We give an input/output characterization of the Teager-Kaiser operator, then we classify the root... more We give an input/output characterization of the Teager-Kaiser operator, then we classify the root signals (those that remain invariant) and the pre-constant signals (those that produce a constant output) of the operator. With the gained knowledge, a simple detector of sinusoidal signals and of their corresponding frequencies is designed. The methods used allow for a certain amount of generalization providing a paradigm of sorts for the design of quadratic and other polynomial filters.
We give an input/output characterization of the Teager-Kaiser operator, then we classify the root... more We give an input/output characterization of the Teager-Kaiser operator, then we classify the root signals (those that remain invariant) and the pre-constant signals (those that produce a constant output) of the operator. With the gained knowledge, a simple detector of sinusoidal signals and of their corresponding frequencies is designed. The methods used allow for a certain amount of generalization providing a paradigm of sorts for the design of quadratic and other polynomial filters.
ON THE PRE-CONSTANT SIGNALS OF THE TEAGER-KAISER OPERATOR Alfredo Restrepo Palacios, Lina Wedefor... more ON THE PRE-CONSTANT SIGNALS OF THE TEAGER-KAISER OPERATOR Alfredo Restrepo Palacios, Lina Wedefort and Julian Quiroga Laboratorio de Señales, Dpt. Ing. Eléctrica y Electrónica, Universidad de los Andes ...
2007 IEEE International Conference on Image Processing, 2007
The Teager-Kaiser operator is a discrete version of Teager's energy operator, advanced about 16 y... more The Teager-Kaiser operator is a discrete version of Teager's energy operator, advanced about 16 years ago. It is a filter of the moving window type and is commonly used as an estimator of the local energy contents of a signal; it is also used as a contrast enhancer of gray level images. We state some properties of a 2D version of the operator and its responses to common images. We characterize some of its root and preconstant images, and consider the case of separable images.
The Teager-Kaiser operator is a discrete version of Teager's energy operator, advanced about 16 y... more The Teager-Kaiser operator is a discrete version of Teager's energy operator, advanced about 16 years ago. It is a filter of the moving window type and is commonly used as an estimator of the local energy contents of a signal; it is also used as a contrast enhancer of gray level images. We state some properties of a 2D version of the operator and its responses to common images. We characterize some of its root and preconstant images, and consider the case of separable images.
We give an input/output characterization of the Teager-Kaiser operator, then we classify the root... more We give an input/output characterization of the Teager-Kaiser operator, then we classify the root signals (those that remain invariant) and the pre-constant signals (those that produce a constant output) of the operator. With the gained knowledge, a simple detector of sinusoidal signals and of their corresponding frequencies is designed. The methods used allow for a certain amount of generalization providing a paradigm of sorts for the design of quadratic and other polynomial filters.
We give an input/output characterization of the Teager-Kaiser operator, then we classify the root... more We give an input/output characterization of the Teager-Kaiser operator, then we classify the root signals (those that remain invariant) and the pre-constant signals (those that produce a constant output) of the operator. With the gained knowledge, a simple detector of sinusoidal signals and of their corresponding frequencies is designed. The methods used allow for a certain amount of generalization providing a paradigm of sorts for the design of quadratic and other polynomial filters.
ON THE PRE-CONSTANT SIGNALS OF THE TEAGER-KAISER OPERATOR Alfredo Restrepo Palacios, Lina Wedefor... more ON THE PRE-CONSTANT SIGNALS OF THE TEAGER-KAISER OPERATOR Alfredo Restrepo Palacios, Lina Wedefort and Julian Quiroga Laboratorio de Señales, Dpt. Ing. Eléctrica y Electrónica, Universidad de los Andes ...
2007 IEEE International Conference on Image Processing, 2007
The Teager-Kaiser operator is a discrete version of Teager's energy operator, advanced about 16 y... more The Teager-Kaiser operator is a discrete version of Teager's energy operator, advanced about 16 years ago. It is a filter of the moving window type and is commonly used as an estimator of the local energy contents of a signal; it is also used as a contrast enhancer of gray level images. We state some properties of a 2D version of the operator and its responses to common images. We characterize some of its root and preconstant images, and consider the case of separable images.
The Teager-Kaiser operator is a discrete version of Teager's energy operator, advanced about 16 y... more The Teager-Kaiser operator is a discrete version of Teager's energy operator, advanced about 16 years ago. It is a filter of the moving window type and is commonly used as an estimator of the local energy contents of a signal; it is also used as a contrast enhancer of gray level images. We state some properties of a 2D version of the operator and its responses to common images. We characterize some of its root and preconstant images, and consider the case of separable images.
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Papers by Julian Quiroga