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1. 发明申请

WO2018169587A2 ADAPTIVE MATERIAL DEPOSITION FOR ADDITIVE MANUFACTURING 审中-公开
公开(公告)号：WO2018169587A2
公开(公告)日：2018-09-20
申请号：PCT/US2017/066640
申请日：2017-12-15
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY
发明人： MATUSIK, Wojciech , PARK, Allen, S. , RAMOS, Javier , VIDIMCE, Kiril
IPC分类号： H04L9/06
摘要： A closed-loop adaptive material deposition apparatus and method uses a scanning system to monitor an additively manufactured object as it is being fabricated and adapting the geometric shape and material composition of the subsequent layers based on the scan data. The scanning system repeatedly captures geometric and/or material information of a partially manufactured object with optional auxiliary objects inserted during the manufacturing process. Based on this information, the actual surface geometry and/or actual material composition is computed. Surface geometry may be offset and used as a slicing surface for the next portion of the digital model. The shape of the slicing surface may then be recomputed each time the system scans the partially fabricated object.

2. 发明申请

WO2017189064A1 TOPOLOGY OPTIMIZATION WITH MICROSTRUCTURES 审中-公开
标题翻译：微观结构的拓扑优化
公开(公告)号：WO2017189064A1
公开(公告)日：2017-11-02
申请号：PCT/US2017/015462
申请日：2017-01-27
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY
发明人： MATUSIK, Wojciech , CHEN, Desai , SKOURAS, Melina , ZHU, Bo
IPC分类号： G06F19/00
摘要： System and method for optimizing a three-dimensional model representing a shape of an object to be fabricated from a plurality of materials having known physical properties. The object is designed to exhibit one or more target properties and the three-dimensional model includes a plurality of cells. The system includes at least one processor programmed to receive a data structure including information for a material property gamut of microstructures for the plurality of materials and two or more of the known physical properties of the plurality of materials, and perform a topology optimization process on the three-dimensional model to generate an optimized model, wherein the topology optimization process is constrained based, at least in part, on the information in the received data structure and the one or more target properties.
摘要翻译：用于优化表示要由具有已知物理性质的多种材料制造的物体的形状的三维模型的系统和方法。该对象被设计为展现一个或多个目标属性，并且该三维模型包括多个单元。该系统包括至少一个处理器，该处理器被编程为接收数据结构，该数据结构包括用于多种材料的微结构的材料特性色域和多种材料的两种或更多种已知物理特性的信息，并且对该数据结构执行拓扑优化处理三维模型来生成优化模型，其中拓扑优化过程至少部分地基于接收到的数据结构中的信息和一个或多个目标属性来约束。

3. 发明申请

WO2017171972A3 TECHNIQUES FOR FLUID CONTROL IN ADDITIVE FABRICATION AND RELATED SYSTEMS AND METHODS 审中-公开
公开(公告)号：WO2017171972A3
公开(公告)日：2017-10-05
申请号：PCT/US2017/013240
申请日：2017-01-12
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY
发明人： MATUSIK, Wojciech , SUNDARAM, Subramaniam
IPC分类号： B29C67/00
摘要： According to some aspects, a method is provided of forming an object via additive fabrication, the method comprising forming a first layer of the object by depositing a plurality of droplets of a first liquid and curing the first liquid to form solid material, the first layer including a region of a first solid material, and a region of a second solid material in contact with the region of the first solid material, and depositing a second liquid onto the region of the first solid material and at least part of the region of the second solid material, wherein the second liquid, once deposited, uniformly spreads over the region of the first solid material whilst exhibiting partial wetting over the at least part of the region of the second solid material.

