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  2. Correspondence problem - Wikipedia

    en.wikipedia.org/wiki/Correspondence_problem

    The correspondence problem can occur in a stereo situation when two images of the same scene are used, or can be generalised to the N-view correspondence problem. In the latter case, the images may come from either N different cameras photographing at the same time or from one camera which is moving relative to the scene.

  3. Riemann–Hilbert correspondence - Wikipedia

    en.wikipedia.org/wiki/Riemann–Hilbert...

    Riemann–Hilbert correspondence (for regular singular connections): there is a functor Sol called the local solutions functor, that is an equivalence from the category of flat connections on algebraic vector bundles on X with regular singularities to the category of local systems of finite-dimensional complex vector spaces on X.

  4. 3D pose estimation - Wikipedia

    en.wikipedia.org/wiki/3D_Pose_Estimation

    The main idea is to determine the correspondences between 2D image features and points on the 3D model curve. (a) Reconstruct projection rays from the image points (b) Estimate the nearest point of each projection ray to a point on the 3D contour (c) Estimate the pose of the contour with the use of this correspondence set (d) goto (b)

  5. Correspondence analysis - Wikipedia

    en.wikipedia.org/wiki/Correspondence_analysis

    Correspondence analysis is performed on the data table, conceived as matrix C of size m × n where m is the number of rows and n is the number of columns. In the following mathematical description of the method capital letters in italics refer to a matrix while letters in italics refer to vectors.

  6. Multiple correspondence analysis - Wikipedia

    en.wikipedia.org/wiki/Multiple_correspondence...

    In statistics, multiple correspondence analysis (MCA) is a data analysis technique for nominal categorical data, used to detect and represent underlying structures in a data set. It does this by representing data as points in a low-dimensional Euclidean space .

  7. Models of communication - Wikipedia

    en.wikipedia.org/wiki/Models_of_communication

    For example, interaction models can be used to describe a conversation through instant messaging: the sender sends a message and then has to wait for the receiver to react. Another example is a question/answer session where one person asks a question and then waits for another person to answer.

  8. AdS/CFT correspondence - Wikipedia

    en.wikipedia.org/wiki/AdS/CFT_correspondence

    The problem of developing a non-perturbative formulation of string theory was one of the original motivations for studying the AdS/CFT correspondence. [37] As explained above, the correspondence provides several examples of quantum field theories that are equivalent to string theory on anti-de Sitter space.

  9. Time signature - Wikipedia

    en.wikipedia.org/wiki/Time_signature

    Most time signatures consist of two numerals, one stacked above the other: The lower numeral indicates the note value that the signature is counting. This number is always a power of 2 (unless the time signature is irrational), usually 2, 4 or 8, but less often 16 is also used, usually in Baroque music. 2 corresponds to the half note (minim), 4 to the quarter note (crotchet), 8 to the eighth ...