The second image in each pair of frames was taken from a standard MPEG image sequence. However, in the foveated sequences, the total amount of pixels to compress was less than in the unfoveated sequences. Therefore, in order to achieve equal bit rates, the foveated sequences required less quantization. This publication also tells how video compression algorithms other than MPEG can be used in conjunction with the foveated lowpass pyramid. See the list of frequently asked questions for general information on foveated imaging.
High resolution is concentrated on the woman in the first image.
Resolution is constant in the second image. High resolution is concentrated on the man in the first image. Resolution is constant in the second image. High resolution is concentrated on the dancer in the first image. Resolution is constant in the second image.