Systems and methods are disclosed to enable fast readout from an image sensor to support pixel-wise conversion gain selection for high dynamic range imaging. In embodiments, an image sensor integrated circuit performs the pixel-wise gain selection with its readout circuitry, so that the image sensor outputs pixels with only the selected gain option. In this manner, the image sensor is able to achieve faster frame rates and lower power consumption. Depending on the embodiment, the conversion gain may be selected by the readout logic, an image signal processor, or an auto-exposure engine. The gain selection may be made based on a previous image captured by the camera or other pixels in the same image. The image signal processor may interpolate a high-gain and a low-gain portion of the image to obtain full resolution images in the two gain options, and merge the two to obtain the final image.

Systems and methods are disclosed to enable fast readout from an image sensor to support pixel-wise conversion gain selection for high dynamic range imaging. In embodiments, an image sensor integrated circuit performs the pixel-wise gain selection with its readout circuitry, so that the image sensor outputs pixels with only the selected gain option. In this manner, the image sensor is able to achieve faster frame rates and lower power consumption. Depending on the embodiment, the conversion gain may be selected by the readout logic, an image signal processor, or an auto-exposure engine. The gain selection may be made based on a previous image captured by the camera or other pixels in the same image. The image signal processor may interpolate a high-gain and a low-gain portion of the image to obtain full resolution images in the two gain options, and merge the two to obtain the final image.

An analogue to digital converter for converting the analogue output of a dual conversion gain pixel of an image sensor. The dual conversion gain pixel is operable to sequentially output a reset pixel value and a signal pixel value sequentially with both a first gain and a second gain different to the first gain. An image sensor comprising the analogue to digital converter, a system comprising the image sensor and a method are also described herein.

An analogue to digital converter for converting the analogue output of a dual conversion gain pixel of an image sensor. The dual conversion gain pixel is operable to sequentially output a reset pixel value and a signal pixel value sequentially with both a first gain and a second gain different to the first gain. An image sensor comprising the analogue to digital converter, a system comprising the image sensor and a method are also described herein.

A radiation imaging apparatus comprises a readout unit and a gain map generation unit. The readout unit repetitively outputs the image data a plurality of times during a period in which radiation irradiation is performed for generating the gain map data. The gain map generation unit collects a plurality of image data output from the readout unit, and in response to stop of the radiation irradiation, generates the gain map data based on the plurality of image data except at least finally collected image data in the plurality of collected image data.

Systems and techniques are described herein for capturing images. For instance, a process can include obtaining a first image associated with a first exposure setting and obtaining a second image associated with a second exposure setting that is different from the first exposure setting. The process can include obtaining motion information associated with at least one of the first image and the second image and determining, based on the motion information, that motion associated with a first pixel of the first image exceeds a threshold. The process can include generating, based on the motion information, a fused image including a first set of pixels from the first image and a second set of pixels from the second image. The first set of pixels from the first image includes the first pixel based on the determination that the motion associated with the first pixel exceeds the threshold.

An image sensor includes a pixel array including a plurality of pixels, a readout circuit configured to generate a digital signal from the pixel signal received from the pixel array, and a signal processor configured to determine whether to perform a binning on a first pixel group and a second pixel group among the plurality of pixels based on at least one of a first value of the digital signal corresponding to the first pixel group and a second value corresponding to the second pixel group adjacent to the first pixel group, and generate image data based on a first operation with the first value and the second value are used as operands when the binning being determined to be performed.

An image sensor includes a pixel array including a plurality of pixels, a readout circuit configured to generate a digital signal from the pixel signal received from the pixel array, and a signal processor configured to determine whether to perform a binning on a first pixel group and a second pixel group among the plurality of pixels based on at least one of a first value of the digital signal corresponding to the first pixel group and a second value corresponding to the second pixel group adjacent to the first pixel group, and generate image data based on a first operation with the first value and the second value are used as operands when the binning being determined to be performed.

An electronic apparatus comprises: an image sensor that shoots a subject and outputs image data; a controller that controls sensitivity of the image sensor; a display that displays an image based on the image data; and a selector that selects an acceptable noise level based on noise of the image displayed on the display. The controller limits the sensitivity based on the selected noise level.

An electronic apparatus comprises: an image sensor that shoots a subject and outputs image data; a controller that controls sensitivity of the image sensor; a display that displays an image based on the image data; and a selector that selects an acceptable noise level based on noise of the image displayed on the display. The controller limits the sensitivity based on the selected noise level.