Image sensor
AssigneeIndian Institute of Technology Delhi
InventorsManan Suri, Mukul Sarkar
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Abstract
Examples of image sensors are described herein. In an example, an image sensor may comprise an array of hybrid pixels, where each hybrid pixel includes light sensing unit and a non-volatile memory component coupled to the light sensing unit. The light sensing unit comprises a light detecting element and a charge to voltage conversion unit. The charge to voltage conversion unit is to provide an output pixel signal (VPD), based on photo-electrons generated by the light detecting element. Further, the non-volatile component when calibrated to an initial resistance state is to compress the output pixel signal (VPD) during exposure.
Claims12
An image sensor comprising an array of hybrid pixels, each pixel comprising:
- a light sensing unit comprising;
- a light detecting element to generate photo-electrons, based on incident light;
- and
- a charge to voltage conversion unit to provide an output pixel signal-eV-pa based the generated photo-electrons;
- and
- a non-volatile memory component coupled to the light sensing unit, wherein the non-volatile memory component when calibrated to a resistance state is to compress the output pixel signal during exposure.
A method of processing an image comprising:
- detecting input light exposure level, based on intensity of incident light;
- determining whether the input light exposure level is within a predefined exposure range;
- and
- when the input light exposure is not within the predefined exposure range, calibrating the resistance of a non-volatile memory component such that an output pixel signal generated based on the incident light is compressed during exposure in a predefined manner.
Dependencies are inferred from the claim text.