Fast connection speeds
Real image compression (JPEG, PNG) uses different techniques (DCT, entropy coding), but quadtrees capture the same principle: spend your bits where the detail is, not uniformly across the whole image.
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Geometry Transforms
与此同时，逸仙电商集团内部各品牌之间很难形成渠道、供应链、用户的有效协同，完美日记的用户无法转化为高端护肤用户，收购品牌也无法反哺完美日记提升调性，各自为战，形不成合力。