Patents by Inventor Felix Albu
Felix Albu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9160897Abstract: An estimated total camera motion between temporally proximate image frames is computed. A desired component of the estimated total camera motion is determined including distinguishing an undesired component of the estimated total camera motion, and including characterizing vector values of motion between the image frames. A counter is incremented for each pixel group having a summed luminance that is greater than a threshold. A counter may be decremented for pixels that are under a second threshold, or a zero bit may be applied to pixels below a single threshold. The threshold or thresholds is/are determined based on a dynamic luminance range of the sequence. The desired camera motion is computed including representing the vector values based on final values of counts for the image frames. A corrected image sequence is generated including the desired component of the estimated total camera motion, and excluding the undesired component.Type: GrantFiled: June 11, 2008Date of Patent: October 13, 2015Assignee: FotoNation LimitedInventors: Felix Albu, Corneliu Florea, Adrian Zamfir, Alexandru Drimbarean, Peter Corcoran
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Patent number: 8989516Abstract: An image processing apparatus is arranged to process a first relatively underexposed and sharp image of a scene, and a second relatively well exposed and blurred image, nominally of the same scene, the first and second images being derived from respective image sources. The apparatus provides a portion of the relatively first underexposed image as an input signal to an adaptive filter; and a corresponding portion of the second relatively well exposed image as a desired signal to the adaptive filter. The adaptive filter produces an output signal from the input signal and the desired signal; and an image generator constructs a first filtered image from the output signal, relatively less blurred than the second image.Type: GrantFiled: December 16, 2008Date of Patent: March 24, 2015Assignee: FotoNation LimitedInventors: Felix Albu, Adrian Zamfir
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Patent number: 8737766Abstract: A method and apparatus for providing image processing. For one embodiment of the invention, an image processing apparatus is arranged to process a first relatively underexposed and sharp image of a scene, and a second relatively well exposed and blurred image, nominally of the same scene, the first and second images being derived from respective image sources. The apparatus provides a portion of the relatively first underexposed image as an input signal to an adaptive filter; and a corresponding portion of the second relatively well exposed image as a desired signal to the adaptive filter. The adaptive filter produces an output signal from the input signal and the desired signal; and an image generator constructs a first filtered image from the output signal, relatively less blurred than the second image.Type: GrantFiled: February 20, 2013Date of Patent: May 27, 2014Assignee: DigitalOptics Corporation Europe LimitedInventors: Felix Albu, Eran Steinberg, Alexandru Drimbarean, Corneliu Florea, Adrian Zamfir, Peter Corcoran, Vlad Poenaru
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Patent number: 8705894Abstract: A measure of frame-to-frame rotation is determined. Integral projection vector gradients are determined and normalized for a pair of images. Locations of primary maximum and minimum peaks of the integral projection vector gradients are determined. Based on normalized distances between the primary maximum and minimum peaks, a global image rotation is determined.Type: GrantFiled: February 15, 2011Date of Patent: April 22, 2014Assignee: Digital Optics Corporation Europe LimitedInventors: Felix Albu, Larry Murray, Piotr Stec, Ilariu Raducan
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Patent number: 8698924Abstract: A technique is provided for generating sharp, well-exposed, color images from low-light images. A series of under-exposed images is acquired. A mean image is computed and a sum image is generated each based on the series of under-exposed images. Chrominance variables of pixels of the mean image are mapped to chrominance variables of pixels of the sum image. Chrominance values of pixels within the series of under-exposed images are replaced with chrominance values of the sum image. A set of sharp, well-exposed, color images is generated based on the series of under-exposed images with replaced chrominance values.Type: GrantFiled: November 8, 2010Date of Patent: April 15, 2014Assignee: DigitalOptics Corporation Europe LimitedInventors: Alexandru Drimbarean, Adrian Zamfir, Felix Albu, Vlad Poenaru, Corneliu Florea, Petronel Bigioi, Eran Steinberg, Peter Corcoran
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Publication number: 20140086509Abstract: An image registration method involves computing horizontal and vertical integral projection vectors for first and second distorted or partially distorted images or distortion-corrected images, or both. The images are registered by applying a translation, rotation and/or scale factor estimation between the first and second images on the horizontal and vertical integral projection vectors.Type: ApplicationFiled: July 22, 2013Publication date: March 27, 2014Applicant: DigitalOptics Corporation Europe LimitedInventor: Felix Albu
