30results about How to "Objective measurement" patented technology

The present invention belongs to the field of ophthalmic medical equipment and is one strabismus measuring device and method. The strabismus measuring device of the present invention includes a head fixing unit an eye video camera, a system calibrator, a stared target, a light source and a computerized image analysis system. The strabismus measuring instrument designed based on the present invention can measure strabismus fast, precisely and objectively.

The invention discloses a video time delay detection method. The method comprises following steps of obtaining current first real time information of a local end image collection device and a first image displayed by a local end video display device at the same time, wherein the first image is the image containing the second real time information corresponding to the first image collected by the local end image collection device; and determining time delay information according to the first real time information and second real time information. The invention also discloses a video time delay detection device.

The present invention provides a strabismus degree measuring apparatus. It is formed from table frame, coordinate machine, head frame, contact lenses, parallel light emitting device and far and near 9 eye position objective stare systems. Besides, said invention also provides its strabismus degree measuring method and concrete steps by using said apparatus.

The invention relates to methods for diagnosing or monitoring psychotic disorders such as schizophrenic or bipolar disorders, comprising measuring the level of one or more biomarker(s) present in a cerebrospinal fluid sampie taken from a test subject, said biomarker(s) being selected from the group consisting of: glucose, lactate, acetate species and pH. The invention also relates to methods of diagnosing or monitoring a psychotic disorder in a subject comprising providing a test sample of CSF from the subject, performing spectral analysis on said CSF test sample to provide one or more spectra, and, comparing the one or more spectra with one or more control spectra. The invention also relates to sensors, biosensors, muiti-analyte panels, arrays, assays and kits for performing methods of the invention.

A QoS guarantee system of a 5G satellite convergence network comprises a resource cache and flow control module, and is characterized in that services in the network are classified, and data flows ofdifferent services are separated; a network monitoring module can set a probe at a network entrance of the 5G satellite convergence network, the probe is used for monitoring network flow of differentservices to obtain network delay, jitter and packet loss rates of the different services, and the network delay, jitter and packet loss rates are sent to the evaluation and decision module; the evaluation and decision module is used for obtaining an MOS score of QoS according to the network delay, jitter and packet loss rates of different services, and determining a network adjustment strategy anda network adjustment strategy according to the MOS score by utilizing a pre-stored corresponding relationship between the MOS score and the network adjustment strategy, including processing of data packets in the network, routing decision and network configuration; and the network control module is used for adjusting and controlling the network according to the network adjustment strategy. According to the invention, non-blocking stable communication capability is realized, and diversified application services are provided.

The invention relates to a method used for measuring the area and the shape of a forest gap in the field of forestry and ecology which includes the steps of: using a digital camera with a fish-eye lens to vertically upwards shoot a semi-spherical image at a certain position in the forest gap; measuring the parameters of the forest gap; processing the semi-spherical image and recording the coordinate of the highest point of the edge wood of the forest gap in the image; calculating the area and the shape of the forest gap according to the projection principle of the fish-eye lens as well as each coordinate point and the parameters of the forest gap. The invention firstly provides a method for measuring the shape of the forest gap and fills in the blank in the researching field. The method can be adopted to fast measure the area and the shape of the forest gap, thus avoiding the effect of anthropic factors in the existing method and improving the estimation precision of the area of the forest gap; the method is easily operated and the measuring result is not affected by the measuring position.

The invention relates to an attention training method and system based on cooperative control of breathing and force tactile sense. By combining the characteristic of paying attention to body breathing during meditation with the characteristic of paying attention to muscle strength control by a force tactile sense channel, visual detection of an attention state in a training process is realized bya synchronism error between a breathing signal and a force tactile sensor signal. The training method comprises four subtasks. The training difficulties of the four subtasks are in turn increasing, and can be separately trained or progressively trained. An attention training system for implementing the attention training method is also provided. The attention training is completed by the continuous cooperative control of the breathing and the force tactile sensor, and the attention focusing state in the training is reflected by the synchronism error between the breathing signal and a muscle strength output signal; when the calculated synchronism error exceeds a specified threshold value, the system sounds an alarm reflecting a low attention level; meanwhile, the design of the progressivestage subtasks is favorable for maintaining the enthusiasm and attention of a user for the training, so that the attention adjustment ability of target people is improved.

The invention provides a processing method of a muscle image by utilizing Hough transform, which is to automatically mark positions of upper myolemma and lower myolemma by adopting Hough transform, and calculate the thickness between upper myolemma and lower myolemma by design algorithm. The method comprises the following steps: according to the characteristics of a muscle image, at least finding out front two peak points in a Hough matrix so as to detect positions of upper myolemma and lower myolemma in the image; extracting straight lines in positions of the upper myolemma and lower myolemma; according to information of the marked straight lines, calculating the sum of distances of corresponding points in the same row of upper and lower straight lines to acquire the area of muscle; and calculating the average thickness of muscle by dividing the muscle area by the muscle length, wherein the muscle length is the width of the image. According to the image processing method, the thickness of muscle can be quickly and accurately measured, and can be integrated into ultrasonic acquisition equipment for real-time measurement of muscle thickness.

