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| Number | Title | Issue Date |
| 8189068 | Apparatus and method for detecting flicker noise and computer readable medium stored thereon computer executable instructions for performing the method An apparatus for detecting flicker noise disclosed in the present invention comprises an output unit for outputting a standard data for flicker noise judgment using a statistical calculation value for each calculated line based on brightness information of pixels fo... | 05/29/2012 |
| 8169502 | Video camera An image sensor has an imaging surface irradiated with an optical image of an object scene, and repeatedly generates an object scene image. A CPU repeatedly determines whether or not a specific variation exceeding a reference is generated in the object scene capture... | 05/01/2012 |
| 8144213 | Imaging device, integrated circuit, and imaging method for encoding image frames based on detected flicker of a light source A frame brightness detecting unit 15 detects a frame brightness value of each of a plurality of image frames. A flicker spectrum detecting unit 16 detects, from the frame brightness values of 512 frames, spectrum values at frequencies, such as 100 Hz, ... | 03/27/2012 |
| 8106963 | Flicker correcting device and flicker correcting method Provided are a flicker correcting device and a flicker correcting method which are capable of reducing the frequency of occurrence of a flicker during detection of the flicker. A nonvolatile memory stores information on a power source frequency of illumination under... | 01/31/2012 |
| 8102437 | Image sensing apparatus and control method therefor wherein the frame rate during autofocus is adjusted according to a detected flicker In a case in which flickers are detected from a live-view image, at least one of a start timing and an end timing of charge accumulation at an image sensor is fixed by setting the image-sensing frame rate during execution of image-sensing plane AF to a value synchro... | 01/24/2012 |
| 8081235 | Image pickup apparatus and flicker detection method therefor An image pickup apparatus capable of accurately detecting a flicker in a short time period without regard to a state of object and a photography scene. A signal processing circuit reads out an n-th line of an image subjected to collective reset/collective transfer r... | 12/20/2011 |
| 8072506 | Method for flicker detection in image signal The present invention provides an effective flicker detection method performing a motion compensation. The present invention includes the steps of: calculating a luminance difference between neighboring pixels; summing up the luminance difference in a specific direc... | 12/06/2011 |
| 8068148 | Automatic flicker correction in an image capture device The disclosure describes flicker detection and correction techniques to improve the quality of captured imagery, such as video or still images. In particular, this disclosure describes flicker correction techniques that compare different image frames to detect flick... | 11/29/2011 |
| 8045016 | Video camera with flicker reduction function, and method for flicker reduction To reduce flicker appropriately according to illumination condition of an imaging subject, a video camera is provided. The video camera includes an imaging unit for generating a subject image; a superimposing image generator for generating a superimposing image; an ... | 10/25/2011 |
| 8040392 | Flicker correcting method, flicker correcting circuit, and imaging device using them An arithmetic processing section executes an arithmetic process on a flicker correction signal output from a flicker correction signal outputting section and corresponding to the flicker component contained in a video signal of each of specific periods and the video... | 10/18/2011 |
| 8004578 | Automatic flicker detection and correction apparatus and method in a video capture device To automatically detect and correct flickers in a video capture device, a frame number generator receives a plurality of frames and generates frame numbers. A storage device stores brightness values of partial pixels of a frame numbered 1. An extractor extracts brig... | 08/23/2011 |
| 7995112 | Image-processing apparatus and image-pickup apparatus An image-processing apparatus includes an integration section to integrate an image signal in more than one unit of horizontal synchronization period; an interpolation section to carry out an interpolation on the basis of integration values output by the integration... | 08/09/2011 |
| 7965323 | Flicker detecting circuit and method in image sensor A circuit includes a luminance average value output unit for extracting luminance values from pixel data of the first and the second frames to generate first luminance average values for pixel lines of the first frame and second luminance average values for pixel li... | 06/21/2011 |
| 7936379 | Camera with automatic fluorescent lighting mode A novel method and apparatus for controlling operation of a photosensor array in a portable electronic device to reduce flicker resulting from fluorescent light having a periodic intensity. The method comprises selecting a time zone in which the device is to be oper... | 05/03/2011 |
| 7920175 | Electronic still camera performing composition of images and image capturing method therefor An object of this invention is to suppress both the influence of a change in image quality by flicker and the influence of degradation of the image quality by a camera shake when an electronic still camera takes a picture under illumination having flicker. In an ele... | 04/05/2011 |
| 7911505 | Detecting illuminant flicker A method of determining when an image capture device with a rolling shutter is in an environment having a flickering illuminant by using autocorrelation or frequency analysis of difference vectors produced from first and second captured images. ... | 03/22/2011 |
| 7825959 | System and method for flicker DC offset detection and correction The present disclosure provides a method for detecting flicker DC voltage offset. The method includes receiving an output signal of an image sensor, the output signal comprising a reference signal and an image signal, and generating a combined signal by combining th... | 11/02/2010 |
| 7821547 | Image sensing apparatus that use sensors capable of carrying out XY addressing type scanning and driving control method An image sensing apparatus has a first setting unit that sets a charge accumulation period in an image sensor to an integral multiple of ½ a flicker period, a second setting unit that, when a horizontal scan period, which is a period after commencement of reading o... | 10/26/2010 |
| 7777787 | Preventing flicker effects in video electronic devices The specification and drawings present a new method, apparatus and software product for reducing flicker effects in electronic devices (e.g., a video camera, a camera-phone mobile device, a portable electronic device, etc.) by reducing an optical intensity of a vide... | 08/17/2010 |
