Pixel unit, signal processing method and storage medium

A pixel unit and signal technology, applied in the field of image processing, can solve the problems of single sensor function and inability to obtain enough imaging information

Active Publication Date: 2020-07-10
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, because DVS works asynchronously, instead of passively reading out the information of each pixel in the "frame" sequentially, each pixel can only recognize actions and cannot obtain enough imaging information, making the sensor's single function

Method used

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  • Pixel unit, signal processing method and storage medium
  • Pixel unit, signal processing method and storage medium
  • Pixel unit, signal processing method and storage medium

Examples

Experimental program
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Embodiment 1

[0045] An embodiment of the present application provides a pixel unit. figure 1 It is a schematic structural diagram of a pixel unit provided in an embodiment of the present application. Such as figure 1 As shown, the pixel unit includes:

[0046] The image acquisition pixel layer 10 and the dynamic visual pixel layer 20, which are composed of photodiode PD columns and arranged up and down; the image acquisition pixel layer 10 is used to absorb the first part of the light signal in the target monochromatic light, and convert the first part of the light signal into The first electrical signal; the dynamic visual pixel layer 20, which is used to absorb the second part of the light signal different from the first part of the light signal in the target monochromatic light, and convert the second part of the light signal into a second electrical signal; the target monochromatic light Corresponding to the size of the PD column;

[0047] A pixel readout circuit 11 connected to the...

Embodiment 2

[0099] An embodiment of the present application provides a signal processing method, which is applied to the above-mentioned pixel unit. Figure 6 It is a schematic flowchart of a signal processing method provided in the embodiment of the present application. Such as Figure 6 As shown, the signal processing method mainly includes the following steps:

[0100] S601. Absorb a first part of the optical signal in the target monochromatic light through the image acquisition pixel layer, and convert the first part of the optical signal into a first electrical signal.

[0101] In the embodiment of the present application, the pixel unit includes an image acquisition pixel layer 10, through which the pixel unit absorbs a first part of the optical signal in the target monochromatic light and converts the first part of the optical signal into a first electrical signal.

[0102] It should be noted that, in the embodiment of the present application, the target monochromatic light corre...

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PUM

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Abstract

The embodiment of the invention discloses a pixel unit, a signal processing method and a storage medium. The pixel unit comprises: an image acquisition pixel layer and a dynamic vision pixel layer which are formed by photodiode PD columns and distributed up and down, wherein the image acquisition pixel layer is used for absorbing a first part of optical signals in the target monochromatic light and converting the first part of optical signals into first electric signals, the dynamic vision pixel layer is used for absorbing a second part of optical signals different from the first part of optical signals in the target monochromatic light and converting the second part of optical signals into second electric signals, and the target monochromatic light corresponds to the PD columns in size; apixel reading circuit connected with the image acquisition pixel layer and used for reading out the first electric signals; and a pixel comparison circuit connected with the dynamic vision pixel layer and used for outputting a pulse signal for representing the change condition of the electric signal based on the second electric signals and a third electric signal obtained by previous photoelectric conversion of the dynamic vision pixel layer.

Description

technical field [0001] The embodiments of the present application relate to the technical field of image processing, and in particular, to a pixel unit, a signal processing method, and a storage medium. Background technique [0002] Dynamic Vision Sensor (DynamicVisionSensor, DVS) is a sensor based on address-event expression. Its working principle imitates the working mechanism of biological vision. The pixels work asynchronously, and only output the address and information of the pixel where the light intensity changes, eliminating it from the source Redundant data has the characteristics of real-time dynamic response to scene changes, super-sparse representation of images, and asynchronous output of events. It can be widely used in target tracking, real-time monitoring, industrial automation, and robotics. [0003] At present, because DVS works asynchronously, instead of passively reading out the information of each pixel in the "frame" sequentially, each pixel can only r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/369H04N5/378
CPCH04N25/70H04N25/75
Inventor 杨鑫
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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