摘要:
A digital image photographing method includes: recognizing a subject by analyzing an image photographed by a digital image photographing apparatus; separating the recognized subject from a background in the image; and displaying a recommending lead line of a rule of thirds on a display of the digital image photographing apparatus to help position the recognized subject on an intersection point of transversal and vertical trisectional lines. Further, the digital image photographing method includes recommending a composition, a pose and a motion which are matched to the recognized subject and the background with reference to pre-recorded information about the composition, the pose and the motion.
摘要:
A series of retroreflective materials of graduated reflectivity each comprising a plurality of transparent elements wherein each of the retroreflective materials has a different proportion of the plurality of transparent elements which are covered with a reflective coating. The materials can be used to dress a set design suitable for filming using chromakeying techniques. A plurality of different objects on the set are covered in different ones of the series of retroreflective materials according, for example, to the position and orientation of the object on the set.
摘要:
In a method and system for matting a foreground object F having an opacity α constrained by associating a characteristic with selected pixels in an image having a background B, weights are determined for all edges of neighboring pixels for the image and used to build a Laplacian matrix L. The equation α is solved where α=arg min αT Lα s.t.αi=si, ∀iεS, S is the group of selected pixels, and si is the value indicated by the associated characteristic. The equation Ii=αiFi+(1−αi)Bi is solved for F and B with additional smoothness assumptions on F and B; after which the foreground object F may be composited on a selected background B′ that may be the original background B or may be a different background, thus allowing foreground features to be extracted from the original image and copied to a different background.
摘要:
A method for detecting a face in a mid-shot digital image of a person comprises capturing first and second mid-shot digital images of nominally the same scene using different capture settings such that the foreground is differently differentiated from the background in each image, and comparing the first and second images to determine the foreground region of the images. A portion of the foreground region likely to correspond to a face is estimated based upon the geometry of the foreground region.
摘要:
Techniques are disclosed to provide more efficient and improved border matting for extracted foreground images, e.g., without requiring excessive user interaction. Border matting techniques described herein generate relatively continuous transparency (or alpha values) along the boundary of the extracted object (e.g., limiting color bleeding and/or artifacts).
摘要:
A method for video insertion including presenting a user with an image; allowing the user to define one or more inclusion regions of interest by selecting one or more portions in the image; allowing the user to define one or more exclusion regions of interest by selecting one or more portions in the image; expanding inclusion color values in a color space to define an inclusion color region, the inclusion color values corresponding to colors in the inclusion region of interest; expanding exclusion color values in a color space to define an exclusion color region, the exclusion color values corresponding to colors in the exclusion region of interest; assigning each color in the color space a key value in response to the inclusion color region and the exclusion color region; receiving background video and foreground; merging the background video and the foreground in response to the key value corresponding to the background video color.
摘要:
An asynchronous camera/projector system includes a projection screen, having a key color, a projector, oriented to provide a sequenced background image to the screen, and a camera, located in front of the screen, and oriented to capture a sequenced image of the screen and a real object positioned in front of the screen. The camera and projector operate out of phase, so that the camera does not record the background image.
摘要:
A video receiver for SCART input includes an input configured to receive a composite video signal, RGB signals, and a switch-indicating signal, a first digitizer module coupled to the input and including a one-bit slicer configured to receive and convert the switch-indicating signal to a one-bit digital signal, the first digitizer further including a downconverter configured to convert the one-bit signal to a multi-bit digital signal with non-abrupt transitions between a logical zero and a logical one, and a combiner module configured to receive and combine indicia of the composite video signal and the RGB signals to produce a total video output signal as a function of the indicia of the multi-bit digital signal.
摘要:
A video object clipping method includes storing, in a storage unit, original images each including a video object to be clipped and reference alpha images representing objects prepared, determining a criteria original image and a criteria reference alpha image from the original images and the reference alpha images, determining a deformation parameter by deforming the criteria reference alpha image to correspond to the criteria original image, and deforming remaining ones of the reference alpha images according to the determined deformation parameter to generate output alpha images corresponding to the original images.
摘要:
Methods and apparatuses for blending two images using vector table look up operations. In one aspect of the invention, a method to blend two images includes: loading a vector of keys into a vector register; converting the vector of keys into a first vector of blending factors for the first image and a second vector of blending factors for the second image using a plurality of look up tables; and computing an image attribute for the blended image using the blending factors.