| 7764312 | Flicker correction method and device, and imaging device Even when the light intensity of the light source varies, the flicker correction can thus be made flexibly. The present invention provides a flicker correction method comprising the steps of predicting, from an image of a present flicker-corrected frame, a flicker o... | 07/27/2010 |
| 7750949 | Automatic flicker frequency detection device and method An image device, such as a digital camera, detects specific repeating patterns of signal variations by processing columnar information from the device's two-dimensional sensor array used to generate images. In one embodiment, the columnar information is derived from... | 07/06/2010 |
| 7705893 | Imaging apparatus and flicker reduction method An XY address scanning-type imaging apparatus, such as a CMOS imaging apparatus, having a high-speed shutter which is capable of reducing fluorescent-lamp flicker components and which enhances electronic camera-shake correction. When the vertical synchronization fre... | 04/27/2010 |
| 7683941 | Image pickup apparatus As to an image signal of a solid-state image pickup device, an average value calculating unit calculates average values of pixel values of individual color components constituting an image of each frame. A gain calculating unit calculates, for the number of frames i... | 03/23/2010 |
| 7667740 | Elimination of modulated light effects in rolling shutter CMOS sensor images Disclosed are digital imaging devices that embody a method for eliminating modulated light effects in rolling shutter CMOS sensor images. The digital imaging device comprises an image sensor utilizing an electronic rolling shutter, a processor and firmware for imple... | 02/23/2010 |
| 7656436 | Flicker reduction method, image pickup device, and flicker reduction circuit A system and method in which a fluorescent light flicker characteristic of an XY addressing type image pickup device such as a CMOS image pickup device is accurately detected and reliably and sufficiently reduced. This is achieved through signal processing without u... | 02/02/2010 |
| 7639284 | Method for determining photographic environment and imaging apparatus An NTSC imaging apparatus, in which the shutter speed is set to a first value other than N/120 second, and a flicker detecting process is performed on a video signal obtained at the first shutter speed to extract a particular frequency component. When the level of t... | 12/29/2009 |
| 7636109 | Digital camera A digital camera capable of accurately detecting flicker even while a video image is displayed on a display device is provided. In a digital camera, a video image is displayed on a display device 40 serving as a viewfinder for photographing based on a display... | 12/22/2009 |
| 7633533 | Flicker frequency detection method and related device A flicker frequency detection method includes defining a plurality of adjacent sensing sections of the same size on a display panel based on an M Hz frequency, an N Hz frequency and the panel resolution, calculating a reference average signal detected by a first sen... | 12/15/2009 |
| 7598987 | Flicker detection gain control circuit, digital imaging system, and method A gain control circuit includes a light detector for generating an amount of current based on received light and a first switch for controlling the amount of current from the light detector delivered to a node. The gain control circuit also includes a charge storage... | 10/06/2009 |
| 7589763 | Flicker correction method and device, and imaging device A flicker is corrected with consideration given to the influence of noises. The present invention provides a flicker correction method in which a flicker is corrected by subtracting a flicker correction signal from an image signal, the method including the steps of ... | 09/15/2009 |
| 7561190 | Method and system to reduce flicker artifacts in captured images In one embodiment, a method for controlling artifacts in an image due to a presence of flicker in ambient light is provided. The method comprises determining a power frequency for the ambient light; determining a magnitude and phase of flicker fluctuation in the ima... | 07/14/2009 |
| 7538799 | System and method for flicker detection in digital imaging A system and method for detecting flicker in a digital image. The system and method detects flicker by performing a frame-to-frame comparison of image data. The frame-to-frame comparison of image data is based on dividing each image into multiple columns, and perfor... | 05/26/2009 |
| 7528866 | Method and apparatus for managing integration time of imagers The integration time for an imager is adjusted to be an integer multiple of the light intensity received by the imager to reduce or eliminate flickering. ... | 05/05/2009 |
| 7515179 | Method for integrating image sensor Disclosed is a method for integrating an image sensor capable of removing a flicker noise without causing any burdens on a hardware due to setting up additional logics. The method for integrating an exposure time of an image sensor employing a line scan method, incl... | 04/07/2009 |
| 7502054 | Automatic detection of fluorescent flicker in video images A method for detecting the presence of flicker in video images includes obtaining luminance data from sampled image fields and analyzing the luminance data to obtain a digital number characterizing the brightness of the luminance data. Frequency analysis is performe... | 03/10/2009 |
| 7471315 | Apparatus and method for detecting and compensating for illuminant intensity changes within an image An apparatus such as a digital camera includes an image sensor array adapted to capture a scene into electrical values and a reference detector proximal to the sensor array for detecting illuminant intensities. The reference detector at least partially surrounds the... | 12/30/2008 |
| 7471316 | Image capture device capable of flicker detection The invention is an image capture device having an image capture element. The device further includes a flicker detection portion which extracts flicker component signals corresponding to periodic changes in brightness in an image capture environment from image sign... | 12/30/2008 |
| 7420595 | Image sensor for detecting flicker noise and method thereof An image sensor has improved functions so as to automatically eliminate a flicker noise. For the purpose, the image sensor includes a pixel array for capturing information about an image provided from the outside and having N pixel rows and M pixel columns for maxim... | 09/02/2008 |
| 7420602 | Cmos imager for cellular applications and methods of using such Systems, methods and devices related to detecting and transmitting images. Imaging systems and devices, as well as methods of using such that are provided herein include flicker detection and/or correction; and/or built-in self test associated with various analog ci... | 09/02/2008 |
| 7411615 | Image pickup apparatus An image pickup apparatus comprises an image pickup unit including a plurality of photoelectric conversion units for picking up an image of an object; and a filter, arranged on the image pickup unit, for reducing a light amount that causes a flicker. ... | 08/12/2008 |
