Patent application number | Description | Published |
20080218612 | CAMERA USING MULTIPLE LENSES AND IMAGE SENSORS IN A RANGEFINDER CONFIGURATION TO PROVIDE A RANGE MAP - An electronic camera for producing an output image of a scene from a captured image signal includes a first imaging stage comprising a first image sensor for generating a first sensor output and a first lens for forming a first image of the scene on the first image sensor, and a second imaging stage comprising a second image sensor for generating a second sensor output and a second lens for forming a second image of the scene on the second image sensor, where the lenses have different focal lengths. A processing stage uses the sensor output from one of the imaging stages as the captured image signal and uses the images from both imaging stages to generate a range map identifying distances to the different portions of the scene. | 09-11-2008 |
20080292182 | NOISE REDUCED COLOR IMAGE USING PANCHROMATIC IMAGE - A method for producing a noise-reduced digital color image, includes providing an image having panchromatic pixels and color pixels corresponding to at least two color photoresponses; providing from the image a panchromatic image and at least one color image; and using the panchromatic image and the color image to produce the noise-reduced digital color image by setting a plurality of color characteristics equal to the corresponding panchromatic characteristics at each color pixel location. | 11-27-2008 |
20090051984 | IMAGE SENSOR HAVING CHECKERBOARD PATTERN - An image sensor for capturing a color image, comprising a two-dimensional array of pixels having a plurality of minimal repeating units wherein each repeating unit is composed of eight pixels having four panchromatic pixels, two pixels having the same color response, and two pixels having different color responses that are different than the pixels having the same color response, with the minimal repeating units tiled to cause each row or each column of the image sensor to have color pixels of a single color or to cause each row and each column to have color pixels of only two colors. | 02-26-2009 |
20100038317 | HEMOFILTRATION SYSTEM AND METHOD BASED ON MONITORED PATIENT PARAMETERS, SUPERVISORY CONTROL OF HEMOFILTRATION, AND ADAPTIVE CONTROL OF PUMPS FOR HEMOFILTRATION - A multipurpose hemofiltration system and method are disclosed for the removal of fluid and/or soluble waste from the blood of a patient. The system continuously monitors the flow rates of drained fluid, blood, and infusate. When necessary, the pumping rates of the infusate, drained fluid and blood are adjusted to remove a preselected amount of fluid from the blood in a preselected time period. A supervisory controller can monitor patient parameters, such as heart rate and blood pressure, and adjust the pumping rates accordingly. The supervisory controller uses fuzzy logic to make expert decisions, based upon a set of supervisory rules, to control each pumping rate to achieve a desired flow rate and to respond to fault conditions. An adaptive controller corrects temporal variations in the flow rate based upon an adaptive law and a control law. | 02-18-2010 |
20110096179 | METHOD FOR IMPROVED DIGITAL VIDEO IMAGE QUALITY - A method of producing a digital video with reduced motion blur or increased brightness, including capturing a digital video using an exposure time that reduces image blur; selecting a first series of sequential images from the digital video capture; combining pixel values of said images to produce a first intermediate image that is brighter than each of the selected sequential images; choosing and processing a reference image to create a second intermediate image that is less blurry than the first intermediate image; identifying moving regions among the selected sequential images; replacing pixel values of moving regions in the first intermediate image with corresponding pixel values from the second intermediate image to produce a first digital video image having reduced motion blur or increased brightness; and repeating these steps for a second series of sequential images that includes at least one image from the first series of sequential images. | 04-28-2011 |
20110096987 | NOISE REDUCED COLOR IMAGE USING PANCHROMATIC IMAGE - A method for producing a noise-reduced digital color image, includes providing an image having panchromatic pixels and color pixels corresponding to at least two color photoresponses; providing from the image a panchromatic image and at least one color image; and using the panchromatic image and the color image to produce the noise-reduced digital color image by setting a plurality of color characteristics equal to the corresponding panchromatic characteristics at each color pixel location. | 04-28-2011 |
20110187902 | DENOISING CFA IMAGES USING WEIGHTED PIXEL DIFFERENCES - A method for reducing noise in an image captured using a digital image sensor having pixels being arranged in a rectangular minimal repeating unit, comprising: computing first weighted pixel differences by combining first pixel differences between the pixel value of a central pixel and pixel values for nearby pixels of the first channel in a plurality of directions with corresponding local edge-responsive weighting values; computing second weighted pixel differences by combining second pixel differences between pixel values for pixels of at least one different channel in the plurality of directions with corresponding local edge-responsive weighting values; and computing a noise-reduced pixel value for the central pixel by combining the first and second weighted pixel differences with the pixel value for the central pixel. | 08-04-2011 |
20110188748 | ITERATIVELY DENOISING COLOR FILTER ARRAY IMAGES - A method for reducing noise in a color image captured using a digital image sensor having pixels being arranged in a rectangular minimal repeating unit. The method comprises, for a first color channel, determining noise reduced-pixel values using a first noise reducing process that includes computing weighted pixel differences by combining the pixel differences with corresponding local edge-responsive weighting values. The method further comprises a second noise reducing process that includes computing weighted chroma differences by combining chroma differences with corresponding local edge-responsive weighting values. | 08-04-2011 |
20120105673 | DIGITAL CAMERA PROVIDING HIGH DYNAMIC RANGE IMAGES - A method for producing a high-dynamic-range image, comprising receiving a low-resolution image of the scene having a first resolution and captured at a first exposure level; receiving a high-resolution image of a scene having a second resolution and captured at a second exposure level different from the first exposure level, the second resolution being greater than the first resolution; forming a representative low-resolution image from the high-resolution image; forming a residual image corresponding to differences between the high-resolution image and the representative low-resolution image; forming a low-resolution high-dynamic range image by combining the low-resolution image and the representative low-resolution image; producing the high-dynamic-range image by combining the low-resolution high dynamic range image and the residual image; and storing the high-dynamic-range image in a processor accessible memory. | 05-03-2012 |
20120105681 | METHOD FOR PRODUCING HIGH DYNAMIC RANGE IMAGES - A method for producing a high-dynamic-range image, comprising: receiving a low-resolution image of a scene having a first resolution and captured at a first exposure level; receiving a first high-resolution image of the scene having a second resolution and captured at a second exposure level different from the first exposure level, the second resolution being greater than the first resolution; forming a residual image corresponding to high spatial frequency content in the first high-resolution image; forming a second high-resolution image having the second resolution and the first exposure level by combining the low-resolution image and the residual image; producing the high-dynamic-range image by combining the first high-resolution image and the second high-resolution image; and storing the high-dynamic-range image in a processor accessible memory. | 05-03-2012 |