Provided are a display panel and a display device. The display panel includes a base substrate; a sensor; a light-shielding layer, and having a plurality of first holes configured to allow light from a fingerprint to pass through and be incident on the sensor; an encapsulation layer; a color filter layer on one side of the encapsulation layer away from the base substrate; and a cover plate on one side of the color filter layer away from the base substrate, wherein a distance between a surface of the cover plate away from the base substrate and a surface of the light-shielding layer away from the base substrate is a first distance, a distance between a surface of the light-shielding layer close to the base substrate and a surface of the sensor close to the base substrate is a second distance, 0<the second distance/the first distance≤0.63.

A process for a pre-acquisition auction for recycled electronic devices is disclosed herein. A plurality of pre-acquisition purchase prices are established with each of the plurality of pre-acquisition purchase prices established for a recycled electronic device in a predetermined condition, and each of the pre-acquisition purchase prices established by a winning bid from a bidder of a plurality of bidders for a recycled electronic device.

An imaging device having an imager that includes first pixels having sensitivity to a first light and second pixels having sensitivity to a second light, a wavelength of the first light being different from a wavelength of the second light. The imager being configured to acquire first image data from the first pixels and being configured to acquire second image data from the second pixels. Each of the first image data and the second image data including an image of a code, the code being configured to output the second light. The imaging device further including an image processor configured to extract an image of the code based on the first image data and the second image data.

An imaging device having an imager that includes first pixels having sensitivity to a first light and second pixels having sensitivity to a second light, a wavelength of the first light being different from a wavelength of the second light. The imager being configured to acquire first image data from the first pixels and being configured to acquire second image data from the second pixels. Each of the first image data and the second image data including an image of a code, the code being configured to output the second light. The imaging device further including an image processor configured to extract an image of the code based on the first image data and the second image data.

A camera is provided that has an image sensor having a plurality of pixel elements for recording image data of an object stream moved in a direction of movement relative to the camera and having objects of a height, and a control and evaluation unit that is configured to determine the height of a respective object with reference to the image data. The image sensor here is an event-based image sensor and the control and evaluation unit is configured to detect a measurement series of points in time at which pixel elements adjacent in the direction of movement consecutively register an event to determine a speed of an object image of the object on the image sensor from said measurement series and from this the height.

A system for classifying an object may include one or more processors, a sensor and a memory device. The memory device may include a data collection module, a starburst module, and an object classifying module. The modules have instructions that when executed by the one or more processors cause the one or more processors to obtain three dimensional point cloud data from the sensor, identify at least one cluster of points representing the object within the three dimensional point cloud data, identify a center point of the at least one cluster of points, project a plurality of rays from the center point to points of the at least one cluster of points to generate a shape, compare the shape to a plurality of candidate shapes, and classify the object when the shape matches at least one of the plurality of candidate shapes.

Some embodiments of the present disclosure relate to biometric characteristic detection technology, which provide a method and chip for biometric characteristic acquisition, and a computer readable storage medium. The method for biometric characteristic acquisition includes: acquiring a plurality of configuration parameters, where the plurality of configuration parameters include a first exposure duration, parameters defining a first region and a target photosensitive value, where the first region is a local region in a photosensitive region of the chip for biometric characteristic acquisition; exposing the first region according to the first exposure duration, and acquiring a photosensitive value of the first region; determining a second exposure duration required to acquire the target photosensitive value in the photosensitive region according to the photosensitive value of the first region and the first exposure duration; and acquiring a biometric image according to the second exposure duration.

According to an aspect, a detection device includes: a substrate; a plurality of photodiodes arranged on the substrate; a light source configured to emit light to an object to be detected; a detection circuit configured to detect first detection signals based on reverse bias currents of the photodiodes when the light source is off, and to detect second detection signals based on the reverse bias currents of the photodiodes when the light source is on; and a memory configured to store first imaging data based on the first detection signals when the light source is off, second imaging data based on the second detection signals when the light source is on, and difference data between the first imaging data and the second imaging data.

According to an aspect, a detection device includes: a substrate; a plurality of photodiodes arranged on the substrate; a light source configured to emit light to an object to be detected; a detection circuit configured to detect first detection signals based on reverse bias currents of the photodiodes when the light source is off, and to detect second detection signals based on the reverse bias currents of the photodiodes when the light source is on; and a memory configured to store first imaging data based on the first detection signals when the light source is off, second imaging data based on the second detection signals when the light source is on, and difference data between the first imaging data and the second imaging data.

A display device and a fingerprint recognition method are provided. The fingerprint recognition device includes at least two photosensitive regions receiving different colors of light, and the color of the light received by one photosensitive region corresponds to the emitted color of the light emitting sub-pixel in one color.