38 results about "Video signature" patented technology

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.

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 facility for using a mobile device to search video content takes advantage of computing capacity on the mobile device to capture input through a camera and / or a microphone, extract an audio-video signature of the input in real time, and to perform progressive search. By extracting a joint audio-video signature from the input in real time as the input is received and sending the signature to the cloud to search similar video content through the layered audio-video indexing, the facility can provide progressive results of candidate videos for progressive signature captures.

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.

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.

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.

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.

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.

Methods and apparatuses, including computer program products, are described for authentication using a video signature. A computing device receives a request to access a secure resource, and the request includes a first video segment comprising a plurality of visual and audio elements. The computing device analyzes one or more of the plurality of visual and audio elements in the first video segment to determine a value associated with each of the one or more analyzed elements. The computing device calculates a total score for the first video segment based upon the value associated with each of the one or more analyzed elements. The computing device compares the total score for the first video segment to a score associated with a second video segment associated with the computing device. The computing device determines whether access to the secure resource is permitted based upon the comparison step.

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.

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.

A video signature system and method. A unique identifier for an agreement document is generated. Consecutive video frames with the unique identifier are captured for each party to the agreement.

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.

Video signatures are generated when a small change in video information between consecutive frames N-1 and N is followed by a large change in video information between consecutive frames N and N+1. Information from frames N and / or N+1 is used to form a video signature.

The video signature generation device includes a visual feature extraction unit that extracts a visual feature to be used for identifying a video based on features of a plurality of pairs of sub-regions in the video; and a confidence value calculation unit that calculates a confidence value of the visual feature, in which if the video is a particular video, the confidence value calculation unit calculates a confidence value having a smaller value compared with the case of a video other than the particular video.

The invention discloses a video signature verification and evaluation tool and method based on the GB35114 standard. The video signature verification and evaluation tool comprises: a data set storagemodule which is used for storing test data support data sets, wherein the test data support data set comprises a data set and a key set, the data set comprises a cryptographic hash algorithm salt value data set, a video signature forward test data set and a video signature reverse test data set, and the key set comprises an asymmetric encryption private key set and an asymmetric decryption publickey set; and a video signature and signature verification evaluation tool which is in communication connection with the data set storage module and the tested equipment, and is used for calling the corresponding key set and / or data set from the data set storage module, sending the key set and / or data set to the tested equipment, and testing whether the signature and / or signature verification function and performance of the tested equipment meet / meets the GB35114 standard. According to the invention, a plurality of disordered images related to video security in the existing public security video monitoring network can be solved.

The invention discloses a video identification method, system and device based on pattern mutation frame and feature calculation. The method comprises the following steps of: calculating the pattern data of each picture frame in the video; according to the pattern data of the picture, calculating the pattern similarity between two adjacent pictures; comparing the similarities of image patterns between two adjacent frames to obtain abrupt frames; obtaining a characteristic code to be identified according to the abrupt change frame; according to the pre-stored video characteristic code, searching and matching the characteristic code to be identified, and obtaining the video recognition result; Wherein the to-be-identified signature and the video signature are both in a text format. The invention can avoid missed judgment and misjudgment, improve the identification accuracy, greatly reduce the difficulty of sample library retrieval, has low complexity, and can be widely applied in the field of image processing technology.

A video signature system and method. A unique identifier for an agreement document is generated. Consecutive video frames with the unique identifier are captured for each party to the agreement.

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.

The invention provides a motion vector projection matrix based video matching method for an H.264 / AVC compression domain, belongs to the field of handling of videos, and aims at solving the problems that all videos are to be uncompressed and the calculation load is large in the traditional video matching method. The method is that motion vectors extracted from H.264 compression code stream are processed by time domain equalization and space domain equalization, then projected to a gaussian random matrix and subjected to quartile quantification to generate a video signature, and finally the video signature is used for video matching and searching, and therefore, the step of completely uncompressing the videos can be saved, and moreover, the calculation complexity is effectively reduced under a good matching effect, and lots of search time can be saved.

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.

The present application discloses a method for encrypting digital contract document between contractors, comprising: initiating a video signature by contractors of the participants; generating a hash code; generating a legal agreement, wherein the hash code is displayed at the legal agreement; and recording while reading the hash code at the legal agreement orally. The step of generating the hash code further comprises generating first tokens for the contractors of the participants. In addition, after recording while reading the hash code at the legal agreement orally, the method further comprises: accepting invitation for signing by attesting witness; signing for verification by the attesting witness; converting all procedure to data; uploading the data to a cloud system; generating a receipt with a hash code and backed up tokens; scanning the hash code to view the digital contract document; distributing the backed up tokens to the attesting witness.

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.