1. A method, comprising: performing, by a computing device: receiving image data for a first image in a sequence of images, wherein each image in the sequence comprises a plurality of image tiles; transmitting the image data for the first image, wherein said transmitting comprises: transmitting image data for at least some of the first image's plurality of tiles using lossy compression due to resource constraints; wherein said transmitting image data for at least some of the first image's plurality of tiles using lossy compression due to resource constraints comprises: quantizing a plurality of data transform coefficients to generate a corresponding plurality of quantized coefficients, wherein the plurality of data transform coefficients are based on the image data; and transmitting the plurality of quantized coefficients; receiving image data for a subsequent image in the sequence of images; determining that the image data for at least some of the subsequent image's plurality of tiles does not change more than a predetermined amount relative to image data for corresponding tiles of the first image; and transmitting the image data for the subsequent image in a manner sufficient to create lossless versions of tiles for which lossily compressed data was previously sent, wherein said transmitting the image data for the subsequent image comprises: comparing the plurality of data transform coefficients to the plurality of quantized coefficients to generate a plurality of coefficient differentials; and transmitting the plurality of coefficient differentials.