Image capturing device with reduced-sized sub-image collection and an image processing method thereof
AssigneeSilicon Motion, Inc.
InventorYung-Wei Chen
Life of this patent
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Abstract
An image capturing device and the image preprocessing method thereof. The image preprocessing technique receives digital image consisting of luma data and chrominance data, integrates the chrominance data of adjacent rows to generate integrated chrominance data, buffers the luma data and the integrated chrominance data in a group of line buffers, and generates pre-processed chrominance data by making adjacent rows share the same integrated chrominance data. The luma data from the line buffer group form an image with the pre-processed chrominance. The image may be displayed on a display.
Claims10
An image capturing device, comprising:
- a light sensing unit, sensing light to generate an analog image;
- a digital image generating unit, receiving the analog image to generate a digital image consisting of luma data and chrominance data;
- a first image preprocessing unit, integrating the chrominance data of adjacent rows to generate integrated chrominance data having reduced chrominance data volume;
- a plurality of line buffers, buffering the luma data and the integrated chrominance data for sub-image collection;
- and
- a second image preprocessing unit, receiving the integrated chrominance data from the line buffers and expanding the integrated chrominance data to generate pre-processed chrominance data, wherein each row of the integrated chrominance data are copied to the corresponding adjacent rows of the pre-processed chrominance data,
- wherein the luma data from the line buffers and the pre-processed chrominance data generated by the second image preprocessing unit are applied in displaying an image on a display.
An image preprocessing method within an image capturing device, comprising:
- receiving a digital image consisting of luma data and chrominance data;
- integrating the chrominance data of adjacent rows to generate integrated chrominance data having reduced chrominance data volume;
- using line buffers to buffer the luma data and the integrated chrominance data for sub-image collection;
- receiving the integrated chrominance data from the line buffers and expanding the integrated chrominance data to generate pre-processed chrominance data, wherein each row of the integrated chrominance data are copied to the corresponding adjacent rows of the pre-processed chrominance data,
- wherein the luma data from the line buffers and the pre-processed chrominance data are applied in displaying an image on a display.
Dependencies are inferred from the claim text.