Video codec - A video codec is a system for encoding video into a defined representation and decoding that representation into pictures.
Video compression picture types - Video compression picture types classify pictures by the prediction methods and reference relationships used to encode them.
Video content analysis - Video content analysis is the automated examination of video to extract information about what appears or happens over time.
Video imprint (computer vision) - A video imprint is a compact learned representation that aligns recurring visual features across video frames while retaining links back to where those...
Video magnification - Video magnification is the amplification of selected small changes over time in a video so that they become easier to see.
Video Multimethod Assessment Fusion - Video Multimethod Assessment Fusion, usually written Video Multi-Method Assessment Fusion or VMAF, is a perceptual video quality assessment method developed...
Vietoris - Rips filtration - A Vietoris - Rips filtration is a nested sequence of simplicial complexes built from distances between data points as a scale parameter increases.
View - A view is a named database query that presents its result as a relation users can query much like a table.
View morphing - View morphing is an image-based technique for creating transitions between views using projective geometry.
VIKOR method - The VIKOR method is a multicriteria decision-making method that ranks alternatives and identifies compromise choices using their shortfalls from ideal...
Viola - Jones object detection framework - The Viola - Jones object detection framework is a classical approach that combines efficiently computed rectangular image features, boosting-based feature...
Violin plot - A violin plot displays the distribution of a numerical variable using a smoothed density shape, usually mirrored around a central line.
Virtual adversarial training - Virtual adversarial training, or VAT, is a regularization method that encourages a model's predicted probability distribution to remain stable around each...
Virtual counts - Virtual counts are numerical values that represent prior information in certain probability models as if it contributed counts alongside observed data.
Virtual directory - In directory integration, a virtual directory is a service that presents a logical directory view over information held in one or more underlying sources.
Virtual intelligence - Virtual intelligence is a broad, context-dependent label for AI used within virtual or augmented environments.
Virtual private cloud - A virtual private cloud, or VPC, is a logically isolated virtual networking environment within a cloud provider's infrastructure.
Virtual private server - A virtual private server, or VPS, is a virtualized server environment offered with an allocation of computing resources for running applications and services.
Virtual sensing - Virtual sensing estimates a quantity that is difficult, costly or impractical to measure directly by using a model and other available measurements.
Virtual support vector machine - A virtual support vector machine is an SVM trained using artificial examples that represent transformations expected to preserve a class label.
Visibility mask - A visibility mask records which image locations provide visible, usable evidence for a particular view or synthesis step.
Visible differences predictor (VDP) - A visible differences predictor (VDP) is a perceptual image-comparison model that estimates whether people would notice differences between a reference...
Visual analytics - Visual analytics combines computational analysis with interactive visual representations to support human reasoning about data.
Visual hierarchy - Visual hierarchy is the arrangement and emphasis of visual elements so people can recognize relative importance and relationships.
Visual hull - A visual hull is a three-dimensional volume consistent with an object's silhouettes from a specified set of viewpoints.
Visual microphone - A visual microphone is a method that estimates sound from tiny sound-induced vibrations visible in video of an object.
Visual routine - A visual routine is a sequence of elementary visual operations used to determine a shape property or spatial relationship.
Visual temporal attention - Visual temporal attention is a mechanism that assigns different importance to visual information from different times in a sequence.
Visual tracking - Visual tracking is the estimation of an object's location or state across a sequence of images while maintaining correspondence with the same target over time.
Visual Turing Test - A Visual Turing Test is an evaluation approach that probes a computer vision system through questions about visual content.
Visualization (graphics) - Visualization, in the graphics sense, is the creation of visual representations that help people understand information, data or a concept.
Viterbi algorithm - Definition: The Viterbi algorithm finds the highest-scoring complete sequence of hidden states in a model whose score decomposes into suitable local...
Vivification - In description-logic knowledge representation, vivification can mean replacing a disjunctive statement with a more manageable generalization, such as a...
Vocabulary - A vocabulary is the collection of symbols a representation uses to express its subject matter.
Vocabulary-based transformation - Vocabulary-based transformation is an approach to translating data between systems by connecting their fields and values to shared meanings.
Vocabulary mismatch - Vocabulary mismatch occurs when people or systems use different words for the same or closely related meaning, preventing a useful match.
Vocabulary Reduction - Vocabulary reduction is a set of techniques for decreasing the number of distinct text units a language system represents or considers during a computation.
Voice computing - Voice computing is the use of spoken interaction to access information, enter content or control digital services.
Voice portal - A voice portal is an access point that brings together information or services through spoken interaction, often over a telephone connection.
Voice search - Voice search is the retrieval of information in response to a spoken query.
Voice user interface - A voice user interface, or VUI, is the part of a system through which a person interacts using speech.
Voiced sound - Definition: A voiced sound is a speech sound produced with vibration of the vocal folds.
Von Kries adaptation - Von Kries adaptation is a model of chromatic adaptation in which the three cone-response channels are adjusted by separate multiplicative gains.
Von Mises-Fisher distribution - The von Mises-Fisher distribution is a probability model for directions represented by unit-length vectors.
Voronoi cells - Voronoi cells divide a space among selected centers according to which center is nearest.
Voronoi graph - A Voronoi graph is a roadmap derived from locations that are equally close to two or more nearest obstacles or obstacle-boundary features.
Voting Classifier - A voting classifier combines predictions from several classification models into one class decision.
Voting Regressor - A voting regressor combines numerical predictions from several regression models, usually by averaging them.