Patent application number | Description | Published |
20080266415 | Image Pickup Device and Encoded Data Outputting Method - A method of transferring encoded data and an imaging device executing the method thereof are disclosed. The method of processing an image signal in accordance with the present invention extracts valid data only from image data encoded and sequentially inputted by an encoding unit, and sequentially outputs the valid data to a receiving part, and, in case the valid data finish outputting before coming to an end of a predetermined duration, outputs dummy data to the receiving part for a remaining time of the predetermined duration. Therefore, it becomes possible to increase the process efficiency of the back-end chip and to reduce the power consumption. | 10-30-2008 |
20080291302 | Lens Shading Compensation Apparatus and Method, and Image Processor Using the Same - Disclosed are a lens shading compensation apparatus and a lens shading compensation method in an image sensor that compensate the difference in signal amplitude according to the position of pixels to preserve the quality of a primitive image. The lens shading compensation apparatus includes a pixel value analyzing part, an auto exposure value setting part, a central pixel detecting part, a table generating part, a pixel location calculating part, a mask image generating part and a compensation part. The above apparatus and method perform a color interpolation individually for red, green and blue, and then compensate a lens shading image for each color in accordance with its characteristics. Also the above apparatus and method can analyze and compensate a lens shading phenomenon without considering other colors or being interrupted by other colors. | 11-27-2008 |
20080291509 | Image Signal Processor And Deferred Vertical Synchronous Signal Outputting Method - A method of transferring a deferred vertical synchronous signal and an image signal processor executing the method thereof are disclosed. Once the vertical synchronous signal for a k | 11-27-2008 |
20090015701 | IMAGE PROCESSING METHOD AND DEVICE - An image processing method and a device thereof are disclosed. In an image signal processor of the present invention, a process clock rate or an output clock rate for a preview mode is applied differently from a process clock rate or an output clock rate for a capture mode. When performing the capture mode, however, the process clock rate can be controlled to be the same as or larger than the output clock rate. With the present invention, the lagging can be reduced during the image processing. | 01-15-2009 |
20090122167 | Method And Apparatus For Removing Noise By Dark Current Of Image Sensor - The present invention is directed to a method and an apparatus for removing noise in an image sensor, more specifically to a method and an apparatus for removing noise caused by a dark current. Through the method for removing noise caused by a dark current that comprises initializing a frame and receiving a digital image signal and converting a value of a clamp bit among bits of the pixel data, included in the digital image signal, to a predetermined value, wherein the clamp bit is a bit stream of sequential digits having a predetermined size comprising a least significant bit among the bits of the pixel data, clearer and shaper images can be displayed through the image sensor. | 05-14-2009 |
20090128670 | APPARATUS AND METHOD FOR COMPENSATING COLOR, AND IMAGE PROCESSOR, DIGITAL PROCESSING APPARATUS, RECORDING MEDIUM USING IT - An aspect of the present invention features an apparatus for compensating color deviation of an image that has uneven color deviation. The apparatus can comprises: a color deviation analyzing module that analyzes luminance of each color component of each pixel composing the image and determines a color component having the highest or lowest rate of luminance change as an object color component, wherein the rate of luminance change is analyzed in the direction from a central pixel to a corner pixel of the image; a compensation table generating module that creates a plurality of sections from a beginning point, depending on a distance from the central pixel, and generates a compensation table for boundary pixels of each section with compensation values that are produced based on the luminance of the object color component; a compensation image generating module that generates a compensation image for the whole image, using the compensation table; and a compensating module that compensates the color deviation by applying the compensation image to the image. | 05-21-2009 |
20090190853 | IMAGE NOISE REDUCTION APPARATUS AND METHOD, RECORDED MEDIUM RECORDED THE PROGRAM PERFORMING IT - An apparatus and a method of reducing a noise component existed in a surrounding part of an image photographed in an image sensor. According to an aspect of the present invention, an apparatus differentially reducing a noise of an image according to an area of the image includes a filter area selecting unit, selecting a filter area including a plurality of adjacent pixels based on an object pixel; and a noise reducing unit, computing pixel data of the object by using pixel data of the plurality of adjacent pixels in the filter area, whereas the filter area selecting unit determines the size of the filter area according to the distance between the object pixel and a center pixel of the image. The present invention can prevent a noise component of a surrounding part from being amplified by using a different low pass filter in a center part and a surrounding part of an image and can acquire the resolution and quality of the desired image. | 07-30-2009 |
