Method of encoding floating-point data, the encoder and decoder and related method for decoding a floating-point data

摘要

Algorithms that efficiently compress floating-point data of the 3D mesh is disclosed. 3D mesh is represented topology data, by property data and geometry data. Specify the vertex position, the geometry data is represented by the floating point coordinates normally. Geometry data is usually compressed, quantized, the entropy coding and prediction, the present invention does not use prediction. Has an exponent and mantissa, the number of floating-point, is compressed separately usually mantissa, exponent, and sign. If the determined floating-point value if the current stored in the memory previously, the value of the current is not stored in the memory before the method of encoding the data in floating point format, the value of the current be stored in the memory, and encoding the value of the current. Otherwise, if the floating point value of the current has been stored in the memory before the memory locations of the memory of the value is determined, a reference that points to the memory location is encoded.