CODER

摘要

PROBLEM TO BE SOLVED: To provide the coder that makes a task efficient so as to reduce a data quantity by providing a proper scale parameter to a coding means to attain the task of necessity of zero filling against a low efficiency in the case that the number of bits is less than the number of assigned bits due to a setting value of the scale parameter when a motion vector is coded. SOLUTION: A coding information detection means 303 decides a scale parameter 314 based on information 312 in a state of being photographed by a photographing means 302 and information 311 detected by a photographing information detection means 301 and a coding means 305 encodes a motion vector by using the parameter. A coding information decision means may decide the scale parameter based on the motion vector data by means of the coding means.