Information terminal

• US 7,817,850 B2
• Filed: 06/27/2003
• Issued: 10/19/2010
• Est. Priority Date: 06/28/2002
• Status: Expired due to Fees

• Current Assignee: Nokia Corporation
• Original Assignee: Nokia Corporation
• Inventors: Atsumi, Eiji, Shin, Kazunobu
• Primary Examiner(s): Mehta; Bhavesh M
• Assistant Examiner(s): Thomas; Mia M
• Application Number:
  US10/519,857
• Publication Number:
  US 20060101080A1
• Time in Patent Office: 2,671 Days
• Field of Search: 382162-167, 382/195, 382/199, 382260-266, 345/589, 348/222.1
• US Class Current: 382/167
• CPC Class Codes: H04N 2209/046 Colour interpolation to calculate the missing colour values
• CPC Class Codes: H04N 23/843 Demosaicing, e.g. interpolating colour pixel values
• CPC Class Codes: H04N 25/134 based on three different wavelength filter elements

Abstract

An information terminal that can perform image processing in consonance with the use state and the use purpose. When a retrial module is started, removal means removes part or all of the interpolation processing performed for a Bayer-type module. Thereafter, data obtained by the removal are transmitted to color interpolation means, another color interpolation process is performed for the data, and the resultant data are transmitted to image quality correction means. The image quality correction means performs another image quality correction process for the data, and transmits the obtained data to JPEG encoding means.

Claims

1. An apparatus comprising:

at least one processor; and

at least one memory including non-transitory computer readable program code, where the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to at least;

perform at least one process for input image data resulting from a first interpolation process, including removing at least part of an effect of the first interpolation process from the input image data; and

prepare output data by performing a second, different, interpolation process for the image data obtained after the at least part of the effect of the first interpolation has been removed.

2. The apparatus according to claim 1, comprising a camera module including a lens, an image sensor, and a camera digital signal processor, where the camera digital signal processor includes a color correction unit, a gamma correction unit, a color interpolation unit, and an image quality correction unit,

where the input image data is produced by the camera module,

where removing the at least part of the effect of the first interpolation process includes removing pixels that are interpolated by the color correction unit of the camera digital signal processor, and minimizing affects due to a color correction process and an image quality correction process performed by the camera digital signal processor, and

where performing the second, different, interpolation process includes performing a color interpolation process that is different than the first interpolation process and further performing an image quality correction process.

3. The apparatus according to claim 2, where the apparatus is further caused to:

identify an arrangement pattern for color filters that are laid on the image sensor,

separate color elements of pixels generated during the interpolation process by the color correction unit from color elements of pixels used to produce the color elements of pixels, and

selectively perform a process for the color elements of the pixels generated during the interpolation process by the color correction unit.

4. The apparatus of claim 1 embodied in a mobile device.

5. A method, comprising:

obtaining image data,

performing an interpolation processes for the image data thus obtained, and

outputting the image data resulting from the interpolation processes, where performing the interpolation processes include;

performing at least one process including removing, with at least one processor, at least part of an effect of a first interpolation process from the image data resulting from the first interpolation process; and

performing a second, different, interpolation process for image data obtained after the at least part of the effect of the first interpolation process has been removed.

6. The method of claim 5, wherein the at least one process includes a process performed on pixels that are interpolated by a color corrector so as to minimize affects due to a color correction process and an image quality correction process performed by a camera digital signal processor, and where the second, different, interpolation process includes a color interpolation process and an image quality correction process that is different than the first interpolation process.

7. The method of claim 6, where performing the at least one process further includes:

identifying an arrangement pattern for color filters that are laid on the image sensor,

separating color elements of pixels generated during the first interpolation processes from color elements of pixels used to produce the color elements of pixels, and

selectively processing color elements of pixels generated during the first interpolation process.