for matching a generated code size of the target picture with a target code size set for the target picture, determine a quantization step to be applied to quantizing for the target macroblock by weighting the calculated base quantization step with an activity of the target macroblock, and provide the quantization step.

主权项

1. A video encoding device comprising:
circuitry configured to perform an orthogonal transform on a target picture to obtain an orthogonal transform coefficient; quantize the orthogonal transform coefficient for each macroblock of the target picture; and calculate, for a target macroblock in the target picture, a base quantization step which is a variable for matching a generated code size of the target picture with a target code size set for the target picture, determine a quantization step to be applied to quantizing for the target macroblock by weighting the calculated base quantization step with an activity of the target macroblock, and provide the quantization step.