80 results about "Reference dimension" patented technology

A system and method for the measurement of distances related to an object depicted in an image. One aspect including delivery of supplemental materials for fenestration and for constructing insulating materials for fenestration. A digital image containing a primary object dimension and a reference object dimension in substantially the same plane undergoes digital image processing to provide improved measurement capability. Information regarding a primary object is provided to an automated measurement process, design and manufacturing system to provide customized parts to end users. A digital image is obtained having an observable constraint dimension to which a customized part is to conform wherein the digital image contains a reference object having a reference dimension and a constraint dimension is calculated from the digital image based on a reference dimension. The custom part is designed and manufactured based on the calculated constraint dimension.

The invention discloses a target detection method which comprises the following steps of: acquiring a to-be-detected image, wherein the to-be-detected image is subjected to multi-layer convolution extraction of features in a neural network to generate a feature map; loading modified structural parameters in a neural network model, and generating corresponding anchor box coordinates on the basis ofthe structural parameters, wherein the preset structural parameters comprise a reference dimension of an anchor box, an anchor box scale and a length-width ratio of the anchor box; generating candidate box coordinates on the basis of a region nomination subnet, taking a corresponding region on the feature map according to the candidate coordinates, and by pooling of a ROI (Region Of Interest), obtaining corresponding features; and on the basis of the features, determining prediction box coordinates, and on the basis of the prediction box coordinates, determining a target object position. Theinvention further discloses a target detection device and a computer readable storage medium. According to the invention, a case of generating an optimized prediction box to determine a target objectis implemented, a small target can be detected, and a detection rate for the target is improved.

3D morphological data representative of reference size models of garment brands and respective categorizing data are introduced into an information processing system. These 3D morphological data are indexed by brand names, categorizing data, and volumetric, dimensional, and angular data derived from the morphological data in order to build a database of virtual human body profiles. For selecting a suitable profile matching a consumer's body, his/her personal measurements and categorizing data are introduced into the system, either directly if they are known, or acquired by scanning only a minimum numbers of points on the customer's body in a scanning booth so as to derive these measurements. Instead of methods of the prior art defining the body profiles of the consumers per se from the general population, this method attempts to categorize the body profiles of the specific brands' reference size human models, and all offered sizes, through the brands' grading rules.

The present invention is to provide a standard reference for metrology having finer reference sizes and high-precision electron-beam metrology including the same. By using a standard reference member in which a grating unit pattern of a pitch size proven by an optical diffraction angle by using a laser beam whose wavelength is absolutely guaranteed and a plurality of patterns having a finer size than that (100 nm or less) over the same substrate, fineness and correctness of calibration are made verifiable on a regular basis, and by using an electron-beam collective exposure method for pattern fabrication, fabrication of this standard reference is made possible.

A multimode electronic measuring instrument is provided that includes a ratiometric mode of operation. During the ratiometric mode, a desired dimension is established as a stored reference dimension “X_ref”. After the reference dimension is stored in memory, subsequent ratiometric measurement readouts will equal a current measurement distance “X_curr” divided by the reference dimension X_ref. A ratiometric measurement according to this invention indicates the relationship of a current dimension to another readily changed (reference) dimension. The ratiometric mode of operation can be implemented in combination with conventional function caliper functions to provide a multimode caliper having a simple and intuitive user interface. Setting the reference dimension and interpreting the ratiometric measurement display are particularly easy, to facilitate intuitive understanding and operation.

A method of distance estimation is to be implemented using a digital camera, and includes: selecting a pre-established reference dimension corresponding to a target whose distance is to be estimated; enabling operation of the digital camera to capture a clear image containing the target; obtaining a focal length corresponding to the captured clear image; calculating an image dimension for each of predetermined distance values with reference to the selected reference dimension and the focal length; and showing the distance values on a display unit at positions based on proportions of the calculated image dimensions. The distance of the target can be estimated as one of the distance values corresponding to a dimension of the target image contained in the clear image and shown on the display unit.

The invention relates to an automatic focusing method and system, and a shooting device. The method comprises: a preview image generated by an imaging device is obtained; face identification is carried out on the preview image, a face contour feature frame is determined, and dimension information of the face contour feature frame is obtained; and according to the dimension information of the face contour feature frame, a preset object distance, a reference dimension information of the face contour feature frame, and a preset correction coefficient, a current object distance is determined, and automatic focusing is carried out based on the current object distance. According to the invention, an object distance can be calculated rapidly and automatic focusing is carried out; the focusing speed is fast; sacrifice of masked pixels as well as manufacturing cost increasing can be avoided; and the using requirement of the front camera is met.

An ophthalmic measurement apparatus capable of outputting correction data (objective values) for a patient's eye as approximate as possible to subjective values includes an optical system for projecting a measurement target onto a fundus and detecting an image of the target reflected therefrom using a photoelectric element so as to obtain measurement data on eye refractive power distribution or wavefront aberration, an optical system for photographing an anterior-segment including a pupil using an image-pickup element, a device which detects a size of a pupil area by image processing, and a device which obtains a spherical power, an astigmatic power, and an astigmatic axial angle based on the data within a given area smaller than the pupil area when the detected size is larger than a reference size, and obtains the three values based on the data within the pupil area when the detected size is smaller than the reference size.

