Abstract: The present disclosure provides a method for processing an event data flow and a computing device. The method includes: reading a plurality of pieces of event data with a first duration sequentially from the event data flow; with respect to each piece of event data with the first duration, analyzing the event data to acquire time-difference information about each event within the first duration; and generating an image frame presenting a change in movement within the first duration in accordance with the time-difference information about each event within the first duration.

Abstract: Disclosed are a pixel acquisition circuit, an image sensor, and an image acquisition system. The pixel acquisition circuit includes a photodetection unit, filter-amplification unit, sample and hold unit, and activation control unit. The photodetection unit outputs a first electrical signal corresponding to a light signal illuminating thereon. The filter-amplifier unit is connected to the photodetector, and amplifies and filters out the signal component below a frequency threshold on the first electrical signal, to output a second electrical signal. A threshold comparison unit determines whether the second electrical signal is greater than a first threshold and/or less than a second threshold and, if so, generates an activation instruction signal. In response to receiving an activation instruction signal, the activation control unit instructs the sample and hold unit to acquire and buffer the first electrical signal, and sends a transmission request to an interface bus connected to the sample and hold unit.

Abstract: The invention discloses a pixel acquisition circuit, an optical flow sensor, and an image acquisition system. Therein, the optical flow sensor comprises a pixel acquisition circuit array, a waveform generator, a global control unit, and a readout unit. The pixel acquisition circuit array comprises the pixel acquisition circuits in accordance with the invention. The waveform generator is operative to output a periodic signal waveform to the time signal line coupled with each of the pixel acquisition circuits in the array. The global control unit is operative to output said global activation signal to each pixel acquisition circuit through the global trigger signal line, and output a reset signal to each pixel acquisition circuit through said reset signal line. The readout unit is operative to read the signals output by at least a part of the pixel acquisition circuits in that array.

Abstract: The invention discloses a pixel acquisition circuit, an image sensor, and an image acquisition system. Therein, the pixel acquisition circuit comprises a photodetection unit, a filter-amplifier unit, a sample and hold unit, and an activation control unit. The photodetection unit is operative to output a first electrical signal corresponding to the light signal illuminating thereon in real time. The filter-amplifier unit has its input terminal coupled with the output terminal of the photodetector, and is operative to perform amplification and filtering out the signal component below a frequency threshold on the first electrical signal, so as to output a second electrical signal. A threshold comparison unit is operative to determine whether the second electrical signal is greater than a first threshold and/or less than a second threshold, and generate an activation instruction signal when the second electrical signal is greater than the first threshold or less than the second threshold.

Abstract: Disclosed are a pixel acquisition circuit, an image sensor, and an image acquisition system. The pixel acquisition circuit includes a photodetection unit, filter-amplification unit, sample and hold unit, and activation control unit. The photodetection unit outputs a first electrical signal corresponding to a light signal illuminating thereon. The filter-amplifier unit is connected to the photodetector, and amplifies and filters out the signal component below a frequency threshold on the first electrical signal, to output a second electrical signal. A threshold comparison unit determines whether the second electrical signal is greater than a first threshold and/or less than a second threshold and, if so, generates an activation instruction signal. In response to receiving an activation instruction signal, the activation control unit instructs the sample and hold unit to acquire and buffer the first electrical signal, and sends a transmission request to an interface bus connected to the sample and hold unit.