摘要:
In a video processing system (14), a method of detecting and compensating for motion of an image which includes the steps of: detecting a first pixel value, a second pixel value, and a third pixel value, the first pixel value of a first scan line in a first field, the second pixel value of a second scan line in the first field, and the third pixel value in a second field; providing a motion indicator based on the first, second, and third pixel values; selecting a plurality of interpolation coefficients from a memory based on the motion indicator signal; and providing an interpolated color space pixel based on a first color space pixel associated with the first pixel value, a second color space pixel associated with the second pixel value, and based on the plurality of interpolation coefficients.
摘要:
An electronic apparatus that includes a digital processor (12), a first digital pulse width modulator (304), a second digital pulse width modulator (306), a combining circuit (308), and a load (310). The digital processor (12) produces a first digital signal (314) and a second digital signal (316). The first digital pulse width modulator (304) is responsive to the first digital signal (314), and the second digital pulse width modulator (306) is responsive to the second digital signal (316). The combining circuit (308) is responsive to the first digital pulse width modulator (304) and the second digital pulse width modulator (306). The load (310) is responsive to the combining circuit (308).
摘要:
An apparatus that includes a logarithm based processor (216) having at least one digital logarithm converter (202) and a power amplifier (208) responsive to the logarithm based processor (216).
摘要:
A video signal is converted into compressed frame signals, each comprising a coefficient signal of block coefficient signals for each frame in a video image. Each of the block coefficient signals represents the pixels in a pixel map block (420) with the coefficients in a hybrid polynomial. The hybrid polynomial contains discrete cosine terms, a constant term separated from the discrete cosine terms, and polynomial terms extracted from the discrete cosine terms. Each block coefficient signal contains a background component representing a coefficient of the constant term, a linear component representing the coefficients of the polynomial terms, and a nonlinear component representing the coefficients of the discrete cosine terms.
摘要:
A method and system of identifying text in a handwriting input is provided. The system includes a feature extractor (30) and a classifier (32). The feature extractor (30) extracts a plurality of features from handwriting input. The classifier (32) classifies the handwriting input according to a discriminant function that is based on a polynomial expansion. The text is identified according to the discriminant function output.
摘要:
A system for controlling the movement of at least one limb of a person's body includes an interface unit in communication with the person's body for receiving an input signal. A polynomial processor generates a control signal as a polynomial function of the at least one input signal. A generator generates a functional electrical stimulation signal. A plurality of electrodes stimulates the movement of the at least one limb by introducing the functional electrical stimulation signal to the at least one of a plurality of inactive muscles.
摘要:
A pixel map signal is converted into a coefficient signal of block coefficient signals, each representing the pixels in a pixel map block (420) with the coefficients in a hybrid polynomial. The hybrid polynomial contains discrete cosine terms, a constant term separated from the discrete cosine terms, and polynomial terms. Each block coefficient signal contains a background component representing a coefficient of the constant term, a linear component representing the coefficients of a the polynomial terms, and a nonlinear component representing the coefficients of the discrete cosine terms. The background component represents constant, unchanging pixel values in a pixel map block (420), the linear component represents linearly changing pixel values in a pixel map block (420), and the nonlinear component represents nonlinear patterns in a pixel map block (420).
摘要:
A pixel map signal is separated into block signals, each representing pixels in a pixel map block (420) in a pixel map (410). The blocks signals each contain an overlap component having pixel values representing pixels contained both by the corresponding pixel map block (420) and an adjacent block. The pixel map signal is compressed by converting the block signals into a coefficient signal of block coefficient signals, each of which represents a pixel map block (420) with the coefficients in a hybrid polynomial. When the pixel map signal is decompressed, the pixel values in the overlap component for each pixel map block (420) are averaged with the pixel values in the overlap component for the adjacent block and replaced by the averaged pixel values in the corresponding pixel map block (420) and the adjacent pixel map block (420).
摘要:
Disclosed is a method for generating a high-resolution, real-time, digital video signal from an analog composite video signal such as an NTSC, PAL, or SECAM signal. The analog video signal is digitized and consecutive fields in the signal are merged to produce a frame. Non-uniform interpolation is performed between adjacent scan lines in the frame to generate the high-resolution video signal.
摘要:
A system and method of using a computer processor (34) to generate a solution to a linear system of equations is provided. The computer processor (34) executes a Jacobi iterative technique to produce outputs representing the solution. Multiplication operations required by the iterative technique are performed using logarithmic arithmetic. With logarithmic arithmetic, a multiplication operation is accomplished using addition. For a given n.times.n matrix A, the computer processor (34) can compute an inverse matrix A.sup.-1 by repeatedly executing the iterative technique to solve n linear systems.