Patent ID: 6687410
Filing Date: 2004-02-03
Classification: G06T

Abstract:
A method for data compression comprising:defining a block of pixels as a present block; comparing a characteristic of each pixel of said present block to a corresponding pixel of a previous block; transmitting no data when each of said pixels of said present block is approximately equal to said corresponding pixels of said previous block; comparing a characteristic of each of said pixels of said present block to all other pixels of said present block when each of said pixels is not approximately equal to said corresponding pixels of said previous block; transmitting one byte of data when each of said pixels of said present block is approximately equal to all other pixels of said previous block; quantizing each of said pixels to a quantized value of said present block when each of said pixels of said present block is not approximately equal to all other pixels of said present block; transmitting said quantized value when said quantized value is within a predetermined quantization variance.