Patent application number | Description | Published |
20100020192 | METHOD OF CONTROLLING AUTO WHITE BALANCE - There is provided a method of controlling auto white balance that can be appropriately used for a camera of an electric device that uses a wide-angle or a super wide-angle lens. A method of controlling auto white balance according to an aspect of the invention may include: converting a color space of an input image from an RGB color space into a YCbCr color space; dividing the input image into a plurality of divided regions; selecting a predetermined number of divided regions in order determined by mean values of Y of pixels included in the plurality of divided regions; comparing a predetermined threshold value with the number of pixels having values of Cb and Cr within a predetermined Cb-Cr range among the pixels included in the selected divided regions in order to determine a white area; and calculating auto white balance gains by using mean values of Y, mean values of Cb, and mean values of Cr of the pixels included in each of the selected divided regions when the number of pixels within the predetermined Cb-Cr range is greater than the threshold value. | 01-28-2010 |
20100134650 | METHOD FOR CONTROLLING AUTO-EXPOSURE - An auto-exposure control method includes: creating an exposure table and an analog gain table including an exposure time and an analog gain of an image sensor set according to an index, respectively; calculating an average luminance value of an image frame obtained by the image sensor; checking whether or not the average luminance value is within a pre-set range including a prescribed final target value; if the average luminance value is not within the pre-set range, determining a shift step from indexes which have been applied to a current image frame according to the difference between the average luminance value and the final target value in order to determine indexes of the exposure table and the analog gain table to be applied to a next image frame; and repeatedly performing of reading an exposure time and an analog gain corresponding to the indexes shifted by the shift step determined from the indexes applied to the current image frame, from the exposure table and the analog gain table, applying the same to the image sensor, obtaining a next image frame, and calculating an average luminance value. | 06-03-2010 |
20120044357 | Image processing apparatus and method for night vision - There are provided an image processing apparatus and an image processing method for night vision that can generate a night vision image in which the overall quality thereof is maintained to be excellent and an obstacle is easily distinguished. The image processing apparatus for night vision includes: a brightness improving unit improving the brightness of an inputted infrared image; an obstacle judging unit judging whether an obstacle is present by analyzing an infrared image in which brightness is improved by the brightness improving unit; an obstacle region separating unit separating an image of a region judged as the obstacle by the obstacle judging unit; and an image synthesizing unit synthesizing the image of the region judged as the obstacle separated by the obstacle region separating unit with the inputted infrared image. | 02-23-2012 |
20120057796 | APPARATUS AND METHOD OF REDUCING NOISE - There are provided an apparatus and a method of reducing noise. The apparatus of reducing noise includes: an edge determining module determining whether each pixel of an image corresponds to an edge; a low pass filter module performing low pass filtering of the image in two directions, i.e., vertical and horizontal directions and performing low pass filtering only for the pixel determined not to be the edge; a filter selecting module selecting a filter having a flexible size to be applied to a mask region for each of the images low pass filtered in the two directions based on the average brightness of the entire region and the average brightness of the mask region having a predetermined size; a sigma filter module sigma filtering the mask region using the selected filter for each of the images low pass filtered in the two directions; and an averaging module averaging the image sigma filtered in the two directions, thereby making it possible to adaptively reduce noise and prevent loss of the edge due to blurring of the image. | 03-08-2012 |
20120170863 | METHOD AND APPARATUS FOR REDUCING NOISE OF DIGITAL IMAGE - There are provided a method and an apparatus for reducing noise in a digital image capable of reducing noise while preventing damage to an edge of a digital image. The apparatus includes: a high pass filtering unit determining an edge region of an input image; a low pass filtering unit performing low pass filtering on a region of the input image determined not to be the edge region by the high pass filtering unit; and a sigma filtering unit performing sigma filtering on the region of the input image determined not to be the edge region by the high pass filtering unit. | 07-05-2012 |
20120257055 | APPARATUS FOR PROCESSING ON-SCREEN DISPLAY AND SYSTEM FOR REPROGRAMMING CAMERA MODULE HAVING THE SAME - There is provided an apparatus for processing an on-screen display (OSD), the apparatus including: a buffer unit receiving first dynamic guideline image information, a color determining unit determining colors for previously divided sections included in the first dynamic guideline image information from the buffering unit, and an image synthesizing unit synthesizing second dynamic guideline image information having the colors for each of the sections, determined by the color determining unit with an image from a camera. With the apparatus for processing an OSD, a user freely sets colors of a warning message, a static guideline, and a dynamic guideline, whereby the warning message, the static guideline, and the dynamic guideline can be displayed on a screen without obscuring a rearview image. In addition, a dynamic guideline can be set as different colors according to sections divided into distances from the rear of a vehicle and an image can be continuously displayed. Further, the camera module can be reprogrammed. | 10-11-2012 |
20130076901 | ON-SCREEN DISPLAY APPARATUS - There is provided an on-screen display (OSD) apparatus including: a plurality of ultrasonic sensors having respective ranges previously assigned thereto to thereby detect an object therein; a camera module capturing an image of the ranges detected by the plurality of ultrasonic sensors; and a controlling unit controlling a display of positional information of the object detected in the ranges assigned to the plurality of individual ultrasonic sensors in the image captured by the camera module. | 03-28-2013 |
20140327693 | APPARATUS FOR PROCESSING ON-SCREEN DISPLAY AND SYSTEM FOR REPROGRAMMING CAMERA MODULE HAVING THE SAME - There is provided an apparatus for processing an on-screen display (OSD), the apparatus including: a buffer unit receiving first dynamic guideline image information, a color determining unit determining colors for previously divided sections included in the first dynamic guideline image information from the buffering unit, and an image synthesizing unit synthesizing second dynamic guideline image information having the colors for each of the sections, determined by the color determining unit with an image from a camera. With the apparatus for processing an OSD, a user freely sets colors of a warning message, a static guideline, and a dynamic guideline, whereby the warning message, the static guideline, and the dynamic guideline can be displayed on a screen without obscuring a rearview image. In addition, a dynamic guideline can be set as different colors according to sections divided into distances from the rear of a vehicle and an image can be continuously displayed. Further, the camera module can be reprogrammed. | 11-06-2014 |