| 1. |
- Li, Xian, et al.
(författare)
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GCDB-UNet : A novel robust cloud detection approach for remote sensing images
- 2022
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Ingår i: Knowledge-Based Systems. - : Elsevier BV. - 0950-7051 .- 1872-7409. ; 238
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Tidskriftsartikel (refereegranskat)abstract
- Cloud detection is a prerequisite in many remote sensing applications, and it has been tackled through different approaches from simple thresholding to complicated deep network training. On the other hand, existing approaches are susceptible to failures while handling thin clouds, largely because of their small sizes, sparse distributions, as well as high transparency and similarity to the non-cloud background regions. This paper presents global context dense block U-Net (GCDB-UNet), a robust cloud detection network that embeds global context dense block (GCDB) into the U-Net framework and is capable of detecting thin clouds effectively. GCDB consists of two feature extraction units for addressing the challenges in thin cloud detection, namely, a non-local self-attention unit that extracts sample correlation features by aggregating the sparsely distributed thin clouds and a squeeze excitation unit that extracts channel correlated features by differentiating their importance. In addition, a dense connection scheme is designed to exploit the multi-level fine-grained representations from the two types of extracted features and a recurrent refinement module is introduced for gradual enhancement of the predicted classification map. We also created a fully annotated cloud detection MODIS dataset that consists of 1192 training images, 80 validation images and 150 test images. Extensive experiments on Landsat8, SPARCS and MODIS datasets show that the proposed GCDB-UNet achieves superior cloud detection performance as compared with state-of-the-art methods. Our created MODIS cloud detection dataset is available at https://github.com/xiachangxue/MODIS-Dataset-for-Cloud-Detection.
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| 2. |
- Luo, Shijian, et al.
(författare)
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RoamFab : A Design Tool for Reconfiguring Parameterized Mechanisms to 3D Models With Structural Optimization
- 2023
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Ingår i: International Journal of Human-Computer Interaction. - : Informa UK Limited. - 1044-7318 .- 1532-7590. ; 39:19, s. 3702-3716
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Tidskriftsartikel (refereegranskat)abstract
- Creating personalized 3D printing objects has become increasingly popular with the advance in end-user modeling tools and fabrication techniques. However, it remains challenging for novice makers to design and fabricate functional objects with mechanical motion such as linear or rotational. To empower users to add mechanical movements to their models for particular needs, we first investigate the commonly used 3D printable mechanisms and parameterize four mechanical primitives. We then provide a computational approach to reconfigure the mechanical primitives to user-provided 3D models, with an underlying structural optimization procedure according to a specified bending force. We further showcase a set of design examples and conduct a user study to demonstrate the potential of our approach in creating personalized functional artifacts.
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| 3. |
- Wang, Yanan, et al.
(författare)
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AnimSkin : Fabricating Epidermis with Interactive, Functional and Aesthetic Color Animation
- 2017
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Ingår i: Proceedings of the 2017 Conference on Designing Interactive Systems. - New York, NY, USA : Association for Computing Machinery (ACM). - 9781450349222 ; , s. 397-401
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Konferensbidrag (refereegranskat)abstract
- Human epidermis, as the largest organ on body, has become a new design platform for wearable computing. The availability of miniature electronics makes more possibilities for on-skin designs. In this paper, we present AnimSkin, a thin-film interface, which will emit dynamic color animations directly on skin. This is done by using thermochromic material embedded with transparent electrode acting as a capacitive sensor. Moreover, an accessible and low-cost fabrication method is introduced. Individuals could also customize aesthetic graphic designs by following the detailed fabrication process to achieve personalized patterns. We propose four different dynamic types of color animation by applying certain voltage to the heating circuitry. With two examples, Email Reminder and Light Control System, we demonstrate how AnimSkin can be integrated into everyday life, and specifically, we show how AnimSkin can benefit areas such as on-skin design, thin-film interface and beauty technology.
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| 4. |
- Wang, Yanan, et al.
(författare)
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Crafting Concrete as a Material for Enhancing Meaningful Interactions
- 2017
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Ingår i: Human-Computer Interaction. User Interface Design, Development and Multimodality. - Cham : Springer. - 9783319580708 - 9783319580715 ; , s. 634-644
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Konferensbidrag (refereegranskat)abstract
- Concrete is a composite material mostly used for the buildings and road surfaces ever since early human history, and which also can be used in contemporary product design as its unique aesthetic properties. In this paper, we present a series of small-scale explorations of concrete crafted as a central material, first utilizing its hygroscopicity interacting as an ephemeral and dynamic display; and secondly eliciting tactile interaction for its unique surface textures. Through hands-on engagement to unveil concrete potential when fabricated with digital technologies, we discuss how this large-scale and ubiquitous material could bring particular and intriguing experiences in our everyday lives, most importantly how can the potential of concrete be framed and described and enhance meaningful concrete reflections within HCI community.
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