Provided in the embodiments of the present application are a video watermark generation method and device, and a terminal, the method comprising: determining spatial-domain watermarks and time-domain values corresponding to each video image frame in a video file according to a preset spatial-domain watermark template and a time-domain watermark template, each spatial-domain watermark having the same number of pixel values; determining the edge distribution of each video image frame in the video file; and generating a watermark for the video file according to the spatial-domain watermarks and time-domain values which correspond to the each video image frame and the edge distribution of the each video image frame. The watermark generated by using the video watermark generation solution provided by the embodiments of the present application is better concealed and will not be easily discovered by malicious parties.

A method and apparatus for displaying branded video tags. An advertiser provides additional content associated with broadcast advertising content to a service provider that downloads the additional content to a digital video recorder (DVR). The service provider inserts command tags into the content that are intercepted by the DVR and interpreted as commands that instruct the DVR to perform specific actions when the DVR receives the stream from a broadcaster. The DVR intercepts and translates any tags inserted into the content stream while the DVR is playing the content stream. Tags can cause the DVR to display a branded video tag to the user which is a displayed icon that requests an interaction by the user and has an advertiser's logo(s) displayed in its vicinity.

In one embodiment, a method for preventing a difference attack on watermarked video content is implemented on at least one computing device and includes: manipulating values of a set of pixels to embed a forensic watermark in at least one video frame in a video content item, where the manipulating is in accordance with a given magnitude of change in the values, and introducing random noise to the at least one video frame, where the random noise is random noise of the given magnitude.

Methods, systems, and media for detecting and transforming rotated video content items are provided. The method comprises: receiving a video having a plurality of frames, wherein the video is associated with a first fingerprint; determining a rotation value associated with at least a portion of the plurality of frames to obtain a plurality of rotation values; determining an overall rotation value associated with the video based on a portion of the plurality of rotation values; determining whether at least one additional fingerprint of the video should be generated based on the overall rotation value; in response to determining that the at least one additional fingerprint of the video should be generated based on the overall rotation value, selecting a rotation transform based on the overall rotation value that rotates the plurality of frames of the video to an initial rotation position; applying the rotation transform to at least a portion of the plurality of frames of the video; generating a second fingerprint that represents the transformed video; and comparing the second fingerprint of the transformed video to a plurality of fingerprints associated with reference videos to determine whether the video corresponding to the transformed video matches one of the reference videos.

A signal adjustment apparatus includes a memory configured to store a first video obtained by imaging an object reflecting light that changes in time series in accordance with information embedded in the light, a processor coupled to the memory and configured to analyze the first video to specify an area in which the information is embedded in an image included in the first video, adjust a signal in the area, and output a second video including the adjusted signal.

A method and apparatus for secure transfer of previously broadcasted content enables the secure transfer of previously broadcasted content between DVRs on a computer network.

Various systems and methods may benefit from determination of environmental signatures in recordings. For example, such signatures may aid forensic analysis and alignment of media recordings, such as alignment of audio or video recordings. A method can include extracting electric network frequency signals from an image sequence of a video recording or an audio recording. The method can also include synchronizing the video recording or the audio recording with at least one other datum based on the electric network frequency signals.

A digital information recording apparatus includes a recording circuit for recording information of a retention period included in the digital information and indicating a period for permitting the digital information to be held in the recording medium, starting with a time at which the digital information is recorded on the recording medium; and information of a playback permission period included in the digital information and indicating a period for permitting the digital information to be played back starting with a time at which the information is reproduced initially following recording of the digital information on the recording medium, permitting temporary recording or copying for the information permitted for copy never or copy one generation.

Method and apparatus are disclosed for publishing locational copyrighted watermarking video. According to some embodiments, a method for embedding location information into a video comprises: separating the video into at least one key frame and at least one in-between frame set corresponding to the at least one key frame; receiving location data for the at least one key frame; encrypting the location data for the at least one key frame based on a location private key; and embedding the encrypted location data into the at least one key frame.

For automated post roll production, a selection module (320) generates a link video list (240) from a video database (110). Each link video (200) in the link video list (240) includes at least one clip characteristic (215) matching a video characteristic of a target video (105) and each link video (200) is associated with a video clip (210) and a video address (205). The selection module (320) further selects a link video 200 from the link video list (240) according to a policy (115). A script generation module (325) generates a mask script (285) that specifies a mask dimension (415), a mask mark in (420), and a mask location (410) of the video clip (210) of the selected link video (200) within the target video (105). The script generation module (325) further generates an annotation script (280) that specifies a link location for a navigation link.