{'fraction_non_alphanumeric': 0.013197969543147208, 'fraction_numerical': 0.0, 'mean_word_length': 5.529801324503311, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
An investigation on the relationship between distortions in the motion magnified videos, and the choice of filter bank

Phase-based motion magnification is one the most recent advances in computer vision and computational photography that has introduced new approaches for structural dynamics identification. Unwanted artifacts and distortions are often present in the motion-magnified videos that can be traced back to the reconstruction procedure after manipulating the phase variations. Within this article, we have studied this phenomenon more closely to find out the relations between the distortions and the choice of filter bank, and the magnification factor. It has been shown that Fourier transformation can reconstruct motion-magnified frames without inducing any distortions, and on the other hand using other filter banks such as Gabor wavelets will generate motion-magnified frames that have distortions in them. The source of these distortions are also discussed briefly.