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Kinect v2 adopts a time-of-flight (ToF) depth sensing mechanism, which causes different type of depth artifacts comparing to the original Kinect v1. The goal of this paper is to propose a depth completion method, which is designed especially for the Kinect v2 depth artifacts. Observing the specific types of depth errors in the Kinect v2 such as thin hole-lines along the object boundaries and the new type of holes in the image corners, in this paper, we exploit the position information of the color edges extracted from the Kinect v2 sensor to guide the accurate hole-filling around the object boundaries. Since our approach requires a precise registration between color and depth images, we also introduce the transformation matrix which yields point-to-point correspondence with a pixel-accuracy. Experimental results demonstrate the effectiveness of the proposed depth image completion algorithm for the Kinect v2 in terms of completion accuracy and execution time. [ABSTRACT FROM AUTHOR]

Existing commodity depth sensors have limited the field of view (FOV) of depth scanning. Our solution for extending the FOV is to use multiple depth sensors and stitch the captured depth images to a depth panorama. In our case study, we use two Kinects to address the following two questions: what is the best layout of the two Kinects to maximize the FOV and, second, how to combine the depth images together to form the depth panorama. We answer these questions by proposing a rotated top-bottom (RTB) arrangement of the two Kinects to maximize the FOV. Since the two Kinects capture the depth images from their own views, the depth values are not necessarily identical for the same object. To solve this problem, the depth adjustments are made for a frontal reference coordinate. Moreover, the perspective distortions of the two Kinects with respect to the frontal reference coordinate are corrected by perspective transformations. Experimental results show that our RTB sensor can generate panorama depth images with an almost doubled FOV. [ABSTRACT FROM AUTHOR]