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Patent number: 8649627Abstract: A method and apparatus for providing image processing. For one embodiment of the invention, an image processing apparatus is arranged to process a first relatively underexposed and sharp image of a scene, and a second relatively well exposed and blurred image, nominally of the same scene, the first and second images being derived from respective image sources. The apparatus provides a portion of the relatively first underexposed image as an input signal to an adaptive filter; and a corresponding portion of the second relatively well exposed image as a desired signal to the adaptive filter. The adaptive filter produces an output signal from the input signal and the desired signal; and an image generator constructs a first filtered image from the output signal, relatively less blurred than the second image.Type: GrantFiled: February 20, 2013Date of Patent: February 11, 2014Assignee: DigitalOptics Corporation Europe LimitedInventors: Felix Albu, Eran Steinberg, Peter Corcoran, Alexandru Drimbarean, Adrian Zamfir, Corneliu Florea, Vlad Poenaru
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Patent number: 8649628Abstract: An adaptive motion estimation and deblurring technique for acquired digital images includes acquiring multiple digital images with a moving digital image acquisition device that includes an image sensor, including a relatively sharp, underexposed reference image and a blurred image. Anb initial approximate point spread function (PSF) is estimated corresponding to the moving of the device. A different DC offset point is determined and a second PSF is calculated based on the different DC offset point.Type: GrantFiled: January 7, 2013Date of Patent: February 11, 2014Assignee: DigitalOptics Corporation Europe LimitedInventors: Felix Albu, Alexandru Drimbarean, Adrian Zamfir, Corneliu Florea, Peter Corcoran
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Patent number: 8587665Abstract: A measure of frame-to-frame rotation is determined. A global XY alignment of a pair of frames is performed. Local XY alignments in at least two matching corner regions of the pair of images are determined after the global XY alignment. Based on differences between the local XY alignments, a global rotation is determined between the pair of frames.Type: GrantFiled: February 15, 2011Date of Patent: November 19, 2013Assignee: DigitalOptics Corporation Europe LimitedInventors: Felix Albu, Larry Murray, Piotr Stec, Ilariu Raducan
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Patent number: 8587666Abstract: A measure of frame-to-frame rotation is determined. A global XY alignment of a pair of image frames is performed. At least one section of each of the X and Y integral projection vectors is determined, where aligned global vectors demonstrate a significant localized difference. Based on X and Y locations of the at least one section of the X and Y integral projection vectors, location, relative velocity and/or approximate area of at least one moving object within the sequence of image frames is/are determined.Type: GrantFiled: February 15, 2011Date of Patent: November 19, 2013Assignee: DigitalOptics Corporation Europe LimitedInventors: Felix Albu, Larry Murray, Piotr Stec, Ilariu Raducan
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Publication number: 20130278784Abstract: An adaptive motion estimation and deblurring technique for acquired digital images includes acquiring multiple digital images with a moving digital image acquisition device that includes an image sensor, including a relatively sharp, underexposed reference image and a blurred image. An initial approximate point spread function (PSF) is estimated corresponding to the moving of the device. A different DC offset point is determined and a second PSF is calculated based on the different DC offset point.Type: ApplicationFiled: January 7, 2013Publication date: October 24, 2013Inventors: Felix Albu, Alexandru Drimbarean, Adrian Zamfir, Corneliu Florea, Peter Corcoran
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Publication number: 20130236094Abstract: A method and apparatus for providing image processing. For one embodiment of the invention, an image processing apparatus is arranged to process a first relatively underexposed and sharp image of a scene, and a second relatively well exposed and blurred image, nominally of the same scene, the first and second images being derived from respective image sources. The apparatus provides a portion of the relatively first underexposed image as an input signal to an adaptive filter; and a corresponding portion of the second relatively well exposed image as a desired signal to the adaptive filter. The adaptive filter produces an output signal from the input signal and the desired signal; and an image generator constructs a first filtered image from the output signal, relatively less blurred than the second image.Type: ApplicationFiled: February 20, 2013Publication date: September 12, 2013Applicant: DIGITALOPTICS CORPORATION EUROPE LIMITEDInventors: Felix Albu, Eran Steinberg, Peter Corcoran, Alexandru Drimbarean, Adrian Zamfir, Corneliu Florea, Vlad Poenaru
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Publication number: 20130229542Abstract: A method and apparatus for providing image processing. For one embodiment of the invention, an image processing apparatus is arranged to process a first relatively underexposed and sharp image of a scene, and a second relatively well exposed and blurred image, nominally of the same scene, the first and second images being derived from respective image sources. The apparatus provides a portion of the relatively first underexposed image as an input signal to an adaptive filter; and a corresponding portion of the second relatively well exposed image as a desired signal to the adaptive filter. The adaptive filter produces an output signal from the input signal and the desired signal; and an image generator constructs a first filtered image from the output signal, relatively less blurred than the second image.Type: ApplicationFiled: February 20, 2013Publication date: September 5, 2013Applicant: DIGITALOPTICS CORPORATION EUROPE LIMITEDInventors: Felix Albu, Eran Steinberg, Peter Corcoran, Alexandru Drimbarean, Adrian Zamfir, Corneliu Florea, Vlad Poenaru