The invention provides a measuring method of technical parameters of delay-type audio devices of an electrophone. In the method, the characteristics of a digital oscilloscope are utilized to measure parameters of total delay generated by various types of low-frequency wave audio devices generated by utilizing an actuating signal source and the waves generated by the actuating signal source, and to determine the technical parameters of scanning depth, scanning speed and the like. The invention can be used for objectively measuring the values of the technical parameters, breaks through methods which only can carry out subjective judgment in the field, provides a corresponding standard and has simple operation, rapidness and accuracy.

The invention provides a visual angle measuring method of a liquid crystal display device, comprising: placing a test piece on an optical measuring bench, and allowing the center of the test piece tocoincide with a measuring center of the optical measuring bench; acquiring, in a preset angle range, XY chromatic values of multiple measuring points of a displayed picture of the test piece at different view angles; calculating NTSC value of each measuring point according to the acquired XY chromatic values; using a view angle corresponding to the measuring point having the NTSC value of 1 as a visual angle boundary value of the test piece. The method provided herein allows the visual angle of the liquid crystal display device to be objectively measured, so that subject influencing factors from manual measurement are avoided.

The invention relates to a method for judging one-way sweat guiding performance of a fabric material. The method comprises the following steps of flatly placing a liquid level sensor on a light-transmitting plate, placing a sample above the liquid level sensor, and conveying simulated sweat containing an ultraviolet fluorescent indicator to the surface of the sample; meanwhile, triggering a signal transmitter to send pulse signals to an irradiation device and an industrial camera serving as an image acquisition device so that the irradiation device and the industrial camera emit ultraviolet strong pulse light at the same frequency to irradiate the light-transmitting plate from the lower part of the light-transmitting plate and acquire images from the lower side of the light-transmitting plate; and collecting light spots according to time intervals to form an image sequence, acquiring an array of the area of the light spots after processing, setting the first derivative of the array to time to be the change speed of the size of the light spots, and using the change speed of the size of the light spots for judging the sweat discharging capacity of a sample. The one-way sweat guiding performance of the fabric is measured through a liquid water permeation capacity, and the relation between the related performance of the fabric and the comfort of the human body is reflected more scientifically and reasonably.

The invention relates to a clinical measurement method for a skull defect area scalp superficial area, and belongs to the technical field of medical measurement. The clinical measurement method for the skull defect area scalp superficial area comprises the specific steps that 1, an ultraviolet light irretrievable color inelastic ultra-thin soft material with grids covers the skull defect area scalp surface of an object needing detecting, and the edge of a skull defect area is described; 2, an ultraviolet radiator with the irradiation strength of 80 mu w/cm<2> is used for irradiating the position 1.0 m away from the skull defect area scalp surface for 20 seconds; 3, the number of the allochroic grids is counted and the skull defect area scalp superficial area is computed according to a conventional method. The devices used in the method are purchased on the market. The clinical measurement method for the skull defect area scalp superficial area has the advantages of being low in cost, convenient to operate, and capable of accurately, objectively and rapidly carrying out clinical measurement on the skull defect area scalp superficial area.

The embodiment of the invention relates to the technical field of display, and discloses a smear detection method, which comprises the following steps of: acquiring a measurement image in a process of moving from a first display position to a second display position when a test object of a display panel to be detected respectively displays three colors; determining tristimulus values in a smear area in the measurement image corresponding to the three colors; according to the tristimulus values in the smear area corresponding to the three colors, a white color coordinate measurement value is determined, and the white color coordinate measurement value is regarded as the white color coordinate measurement of the corresponding white smear area in the process of moving from the first display position to the second display position when the test object displays white; and determining a smear color cast value of the display panel to be tested according to the white color coordinate measurement value and a pre-acquired white color coordinate true value of the test object. According to the smear detection method and device and the storage medium, the method for accurately and objectively measuring the color cast condition of the smear area of the display panel to be detected is provided.

The invention relates to a method for testing brake systems of motor vehicles during the manufacturing process, in the assembly line of automobile manufacturers, in which method the brake pedal is actuated by means of an automatically controlled device and the pedal travel and pedal force are measured by means of associated measuring devices. The invention addresses the problem of modifying a brake pedal test which is known per se in such a way that the proportion of false NIO evaluation results regarding the residual air can be substantially reduced, and the proportion of false IO evaluation results can be reduced at least to an insignificant proportion. This problem is solved in that a travel-force curve is plotted on the basis of pedal travel and pedal force during pedal motion, and is evaluated by means of a physical brake system model which isolates the constructive influence of the individual components of the brake system. In addition, the travel difference between different fixed points of different vehicles is taken into account when calculating the pedal travel in order to compensate for the variable influence of wheel brake slack on pedal travel.