PROVISION OF PRECISION INFORMATION IN AN IMAGE ENCODING DEVICE IMAGE ENCODING METHOD AND PROGRAM IMAGE DECODING DEVICE AND IMAGE DECODING METHOD AND PROGRAM

摘要

The picture coding apparatus of the present invention includes a prediction unit configured to perform prediction on a picture received for each block based on a picture element which is coded to generate a prediction error, a prediction unit configured to perform orthogonal transformation and quantization , A coefficient encoding unit configured to encode quantization coefficients, and an arithmetic precision information generation unit configured to generate arithmetic precision selection information indicating selection of at least one arithmetic precision of prediction, orthogonal transformation, and quantization Unit and an operation precision encoding unit configured to encode the operation precision selection information.