公开(公告)号：US20250045692A1

公开(公告)日：2025-02-06

申请号：US18808723

申请日：2024-08-19

Applicant: CARNEGIE MELLON UNIVERSITY

Inventor： Marios Savvides ,  Sreena Nallamothu ,  Magesh Kannan ,  Uzair Ahmed ,  Ran Tao ,  Yutong Zheng

IPC: G06Q10/087 ,  G06F16/583 ,  G06F18/2113 ,  G06F18/214 ,  G06F18/28 ,  G06V10/40 ,  G06V10/75 ,  G06V20/52 ,  H04N7/18

Abstract: Disclosed herein is a system and method of identifying misplaced products on a retail shelf using a feature extractor trained to extract features from images of products on the shelf and output identifying information regarding the product in the product image. The extracted features are compared to extracted features in a product library and a best fit is obtained. A misplaced product is identified if the identifying information produced by the feature extractor fails to match the identifying information associated with the best fit features from the product library.

公开(公告)号：US12215202B2

公开(公告)日：2025-02-04

申请号：US18196884

申请日：2023-05-12

Applicant: Carnegie Mellon University

Inventor： Andrew Hudson ,  Thomas Hinton ,  Adam Feinberg ,  Andrew Lee

IPC: C08F2/46 ,  B33Y70/00 ,  C08F2/50 ,  C08G61/04 ,  C08J3/075 ,  C09D11/04 ,  B29C64/40

Abstract: This document describes a process of producing gel microparticles, which are consistent in size and morphology. Through the process of coacervation, large volumes of gel microparticle slurry can be produced by scaling up reactor vessel size. Particles can be repeatedly dehydrated and rehydrated in accordance to their environment, allowing for the storage of particles in a non-solvent such as ethanol. Gel slurries exhibit a Bingham plastic behavior in which the slurry behaves as a solid at shear stresses that are below a critical value. Upon reaching the critical shear stress, the slurry undergoes a rapid decrease in viscosity and behaves as a liquid. The rheological behavior of these slurries can be adjusted by changing the compaction processes such as centrifugation force to alter the yield-stress. The narrower distribution and reduced size of these particles allows for an increase in FRESH printing fidelity.

公开(公告)号：US20250025714A1

公开(公告)日：2025-01-23

申请号：US18894976

申请日：2024-09-24

Applicant: Carnegie Mellon University

Inventor： Alireza Chaman Zar ,  Pulkit Grover ,  Shawn K. Kelly ,  Maysam Chamanzar ,  Shilpa George ,  Anjali Menon

IPC: A61N1/40 ,  A61N1/36 ,  A61N7/00

Abstract: Methods providing reliable and non-invasive ways to suppress spreading depolarization waves leading to cortical spreading depression are disclosed. A stimulation signal is applied at the location of and surrounding the location of the spreading depolarization and the amplitude and focal point of the stimulation signal are randomly varied, causing suppression of the spreading depolarization wave.

公开(公告)号：US12205349B2

公开(公告)日：2025-01-21

申请号：US17698556

申请日：2022-03-18

Applicant: Robert Bosch GmbH ,  Carnegie Mellon University

Inventor： Fatemeh Sheikholeslami ,  Wan-Yi Lin ,  Jan Hendrik Metzen ,  Huan Zhang ,  Jeremy Kolter

IPC: G06V10/764 ,  G06T5/70 ,  G06V10/84

Abstract: A system includes a machine-learning network. The network includes an input interface configured to receive input data from a sensor. The processor is programmed to receive the input data, generate a perturbed input data set utilize the input data, wherein the perturbed input data set includes perturbations of the input data, denoise the perturbed input data set utilizing a denoiser, wherein the denoiser is configured to generate a denoised data set, send the denoised data set to both a pre-trained classifier and a rejector, wherein the pre-trained classifier is configured to classify the denoised data set and the rejector is configured to reject a classification of the denoised data set, train, utilizing the denoised input data set, the a rejector to achieve a trained rejector, and in response to obtaining the trained rejector, output an abstain classification associated with the input data, wherein the abstain classification is ignored for classification.

公开(公告)号：US12190565B2

公开(公告)日：2025-01-07

申请号：US18267540

申请日：2022-02-03

Applicant: CARNEGIE MELLON UNIVERSITY

Inventor： Ran Tao ,  Marios Savvides

IPC: G06K9/00 ,  G06V10/764 ,  G06V10/77 ,  G06V10/771

Abstract: Disclosed herein is a methodology for refining novel-class features in a few-shot learning scenario by fine-tuning the feature extractor by reducing both class-agnostic biases and class-specific biases. A distribution calibration module is used to reduce the class-agnostic bias by normalizing the overall feature distribution for novel classes and further reshaping the feature manifold for fast adaptation during fine-tuning. Selected sampling is used to reduce class-specific bias by augmenting more data for better estimation.

