Abstract: Methods, systems, and devices for improving security of media streams are disclosed. The system can receive a decoded media stream from a media decoding pipeline that receives and decodes an encoded media stream. The system can identify, based on the decoded media stream, a set of features to generate, and generate the set of features using the decoded media stream. Such features may include luma histograms, pixel intensity data, motion vectors, edge detection, audio gain, tonal information, pitch information, among other types of features. The system can provide the set of features to a processor executing a machine-learning model, wherein the processor executing the machine-learning model is prevented from accessing the decoded media stream by the device.

Abstract: Systems, methods, and computer-readable media are disclosed for systems and methods for on demand video recap generation. Example methods may include determining a first request to resume playback of video content, wherein the first request is associated with a user account, determining, using historical consumption data associated with the user account, a portion of the video content that has been consumed, where the portion of the video content comprises a first video segment and a second video segment, determining that a first video segment ranking of the first video segment satisfies an importance threshold, generating a video recap of the portion of the video content, wherein the video recap comprises the first video segment, and causing presentation of the video recap.

Abstract: A video processing device for virtual reality is provided. The video processing device includes a video input mechanism configured to receive a first and a second original video obtained from a first camera device; a video processing mechanism in transmission connecting to the video input mechanism, the video processing mechanism includes a first video processing unit configured to adjust the first and the second original video to a first video and a second video, the first video processing unit is configured to further combine the first video and the second video into a third video having a 16:9 aspect ratio, and dimensions of the third video being a total of those of the first and the second video; and a video output mechanism in transmission connecting to the video processing mechanism through a physical wire. A video generating system for virtual reality is also provided.

Abstract: Disclosed are a method for playing a CEUS movie file, an ultrasound movie file, and ultrasound apparatus. The method comprises: receiving a playing instruction for the movie file which is a dynamic data of generated by ultrasound echoes returned from a target tissue to which ultrasound waves are transmitted by a probe of an ultrasound apparatus; determining an imaging frame rate of the ultrasound images; determining a playback frame rate of the movie file according to the imaging frame rate negatively correlated with the playback frame rate; and playing the movie file with the playback frame rate. By using the playback frame rate which is negatively correlated with the imaging frame rate to play movie files, the movie files with low frame rate can be played more smoothly and the movie files with high frame rate can be played in line with the look and feel of the human eye.

Abstract: Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product aspects, and/or combinations and sub-combinations thereof, for generating trailers (previews) for multimedia content. An example aspect operates by generating an initial set of candidate points to generate a trailer for a media content; determining conversion data for each of the initial set of candidate points; determining an updated set of candidate points based on the conversion data; determining an estimated mean and upper bound for each of the updated set of candidate points; computing a value for each of the updated set of candidate points; generating a ranked list based on the value computed for each of the updated set of candidate points; and repeating the process until an optimal candidate point is converged upon.

Abstract: A method for storing multi-lens recording file and multi-lens recording apparatus are provided. When at least one lens is driven for loop recording, a total recording capacity for loop recording is calculated based on setting data of the at least one lens driven. When a remaining capacity of a storage space is less than the total recording capacity, a file cleaning action is performed on multiple recorded files stored in the storage space for at least one lens. The file cleaning action includes: deleting the at least one recorded file stored in the storage space based on a recording time and a lens number until the remaining capacity is no less than the total recording capacity. When the remaining capacity of the storage space is no less than the total recording capacity, loop recording is performed through at least one lens being driven and a currently recorded file is stored.

Abstract: An Internet of Things (IoT) or vehicle dash cam may store both a high-resolution and low-resolution video stream on a device. The video streams are selectively accessible by remote devices. Because of the relatively smaller storage requirements of low-resolution video files, retaining of additional video data on the vehicle device (beyond what would be possible with only high-resolution video) is possible. The user may be provided an option to adjust the amount of low-resolution and high-resolution video to store on the device. A combined media file may be generated by a device to include time-synced high-resolution video, low-resolution video, and/or metadata for a particular time period.

Abstract: The present document discloses a method for playback of media content via a delivery channel. The delivery channel may generally refer to the channels through which audio or video programs are delivered (transmitted) to the user (receiver). The media content may generally comprise consecutive media programs. In particular, for a specific media program within the media content, a respective content type for that specific media program is also provided. The method may comprise receiving an indication of the sensitivity of a media program to playback latency. The method may further comprise receiving at least a portion of the media program. The method may yet further comprise adapting the playback of the media program based on the indication of its sensitivity to playback latency.

Abstract: A first audio timestamp of first audio is corrected based on a first latency corresponding to the first audio, to correct a correspondence between the first audio timestamp, the first audio, and a first image. In this way, a stored correspondence between the first image and the first audio is consistent with a correspondence between a picture corresponding to the first image and a sound corresponding to the first audio, thereby implementing audio and image synchronization.

