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However, time\u2010to\u2010digital converters (TDCs) in conventional ToF sensors are usually bulky, complex, and exhibit large delay and power loss. To overcome these issues, a resistive time\u2010of\u2010flight (R\u2010ToF) sensor that can measure the depth information in an analog domain by mimicking the biological process of spike\u2010timing\u2010dependent plasticity (STDP) is proposed herein. The R\u2010ToF sensors based on integrated avalanche photodiodes (APDs) with memristive intelligent matters achieve a scan depth of up to 55\u2009cm (\u224889% accuracy and 2.93\u2009cm standard deviation) and low power consumption (0.5\u2009nJ\/step) without TDCs. The in\u2010depth computing is realized via R\u2010ToF 3D imaging and memristive classification. 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