Method of Filming High Dynamic Range Videos
First Claim
1. A method of filming a high dynamic range video, applied for an electronic product having an image sensor, and the method comprising the following steps:
- using the image sensor to capture an original image which is interlaced by a plurality of long exposure areas and a plurality of short exposure areas, and the original image comprising a plurality of pixels;
forming the plurality of long exposure areas as a long exposure field, and forming the plurality of short exposure areas as a short exposure field;
forming a reconstructed long exposure field and a reconstructed short exposure field having the same resolution as the original image based on a pixel value of each pixel of the long exposure field and the short exposure field via a reconstruction process; and
applying the pixel value of each pixel of the reconstructed long exposure field and the reconstructed short exposure field to form a high dynamic range image via a merging process;
wherein the pixel value is an integer within 0 to 2x−
1 and x is a number of digits of the image sensor, different pixel values correspond to different levels of illuminance, and a ratio of a long exposure duration of the plurality of long exposure area to a short exposure duration of the plurality of short exposure area is a exposure duration ratio (R).
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Abstract
The present invention discloses a method of filming a high dynamic range video. The method includes: using an image sensor to capture an original frame which is interlaced by a plurality of long exposure areas and a plurality of short exposure areas; forming a long exposure field via a plurality of long exposure areas and forming a short exposure field via a plurality of short exposure areas; forming a reconstructed long exposure field and a reconstructed short exposure field having the same resolution as the original frame via a reconstruction process by a pixel value of each pixel in the long exposure field and the short exposure field; and forming a high dynamic range image based on the pixel value of each pixel of the reconstructed long exposure field and the reconstructed short exposure field via a merging process.
7 Citations
10 Claims
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1. A method of filming a high dynamic range video, applied for an electronic product having an image sensor, and the method comprising the following steps:
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using the image sensor to capture an original image which is interlaced by a plurality of long exposure areas and a plurality of short exposure areas, and the original image comprising a plurality of pixels; forming the plurality of long exposure areas as a long exposure field, and forming the plurality of short exposure areas as a short exposure field; forming a reconstructed long exposure field and a reconstructed short exposure field having the same resolution as the original image based on a pixel value of each pixel of the long exposure field and the short exposure field via a reconstruction process; and applying the pixel value of each pixel of the reconstructed long exposure field and the reconstructed short exposure field to form a high dynamic range image via a merging process; wherein the pixel value is an integer within 0 to 2x−
1 and x is a number of digits of the image sensor, different pixel values correspond to different levels of illuminance, and a ratio of a long exposure duration of the plurality of long exposure area to a short exposure duration of the plurality of short exposure area is a exposure duration ratio (R). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification