Abstract: Embodiments of the present disclosure provide a cone-rod dual-modality neuromorphic vision sensor, including: a first preset quantity of voltage-mode active pixel sensor (APS) circuits and a second preset quantity of current-mode APS circuits, where each of the voltage-mode APS circuits includes a first-type photosensitive device, and each of the current-mode APS circuits includes a second-type photosensitive device. The voltage-mode APS can output a target voltage signal representing light intensity information in a target light signal. The obtained target voltage signal represents the light intensity information with a higher precision, and therefore an image with higher quality can be obtained, that is, the image has a higher signal-noise ratio.

Abstract: Embodiments of the present disclosure provide a dual-modality neuromorphic vision sensor. A first-type current-mode active pixel sensor (APS) circuit can mimic excitatory rod cells, to perceive light intensity gradient information in a target light signal, thereby improving a dynamic arrange of an image sensed by a neuromorphic, vision sensor and its shooting speed. In addition, a first-type control switch is introduced for each of non-target first-type photosensitive devices, to control the obtained light intensity gradient information, and adjust the dynamic arrange of the image sensed by the neuromorphic vision sensor, thereby adjusting the shooting speed, and realizing a reconfigurable effect A voltage-mode APS can mimic cone cells, to output a target voltage signal representing light intensity information in the target light signal, and perceive the light intensity information in the target light signal.

Abstract: The present application discloses a primer set, a reagent, a kit for detecting methylation of a specific region of a human colorectal cancer-related gene from feces, blood, or tissue by using specific PCR, and the application thereof. The primer set includes specific amplified primer probe sequences for the methylated regions of specific regions of the gene markers PRDM12, FOXE1, and B3GAT2 genes found in this study; and the primer probe group also includes the specific amplification primer probe sequence of the methylated region of the specific region of the Vimentin, SFRP2-1, and SFRP2-2 genes and the specific amplification primer probe group of the internal reference gene ACTB, thus having high detection efficiency and strong pertinence.