A method of generating a time-lapse video includes: identifying an image storage mode; obtaining a first image; based on identifying that the image storage mode is an emphasis mode for emphasizing one or more images, obtaining a first time difference between the first image and a stored image, and a first feature value indicating a first amount of change between the first image and the stored image; for each respective image of a first plurality of images of a first image group stored in a memory, identifying a second image from among the first plurality of images, based on a second time difference and a second feature value; generating a second image group by removing the second image from the first image group and adding the first image to the first image group; and generating the time-lapse video by using a second plurality of images of the second image group.

A method of generating a time-lapse video includes: identifying an image storage mode; obtaining a first image; based on identifying that the image storage mode is an emphasis mode for emphasizing one or more images, obtaining a first time difference between the first image and a stored image, and a first feature value indicating a first amount of change between the first image and the stored image; for each respective image of a first plurality of images of a first image group stored in a memory, identifying a second image from among the first plurality of images, based on a second time difference and a second feature value; generating a second image group by removing the second image from the first image group and adding the first image to the first image group; and generating the time-lapse video by using a second plurality of images of the second image group.

Various embodiments of the present invention relate to an electronic device and a recording method thereof. The electronic device may comprise: a touch screen; an image sensor for capturing an image; a processor operatively connected to the touch screen and the image sensor; and a memory operatively connected to the processor, wherein the memory stores instructions which, when executed, cause the processor to designate at least a partial screen area of the touch screen as a motion detection area, determine whether a motion is detected in the motion detection area, and control the image sensor, in response to detecting the motion in the motion detection area, so as to perform super slow recording. Various other embodiments are also possible.

A device and a corresponding system are disclosed. The device may comprise a display. Additionally, the device and/or system may be operable to detect stale images. Further, the stale images may be detected in devices and/or systems where incoming images—such as from an imager—are received at a frame rate different than that of the display. A controller may detect the stale images by assigning hash values to images of each frame displayed by the display; storing novel hash values in a memory; and maintaining a counter. The counter may be maintained such that assigning a repeat hash value increments the counter by one and assigning novel hash values resets the counter to zero. Further, the stale images may be determined based, at least in part, on the counter value.

An electronic device and a controlling method thereof are provided. The electronic device includes a memory, a first camera including a first image sensor and at least one processor, and the at least one processor obtains a plurality of image frames by photographing surroundings of the electronic device through the first camera, sets a region of interest (ROI) on the plurality of image frames, obtains a motion identification map corresponding to each of the plurality of image frames and select at least one image frame from among the plurality of image frames based on the obtained motion identification map, identifies whether there is a motion of an object on the ROI set on the selected at least one image frame, and performs a Super Slow Motion (SSM) function through the first camera based on a result of the identification.

A method and system for recording and playing a video are provided. The method includes receiving an input, from a first user, to start recording of the video. An orientation of a recording device is detected for a plurality of frames while recording the video. An input to stop recording of the video is then received. The video is stored in a video file and the orientation of the recording device for the plurality of frames is stored as metadata associated with the video file. The playing includes receiving an input to play the video from a second user. An orientation of a playing device is detected. The video file is accessed, and the video is played using the metadata, the input received from the second user, and the orientation of the playing device. The video file is used to control speed and direction of the video.

A method and system for recording and playing a video are provided. The method includes receiving an input, from a first user, to start recording of the video. An orientation of a recording device is detected for a plurality of frames while recording the video. An input to stop recording of the video is then received. The video is stored in a video file and the orientation of the recording device for the plurality of frames is stored as metadata associated with the video file. The playing includes receiving an input to play the video from a second user. An orientation of a playing device is detected. The video file is accessed, and the video is played using the metadata, the input received from the second user, and the orientation of the playing device. The video file is used to control speed and direction of the video.

This application relates to the field of terminal AI technologies, and discloses a video shooting method and an electronic device. The electronic device disclosed in this application is provided with a first camera and a second camera. After receiving an instruction for shooting a slow motion video, the electronic device can invoke the first camera to perform preview, and after detecting that a target moving object moves in a field of view of the first camera, determine a target shooting frame rate. Further, the electronic device invokes the second camera to shoot a slow motion video of the target moving object at the target shooting frame rate. In this way, the electronic device can determine a best shooting frame rate based on a moving speed of the target moving object. This achieves a high degree of intelligence, and can optimize a shooting effect.

Systems and procedures for transforming video into a condensed visual representation. An example procedure may include receiving video comprised of a plurality of frames. For each frame, the example procedure may create a first representation, reduced in one dimension, wherein a visual property of each pixel of the first representation is assigned by aggregating a visual property of the pixels of the frame having the same position in the unreduced dimension. The example procedure may further form a condensed visual representation including the first representations aligned along the reduced dimension according to an order of the frames in the video.

Systems and procedures for transforming video into a condensed visual representation. An example procedure may include receiving video comprised of a plurality of frames. For each frame, the example procedure may create a first representation, reduced in one dimension, wherein a visual property of each pixel of the first representation is assigned by aggregating a visual property of the pixels of the frame having the same position in the unreduced dimension. The example procedure may further form a condensed visual representation including the first representations aligned along the reduced dimension according to an order of the frames in the video.