公开(公告)号：US12188134B2

公开(公告)日：2025-01-07

申请号：US17760944

申请日：2020-09-16

Applicant: CARNEGIE MELLON UNIVERSITY ,  Massachusetts Institute of Technology

Inventor： Venkatasubramanian Viswanathan ,  Dilip Krishnamurthy ,  Karthish Manthiram ,  Zachary Schiffer

IPC: C25B9/63 ,  C25B1/01 ,  C25B1/02 ,  C25B1/04 ,  C25B1/50 ,  C25B9/19 ,  C25B11/04 ,  C25B15/08

Abstract: In some aspects, the present disclosure pertains to methods for the electrochemical production of hydrogen in an electrochemical cell comprising an anode, a cathode and a liquid electrolyte comprising an ionic hydrogen carrier, wherein the electrochemical cell is operated under conditions such that hydrogen gas is produced from the ionic hydrogen carrier at the cathode and wherein nitrogen gas is produced from the ionic hydrogen carrier at the anode. Other aspects pertain to devices and systems for carrying out such methods.

公开(公告)号：US20250005881A1

公开(公告)日：2025-01-02

申请号：US18709685

申请日：2022-12-08

Applicant: CARNEGIE MELLON UNIVERSITY

Inventor： Marios SAVVIDES ,  Uzair AHMED ,  Fangyi CHEN ,  Han ZHANG

IPC: G06V10/25 ,  G06V10/72 ,  G06V10/764 ,  G06V10/766 ,  G06V10/77 ,  G06V10/82 ,  G06V20/60

Abstract: Disclosed herein is a system and method for generating complex, concave polygonal bonding boxes which tightly cover the most representative faces of retail products having arbitrary poses. The polygonal bounding boxes do not include unnecessary background information or miss parts of the objects, as would the axis-aligned or rotated bounding boxes produced by prior art detectors. A simple projection transformation can correct the pose of products for downstream tasks.

公开(公告)号：US20240400394A1

公开(公告)日：2024-12-05

申请号：US18700522

申请日：2022-10-13

Applicant: Carnegie Mellon University

Inventor： Itzhaq Cohen-Karni ,  Raghav Garg ,  Daniel J. San Roman ,  Inkyu Lee ,  Yingqiao Wang ,  Samuel Gershanok ,  Mabel Bartlett ,  Xudong Ji ,  Jonathan Rivnay

IPC: C01B32/186 ,  C01B32/194

Abstract: A hybrid graphene material includes a functional group to expand the use of graphene in various applications. The hybrid material may include a substrate, such as silicon nanowires, where the graphene is fabricated on the surface of the substrate with an out-of-plane topography. Functional groups can be added to the graphene and affect the electrical, chemical, or photo characteristics of the hybrid material.

公开(公告)号：US20240367382A1

公开(公告)日：2024-11-07

申请号：US18659047

申请日：2024-05-09

Applicant: Carnegie Mellon University

Inventor： Adam Feinberg ,  Andrew Hudson

IPC: B29C64/386 ,  A61B5/00 ,  A61B5/055 ,  A61B6/03 ,  A61B8/08 ,  A61F2/04 ,  A61F2/24 ,  A61F2/30 ,  A61L27/20 ,  A61L27/22 ,  A61L27/24 ,  A61L27/36 ,  A61L27/52 ,  A61L27/54 ,  B29C64/40 ,  B29K105/00 ,  B29L31/00 ,  B33Y10/00 ,  B33Y50/00 ,  B33Y70/00 ,  B33Y80/00

Abstract: Various systems and process for fabricating customized medical devices via the freeform reversible embedding of suspended hydrogels process are disclosed. The mechanical properties of the fabricated objects can be controlled according to the manner or orientation in which the structure material is deposited into the support material and the three-dimensional movement of the extruder assembly. Further, the dimensions of the fabricated objects can be validated by adding a contrast agent to the structure material, obtaining a three-dimensional reconstruction of the fabricated object, and then comparing the three-dimensional reconstruction to the computer model upon which the fabricated object is based. These and other techniques are described herein.

公开(公告)号：US20240367369A1

公开(公告)日：2024-11-07

申请号：US18686058

申请日：2022-08-25

Applicant: Carnegie Mellon University

Inventor： Akash Garg ,  O. Burak Ozdoganlar ,  Philip R. LeDuc ,  Saigopalakrishna Saileelaprasad Yerneni

IPC: B29C64/112 ,  B29C64/209 ,  B29C64/268 ,  B29L31/00 ,  B33Y10/00 ,  B33Y80/00

Abstract: A method of forming a three-dimensional structure using droplet-based freeform printing is provided. The method includes depositing a structural material through one or more nozzles onto a surface of a substrate by droplet-based freeform printing, such as inkjet printing, to form one or more three-dimensional structures including a smooth surface and one or more cross-sectional dimensions. The structural material undergoes a liquid-to-solid transition after deposition of the structural material, and the one or more cross-sectional dimensions are controlled by a droplet ejection frequency. A method of fabricating a matrix including a three-dimensional structure including forming a negative three-dimensional template using droplet-based freeform printing, depositing, such as casting, a matrix material over the negative three-dimensional template and at least a portion of the surface of the substrate and solidifying the matrix material to form a matrix including the one or more three-dimensional structures of the negative template is also provided.