Abstract: A strap adjusting device and a wearable device are provided. The strap adjusting device is configured for adjusting a length of a strap of the wearable device and includes a pressing piece including a supporting plate connected to the strap and a cushion arranged on the supporting plate; a first sensor arranged on the pressing piece and configured to detect a deformation parameter value of the cushion; and a tightness adjusting mechanism cooperating with the strap and configured to adjust the length of the strap in response to the deformation parameter value of the cushion.

Abstract: A calibration method, an electronic device, and a non-transitory computer-readable storage medium are provided. The calibration method is applicable to an electronic device including a fingerprint sensor. The calibration method includes the following. Fingerprint collection is performed with the fingerprint sensor to obtain a first fingerprint image. A first numerical value is determined according to the first fingerprint image, a first calibration image, and a second calibration image, where the first numerical value is indicative of a change in brightness of a light source for the fingerprint collection, the first calibration image is an image obtained by performing image collection on a bright surface of a calibration box, and the second calibration image is an image obtained by performing image collection on a dark surface of the calibration box. The first fingerprint image is calibrated according to the first numerical value to obtain a second fingerprint image.

Abstract: A method for detecting a foreign object and related electronic devices are provided. The method is applied to an electronic device having a screen and an image sensor arranged below the screen. The image sensor captures a detection image. It is detected whether a foreign object is attached on the screen based on the detection image.

Abstract: A strap adjusting device and a wearable device are provided. The strap adjusting device is configured for adjusting a length of a strap of the wearable device and includes a pressing piece including a supporting plate connected to the strap and a cushion arranged on the supporting plate; a first sensor arranged on the pressing piece and configured to detect a deformation parameter value of the cushion; and a tightness adjusting mechanism cooperating with the strap and configured to adjust the length of the strap in response to the deformation parameter value of the cushion.

Abstract: An imaging method, an apparatus for imaging, a non-transitory storage medium, and an electronic device are provided. The electronic device includes a first camera and a plurality of second cameras. Regions captured by the plurality of second cameras overlap with an edge of a region captured by the first camera. An image capturing request for an object to be captured is received, the first camera may be driven to perform image capturing to the object based on the image capturing request to obtain a base image, the plurality of second cameras may be driven to perform image capturing to obtain a plurality of second images, image synthesis may be performed to the plurality of second images and the base image to obtain a final image corresponding to the image capturing request.

Abstract: Provided are a method for fingerprint recognition, an electronic device, and a non-transitory computer-readable storage medium. The method is applicable to the electronic device. The method includes the following. An image of a user's finger placed on a fingerprint collecting region of a display screen of the electronic device is collected as an original fingerprint image. A corrected fingerprint image is obtained according to the original fingerprint image and a predetermined foreign material image, where the predetermined foreign material image is obtained when the user's finger is not placed on the fingerprint collecting region and indicative of a foreign material on the fingerprint collecting region. Determine whether a match between the corrected fingerprint image and a pre-stored fingerprint image exists by comparing the corrected fingerprint image with the pre-stored fingerprint image. The electronic device is triggered to perform a preset action in response to that the match exists.

Abstract: A calibration method, an electronic device, and a non-transitory computer-readable storage medium are provided. The calibration method is applicable to an electronic device including a fingerprint sensor. The calibration method includes the following. Fingerprint collection is performed with the fingerprint sensor to obtain a first fingerprint image. A first numerical value is determined according to the first fingerprint image, a first calibration image, and a second calibration image, where the first numerical value is indicative of a change in brightness of a light source for the fingerprint collection, the first calibration image is an image obtained by performing image collection on a bright surface of a calibration box, and the second calibration image is an image obtained by performing image collection on a dark surface of the calibration box. The first fingerprint image is calibrated according to the first numerical value to obtain a second fingerprint image.

Abstract: A method for detecting a foreign object and related electronic devices are provided. The method is applied to an electronic device having a screen and an image sensor arranged below the screen. The image sensor captures a detection image. It is detected whether a foreign object is attached on the screen based on the detection image.

Abstract: An imaging method, an apparatus for imaging, a non-transitory storage medium, and an electronic device are provided. The electronic device includes a first camera and a plurality of second cameras. Regions captured by the plurality of second cameras overlap with an edge of a region captured by the first camera. An image capturing request for an object to be captured is received, the first camera may be driven to perform image capturing to the object based on the image capturing request to obtain a base image, the plurality of second cameras may be driven to perform image capturing to obtain a plurality of second images, image synthesis may be performed to the plurality of second images and the base image to obtain a final image corresponding to the image capturing request.

Abstract: Provided are a method for fingerprint recognition, an electronic device, and a non-transitory computer-readable storage medium. The method is applicable to the electronic device. The method includes the following. An image of a user's finger placed on a fingerprint collecting region of a display screen of the electronic device is collected as an original fingerprint image. A corrected fingerprint image is obtained according to the original fingerprint image and a predetermined foreign material image, where the predetermined foreign material image is obtained when the user's finger is not placed on the fingerprint collecting region and indicative of a foreign material on the fingerprint collecting region. Determine whether a match between the corrected fingerprint image and a pre-stored fingerprint image exists by comparing the corrected fingerprint image with the pre-stored fingerprint image. The electronic device is triggered to perform a preset action in response to that the match exists.