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In this paper, we propose a hardware compatible queue-based image segmentation algorithm for refining initial depth maps obtained from light field cameras. In the algorithm, an array is created to record the ranges of positions and intensities of possible segments, which make following segment merging steps much more efficient. An ASIC chip based on the proposed algorithm with a plane fitting calculator...
We present four raycast-based techniques that determine the transformation between a depth camera's coordinate system and the coordinate system defined by a rectangular surface. In addition, the surface's dimensions are measured. In contrast to other approaches, these techniques limit additional hardware requirements to commonly available, low-cost artifacts and focus on simple non-laborious procedures...
One of the challenges to promoting computer science in schools is to create and retain interest in programming. We describe a pilot project for primary and secondary students in Macau to introduce .NET Gadgeteer, a rapid prototyping platform for building electronic devices. The aim of the yearlong project was to generate interest in building devices, while learning the basics of programming concepts...
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