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  2. Affine shape adaptation - Wikipedia

    en.wikipedia.org/wiki/Affine_shape_adaptation

    Equivalently, affine shape adaptation can be accomplished by iteratively warping a local image patch with affine transformations while applying a rotationally symmetric filter to the warped image patches. Provided that this iterative process converges, the resulting fixed point will be affine invariant.

  3. Tracing wheel - Wikipedia

    en.wikipedia.org/wiki/Tracing_wheel

    A tracing wheel, also known as a pattern wheel, pounce wheel, and dart wheel, is an instrument with multiple teeth on a wheel attached to a handle. The teeth can be either serrated or smooth. It is used to transfer markings from sewing patterns onto fabric with or without the use of tracing paper, [1] and can be used to make slotted perforations.

  4. Affine transformation - Wikipedia

    en.wikipedia.org/wiki/Affine_transformation

    Let X be an affine space over a field k, and V be its associated vector space. An affine transformation is a bijection f from X onto itself that is an affine map; this means that a linear map g from V to V is well defined by the equation () = (); here, as usual, the subtraction of two points denotes the free vector from the second point to the first one, and "well-defined" means that ...

  5. Researchers studied origami patterns for nearly 10 years to ...

    www.aol.com/researchers-studied-origami-patterns...

    Researchers from Seoul University, Harvard and a tire company teamed up to make a shape shifting wheel after analyzing the water bomb tessellation origami pattern.

  6. Thin plate spline - Wikipedia

    en.wikipedia.org/wiki/Thin_plate_spline

    Thin plate splines (TPS) are a spline-based technique for data interpolation and smoothing. "A spline is a function defined by polynomials in a piecewise manner." [1] [2] They were introduced to geometric design by Duchon. [3]

  7. Swivel weave - Wikipedia

    en.wikipedia.org/wiki/Swivel_weave

    Swivel weaving is a decorative technique that involves producing intricate designs on other weaves, such as a basic plain weave structure [3] or satin. [1] In swivel weaving, the weft yarns are used to create patterns on the fabric.

  8. Dobby loom - Wikipedia

    en.wikipedia.org/wiki/Dobby_loom

    The word dobby is a corruption of "draw boy," which refers to the weaver's helpers who used to control the warp thread by pulling on draw threads. A dobby loom is an alternative to a treadle loom. Both are floor looms in which every warp thread on the loom is attached to a single shaft using a device called a heddle. A shaft is sometimes known ...

  9. 'Calmcations' Are the Most Relaxing Way to Travel This Year - AOL

    www.aol.com/calmcations-most-relaxing-way-travel...

    Lake Tahoe – California/Nevada. Picture this: crystal-clear water, snowy mountains, and a calm, fresh breeze. Whether you’re boating, hiking, or simply sitting lakeside sipping a warm drink ...

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