4. 发明申请

WO2015120032A1 REDUCING VIEW TRANSITION ARTIFACTS IN AUTOMULTISCOPIC DISPLAYS 审中-公开
标题翻译：减少自动显示中的视角过渡制品
公开(公告)号：WO2015120032A1
公开(公告)日：2015-08-13
申请号：PCT/US2015/014434
申请日：2015-02-04
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY
发明人： DIDYK, Piotr, K. , DU, Song-pei , DURAND, Frederic , MATUSIK, Wojciech
IPC分类号： H04N13/04
CPC分类号： H04N13/351 , H04N13/302 , H04N13/31
摘要： Automultiscopic displays enable glasses-free 3D viewing by providing both binocular and motion parallax. Within the display field of view, different images are observed depending on the viewing direction. When moving outside the field of view, the observed images may repeat. Light fields produced by lenticular and parallax-barrier automultiscopic displays may have repetitive structure with significant discontinuities between the fields of view. This repetitive structure induces visual artifacts in the form of view discontinuities, depth reversals, and extensive disparities. To overcome this problem, a method modifies the presented light field image content and makes it more repetitive. In the method, a light field is refined using global and local shearing and then the repeating fragments are stitched. The method reduces the discontinuities in the displayed light field and leads to visual quality improvements. Benefits of the method are shown using an automultiscopic display with a parallax barrier and lenticular prints.
摘要翻译：自动显示显示器通过提供双目和运动视差来实现无眼镜3D观看。在显示视野内，根据观察方向观察不同的图像。当移动到视野外时，观察到的图像可能会重复。由透镜和视差屏障自动显微镜显示器产生的光场可能具有在视场之间具有显着不连续性的重复结构。这种重复结构以视图不连续性，深度反转和广泛的差异的形式引起视觉伪影。为了克服这个问题，一种方法修改了所呈现的光场图像内容并使其更重复。在该方法中，使用全局和局部剪切来改进光场，然后缝合重复的片段。该方法减少显示的光场中的不连续性，并导致视觉质量的改善。使用具有视差屏障和透镜状印刷的自动显微镜显示该方法的优点。

5. 发明申请

WO2018226725A8 3DTV AT HOME: EULERIAN-LAGRANGIAN STEREO-TO-MULTI-VIEW CONVERSION 审中-公开
公开(公告)号：WO2018226725A8
公开(公告)日：2018-12-13
申请号：PCT/US2018/036105
申请日：2018-06-05
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY
发明人： MATUSIK, Wojciech , DIDYK, Piotr , FREEMAN, William , KELLNHOFER, Petr , SITTHI-AMORN, Pitchaya , DURAND, Frederic , WANG, Szu-Po
IPC分类号： H04N13/04
摘要： A method and system of converting stereo video content to multi-view video content combines an Eulerian approach with a Lagrangian approach. The method comprises generating a disparity map for each of the left and right views of a received stereoscopic frame. For each corresponding pair of left and right scanlines of the received stereoscopic frame, the method further comprises decomposing the left and right scanlines into a left sum of wavelets or other basis functions, and a right sum wavelets or other basis functions. The method further comprises establishing an initial disparity correspondence between left wavelets and right wavelets based on the generated disparity maps, and refining the initial disparity between the left wavelet and the right wavelet using a phase difference between the corresponding wavelets. The method further comprises reconstructing at least one novel view based on the left and right wavelets.

6. 发明申请

WO2018169587A3 ADAPTIVE MATERIAL DEPOSITION FOR ADDITIVE MANUFACTURING 审中-公开
公开(公告)号：WO2018169587A3
公开(公告)日：2018-09-20
申请号：PCT/US2017/066640
申请日：2017-12-15
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY
发明人： MATUSIK, Wojciech , PARK, Allen, S. , RAMOS, Javier , VIDIMCE, Kiril
IPC分类号： B29C64/393 , B33Y50/02 , G05B19/4099
摘要： A closed-loop adaptive material deposition apparatus and method uses a scanning system to monitor an additively manufactured object as it is being fabricated and adapting the geometric shape and material composition of the subsequent layers based on the scan data. The scanning system repeatedly captures geometric and/or material information of a partially manufactured object with optional auxiliary objects inserted during the manufacturing process. Based on this information, the actual surface geometry and/or actual material composition is computed. Surface geometry may be offset and used as a slicing surface for the next portion of the digital model. The shape of the slicing surface may then be recomputed each time the system scans the partially fabricated object.

7. 发明申请

WO2018226725A1 3DTV AT HOME: EULERIAN-LAGRANGIAN STEREO-TO-MULTI-VIEW CONVERSION 审中-公开
公开(公告)号：WO2018226725A1
公开(公告)日：2018-12-13
申请号：PCT/US2018/036105
申请日：2018-06-05
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY
发明人： MATUSIK, Wojciech , DIDYK, Piotr , FREEMAN, William , KELLNHOFER, Peter , SITTHI-AMORN, Pitchaya , DURAND, Frederic , WANG, Szu-po
IPC分类号： H04N13/04
摘要： A method and system of converting stereo video content to multi-view video content combines an Eulerian approach with a Lagrangian approach. The method comprises generating a disparity map for each of the left and right views of a received stereoscopic frame. For each corresponding pair of left and right scanlines of the received stereoscopic frame, the method further comprises decomposing the left and right scanlines into a left sum of wavelets or other basis functions, and a right sum wavelets or other basis functions. The method further comprises establishing an initial disparity correspondence between left wavelets and right wavelets based on the generated disparity maps, and refining the initial disparity between the left wavelet and the right wavelet using a phase difference between the corresponding wavelets. The method further comprises reconstructing at least one novel view based on the left and right wavelets.

