Patent application number | Description | Published |
20140168468 | Determining an Image Capture Payload Burst Structure Based on a Metering Image Capture Sweep - A first plurality of images of a scene may be captured. Each image of the first plurality of images may be captured with a different total exposure time (TET). Based at least on the first plurality of images, a TET sequence may be determined for capturing images of the scene. A second plurality of images of the scene may be captured. Images in the second plurality of images may be captured using the TET sequence. Based at least on the second plurality of images, an output image of the scene may be constructed. | 06-19-2014 |
20140168474 | Determining an Image Capture Payload Burst Structure - A first plurality of images of a scene may be captured. Each image of the first plurality of images may be captured using a different TET. Based at least on the first plurality of images, a long TET, a short TET, and a TET sequence that includes the long TET and the short TET may be determined. A second plurality of images of the scene may be captured. The images in the second plurality of images may be captured sequentially in an image sequence using a sequence of TETs corresponding to the TET sequence. Based on one or more images in the image sequence, an output image may be constructed. | 06-19-2014 |
20140168486 | Determining Exposure Times Using Split Paxels - A plurality of images of a scene may be captured. Each image of the plurality of images may be captured using a different total exposure time (TET). The images in the plurality of images may be downsampled. A pixel value histogram based on pixel values of the downsampled images may be constructed. The pixel value histogram may be compared to one or more reference pixel value histograms. A payload TET may be determined based on comparing the pixel value histogram to the one or more reference pixel value histograms. | 06-19-2014 |
20140218540 | Noise Models for Image Processing - A plurality of images of a scene may be obtained. These images may have been captured by an image sensor, and may include a first image and a second image. A particular gain may have been applied to the first image. An effective color temperature and a brightness of a first pixel in the first image may be determined, and a mapping between pixel characteristics and noise deviation of the image sensor may be selected. The pixel characteristics may include pixel brightness. The selected mapping may be used to map at least the brightness of the first pixel to a particular noise deviation. The brightness of the first pixel and the particular noise deviation may be compared to a brightness of a second pixel of the second image. The comparison may be used to determine whether to merge the first pixel and the second pixel. | 08-07-2014 |
20140285698 | Viewfinder Display Based on Metering Images - An image capture device may capture a series of images. The series of images may include a plurality of metering images interleaved with a plurality of preview images. The preview images may be captured using respective total exposure times (TETs) that are based on characteristics of at least one previously-captured metering image. A viewfinder of the image capture device may display a stream of display images. Each display image in the stream of display images may be derived from at least one of the preview images, and at least part of the capturing may occur contemporaneously with at least part of the displaying. | 09-25-2014 |
20140347521 | Simulating High Dynamic Range Imaging with Virtual Long-Exposure Images - A total exposure time (TET) may be selected. A plurality of images of a scene may be captured using respective TETs that are based on the selected TET. At least two of the images in the plurality of images may be combined to form a merged short-exposure image. A digital gain may be applied to the merged short-exposure image to form a virtual long-exposure image. The merged short-exposure image and the virtual long-exposure image may be combined to form an output image. More of the output image may be properly-exposed than either of the merged short-exposure image or the virtual long-exposure image. | 11-27-2014 |
20140347552 | Determining an Image Capture Payload Burst Structure Based on a Metering Image Capture Sweep - A first plurality of images of a scene may be captured. Each image of the first plurality of images may be captured with a different total exposure time (TET). Based at least on the first plurality of images, a TET sequence may be determined for capturing images of the scene. A second plurality of images of the scene may be captured. Images in the second plurality of images may be captured using the TET sequence. Based at least on the second plurality of images, an output image of the scene may be constructed. | 11-27-2014 |
20150109478 | Determining an Image Capture Payload Burst Structure Based on a Metering Image Capture Sweep - A first plurality of images of a scene may be captured. Each image of the first plurality of images may be captured with a different total exposure time (TET). Based at least on the first plurality of images, a TET sequence may be determined for capturing images of the scene. A second plurality of images of the scene may be captured. Images in the second plurality of images may be captured using the TET sequence. Based at least on the second plurality of images, an output image of the scene may be constructed. | 04-23-2015 |