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3763results about How to "Affect quality" patented technology

Model-based grayscale registration of medical images

Numerical image processing of two or more medical images to provide grayscale registration thereof is described, the numerical image processing algorithms being based at least in part on a model of medical image acquisition. The grayscale registered temporal images may then be displayed for visual comparison by a clinician and/or further processed by a computer-aided diagnosis (CAD) system for detection of medical abnormalities therein. A parametric method includes spatially registering two images and performing gray scale registration of the images. A parametric transform model, e.g., analog to analog, digital to digital, analog to digital, or digital to analog model, is selected based on the image acquisition method(s) of the images, i.e., digital or analog/film. Gray scale registration involves generating a joint pixel value histogram from the two images, statistically fitting parameters of the transform model to the joint histogram, generating a lookup table, and using the lookup table to transform and register pixel values of one image to the pixel values of the other image. The models take into account the most relevant image acquisition parameters that influence pixel value differences between images, e.g., tissue compression, incident radiation intensity, exposure time, film and digitizer characteristic curves for analog image, and digital detector response for digital image. The method facilitates temporal comparisons of medical images such as mammograms and/or comparisons of analog with digital images.
Owner:HOLOGIC INC

Base thread monitoring device for sewing machine

The invention provides a base thread monitoring device for a sewing machine. The sewing machine comprises a base plate, a bobbin case and a bobbin core which is filled with base thread in a winding mode, wherein the bobbin core is completely contained in the bobbin case, a thread winding column of the bobbin core is provided with a light reflecting surface, a light transmitting hole is formed in the side wall of the bobbin case, a photoelectric sensor is installed on the base plate, the photoelectric sensor is arranged on the outer side of the bobbin case, and is arranged opposite to the light transmitting hole, and the photoelectric sensor is composed of a receiver and a emitter. When the base thread on the thread winding column is large in amount, the base thread can shield the light reflecting surface. When the base thread is almost used out, the light reflecting surface is gradually exposed, the light reflecting surface can receive a signal which is given out by the emitter and enters through the light transmitting hole, and can reflect the signal to the receiver, the receiver gives out a signal after receiving the signal to have control over the sewing machine, and achieves the objective that the sewing machine cannot carry out sewing of the next time after finishing the current sewing, and therefore the phenomenon that the quality of a sewing product is influenced by lack of the base thread can be avoided.
Owner:JACK SEWING MASCH CO LTD

Motor control system for oil extractor in oil field

The invention relates to a motor control system for an oil extractor in an oil field, which comprises a plurality of permanent magnet motors, a three-phase rectifying cabinet, a super capacitor and aplurality of inverters, wherein the three-phase rectifying cabinet is externally connected with a three-phase power-frequency alternating-current power grid and outputs a direct-current power supply;the positive end of the direct-current power supply is connected with the positive end of the super capacitor, while the negative end is connected with the negative end of the super capacitor; the positive end of the super capacitor is connected with the positive end of each of the inverters respectively, while the negative end is connected with the negative end of each of the inverters respectively; and the three-phase output end of each of the inverters is connected with the three-phase input end of each of the motors respectively. Through the direct-current parallel-in operation of the plurality of permanent magnet motors, the motor control system provides the energy generated by dropping potential energy of an oil extraction rod of the oil extractor in the oil field for the permanent magnet motors which raise electromotion so as to greatly improve the operation efficiency of the whole system.
Owner:SHANGHAI EDRIVE

Measuring instrument and method for determination of the properties of an item and its surface

ActiveUS20120206710A1Affect qualityClear impact both on the production process quality assuranceCaliper-like sensorsOptical rangefindersOptical radiationMeasurement device
A measurement device for the determination of the characteristics of the object's surface by means of the optical radiation, wherein a measurement device comprises an optical radiation source and a detector to receive the radiation reflected from the surface being measured. In addition, a measurement device comprises an emitted optical radiation processing unit, which is adjusted to split optical radiation emitted by an optical source into separate wavelengths and to direct said separate wavelengths to the object being measured in a direction, that differs from the normal of the surface being measured so, that at least the shortest and the longest wavelengths of said wavelengths are focused on different halves and different heights of the measured object's surface, in the direction of the normal of the surface being measured. In addition, a measurement device comprises a reflected optical radiation processing unit, which is adjusted to receive an optical radiation reflected from the measured object at least in the direction of a specular reflection, which differs from the normal of the surface being measured, and to direct received optical radiation to said detector. Still further, the measurement device is adjusted to analyze an electric signal produced by the detector and proportional to the intensity of the radiation focused thereto, and to further determine a surface gloss (gloss degree) and / or thickness characteristic property of the measured object, based on the intensity of its wavelength, the focus point of which was located on the measured surface, and which wavelength was the strongest reflected from that point to the detector in the specular geometry.
Owner:FOCALSPEC

Mobile terminal application control method and device

ActiveCN102520858AAffect qualityAvoid affecting the performance of the applicationInput/output processes for data processingRelative displacementTime limit
The embodiment of the invention discloses a mobile terminal application control method and a device. The method comprises the following steps: detecting relative displacement of a mobile terminal according to a preset detection time interval in a preset application startup time limit after receiving an application execution instruction; determining whether the relative displacement of the mobile terminal exceeds a preset displacement threshold; determining that the mobile terminal is in a first state if the relative displacement does not exceed the displacement threshold, otherwise, determining that the mobile terminal is in a second state; counting the times of the mobile terminal in the first state and the second state; determining whether the mobile terminal is in a still state; and executing corresponding application if the mobile terminal is in the still state, otherwise, not executing the corresponding application. The mobile terminal application control method and device provided by the embodiment can detect the stability of the mobile terminal according to application startup time limit of the mobile terminal, and can automatically execute corresponding application when the mobile terminal is in the still state, no need for clicking the mobile terminal by user.
Owner:WONDERSHARE TECH CO LTD

Automatic control multi-spray-head electrostatic spinning equipment

The invention provides automatic control multi-spray-head electrostatic spinning equipment, which comprises a high-voltage electrostatic generator, a receiving device and a lifting device and is characterized by also comprising an automatic control box, a dustproof transverse moving slide table, a multi-passage precise liquid supply pump and a self-cleaning type multi-spray-head device, wherein data interfaces of multi-passage precise liquid supply pump, the dustproof transverse moving slide table and the receiving device are respectively connected with the automatic control box, an injector is fixedly arranged at the multi-passage precise liquid supply pump, the self-cleaning type multi-spray-head device is connected with the front end of the injector, a bakelite plate covered with a conducting wire is fixedly arranged on a spinning head, a conducting clamp post is fixedly arranged on the bakelite plate covered with the conducting wire, and the high-voltage electrostatic generator is connected with the conducting clamp post. The automatic control multi-spray-head electrostatic spinning equipment has the advantages that the precision, integration and automation degree is high, the operation is simple, convenient, safe and fast, the production efficiency is high, and wide application prospects are realized in the industrial aspect of nanometer fibers.
Owner:DONGHUA UNIV
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