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used for image enhancement and feature extraction that can be expressed via a linear combination of a small set of rotated versions of itself. As an example, the oriented first derivative of a 2D Gaussian is a steerable filter. The oriented first order derivative can be obtained by taking the
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of a unit vector oriented in a specific direction with the gradient. The basis filters are the partial derivatives of a 2D Gaussian with respect to
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Steerable filters may be designed as approximations of a given filter shape up to a desired error or computational complexity.
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The process by which the oriented filter is synthesized at any given angle is known as
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for antenna arrays. Applications of steerable filters include
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IEEE Transactions on
Pattern Analysis and Machine Intelligence
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IEEE Transactions on
Pattern Analysis and Machine Intelligence
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may be too technical for most readers to understand
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