{'fraction_non_alphanumeric': 0.017985611510791366, 'fraction_numerical': 0.007194244604316547, 'mean_word_length': 4.863157894736842, '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}}
The key technology and research progress of CMOS image sensor

Since the 1990s, with the development of technology of VLSI, CMOS image sensors have been developed increasingly. The architecture and working principle of CMOS image sensors are introduced. The main advantages of CMOS image sensors with respect to CCD are analyzed. The key technical problems of CMOS image sensor are discussed, and the related solving ways are given. The research status of CMOS image sensors is reviewed. At last, the development trends of CMOS image sensor are prospected.