Invention Grant
US07733392B2 Method and apparatus for reducing effects of dark current and defective pixels in an imaging device 有权
用于降低成像装置中的暗电流和缺陷像素的影响的方法和装置

  • Patent Title: Method and apparatus for reducing effects of dark current and defective pixels in an imaging device
  • Patent Title (中): 用于降低成像装置中的暗电流和缺陷像素的影响的方法和装置
  • Application No.: US12078722
    Application Date: 2008-04-03
  • Publication No.: US07733392B2
    Publication Date: 2010-06-08
  • Inventor: Chandra Mouli
  • Applicant: Chandra Mouli
  • Applicant Address: US ID Boise
  • Assignee: Micron Technology, Inc.
  • Current Assignee: Micron Technology, Inc.
  • Current Assignee Address: US ID Boise
  • Agency: Dickstein Shapiro LLP
  • Main IPC: H04N9/64
  • IPC: H04N9/64
Method and apparatus for reducing effects of dark current and defective pixels in an imaging device
Abstract:
A method and apparatus for identifying and compensating for the effects of defective pixels in high resolution digital cameras having image processing apparatus. The apparatus includes a storage system for storing data corresponding to either a dark current reference image and a white reference image and at least one actual image captured by a pixel array, and at least one processor coupled to the storage system for compensating the data corresponding to the actual image based upon the stored data. The method includes capturing and storing both dark and white reference images as well as capturing and storing actual images, identifying pixels that are affected by dark current or are defective pixels, reading data corresponding to pixels of an actual image affected by dark current or that are defective from the storage system and compensating the affected pixels.
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