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In video coding, traditional motion estimation methods work well for videos with camera translational motion, but their efficiency drops for other motions, such as rotational and dolly motions. In this paper, a motion-information-based three-dimensional (3D) video coding method is proposed for texture plus depth 3D video. The synchronized global motion information of the camera is obtained to assist...
We propose a system for guiding a visually impaired person toward a target product on a store shelf using visual-auditory feedback. The system uses a hand-held, monopod-mounted CCD camera as its sensor and recognizes a target product in the images using sparse feature vector matching. Processing is divided into two phases: In Phase1, the system acquires an image, recognizes the target product, and...
This paper proposes an unsupervised technique for detecting planar surfaces on single depth map image. The proposed method can detect planar surfaces by adopting dynamic seed growing technique without using texture information. So aided with this mechanism to control the growing process, each seed patch can grow to its maximum extent and then the next seed patch begins to grow. This process avoids...
A photo sequence captured with different focal settings is called a focal stack image. By merging the focal stack image we can obtain an all-in-focus image. A merging strategy is introduced in the image fusion process with spatial image transform. A fusion selective function is formed using Laplacian transform and image gradient based on the focal stack photography. Two other methods in spatial domain...
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