8. 发明申请

WO2018169587A9 ADAPTIVE MATERIAL DEPOSITION FOR ADDITIVE MANUFACTURING 审中-公开
公开(公告)号：WO2018169587A9
公开(公告)日：2018-09-20
申请号：PCT/US2017/066640
申请日：2017-12-15
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY
发明人： MATUSIK, Wojciech , PARK, Allen, S. , RAMOS, Javier , VIDIMCE, Kiril
IPC分类号： B29C64/393 , B33Y50/02 , G05B19/4099
摘要： A closed-loop adaptive material deposition apparatus and method uses a scanning system to monitor an additively manufactured object as it is being fabricated and adapting the geometric shape and material composition of the subsequent layers based on the scan data. The scanning system repeatedly captures geometric and/or material information of a partially manufactured object with optional auxiliary objects inserted during the manufacturing process. Based on this information, the actual surface geometry and/or actual material composition is computed. Surface geometry may be offset and used as a slicing surface for the next portion of the digital model. The shape of the slicing surface may then be recomputed each time the system scans the partially fabricated object.

9. 发明申请

WO2016022336A2 SYSTEMS AND METHODS OF MACHINE VISION ASSISTED ADDITIVE FABRICATION 审中-公开
标题翻译：机器辅助辅助制造系统和方法
公开(公告)号：WO2016022336A2
公开(公告)日：2016-02-11
申请号：PCT/US2015/042454
申请日：2015-07-28
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY
发明人： RAMOS, Javier, E. , SITTHI-AMORN, Pitchaya , MATUSIK, Wojciech , WANG, Yuwang
IPC分类号： B29C67/00
CPC分类号： B29C64/386 , B29C64/106 , B29C64/112 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/02
摘要： The present application relates generally to systems and methods for using machine vision to provide information on one or more aspects of an additive fabrication device, such as calibration parameters and/or an object formed by the device or in the process of being formed by the device. According to some aspects, a method is provided for calibrating an additive fabrication device. According to some aspects, a method is provided for assessing at least a portion of an object formed using an additive fabrication device. According to some aspects, a method is provided for fabricating a second object in contact with a first object using an additive fabrication device. According to some aspects, an additive fabrication device configured to perform one or more of the above methods may be provided.
摘要翻译：本申请总体上涉及用于使用机器视觉来提供关于添加制造装置的一个或多个方面的信息的系统和方法，例如校准参数和/或由该装置形成的物体或在该装置形成的过程中。根据一些方面，提供了一种用于校准添加剂制造装置的方法。根据一些方面，提供了一种用于评估使用添加剂制造装置形成的物体的至少一部分的方法。根据一些方面，提供了一种用于使用添加剂制造装置来制造与第一物体接触的第二物体的方法。根据一些方面，可以提供被配置为执行上述方法中的一个或多个的添加剂制造装置。

10. 发明申请

WO2014172687A2 METHODS AND APPARATI FOR IMPLEMENTING PROGRAMMABLE PIPELINE FOR THREE-DIMENSIONAL PRINTING INCLUDING MULTI-MATERIAL APPLICATIONS 审中-公开
标题翻译：用于实施包括多种应用在内的三维打印可编程管道的方法和设备
公开(公告)号：WO2014172687A2
公开(公告)日：2014-10-23
申请号：PCT/US2014/034727
申请日：2014-04-18
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY, INC.
发明人： VIDIMČE, Kiril , MATUSIK, Wojciech
IPC分类号： B29C67/00 , G06F17/50
CPC分类号： B29C67/0088 , B29C64/386 , B33Y50/00 , G06F17/50 , G06T11/40 , G06T17/00 , G06T17/20
摘要： A programmable pipeline for synthesis of multi-material 3D printed objects supports procedural evaluation of geometric detail and material composition, using program modules allowing models to be specified easily and efficiently. A streaming architecture enables only a small fraction of the final volume to be stored in memory. Output is fed to the printer with little startup delay. A variety of multi-material objects are described. Procedural control over surface and volume stages as well as dithering is provided, together or independent of each other.
摘要翻译：用于合成多材料3D打印对象的可编程管道支持几何细节和材料组成的程序评估，使用程序模块，允许轻松高效地指定模型。流式架构只能将最终卷的一小部分存储在内存中。输出以很少的启动延迟被馈送到打印机。描述了各种多材料物体。提供表面和体积级以及抖动的程序控制，彼此或彼此独立。

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