摘要:
An entertainment device generates a composite image with a combiner that combines camera-captured images with a computer-generated image of an object resting on a virtual surface. The device also includes a detector that detects image movement in the captured images in one or more contact point regions corresponding to image positions at which the object contacts the virtual surface. The device further comprises an initiator for initiating movement of the object to a new position with respect to the virtual surface in response to detected motion in the contact point regions. The detector detects whether a first image area corresponding to a captured image feature is greater than a predetermined proportion of a second image area corresponding to a full field of view of the camera. If the first image area is greater than the predetermined proportion, the initiator initiates movement of the object to an avoidance position.
摘要:
In a motion estimation for a group of at least one image element in a frame of a video sequence, a global motion is determined between the frame and a reference frame. Uncovered groups present in an uncovered region of the frame are identified based on the determined global motion. The global motion is assigned as motion representation for these identified uncovered groups. The assigned motion representation is useful for constructing new frames in the sequence in a frame rate up-conversion.
摘要:
A moving image sequence is automatically reframed for a small display. The framing is adjusted in dependence upon foreground and background segment weights derived for pixels in images in the sequence. Reframed images are formed from only those input pixels which fall within a reframing window within the input image area and the position or size of the reframing window is adjusted so as to maximise a weighted total of the sum of the foreground weights of pixels within the window and the sum of the background weights of pixels outside the window.
摘要:
Support information effective in diagnosing chronic obstructive pulmonary disease is provided from a chest volume image. A storage device (112) of a medical image processing apparatus stores the data of a plurality of images in different respiratory phases which represent the morphology of an object chest portion. A vector calculation processing unit (121) calculates the motion amount of a region between the plurality of images for each pixel or area. A level decision unit (123) decides a level concerning the severity of chronic obstructive pulmonary disease for each pixel or area based on a combination of at least two of a motion amount, a feature value obtained from pixel values of image, and the change rate of the size of the area.
摘要:
A moving object detection method with which a region of a moving object is accurately extracted without being affected by a change in shape or size or occlusion of the moving object and in which a distance indicating a similarity between trajectories of an image in each of the blocks included in video is calculated (S203) and a group of similar trajectories is identified as one region based on the distance (5209). Step 5209 includes, for each of the thresholds, (1) non-linearization of the distance, (2) calculating a geodetic distance between plural trajectories from the distance after non-linearization (S204), (3) specifying, as region candidates, a group of trajectories which are distant from each other by the geodetic distance of a finite value, from among the trajectories (S205), calculating an interregional geodetic distance that is a scale indicating the similarity between the region candidates (S206), and selecting, from the region candidates, a region candidate having the interregional geodetic distance that satisfies a predetermined condition, as a result of segmentation (S207).
摘要:
A moving image sequence is automatically reframed for a small display. The framing is adjusted in dependence upon foreground and background segment weights derived for pixels in images in the sequence. Reframed images are formed from only those input pixels which fall within a reframing window within the input image area and the position or size of the reframing window is adjusted so as to maximise a weighted total of the sum of the foreground weights of pixels within the window and the sum of the background weights of pixels outside the window.
摘要:
The disclosure is related to a method and a system for removing background of a video. One of the objectives of the method and system is to extract a motion image object from a video. In the method, a plurality of frames is first retrieved from the video. An image processing approach is performed to recognize image features of every frame. A plurality of color blocks for every frame are obtained through the image processing scheme. A variance among the pixels in every color block of two continuous frames can be obtained by a comparison computation, so as to form a color block variance. The color block variance allows the system to determine a motion target object (211') as well as its image contour. The blocks excepting the blocks of the target object (211') are set as transparent blocks. Therefore the background relative to the target object (211') can be removed.
摘要:
Generally described, aspects of the present disclosure relate to generation of an image representing a panned shot of an object by an image capture device. In one embodiment, a panned shot may be performed on a series of images of a scene. The series of images may include at least subject object moving within the scene. Motion data of the subject object may be captured by comparing the subject object in a second image of the series of images to the subject object in a first image of the series of images. A background image is generated by implementing a blur process using the first image and the second image based on the motion data. A final image is generated by including the image of the subject object in the background image.
摘要:
The present disclosure relates to moving object detection based on motion blur. In one embodiment, variances of a pixel in an image for a set of frequencies are determined based on a gradient of the pixel. A degree of matching between the pixel and a set of blur kernels for the set of frequencies is then obtained based on the variances of the pixel, each of the blur kernels characterizing a type of motion that causes a blur in the image. The pixel is classified as a motion-blurred or non-motion-blurred pixel based on the degree of matching.
摘要:
A method performed by an electronic device is described. The method includes determining a local motion pattern by determining a set of local motion vectors within a region of interest between a previous frame and a current frame. The method also includes determining a global motion pattern by determining a set of global motion vectors between the previous frame and the current frame. The method further includes calculating a separation metric based on the local motion pattern and the global motion pattern. The separation metric indicates a motion difference between the local motion pattern and the global motion pattern. The method additionally includes tracking an object based on the separation metric.