Abstract: Systems (490), methods (340), and machine-readable and executable instructions (428) are provided for depth mask assisted video stabilization. Depth mask assisted video stabilization can include creating a first depth mask from a first frame (101, 201) and a second depth mask from a second frame (102, 202) to obtain depth information (342) and defining a first list of feature points (111-1a, 111-2a, 111-3a, 111-4a, 113-1a, 113-2a, 113-3a, 113-4a, 113-5a) from the first frame (101, 201) and a second list of feature points (111-1b, 111-2b, 111-3b, 111-4b, 113-1b, 113-2b, 113-3b, 113-4b, 113-5b) from the second frame (102, 202) (344).

Abstract: Systems (490), methods (340), and machine-readable and executable instructions (428) are provided for depth mask assisted video stabilization. Depth mask assisted video stabilization can include creating a first depth mask from a first frame (101, 201) and a second depth mask from a second frame (102, 202) to obtain depth information (342) and defining a first list of feature points (111-1a, 111-2a, 111-3a, 111-4a, 113-1a, 113-2a, 113-3a, 113-4a, 113-5a) from the first frame (101, 201) and a second list of feature points (111-1b, 111-2b, 111-3b, 111-4b, 113-1b, 113-2b, 113-3b, 113-4b, 113-5b) from the second frame (102, 202) (344).

Abstract: Systems, methods, and machine-readable and executable instructions are provided for filtering image data. Filtering image data can include determining a desired depth of field of an image, determining a distance between a pixel of the image and the desired depth of field. Filtering image data can also include adjusting a contrast of the pixel in proportion to a magnitude of a weight of the pixel, wherein the weight is based on the distance.

Abstract: Image stabilization systems and methods are disclosed. One embodiment of the image stabilization method, among others, includes detecting motion of a camera, and responsive to the detected motion, changing an optical filter orientation to displace an image provided on a sensor.

Abstract: Image-exposure systems and methods are disclosed. One embodiment of the system includes a motion detecting device, and logic configured to determine when to terminate an image-exposure based on detected motion of a camera.

Abstract: A digital camera takes interleaved photographs of two different kinds. In one example embodiment, the first kind of photograph is taken using a first set of pixels of the camera's electronic array light sensor and has a short exposure time. The second kind of photograph is taken using a second set of pixels and has a long exposure time. More than one of the short-exposure-time photographs is taken while each long-exposure-time photograph is exposed. The two kinds of photographs are used for different purposes. For example, one kind may be used for performing automatic focusing while the other kind is used for displaying in a live view display. In this way, live view may continue while automatic focusing is performed. In another embodiment, one kind of photograph is used for providing a live view display, and the other is used in selecting exposure settings for a final photograph.

Abstract: A digital imaging device automatically detects that a subject is too close to the device for acceptable focus to be achieved and informs the user, takes automatic corrective action, or both.

Abstract: When using a strobe in capturing a digital image is determined to be imminent, a pre-capture image may be saved from which iris-color information can be derived. The iris-color information derived from the pre-capture image may be used to improve red-eye correction of the captured digital image.

Abstract: A camera creates successive digital images of a scene, and computes a stability measure estimate blur in a final photograph of the scene. The camera combines information such as lens focal length, focus distance, scene brightness value, and shutter speed to determine alternate camera settings that may reduce the blur. The camera communicates to the photographer suggested camera setting changes that may reduce the blur. The communication may optionally happen before the final photograph is taken or after, and may take one of several forms. The camera may optionally be a digital camera. The setting change suggestions may optionally be stored in an image file with a final digital photograph.

Abstract: A camera computes an image stability measure by measuring the variability of an edge-detect figure of merit evaluated from several immediate past photographs.

Abstract: Producing calibration data (to remove vignetting, e.g., color-dependent vignetting) for a digital camera includes: arranging, in front of the camera, a white reference surface that is to be imaged; capturing, via the camera, a characteristic array of data corresponding to an image of the reference surface for each color that the camera can image; and manipulating each characteristic array to reduce a total amount of data representing the reference image.

Abstract: A digital camera maintains a consistent effective focal length upon switching from a first focus mode to a second focus mode, the focus modes having different maximum focal lengths. Maintaining a consistent effective focal length across focus mode changes obviates the need for a user to reframe a scene upon changing focus modes.

Abstract: A camera includes software to compute a measure of focus at a plurality of focal distances. The camera includes an indicator of the measure of focus as a function of focal distance. The camera may also include an indication of present focal position. The camera may also include an indication of present depth of field.

Abstract: A method and apparatus for detecting the presence of artificial illumination in a scene powered by alternating current by sampling the light in a scene at a periodic rate.

Abstract: A method and apparatus is disclosed for auto-exposure control in a scene under artificial illumination that synchronizes the exposure control algorithm and final image capture with the intensity variations in the artificial illumination.

Abstract: A method and apparatus for color correcting for the presence, in a scene, of artificial illumination that is powered by alternating current is disclosed. By sampling the light in a scene at a periodic rate the presence of artificial illumination can be detected and then color corrected.

Abstract: A system and method for estimating lens temperature is disclosed. In one embodiment, a camera comprises a body and a lens assembly. The lens assembly comprises a focus mechanism. The body comprises a heat generating element, a sensor proximally located to the heat generating element, and a processor. The sensor is configured to provide a signal responsive to temperature. The processor is configured to apply an input responsive to the signal to a heat transfer model to determine a temperature of the lens assembly. The processor further determines a focus error correction responsive to the temperature of said lens assembly.

Abstract: A camera computes an image stability measure by measuring the variability of an edge-detect figure of merit evaluated from several immediate past photographs.

Abstract: A camera creates successive digital images of a scene, and computes a stability measure estimate blur in a final photograph of the scene. The camera combines information such as lens focal length, focus distance, scene brightness value, and shutter speed to determine alternate camera settings that may reduce the blur. The camera communicates to the photographer suggested camera setting changes that may reduce the blur. The communication may optionally happen before the final photograph is taken or after, and may take one of several forms. The camera may optionally be a digital camera. The setting change suggestions may optionally be stored in an image file with a final digital photograph.

Abstract: A camera includes software to compute a measure of focus at a plurality of focal distances. The camera includes an indicator of the measure of focus as a function of focal distance. The camera may also include an indication of present focal position. The camera may also include an indication of present depth of field.