Color filter imaging array and method of formation
AssigneeAptina Imaging Corporation
InventorKartik Venkataraman
Life of this patent
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Abstract
A color filter array pattern for use in a solid-state imager comprising red sensitive elements located at every other array position, with alternating blue sensitive and green sensitive elements located at the remaining array positions, is disclosed. Since red color is sampled most frequently, the color filter may be part of an in vivo camera system for imaging internal human body organs and tissues.
Claims9
A method of obtaining an image from a tissue of a body organ, said method comprising the steps of:
- positioning an in vivo detecting system in the proximity of said tissue of said body organ, said detecting system being a swallowable capsule, said detecting system comprising an array of pixel sensor cells providing output data representing an image of said tissue of said body organ, said array comprising a color filter layer formed of a plurality of red sensitive elements, blue sensitive elements and green sensitive elements, wherein said plurality of red, blue and green sensitive elements are arranged in a color filter pattern so that said red sensitive elements occur at every other element position of said color filter pattern, and wherein said blue sensitive elements and said green sensitive elements alternate with said red sensitive elements in alternate rows, respectively, of said color filter pattern;
- sampling the red color of said tissue of said body organ at a first frequency;
- and
- sampling the green color of said tissue of said body organ at a second frequency, wherein said first frequency is twice said second frequency.
A method of outputting an image of at least a portion of the human gastrointestinal tract, said method comprising the steps of:
- providing an imaging system in the proximity of said at least a portion of the human gastrointestinal tract;
- detecting the red color of said at least a portion of the human gastrointestinal tract at a first frequency to obtain a first measured data;
- detecting the green color of said at least a portion of the human gastrointestinal tract at a second frequency to obtain a second measured data, wherein said first frequency is twice said second frequency;
- detecting the blue color of said at least a portion of the human gastrointestinal tract at said second frequency to obtain a third measured data;
- and
- transmitting said first, second and third measured data to a receiver system.
Dependencies are inferred from the claim text.