A method, an image sensor, and an image processing device for crosstalk noise reduction are proposed. The method is applicable to an image sensor having a sensing array of image sensing elements and PD sensing elements and includes the following steps. A raw image generated by the sensing array is obtained. Whether to compensate image data of a current image pixel among image pixels corresponding to the image sensing elements is determined based on a first condition associated with at least one of an exposure and a system gain of the image sensor, a second condition associated with pixel coordinates of PD pixels corresponding to the PD sensing elements, and a third condition associated with sharpness information of the raw image. The image data of the current image pixel is compensated in response to the three conditions being satisfied. A processed raw image including the compensated image data is generated.

A method, an image sensor, and an image processing device for crosstalk noise reduction are proposed. The method is applicable to an image sensor having a sensing array of image sensing elements and PD sensing elements and includes the following steps. A raw image generated by the sensing array is obtained. Whether to compensate image data of a current image pixel among image pixels corresponding to the image sensing elements is determined based on a first condition associated with at least one of an exposure and a system gain of the image sensor, a second condition associated with pixel coordinates of PD pixels corresponding to the PD sensing elements, and a third condition associated with sharpness information of the raw image. The image data of the current image pixel is compensated in response to the three conditions being satisfied. A processed raw image including the compensated image data is generated.

The invention relates to a method for inspecting a security document (10), the use of an augmented reality system (20) for inspecting a security document (10) as well as an augmented reality system (20). One or more first items of information of the security document (10) are captured by means of an augmented reality system (20), in particular a pair of smartglasses. The one or more first items of information are then checked by comparison with a database (40). Furthermore, one or more of the results of the check of the one or more first items of information are stored and/or one or more of the results of the check of the one or more first items of information are output by means of the augmented reality system (20).