Abstract: Systems and methods are directed to generating a synoptic video from one or more documents. The system receives an indication to generate the synoptic video and in response, accesses the one or more documents and user preferences of a user that are derived by the network system. The one or more documents are analyzed to determine relevant text content, whereby the analyzing includes tagging the relevant text content. Based on the user preferences, the system generates the synoptic video that summarizes the tagged relevant text content. The content and style of the synoptic video is based on a user style indicated by the user preferences. For example, the user preference can determine a depth of the summarized content, a type of audio or text used, an amount of images to provide, and an amount of summarized text to provide. The synoptic video can then be displayed to the user.

Abstract: Systems and methods including one or more processing modules and one or more non-transitory storage modules storing computing instructions configured to run on the one or more processing modules and perform acts of: receiving at least two consecutive frames of a video file; determining a level of difference between the at least two consecutive frames of the video file; receiving a subtitle file associated with the video file; analyzing the subtitle file to identify a gap in conversation in the video file; and identifying a scene change in the video file when: (1) the level of difference between the at least two consecutive frames of the video file is above a predefined threshold; and (2) the level of difference between the at least two consecutive frames of the video file occurs during the gap in the conversation. Other embodiments are disclosed herein.

Abstract: Systems and methods for improving audio playback at a playback device are described herein. In some embodiments, a system transitions between causing playback of a radio broadcast stream to causing playback of device music, such as in response to determining that a quality of the radio broadcast stream is below a threshold value. In some embodiments, a system selects songs to play based on device preferences of a plurality of different media devices. In some embodiments, a system selects a device from which to retrieve songs for playback based on one or more rules.

Abstract: A method of video search in an electronic device is provided. The method includes extracting a plurality of visual features vectors comprising visual features from a plurality of videos stored in a video database, wherein each visual feature corresponds to a pre-defined moment, generating a temporal map of the plurality of visual feature vectors, generating at least one video tag and at least one time stamp associated with the visual feature vector, storing the at least one video tag, the visual feature vectors and the at least one time stamp for each visual feature in a vector database, receiving a search query from a user for a specific moment in a plurality of videos in the electronic device, running the search query on the vector database, and displaying visual features associated with the specific moments from the plurality of videos.

Abstract: Embodiments herein provide for methods of dividing selected areas of a first video clip having a first composition, e.g., by generating individual video data corresponding to the selected areas, arranging the selected areas to provide a second composition, e.g., by combining the individual video data to generate composite video data corresponding to the second composition, and compiling the composite video data to provide a second video clip having the second composition.

Abstract: A 3D camera and a photographing method thereof are provided. The 3D camera includes an image 1 photographing unit and an image 2 photographing unit in the same optical system and a processing system that processes data of the image 1 photographing unit and the image 2 photographing unit. The processing system includes a control unit that controls image photographing by the image 1 photographing unit and the image 2 photographing unit, a recording and storage unit that performs processing on the control unit, and a 3D coordinate calculation unit that performs calculation on the recording and storage unit. 3D coordinates of an object point in 3D space or all space object points constituting a 3D object directly facing the camera are calculated by simultaneously photographing one or more pairs of images for the object point in the 3D space or all space object points constituting the 3D object.

Abstract: An electronic device according to various embodiments includes: a microphone, a memory, and a processor, wherein the memory stores instructions which, when executed, cause the processor to: control the electronic device to copy a signal acquired from the microphone, record a first signal, and perform voice recognition on a second signal based on a recording operation using the microphone being executed, determine an editing section including unnecessary information in the first signal based on a voice recognition result for the second signal, and generate recording data by editing the unnecessary information included in the determined editing section in the first signal.

Abstract: A method including: detecting a request for a first part of a video; detecting a request for a second part of the video, wherein the video has a video timeline and the second part of the video immediately follows the first part of the video in the video timeline; after detecting the request for the first part of the video and prior to detecting the request for the second part of the video, transmitting a request for a third part of the video, wherein the third part of the video follows the second part of the video in the video timeline; receiving the requested third part of the video; and storing the received third part of the video.

Abstract: A matching method, a terminal and a non-transitory computer-readable storage medium are provided. The matching method includes extracting audio clips from an integrated video clip, the integrated video clip being obtained by integrating a plurality of original video clips. The matching method further includes acquiring recognition data of the audio clips, the recognition data including subtitle data, a start time of the subtitle data and an end time of the subtitle data. The matching method further includes matching the subtitle data to the integrated video clip based on the start time and the start time of the recognition data, to obtain a recommend video.

Abstract: Music may be selected to provide accompaniment for a video edit of a video. Characteristics of the music may be determined and used to select the types of visual effects that are applied in the video edit. The characteristics of the music may be extracted from MIDI file/metadata track containing MIDI information for the music.

Abstract: A correction control apparatus outputs a blur correction amount associated with an image blur with respect to a group of captured images. The apparatus obtains status information indicating an image capture status of the group of images, obtains a result of detection of a motion blur with respect to the group of images, derives the blur correction amount based on the obtained result, outputs the blur correction amount and controls a method of derivation of the blur correction amount. The apparatus includes a filter that extracts components of a first frequency band from the result, and derives the blur correction amount based on the components of the first frequency band associated with the motion blur extracted by the filter, and causes the first frequency band extracted by the filter to vary in accordance with the obtained status information.