20090195677 | METHOD AND APPARATUS FOR STORING LOCATION ADDRESS OF DEFECTIVE PIXEL - A method and apparatus for storing a location address of a defective pixel are disclosed. The method for storing a location address of a defective pixel includes (a) partitioning the pixel array into windows in a predetermined quantity of n, n being a natural number; (b) determining whether successively inputted pixel data is a defective pixel; (c) storing a count value of pertinent pixel data on a window corresponding to the defective pixel as the location address if the inputted pixel data is a defective pixel; and (d) repeating the steps (b) and (c) whenever pixel data corresponding to the pixel array is inputted. With the present invention, the location address can be efficiently stored. | 08-06-2009 |
20090256928 | Method and device for detecting color temperature - A method for detecting color temperature and an apparatus thereof are disclosed. According to the present invention, the apparatus for detecting color temperature converts RGB color information, generated by interpolating an image signal sequentially inputted in units of pixel from an image sensor, to a three-dimensional coordinate value of luminance, R-G color difference information, and B-G color difference information, and then renews the added value per color, if included in a filtering zone corresponding to a characteristic curve of the image sensor. Then, an average value per color is generated in units of frame, and the compensation rate per color is determined such that the average value per color becomes identical to each other. With the present invention, accurate colors can be displayed by detecting the color temperature of the current light source and correcting the distorted color information. | 10-15-2009 |
20090303353 | IMAGE BRIGHTNESS COMPENSATING APPARATUS AND METHOD, RECORDED MEDIUM RECORDED THE PROGRAM PERFORMING IT - An apparatus and a method of smoothing the brightness of an image photographed in an image sensor without amplifying a noise component of a surrounding part of the image are disclosed. The image brightness correction apparatus correcting the brightness of an image by using a correction curve can include an image input unit, receiving an image; a correction gradient selection unit, selecting a gradient of the correction curve corresponding to an object pixel, having the brightness desired to be corrected, of pixels of the image; a correction performance unit, converting original brightness of the object pixel into correction brightness according to the correction curve having the selected gradient; and an image output unit, outputting the image allowing the object pixel to have the correction brightness by the correction performance unit; whereas the correction curve increases the contrast of the corresponding correction brightness if the original brightness is the same as or smaller than a predetermined brightness, and the correction curve decreases the contrast of the corresponding correction brightness if the original brightness is larger than a predetermined brightness. With the present invention, a dynamic range of an image is smooth and the contrast of the image is acquired. | 12-10-2009 |
20090316024 | IMAGE EDGE DETECTION APPARATUS AND METHOD, IMAGE SHARPNESS EMPHASIZING APPARATUS AND METHOD, RECORDED MEDUIM RECORDED THE PROGRAM PERFORMING IT - The present invention relates to an apparatus for and a method of providing a sharper image by preventing the deterioration of an image caused by the difference in dynamic ranges of a center part and a surrounding part of the image photographed by an image sensor or by the difference of lens resolution. In accordance with an embodiment of the present invention, an image edge detection apparatus and a method thereof, a sharpness emphasis apparatus and a method thereof, and a recoding medium recorded with a program performing the method can acquire the sharpness and quality of a desired image by detecting an edge of a surrounding part by use of an edge detection filter having a different filter area size and/or a weight of a computed edge value in a center part and the surrounding part, respectively, of the image, and then by giving a weight to the detected edge. | 12-24-2009 |
20130258099 | Depth Estimation Device And Operating Method Using The Depth Estimation Device - A method of a estimating a depth including outputting an optical signal to an object and estimating a depth between the object and the depth estimation device in response to a gate signal and a reflected optical signal which is reflected from the object, wherein the optical signal includes a plurality of sequences and a phase of a pulse of the optical signal is randomly changed for each of the plurality of sequences. | 10-03-2013 |