Patent ID: 8498335

Claim:
A method of encoding image or video information, the method comprising: using a computer, dividing the image or a picture associated with the video information into multiple blocks; getting a texture measurement for the image or video information; adjusting deadzone size of a quantizer, on a block basis, based at least in part on the texture measurement, so that the deadzone size expands as an amount of texture increases, wherein the texture is related to a smoothness of a block; quantizing the image or video information using the quantizer with the adjusted deadzone size to transform the image or video information to a quantized version thereof; and performing a frequency transform that produces a DC coefficient and plural AC coefficients, wherein the plural AC coefficients are the information that is quantized and for at least one of the plural AC coefficients, the adjusted deadzone size of the quantizer is also based at least in part on the AC coefficient.