00533naa#a2200181#i#450# EN\\bibl\14250 20260818192440.2 1999-8775 20141205b2014####ek#y0engy0150####ca RUS RU Performance improving of fractal encoding based on perceptual hash functions. Journal article Bryansk Bryansk State Technical University 2014 4 с. Journal article local Gulakov Vasiliy Klepinin Sergey zh-szf.ru