77 results about "Topographical mapping" patented technology

A method and system control the depth of corneal ablation during optical surgery by mapping the anterior and posterior surfaces of a patient's cornea to obtain full pachymetric topographical mapping of the patient's cornea. The patient's corneal pachymetric topographical mapping is used to identify a desirable corneal bed, and to guide a surgical laser in ablating a portion of the anterior surface of the patient's cornea to produce the desired corneal bed for appropriate vision correction.

A pressure gauge includes a diaphragm having a substantially rigid outer portion and a displaceable inner portion that displaces in response to a pressure difference between first and second sides of the diaphragm. The pressure gauge further includes a sensor located proximate to the diaphragm and adapted to sense the displacement of the diaphragm inner portion. The pressure gauge further includes a monitor and control system coupled to the sensor (wired or wireless), and adapted to determine the pressure difference from the displacement of the diaphragm. The sensor and the monitor and control system can be implemented with one or more optical sensing designs, capacitive sensing designs, or other devices used to measure sub-micron displacements. For low pressure applications, such as lithography applications, the diaphragm is sensitive to pressure changes in a range of approximately 0.1 to 0.5 inches of water. The diaphragm and sensor have a relatively high bandwidth and can thus be implemented in relatively high speed applications. The invention can be implemented in, for example, lithography proximity sensing equipment and lithography topographical mapping equipment.

The present invention combines an existing photogrammetric mapping system for building-model reconstruction. Topographic maps and models are produced simultaneously. The models can be edited along with aerial images in an online environment. Thus, efficiency and accuracy for building-model reconstruction are increased.

The present invention relates to a sport stick that measures the driving force generated by the upper body, which is applied to the ground through poles during the natural performance of nordic walking or any other sport, where poles are used to drive / propel the body forward. An inclination sensor along with a pole length sensor (pole length constant in a fixed length pole) has been placed into the pole for the achievement of the most suitable biomechanical performance, i.e. proper technique. The sport pole uses the Global Positioning System along with a topographical map to ensure that the slope of terrain does not affect the inclination sensor measurements. All collected data is analyzed by a control center, wherein correct usage models have been saved along with a collection of the user's anthropometric and fitness levels.

The present invention relates to a sport stick that measures the driving force generated by the upper body, which is applied to the ground through poles during the natural performance of nordic walking or any other sport, where poles are used to drive / propel the body forward. An inclination sensor along with a pole length sensor (pole length constant in a fixed length pole) has been placed into the pole for the achievement of the most suitable biomechanical performance, i.e. proper technique. The sport pole uses the Global Positioning System along with a topographical map to ensure that the slope of terrain does not affect the inclination sensor measurements. All collected data is analyzed by a control center, wherein correct usage models have been saved along with a collection of the user's anthropometric and fitness levels.

The invention discloses a pain detecting and positioning method and system based on brain waves and neural network, and the method comprises the steps: removing related noise of original electroencephalogram signals through independent component analysis, carrying out the pain grading of the electroencephalogram signals, carrying out the processing through a signal time division window, integrating the pain level data and then establishing a pain level data set; respectively generating spectral topographic maps of time windows of Theta, Alpha and Beta frequency bands related to pain through Fourier transform, azimuth isometric projection and a CloughTocher interpolation algorithm, and combining the spectral topographic maps into a multi-channel electroencephalogram sequence; obtaining a time-space feature vector of a brain wave sequence related to the pain degree and the pain position through a CNN-LSTM-AM neural network; and inputting the brain wave pain features learned by the CNN-LSTM-AM neural network into the pain classifier model to evaluate the pain level and the pain position. According to the invention, the pain degree change and position change characteristics of the brain waves can be accurately and efficiently extracted and processed, and the pain level and the pain position can be automatically identified.

The invention discloses a simulation image generation method and device. The method comprises the following steps: determining a working imaging model and camera parameters of a camera; determining acamera imaging area and a pixel imaging area of the camera according to the digital topographic map of the target object, the working imaging model and the camera parameters; and generating a simulation image of the target object according to the pixel value of the pixel imaging area, the simulation image at least comprising a camera image oriented to a deep space exploration task digital simulation system. According to the invention, the technical problem that the camera image for the deep space exploration task digital simulation system cannot be effectively obtained in the related technology is solved.

