Patent ID: 6072910
Filing Date: 2000-06-06
Classification: G06T,H04N

Abstract:
A coding apparatus for coding input image data of every block of a predetermined size, comprising:first vector quantizing means for vector-quantizing the input data and outputting L-bit vector quantized data;second vector quantizing means for performing further vector quantization on m items of L-bit vector quantized data output from said first vector quantizing means, without expanding said m items of L-bit vector quantized data, and outputting n-bit vector quantized data (where n<L.times.m);selecting means for exclusively selecting either the m items of L-bit vector quantized data or the n-bit vector quantized data based on a selection signal; andoutput means for outputting the m items of L-bit vector quantized data or the n-bit vector quantized data selected by said selecting means as a vector quantization result of the input image.