The invention discloses a part defect prediction method and device and electronic equipment, and relates to the fields of artificial intelligence, deep learning, cloud computing and computer vision, in particular to the aspect of industrial quality inspection. According to the specific implementation scheme, the method includes: obtaining plane images of multiple planes of the part; cutting the plane image according to a reference size to obtain a plurality of sub-images; inputting the plurality of sub-graphs into a pre-trained defect prediction model to obtain a defect prediction result of each sub-graph; and inputting the defect prediction result into a pre-trained defect identification model to obtain a defect identification result of each sub-graph, the defect identification result comprising a defect type and a defect grade. Through the above scheme, on one hand, accurate identification of real defects of the part can be realized, so that the accuracy of a defect detection resultis improved, and the probability of misjudgment on whether the part has defects or not is reduced; and on the other hand, the input data of the defect prediction model is convenient to process, and the labor cost can be reduced.

A silent chain transmission mechanism includes a sprocket and a silent chain having link interleaved link rows each composed of plural randomly selected link plates and connected together by connecting pins. The outside dimensions of the link plate are smaller than the outside dimensions of a link, but the outside dimensions of the link match the design reference dimensions of a link plate capable of proper meshing with the sprocket. The requirement for manufacturing accuracy and the effort required for assembly of the silent chain are reduced. However, the silent chain travels on the sprocket on the chain traveling line so that improved noise, vibration and friction properties, and traveling stability are realized.

A multimode electronic measuring instrument is provided that includes a ratiometric mode of operation. During the ratiometric mode, a desired dimension is established as a stored reference dimension X_ref. After the reference dimension is stored in memory, subsequent ratiometric measurement readouts will equal a current measurement distance X_curr divided by the reference dimension X_ref. A persistent number of decimal places used to the right of the decimal point as seen on a display is determined based on a current reference dimension X_ref, an increment used for the least significant digit, and an internal measurement resolution of the multimode electronic measuring instrument.

The object of the present invention is to draw a natural contour line in a tuned object and perform clear tuned representation. For each tuned object existing in a virtual three-dimensional space, a reference width 402 that is determined in accordance with a reference size of each tuned object projected on a virtual screen is set, assuming that a distance from a viewing point of a virtual camera (or a distance from the virtual screen) used for perspective transforming the virtual three-dimensional space is a predetermined reference distance Db. The line width W of the contour line of each tuned object is calculated by using an equation of “W=RNDUP (a×Eb×Db/D)” based on a distance D from the viewing point 303 to a reference point of each tuned object and coefficient “a” determined in accordance with the progress status of a game. Here, RNDUP is a function for rounding up the fractional part to the nearest integer.

Methods, apparatuses, media and signals for evaluating a vessel. One method includes receiving at least one measurement of a physical dimension of the vessel, and producing an indication of abnormality in the vessel, in response to the at least one received measurement and at least one population-based parameter for the vessel. Producing may include producing an indication of stenosis of the vessel, in response to the physical dimension measurement and a population-based reference dimension for the vessel. This may include producing a population-based percent stenosis value in response to a ratio of the physical dimension measurement to the population-based reference dimension. Producing may further include identifying a shape characteristic of the vessel, which may include producing a tapering comparison value in response to the tapering of the vessel and a population-based average tapering value. The vessel may include a coronary artery segment, for example.

According to the embodiments of the present invention, there is provided a split mold insert positioning device and a method of use thereof. More specifically, a split mold insert positioning device is provided. The split mold insert positioning device comprises a split mold insert positioning interface dimensioned in a complementary arrangement to a reference dimension of a given split mold insert; and a tooling interface for providing access to the given split mold insert when the split mold insert positioning interface is positioned over the given split mold insert.

The invention discloses detection equipment and a detection pin thereof. The detection pin comprises a handle, a body part and a scribing part. An oblique plane is formed at the end, facing a hole to be detected, of the scribing part, and a scribing sharp corner is formed through one end of the oblique plane. The body part sequentially comprises a connecting section, a rotating shaft section, a detection section and a guide section. The connecting section is fixedly connected with the handle. The scribing part is mounted on the rotating shaft section in circumferential rotating and axial sliding modes. The external diameter of the detection section is larger than the external diameter of the guide section, the shape of the outer contour of the detection section is the same as the reference shape of the hole to be detected, and the boundary dimension of the detection section is the same as the reference dimension of the hole to be detected. At least one anti-rotation plane is formed on the outer side wall of the guide section. In this way, hole site detection of non-circular holes is achieved. Due to the arrangement of the detection section, qualified parts can also be detected in time. Compared with the prior art, piece-by-piece scribing calculation is needless, so that the detection process is simplified, hole sites can be recognized rapidly, and working efficiency is improved.

A system for determination of the volume of a stack of logs comprises digital image acquisition of a stack end with a known reference dimension, image display and image recognition for determination of the total volume of timber. Volume is determined by image analysis routines for detecting the end of each log in the digital image and overlying circles substantially coincident with each detected log end on the digital image. An operator may manually adjust or vary the circles on an interactive screen. The areas of each overlaid circle is calculated and total volume is determined factoring in a standardized log length and stratification data entered by the operator.

The present disclosure relates to a machine tool, in particular a grinding machine, and to a method for measuring a workpiece, in particular a workpiece diameter, in a machine tool, in particular a grinding machine, which comprises a workpiece mount, a tool unit, a measuring device and a control device which is connectable to the measuring device and the tool unit, wherein the measuring device is accommodated on the tool unit and comprises at least two measuring probes, wherein in a measuring configuration the at least two measuring probes are spaced apart by a basic spacing which defines a measurement region, wherein the basic spacing is selected to be greater than a known reference dimension, wherein the control device is configured for acquiring values detected by way of the at least two measuring probes, of detecting an actual position of the tool unit, and, on the basis of a displacement path of the tool unit when probing a workpiece which is moved into the measurement region, of determining an actual spacing, in particular an actual diameter, with consideration to the reference dimension and/or the basic spacing.