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We benchmark the efficacy of several novel orthogonal, symmetric, dilation-3wavelets, derived from a unitary circuit based construction, towards imagecompression. The performance of these wavelets is compared across several photodatabases against the CDF-9/7 wavelets in terms of the minimum number ofnon-zero wavelet coefficients needed to obtain a specified image quality, asmeasured by the multi-scale structural similarity index (MS-SSIM). The newwavelets are found to consistently offer better compression efficiency than theCDF-9/7 wavelets across a broad range of image resolutions and qualityrequirements, averaging 7-8% improved compression efficiency on high-resolutionphoto images when high-quality (MS-SSIM = 0.99) is required.

Improved Wavelets for Image Compression from Unitary Circuits