Abstract: A method for correcting an image from defects and filtering from Gaussian noise corrects each pixel of the image when it is considered defective and filters it from Gaussian noise in one-pass. The one-pass improves the speed for performing the correcting and filtering. The drawbacks associated with choosing incompatible defect correction and filtering operations are overcome.

Abstract: An image sensor array of active pixel elements is arranged in rows and columns. Each column has an output circuit for reading out pixel image signals. The output circuit includes a pair of sample capacitors, a switching circuit operable based upon pixel switches for applying pixel voltages to the pair of sample capacitors. At least one optically masked pixel is provided so that output image signals obtained therefrom represent substantially only the column fixed pattern noise (FPN). An image processing circuit records the column FPN for each column from the optically masked pixels, records the image signal from the sensor array of active pixels, and subtracts the column FPN column-wise from the image signal.

Abstract: The present invention sets out to make available a method for reducing noise in an image sequence. This method can be implemented in an acquisition device such as a digital video camera or the like. The aim of this invention is attained with a method for filtering a sequence of digital images in CFA format.

Abstract: A method for correcting an image from defects and filtering from Gaussian noise corrects each pixel of the image when it is considered defective and filters it from Gaussian noise in one-pass. The one-pass improves the speed for performing the correcting and filtering. The drawbacks associated with choosing incompatible defect correction and filtering operations are overcome.

Abstract: A method for correcting an image from defects and filtering from Gaussian noise corrects each pixel of the image when it is considered defective and filters it from Gaussian noise in one-pass. The one-pass improves the speed for performing the correcting and filtering. The drawbacks associated with choosing incompatible defect correction and filtering operations are overcome.

Abstract: A method of filtering an image filter is disclosed. The filter is provided for a digital camera including image sensors sensitive to light, a color filter placed over sensitive elements of the sensors and patterned according to a Bayer mosaic pattern layout and an interpolation algorithm joining together the digital information provided by differently colored adjacent pixels in said Bayer pattern. The filter is adaptive and includes a noise level computation block for operating directly on a said Bayer pattern data set of for each color channel thus removing noise while simultaneously preserving picture detail.

Abstract: A method of filtering an image filter is disclosed. The filter is provided for a digital camera including image sensors sensitive to light, a color filter placed over sensitive elements of the sensors and patterned according to a Bayer mosaic pattern layout and an interpolation algorithm joining together the digital information provided by differently colored adjacent pixels in said Bayer pattern. The filter is adaptive and includes a noise level computation block for operating directly on a said Bayer pattern data set of for each color channel thus removing noise while simultaneously preserving picture detail.

Abstract: A method for estimating the white Gaussian noise level that corrupts a digital image by discriminating homogeneous blocks from blocks containing a textured area and skipping these last blocks when evaluating the noise standard deviation.

Abstract: A method for correcting an image from defects and filtering from Gaussian noise corrects each pixel of the image when it is considered defective and filters it from Gaussian noise in one-pass. The one-pass improves the speed for performing the correcting and filtering. The drawbacks associated with choosing incompatible defect correction and filtering operations are overcome.

Abstract: An image sensor array of active pixel elements is arranged in rows and columns. Each column has an output circuit for reading out pixel image signals. The output circuit includes a pair of sample capacitors, a switching circuit operable based upon pixel switches for applying pixel voltages to the pair of sample capacitors. At least one optically masked pixel is provided so that output image signals obtained therefrom represent substantially only the column fixed pattern noise (FPN). An image processing circuit records the column FPN for each column from the optically masked pixels, records the image signal from the sensor array of active pixels, and subtracts the column FPN column-wise from the image signal.

Abstract: A method for filtering the noise of a sequence of digital images in CFA format comprising the following phases:

Abstract: A method of filtering an image filter is disclosed. The filter is provided for a digital camera including image sensors sensitive to light, a color filter placed over sensitive elements of the sensors and patterned according to a Bayer mosaic pattern layout and an interpolation algorithm joining together the digital information provided by differently colored adjacent pixels in said Bayer pattern. The filter is adaptive and includes a noise level computation block for operating directly on a said Bayer pattern data set of for each color channel thus removing noise while simultaneously preserving picture detail.

Abstract: Automatic device for guiding and loading magnetic tape cassettes into a machine which loads tape onto the cassettes. The device includes an inlet funnel chute wherein a sensor determines the open side of the cassette. The cassette is then dropped onto a rotatable plate wherein sensors sense the location of the screws in the cassette and then the cassette is oriented for and passes to a second rotatable mechanism for righting the cassette. A logic unit evaluates the information from the two sensors and controls the rotatable plate and second rotatable mechanism to properly orient and righten the cassettes for the next station.

Abstract: A locking arrangement of a tape spool hub with respect to a rotating shaft is obtained by outwardly extendable levers that press the tape spool hub to a rotary drive such that the spool is centered in a driving position on a support base on the rotating shaft and is also prevented from accidentally falling off the support base.

Abstract: A pneumatic arrangement for the tensioning of a tape in a machine for loading magnetic tape onto a cassette, having a closed tensioning mechanism containing container that is under a vacuum for forming a tension loop in the tape and having curved elements for the guiding the tape at the inlet and outlet of the container, wherein the tensioning mechanism container and the outlet guiding element are pivotably mounted to be controllably moved between two indicated positions in order to be able to align the outlet guiding element at one instance, to a first processing station of the machine and, at another instance, to a second processing station of the machine without causing undesirable vibrations of the tape itself.

Abstract: The tape splicing machine comprises feed means for intermittently feeding adhesive tape from a continuous roll to a mobile head provided with sucking and blowing means and with cutting means. Said feed means comprise a grooved wheel partly wrapped by the tape and a support and guide element provided with sucking and blowing means. Said element is moved periodically to and from the head so as to transfer subsequent portions of the tape from the grooved wheel to the head.

Abstract: A machine for winding magnetic tapes onto cassettes with a preparation assembly and a filling assembly disposed one in front of the other. The filling assembly has support and unwinding means for a reel of magnetic tape, a support and filling seat for the cassette and a cutting and jointing area comprising cutting means and jointing means. The preparation assembly comprises in turn a temporary support seat for the empty cassette and extractor means operable in such a manner as to extract a middle portion of connecting tape from the empty casette and dispose it in front of the cutting and jointing area of the filling assembly. First transfer means are operable to transfer the cassette from the temporary support seat of the preparation assembly to the support and filling seat of the filling assembly, and second transfer means operable to simultaneously transfer the already extracted connecting tape from the preparation assembly to the cutting and jointing area of the filling assembly.

Abstract: This invention relates to a device for feeding, with the required orientation, substantially parallelepiped flat bodies comprising aspects of asymmetry, in particular cassettes for magnetic tapes. The device according to the invention comprises a vertically extending tubular loader of substantially rectangular cross-section for a plurality of stacked flat bodies, an expulsion member for transversely push out the lowest stacked body, a chute for collecting and conveying said lowest body towards an outlet seat provided with orientation sensing structure, and a tilting member located at the inlet end of said chute and driven by said sensing structure to cause tilting of the pushed out body on one side or the other according to the detected orientation of the same body.