Abstract: Embodiments described herein provide various examples of an automatic obstacle avoidance system for unmanned vehicles using embedded stereo vision techniques. In one aspect, an unmanned aerial vehicle (UAV) capable of performing autonomous obstacle detection and avoidance is disclosed. This UAV includes: a stereo vision camera set coupled to the one or more processors and the memory to capture a sequence of stereo images; and a stereo vision module configured to: receive a pair of stereo images captured by a pair of stereo vision cameras; perform a border cropping operation on the pair of stereo images to obtain a pair of cropped stereo images; perform a sub sampling operation on the pair of cropped stereo images to obtain a pair of sub sampled stereo images; and perform a dense stereo matching operation on the pair of sub sampled stereo images to generate a dense three-dimensional (3D) point map of a space corresponding to the pair of stereo images.

Abstract: Various embodiments of a vision-based privacy-preserving embedded fall-detection system are disclosed. This embedded fall-detection system can include one or more cameras for capturing video images of one or more persons. Moreover, this embedded fall-detection system can include various fall-detection modules for processing the captured video images including: a pose-estimation module, an action-recognition module, and a fall-detection module, all of which can perform the intended fall-detection functionalities within the embedded system environment in real-time in order to detect falls of the one or more persons. When a fall is detected, instead of sending the original captured images, the embedded fall-detection system can transmit sanitized video images to the server, wherein each detected person is represented by a skeleton figure in place of the actual person images, thereby preserving the privacy of the detected person.

Abstract: The invention discloses a freeze-dried powder of high molecular weight silk fibroin, preparation process and use thereof. The freeze-dried powder is obtained from silk by degumming, dissolution, dialysis, centrifugation, high temperature and high pressure treatment and freeze-drying. A method of preparing silk fibroin microspheres with polyethylene glycol comprises mixing a silk fibroin solution of 1-30 wt % with a PEG solution of 10-60 w % and incubating the resulting solution. A controlled-release or sustained-release silk fibroin gel formulation includes a gel-state carrier and a drug dispersed/adsorbed therein, the carrier is a silk fibroin gel formed by blending with LMW-PEG.

Abstract: The present disclosure describes a method that improves the long-range geobody continuity in Multiple Point Statistical methods, wherein the coarsest multi-grid level cells are simulated in a regular path, and the subsequent level cells are simulated in a random path as usual. The method is general and is applicable to different cases: such as hard data conditioning, soft data conditioning, non-stationarity modeling, 2 or more than 2 types of facies modeling, and 2D and 3D modeling. The method is particularly useful in reservoir modeling, especially for the channelized systems, but can be generally applied to other geological environments.

Abstract: Embodiments described herein provide examples of a real-time visual object tracking system. In one aspect, an UAV capable of performing real-time visual tracking of a moving object includes a processor; a memory coupled to the processor; and a camera coupled to the processor and the memory and to capture a video of the moving object. This UAV additionally includes a visual tracking module to: receive a first video image and a first location of the object; receive a second video image following the first video image; place a first search window in the first video image and a second search window in the second video image at the same location as the first search window; compute a correlation between an image patch within the first search window and an image patch within the second search window; and determine an updated location of the object in the second video image.

Abstract: Embodiments described herein provide various examples of an automatic obstacle avoidance system for unmanned vehicles using embedded stereo vision techniques. In one aspect, an UAV capable of performing autonomous obstacle detection and avoidance is disclosed. This UAV includes: a stereo vision camera set coupled to the one or more processors and the memory to capture a sequence of stereo images; and a stereo vision module configured to: receive a pair of stereo images captured by a pair of stereo vision cameras; perform a border cropping operation on the pair of stereo images to obtain a pair of cropped stereo images; perform a subsampling operation on the pair of cropped stereo images to obtain a pair of subsampled stereo images; and perform a dense stereo matching operation on the pair of subsampled stereo images to generate a dense three-dimensional (3D) point map of a space corresponding to the pair of stereo images.

Abstract: A method using polyethylene glycol to prepare fibroin nano/microspheres. A fibroin solution having a mass percentage of 1-30% and a polyethylene glycol solution having a mass percentage of 10-60% are first placed in a 4-60° C. environment for 30 minutes, the fibroin protein solution and the polyethylene glycol solution are then mixed, and fibroin nano/microspheres are produced via incubation and centrifugal washing.

Abstract: The invention discloses a freeze-dried powder of high molecular weight silk fibroin, preparation process and use thereof. The freeze-dried powder is obtained from silk by degumming, dissolution, dialysis, centrifugation, high temperature and high pressure treatment and freeze-drying. A method of preparing silk fibroin microspheres with polyethylene glycol comprises mixing a silk fibroin solution of 1-30 wt % with a PEG solution of 10-60 w % and incubating the resulting solution. A controlled-release or sustained-release silk fibroin gel formulation includes a gel-state carrier and a drug dispersed/adsorbed therein, the carrier is a silk fibroin gel formed by blending with LMW-PEG.

Abstract: The present disclosure describes a method that improves the long-range geobody continuity in Multiple Point Statistical methods, wherein the coarsest multi-grid level cells are simulated in a regular path, and the subsequent level cells are simulated in a random path as usual. The method is general and is applicable to different cases: such as hard data conditioning, soft data conditioning, non-stationarity modeling, 2 or more than 2 types of facies modeling, and 2D and 3D modeling. The method is particularly useful in reservoir modeling, especially for the channelized systems, but can be generally applied to other geological environments.

Abstract: Estimating in-situ stress of an interval having drilling response data is described. Estimating involves obtaining drilling response data of a data rich interval with available data. Estimating relative rock strength as a composite value that includes in-situ stress and rock strength. Estimating a Poisson's ratio from the relative rock strength. Generating a stress model that includes uniaxial strain model using the Poisson's ratio. Verifying the stress model with the available data. Applying the stress models in a non-data rich interval.

Abstract: A method for calculating connected productive regions (“geobodies”) in a hydrocarbon reservoir uses an algorithm which visits a cell in a geological model of the reservoir, assigning a geobody identifier if the cell possesses certain threshold characteristics and adding the connected neighbors of each visited cell to a data queue or stack. The data queue is emptied cell by cell, each cell popped out of the queue being assigned the same geobody identifier value and having its own connected neighbors added to the queue. Cells are popped out until the queue is empty and then another cell in the model which has not yet been visited is selected. The process continues until all cells have been visited. Cells may also be pre-identified as being part of a well; in this case the algorithm will also establish well connectivity.

Abstract: The invention relates to methods for upscaling a three dimensional model. More particularly, but not by way of limitation, embodiments of the present invention includes method for upscaling a three dimensional model by preserving transmissibility.

Abstract: A method for modeling a reservoir is described. One example of a method for modeling a 3D reservoir involves using multiple-point simulations with 2D training images.

Abstract: A method for calculating connected productive regions (“geobodies”) in a hydrocarbon reservoir uses an algorithm which visits a cell in a geological model of the reservoir, assigning a geobody identifier if the cell possesses certain threshold characteristics and adding the connected neighbors of each visited cell to a data queue or stack. The data queue is emptied cell by cell, each cell popped out of the queue being assigned the same geobody identifier value and having its own connected neighbors added to the queue. Cells are popped out until the queue is empty and then another cell in the model which has not yet been visited is selected. The process continues until all cells have been visited. Cells may also be pre-identified as being part of a well; in this case the algorithm will also establish well connectivity.

Abstract: The invention relates to methods for upscaling a three dimensional model. More particularly, but not by way of limitation, embodiments of the present invention includes method for upscaling a three dimensional model by preserving transmissibility.