发明名称 |
Color correcting virtual long exposures with true long exposures |
摘要 |
A gain may be applied to a short-exposure image to form a virtual long-exposure image. The short-exposure image may have been captured using a short total exposure time (TET), the virtual long-exposure image may have a virtual long TET, and the virtual long TET may be greater than the short TET. A true long-exposure image may be captured using a true long TET. The true long TET may be substantially equal to the virtual long TET. Color values of at least some pixels of the true long-exposure image may be copied to corresponding pixels of the virtual long-exposure image. |
申请公布号 |
US9131201(B1) |
申请公布日期 |
2015.09.08 |
申请号 |
US201313902267 |
申请日期 |
2013.05.24 |
申请人 |
Google Inc. |
发明人 |
Geiss Ryan |
分类号 |
H04N5/238;H04N9/77;H04N5/235;H04N5/355 |
主分类号 |
H04N5/238 |
代理机构 |
McDonnell Boehnen Hulbert & Berghoff LLP |
代理人 |
McDonnell Boehnen Hulbert & Berghoff LLP |
主权项 |
1. A method comprising: applying, by a computing device, gain to a short-exposure image to form a virtual long-exposure image, wherein the short-exposure image was captured using a short total exposure time (TET), the virtual long-exposure image has a virtual long TET, and the virtual long TET is greater than the short TET; capturing a true long-exposure image using a true long TET, wherein the true long TET is substantially equal to the virtual long TET; copying color values of at least some pixels of the true long-exposure image to corresponding pixels of the virtual long-exposure image; and combining the short-exposure image and the virtual long-exposure image to form an output image, wherein more of the output image is properly-exposed than the short-exposure image, and wherein more of the output image is properly-exposed than the virtual long-exposure image. |
地址 |
Mountain View CA US |