A method of forming a topographical pattern in a surface of a resist layer, comprising sequential steps of:(a) providing a substrate having a surface;(b) forming a desired thickness resist material layer on the substrate surface;(c) subjecting selected areas of the surface of the resist layer to exposure to an energy beam to form therein a latent image of a desired topographical pattern to be formed therein;(d) contacting the surface of the resist layer with a liquid developing solution comprising a preselected solvent for developing the latent image into the desired topographical pattern while simultaneously supplying ultrasonic energy thereto, the combination of supplying the ultrasonic energy to the preselected solvent providing an increased developing interval and improved image contrast between the exposed and unexposed areas of the layer of resist material, relative to when the liquid developing solution does not comprise the preselected solvent and the ultrasonic energy is not supplied thereto.

The present disclosure pertains to a system for providing persistent mission data to a fleet of vehicles. In some implementations, the system receives (i) information related to a first vehicle's location, the altitude of the first vehicle, and the first vehicle's orientation from the one or more first sensors and (ii) imagery data from one or more second sensors disposed on the first vehicle, wherein the imagery data includes instantaneous imagery and previously recorded imagery. The system geolocates the imagery data based on the first vehicle's altitude and the first vehicle's orientation relative to the terrain. The system transmits one or both of the instantaneous imagery or the previously recorded imagery to a fleet of vehicles. The system effectuates presentation of the imagery data on a three dimensional topographical map of the terrain.

Generation of treatment recommendations for topographic-based excimer laser surgical procedures is described that includes generating accurate cylinder compensation and spherical compensation values that are adjusted to compensate for unique characteristics of advanced topographic-based excimer laser surgical systems. Generating treatment recommendations generally includes determining a topographic vector from a topographic corneal map of the eye, determining a posterior astigmatism vector and an anterior astigmatism vector for the eye, and generating an interior astigmatism vector using the topographic vector, the posterior astigmatism vector, the anterior astigmatism vector, and a manifest astigmatism vector. In various embodiments, the cylinder compensation is generated using the interior astigmatism vector and the posterior astigmatism vector, and the spherical compensation is generated using an initial spherical compensation modified by a topographic addback modifier and a cylinder addback modifier.

The invention discloses a method for acquiring a large-view-field incident wavefront aberration of individual human eyes. The method specifically comprises the following steps: S1, constructing a semi-personalized emergent eye model according to corneal topographic map data, human eye emergent wavefront aberration data and Navarro human eye model parameters; S2, optimizing a crystalline lens of the semi-personalized emergent eye model to obtain a large-view-field emergent personalized eye model; and S3, carrying out the inversion operation on the large-view-field emergent personalized eye model to obtain a large-view-field incident personalized eye model; and obtaining the large-view-field incident wavefront aberration of the human eyes based on the large-view-field incident personalized eye model. According to the method, the large-view-field incident wavefront aberration of the individual human eyes can be obtained only by means of existing clinical technical conditions, and the method has the characteristics of large in view field angle for analysis and easiness for popularization.

The invention discloses anMI-BCI system based on multi-scene induction and a control method thereof. The system four types of target guide type motor imagery induction scenes, namely sound characters, picture videos, 3D life scenes and virtual game scenes. a subject is inducted to perform motion imagination at different angles. During training, multi-channel EEG signals in a brain motion area are collected. Through signal preprocessing, feature extraction and PSO-SVM intention recognition, a result is outputted to a virtual scene for interactive control, thereby forming a closed-loop feedback training system. A dynamic brain topographic map is drawn by evaluating the nerve activation degree of a motion area so that visual nerve feedback reflecting the brain activation condition is provided for the subject. Adaptive switching adjustment is made on the training scene according to the current nerve activity degree to ensure that the subject is continuously in a motor nerve maximum degree activated state so as to improve the recognition rate of the system.