38 results about "Video signature" patented technology

Features are extracted from video and audio content that have a known temporal relationship with one another. The extracted features are used to generate video and audio signatures, which are assembled with an indication of the temporal relationship into a synchronization signature construct. the construct may be used to calculate synchronization errors between video and audio content received at a remote destination. Measures of confidence are generated at the remote destination to optimize processing and to provide an indication of reliability of the calculated synchronization error.

A method and apparatus are disclosed for providing a video signature representative of a content of a video signal. A method and apparatus are further disclosed for providing an audio signature representative of a content of an audio signal. A method and apparatus for detecting lip sync are further disclosed and take advantage of the method and apparatus disclosed for providing a video signature and an audio signature.

Methods and apparatus for detection and identification of duplicate or near-duplicate videos using a perceptual video signature are disclosed. The disclosed apparatus and methods (i) extract perceptual video features, (ii) identify unique and distinguishing perceptual features to generate a perceptual video signature, (iii) compute a perceptual video similarity measure based on the video edit distance, and (iv) search and detect duplicate and near-duplicate videos. A complete framework to detect unauthorized copying of videos on the Internet using the disclosed perceptual video signature is disclosed.

The apparatus and method implements, manages, and tracks on-line digital transactions via an escrow, including opening, servicing, real-time or near-real time status of the broker, title company, lender, vendor, buyer and seller, and closing of an escrow via a medium such as the internet. Multiple access methods are employed. The present invention provides computerization and internet type process implementation for escrow processes including, but not limited to, digital transaction coordination, digital status coordinators, seamless escrow transactions, on-line digital signatures, video signature authentication, digital certificate authentication, signature authentication, satellite and other wireless transmission of escrow transactions, voice digital instruction, the merging of voice with digital data transactions, set-top / WebTV digital escrow transmission, global digital escrow networking, and the like. The system includes appropriate data, application, and servers along with supporting LAN or WAN-based application to perform escrow services.

An improved raster engine adapted to render video data from a frame buffer to one of a plurality of disparate displays is disclosed which comprises an integral bounded video signature analyzer, a hardware cursor apparatus supporting dual scanned displays, programmatic support for multiple disparate display types, multi-mode programmable hardware blinking, programmable multiple color depth digital display interface, and programmable matrix controlled grayscale generation.

In a surgical system, a system controller executes a video signature identification and image control routine to maintain quality of a video image taken by a video camera located at a surgical site and provided on a video display. The system includes a video camera / light source handpiece for insertion into a patient body. A tool is inserted separately into the surgical site. Fluid input into the surgical site is provided by a liquid pump or by an insufflator. Video signals are analyzed and fluid input / output, fluid pressure, and / or tool operation is automatically controlled to maintain image quality of the surgical site without manual adjustments.

An improved raster engine adapted to render video data from a frame buffer to one of a plurality of disparate displays is disclosed which comprises an integral bounded video signature analyzer, a hardware cursor apparatus supporting dual scanned displays, programmatic support for multiple disparate display types, multi-mode programmable hardware blinking, programmable multiple color depth digital display interface, and programmable matrix controlled grayscale generation.

In accordance with an embodiment, a method of comparing a first group of frames to a second group of frames includes electronically receiving the first group of frames, selecting a group of frames from the first group of frames as a first key frame set, calculating a hash distance between an image hash for each frame in the first key frame set to an image hash of each frame of a second key frame set taken from second group of frames, and choosing frames in the first group of frames with a minimum hash distances to respective reference frames to form a series of minimum hash distances.

A system and method for tracking and managing playback of advertisements is disclosed. The system includes a processor configured to process the multimedia content, including advertisements, and generate a video signature / audio signature corresponding to the multimedia content. The video / audio signature is subsequently embedded / superimposed on at least one of the frames of the multimedia advertisement. The system further includes a plurality of trackers placed at predetermined geographic locations and configured to detect the broadcast television signal, and determine whether the video signature / audio signature is present in the broadcast signal. Subsequently, the tracker generates a report comprising at least a time stamp indicating the time of broadcast of the advertisement having the audio / video signature.

A method and apparatus are disclosed for providing a video signature representative of a content of a video signal. A method and apparatus are further disclosed for providing an audio signature representative of a content of an audio signal. A method and apparatus for detecting lip sync are further disclosed and take advantage of the method and apparatus disclosed for providing a video signature and an audio signature.