Patent ID: 6915016

Claim:
A method for wireless image transmission, comprising the steps of: inputting an image selected from the group consisting of uncompressed images and compressed images, whereupon if said image is UNCOMPRESSED, then said method for wireless image transmission further comprises the steps of: performing a wavelet transform of said image to produce wavelet coefficients; performing a scalar quantization of said wavelet coefficients; organizing said coefficients into low-resolution sub-bands and high-resolution sub-bands; forming said organized coefficients into a binary stream representation; modulating said binary stream representation; transmitting said modulated binary stream representation over a wireless channel; demodulating said transmitted binary stream; reconverting said demodulated binary stream back into reconverted wavelet coefficient values; dividing said reconverted wavelet coefficient values into low resolution and high resolution coefficients; performing a wavelet coefficient combining process, comprising: a first step of determining whether said divided wavelet coefficient values in position (i,j) are different, whereas, if said divided wavelet coefficient values in position (i,j) are different, THEN said step of performing a wavelet coefficient combining process further comprises: a second step of determining whether said divided wavelet coefficient values are from the low-resolution sub-band, whereas, if said divided wavelet coefficient values are from the low-resolution sub-band, THEN said step of performing a wavelet coefficient combining process further comprises: making a set by collecting M by N said divided wavelet coefficient values that surround coefficient (i,j) from each channel; choosing the median of said set as the new coefficient value; placing said new coefficient value in a combined transform; reconstructing said image by computing the inverse wavelet transform; receiving said image; OTHERWISE, if said divided wavelet coefficient values are NOT from the low-resolution sub-band, THEN said step of performing a wavelet coefficient combining process further comprises: choosing said divided wavelet coefficient value with a minimum absolute value; placing said coefficient value with a minimum absolute value in a combined transform; reconstructing said image by computing the inverse wavelet transform; receiving said image; OTHERWISE, if said divided wavelet coefficient values in position (i,j) are NOT different, THEN said step of performing a wavelet coefficient combining process further comprises: choosing said divided wavelet coefficient value from either channel; placing said coefficient value from either channel in a combined transform; reconstructing said image by computing the inverse wavelet transform; and receiving said image.