Method and arrangements for provision of pixel values for readout from an image sensor

One or more devices for provision of pixel values for readout from at least a region of pixels of an image sensor, wherein said one or more devices are configured to:

• obtain information indicating a threshold pixel value and a window around maximum, WAM, width corresponding to a number of pixels;
• expose pixels of at least said region of the image sensor whereby the exposed pixels attain analogue pixel values, respectively, corresponding to sensed light during the exposure,
• identify a respective group of one or more pixels in respective image sensor column of said region whose analogue pixel value during said exposure was first in said respective column to reach or pass said threshold pixel value,
• associate said identified respective pixel group with a respective certain WAM position of a respective WAM in said respective image sensor column of said region and which respective WAM has said WAM width, whereby the respective WAM identifies, in respective column, a number of pixels corresponding to the WAM width covering the identified respective pixel group and neighboring pixels, and
• provide, for parallel readout per WAM position and based on said exposure, pixel values of pixels associated with the same WAM position in their respective WAM.

A non-transitory computer-readable medium storing instructions that, when executed by one or more processors cause one or more devices for provisioning of pixel values for readout from at least a region of pixels of an image sensor to perform operations comprising:

• obtaining information indicating a threshold pixel value and a window around maximum, WAM, width corresponding to a number of pixels;
• exposing pixels of at least said region of the image sensor whereby the exposed pixels attain analogue pixel values, respectively, corresponding to sensed light during the exposure,
• identifying a respective group of one or more pixels in respective image sensor column of said region whose analogue pixel value during said exposure was first in said respective column to reach or pass said threshold pixel value,
• associating said identified respective pixel group with a respective certain WAM position of a respective WAM in said respective image sensor column of said region and which respective WAM has said WAM width, whereby the respective WAM identifies, in respective column, a number of pixels corresponding to the WAM width covering the identified respective pixel group and neighboring pixels, and
• providing, for parallel readout per WAM position and based on said exposure, pixel values of pixels associated with the same WAM position in their respective WAM.