The disclosure provides an exposure control method, an exposure control device, an electronic device and a computer readable storage medium. The method includes: determining a target exposure for an image to be captured based on ambient light luminance; determining an exposure time for the image to be captured based on the target exposure and a preset photo-sensibility for the image to be captured; in response to determining that the exposure time for the image to be captured is greater than an upper limit, updating the exposure time for the image to be captured based on the upper limit; and performing an exposure control based on the exposure time and the photo-sensibility for the image to be captured.

Implementations described herein relate to methods, devices, and computer-readable media to display a motion image that includes a plurality of frames. In some implementations, a computer-implemented method includes determining a motion score for the motion image based on the plurality of frames. The method further includes determining whether the motion score meets a display threshold. If the motion score meets the display threshold, the method further includes causing the motion image to be displayed with subject motion by displaying the plurality of frames of the motion image in succession. If the motion score does not meet the display threshold, the method further includes causing the motion image to be displayed without subject motion by displaying a particular frame of the motion image.

A method is disclosed for improving the quality of photographs taken in low-light conditions by adjustment of shutter speed and digital gain based on a shutter prioritization value. Using a network of sensor, a digital camera processes various parameters, such as light level of the scene and movement of the camera or of subjects within the scene, to compute a shutter prioritization value. The value is then used to select the most appropriate shutter speed and digital gain combination from a constant exposure curve. Higher prioritization values correspond to faster shutter speeds and higher digital gain. Lower prioritization values correspond to lower shutter speeds and lower digital gain. In further embodiments, the shutter prioritization value may be manually customized by a user in order to produce artistic effects.

A camera mode to use for capturing an image or video is selected by estimating high dynamic range (HDR), motion, and light intensity with respect to a scene of the image or video to capture. An image capture device includes a HDR estimation unit to detect whether HDR is present in a scene of an image to capture, a motion estimation unit to determine whether motion is detected within the scene, and a light intensity estimation unit to determine whether a scene luminance for the scene meets a threshold. A mode selection unit selects a camera mode to use for capturing the image based on output of the HDR estimation unit, the motion estimation unit, and the light intensity estimation unit. An image sensor captures the image according to the selected camera mode.

The present invention provides a camera module includes a lens assembly including a plurality of lenses; an image sensor for converting an optical signal transferred through the lens assembly into an electric signal; a gyro sensor for outputting a variation signal in response to movement of the lens assembly and the image sensor; a stabilization controller for determining, in response to the variation signal, a first compensation value used to perform optical image stabilization (OIS) by driving at least one of the lenses and determining a second compensation value used to perform electronic image stabilization (EIS) by adjusting an effective area of the image sensor; and a movement correction device outputting a first control signal and a second control signal to perform image stabilization in response to the first compensation value and the second compensation value.

A camera mode to use for capturing an image or video is selected by estimating high dynamic range (HDR), motion, and light intensity with respect to a scene of the image or video to capture. An image capture device includes a HDR estimation unit to detect whether HDR is present in a scene of an image to capture, a motion estimation unit to determine whether motion is detected within the scene, and a light intensity estimation unit to determine whether a scene luminance for the scene meets a threshold. A mode selection unit selects a camera mode to use for capturing the image based on output of the HDR estimation unit, the motion estimation unit, and the light intensity estimation unit. An image sensor captures the image according to the selected camera mode.

A method and apparatus for capturing digital video includes displaying a preview of a field of view of the imaging device in a user interface of the imaging device. A sequence of images is captured. A main subject and a background in the sequence of images is determined, wherein the main subject is different than the background. A sequence of modified images for use in a final video is obtained, wherein each modified image is obtained by combining two or more images of the sequence of images such that the main subject in the modified image is blur free and the background is blurred. The sequence of modified images is combined to obtain the final video, which is stored in a memory of the imaging device, and displayed in the user interface.

An electronic image stabilization (EIS) method includes: obtaining video frames derived from an output of an image sensor, wherein each of the video frames has a full field of view (FOV) of the image sensor; obtaining motion information of the video frames; dynamically estimating, by a processing circuit, EIS margins according to FOV variation of a plurality of cropped images within the video frames respectively; and applying stabilization correction to the cropped images according to the motion information and the EIS margins, to generate a plurality of stabilized images.

A method and apparatus for capturing digital video includes displaying a preview of a field of view of the imaging device in a user interface of the imaging device. A sequence of images is captured. A main subject and a background in the sequence of images is determined, wherein the main subject is different than the background. A sequence of modified images for use in a final video is obtained, wherein each modified image is obtained by combining two or more images of the sequence of images such that the main subject in the modified image is blur free and the background is blurred. The sequence of modified images is combined to obtain the final video, which is stored in a memory of the imaging device, and displayed in the user interface.

A method and apparatus for capturing digital video includes displaying a preview of a field of view of the imaging device in a user interface of the imaging device. A sequence of images is captured. A main subject and a background in the sequence of images is determined, wherein the main subject is different than the background. A sequence of modified images for use in a final video is obtained, wherein each modified image is obtained by combining two or more images of the sequence of images such that the main subject in the modified image is blur free and the background is blurred. The sequence of modified images is combined to obtain the final video, which is stored in a memory of the imaging device, and displayed in the user interface.