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Patent number: 8508652Abstract: An autofocus method includes acquiring multiple images each having a camera lens focused at a different focus distance. A sharpest image is determined among the multiple images. Horizontal, vertical and/or diagonal integral projection (IP) vectors are computed for each of the multiple images. One or more IP vectors of the sharpest image is/are convoluted with multiple filters of different lengths to generate one or more filtered IP vectors for the sharpest image. Differences are computed between the one or more filtered IP vectors of the sharpest image and one or more IP vectors of at least one of the other images of the multiple images. At least one blur width is estimated between the sharpest image and the at least one of the other images of the multiple images as a minimum value among the computed differences over a selected range. The steps are repeated one or more times to obtain a sequence of estimated blur width values. A focus position is adjusted based on the sequence of estimated blur width values.Type: GrantFiled: February 3, 2011Date of Patent: August 13, 2013Assignee: DigitalOptics Corporation Europe LimitedInventors: Felix Albu, Vlad Poenaru, Alexandru Drimbarean
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Patent number: 8493460Abstract: An image registration method involves computing horizontal and vertical integral projection vectors for first and second distorted or partially distorted images. The images are registered by applying a scale factor estimation between the first and second images on the horizontal and vertical integral projection vectors.Type: GrantFiled: September 15, 2011Date of Patent: July 23, 2013Assignee: DigitalOptics Corporation Europe LimitedInventor: Felix Albu
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Patent number: 8493459Abstract: An image registration method involves computing horizontal and vertical integral projection vectors for first and second distorted or partially distorted images or distortion-corrected images, or both. The images are registered by applying a translation, rotation and/or scale factor estimation between the first and second images on the horizontal and vertical integral projection vectors.Type: GrantFiled: September 15, 2011Date of Patent: July 23, 2013Assignee: DigitalOptics Corporation Europe LimitedInventor: Felix Albu
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Patent number: 8417055Abstract: A method and apparatus for providing image processing. For one embodiment of the invention, an image processing apparatus is arranged to process a first relatively underexposed and sharp image of a scene, and a second relatively well exposed and blurred image, nominally of the same scene, the first and second images being derived from respective image sources. The apparatus provides a portion of the relatively first underexposed image as an input signal to an adaptive filter; and a corresponding portion of the second relatively well exposed image as a desired signal to the adaptive filter. The adaptive filter produces an output signal from the input signal and the desired signal; and an image generator constructs a first filtered image from the output signal, relatively less blurred than the second image.Type: GrantFiled: September 18, 2007Date of Patent: April 9, 2013Assignee: DigitalOptics Corporation Europe LimitedInventors: Felix Albu, Eran Steinberg, Alexandru Drimbarean, Corneliu Florea, Adrian Zamfir, Peter Corcoran, Vlad Poenaru
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Publication number: 20130070126Abstract: An image registration method involves computing horizontal and vertical integral projection vectors for first and second distorted or partially distorted images. The images are registered by applying a scale factor estimation between the first and second images on the horizontal and vertical integral projection vectors.Type: ApplicationFiled: September 15, 2011Publication date: March 21, 2013Applicant: DIGITALOPTICS CORPORATION EUROPE LIMITEDInventor: Felix Albu
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Publication number: 20130070125Abstract: An image registration method involves computing horizontal and vertical integral projection vectors for first and second distorted or partially distorted images or distortion-corrected images, or both. The images are registered by applying a translation, rotation and/or scale factor estimation between the first and second images on the horizontal and vertical integral projection vectors.Type: ApplicationFiled: September 15, 2011Publication date: March 21, 2013Applicant: DIGITALOPTICS CORPORATION EUROPE LIMITEDInventor: Felix Albu
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Patent number: 8351726Abstract: An adaptive motion estimation and deblurring technique for acquired digital images includes acquiring multiple digital images with a moving digital image acquisition device that includes an image sensor, including a relatively sharp, underexposed reference image and a blurred image. Anb initial approximate point spread function (PSF) is estimated corresponding to the moving of the device. A different DC offset point is determined and a second PSF is calculated based on the different DC offset point.Type: GrantFiled: June 21, 2010Date of Patent: January 8, 2013Assignee: DigitalOptics Corporation Europe LimitedInventors: Felix Albu, Alexandru Drimbarean, Adrian Zamfir, Corneliu Florea, Peter Corcoran