1640 results about "Face shape" patented technology

The efficient numerically controlled polishing process and apparatus for great aperture aspherical optical elements belongs to the field of precise optical machine technology. The polishing process includes: constituting polishing process model based on the profile data obtained through measurement with interferometer or other instrument, determining the machining path, speed, pressure and other parameters of the element under the control of computer to perform simulating machining, verifying the technological parameters based on the simulating machining results and determining the ultimate technological parameters, creating NC program and machining. The present invention has high machining efficiency and high machining precision.

An object three-dimensional outline measurement device and a measurement method are disclosed, the device is composed of a laser diode, a lens, an aperture diaphragm, a two-dimensional Dammam grating, a cylindrical mirror and an area array CCD camera, a transmission line and a computer, the connection relationship therebetween is as below: a beam emitted by the laser diode passes through the lens, the aperture diaphragm, the two-dimensional Dammam grating, and the cylindrical mirror sequentially to form one-dimensional projection array stripes, which illuminates the surface of an objective to be measured, the area array CCD camera collects the grating projection strips modulated by three-dimensional digital shape on the surface of the measured objective and outputs the strips to the computer via the transmission line, the computer includes an image collecting interface, image collecting software and three-dimensional measurement information reconstruction algorithm software. The invention has, by utilizing the Fourier transform three-dimensional outline measurement structure, the advantages of high energy utilization rate, simple measurement structure, high measurement precision, convenient computer reconstruction information processing and great easiness for operation.

The invention relates to a pallet machine which can automatically pallet bagged materials as bulked cement, chemical materials, rice or the like. The invention comprises a feeder, a bag rotation transmitter, a compression transmitter, a buffer transmitter, a grouped transmitter, a grouped bag pusher, a layering machine, a side face shape corrector, a vibration shape corrector, a lifter, a disc feeder, a pallet bearing outputting device, an output transmitter, a pallet disc storage transmitter, an electric control cabinet, a walk bench, and an arm rest lift. The invention has reasonable structure, low cost, and high speed, which combines a plurality of single machines, with clear and reasonable structure and simple maintenance.

The present invention discloses a facial image face score calculating method based on convolutional neural networks. The method comprises acquiring facial images with and without face score labels; performing earlier-stage pretreatment to acquire key points of a face and extract overall and partial face image blocks; pre-training and then tuning the convolutional neural networks, and extracting and combining depth characters and shape features of the face to serve as face score features; inputting the face score features into a classifier to train to obtain a face score classifier; and performing the above steps on the facial images to be detected in turn to obtain respectively face score features, and calculating the face score features of the facial images by the face score classifier to obtain respective face scores. According to the calculating method provided by the present invention, the convolutional neural networks are adopted to extract depth characters of the overall and partial facial images, and through combination with the face shape features, face score calculating uncertainty under complex situations is overcome, the robustness is high, and excellent effects in engineering application are achieved.

The invention relates to a device for detecting a surface shape of an optical aspheric surface by a sub-aperture stitching interferometer, which comprises an interferometer, a transmission sphere, an adjusting mechanism, a numerical control device and a computer, wherein parallel light emitted by the interferometer is changed into a standard spherical wave through the transmission sphere; the computer controls the action of the adjusting mechanism by the numerical control device to adjust the relative position of the interferometer and an aspheric surface to be detected so that the standard spherical wave is incided to each sub-aperture of the detected optical aspheric surface sequentially and returns to the interferometer; and the computer extracts phase distribution data of each sub-aperture measured by the interferometer for analysis and processing, and the error distribution of the surface shape of a full aperture of the detected optical aspheric surface is obtained by a stitching algorithm. The device broadens horizontal and vertical dynamic range tested by the interferometer, can detect surface shapes of large-aperture concave and convex aspheric surfaces and an off-axis aspheric surface in high resolution and high precision without other auxiliary optical elements, and has low testing cost and short construction period.

In a video game, a player is allowed to create a character in the video game by selecting feature variables that define a character feature according to two or more target features and a feature variable. The target features can be are morph targets and the feature variable might represent relative distance of the player's desired feature relative to the morph targets. In a specific example, the player might be presented with two face shapes as morph targets and an input slider for a corresponding feature variable where the resulting face feature of the character matches one of the morph targets when the input slider is at one extreme, matches the other morph target when the input slider is at the other extreme and is a combination of the morph targets when the input slider is between the extremes. The character features might include face shape, height, weight, skin color, skin texture, body build, particular sports figures' faces, clothing, hair, eyes, nose, mouth, lips, hands, feet, etc. The player can also purchase items from a shop according to restrictions on cost, sponsorship, availability, time of day, date and/or day of year.

The invention discloses a high-frequency error detection device and method in the large caliber large relative aperture non-spherical mirror, the device including the five-axis movement adjustment platform with the interferometer focusing platform, the side swing reflecting mirror side swing platform located in front of the interferometer focusing platform, and the measured non-spherical mirror 3D movement adjustment platform located below the side swing reflection mirror side swing platform, and the multiple points supporting machine with the laser wave surface interferometer, the side swing reflection mirrors, and the measured non-spherical mirror installed on the corresponding platforms, and the main control computer with built-in detection data-processing algorithm program connecting with the laser wave surface interferometer. The device uses the main control computer to process the detection data-processing algorithm, which can combine the detected multiple part regions error surface maps into error surface map with medium or high frequency in full caliber, including the initial pose determining method, the overlapping regional data extraction algorithm and the regional data stitching algorithm. The invention is a high-frequency error detection device and method with low-cost, high-precision, high-efficiency in the large caliber large relative aperture non-spherical mirror.

The invention discloses a video-based 3D human face expression cartoon driving method, which comprises the following steps: (1) image preprocessing, namely improving the image quality through light compensation, Gaussian smoothing and morphology operation of a gray level image; (2) BP human face detection, namely detecting a human face in a video through a BP neural network algorithm, and returning the size of the position of the human face for providing a smaller search range for human face characteristic point positioning of the next step to ensure instantaneity; (3) ASM human face characteristic point positioning and tracking, namely precisely extracting characteristic point information of human face shape, eyes, eyebrows, mouth and nose through an enhanced active shape model algorithm and a predicted meanshift algorithm, and returning the definite position; and (4) data information conversion, namely converting the data information acquired in the human face characteristic point positioning and tracking step to acquire the motion information of the human face. The method can overcome the defects in the prior art, and can achieve live human face cartoon driving effect.

The present invention discloses a three-dimensional human face identifying method based on human face full-automatic positioning and belongs to the computer vision and mode identifying field. A human face virtual image generating method comprises the steps as follows: a two-dimensional human face shape model and a partial veins model are established; a two-dimensional human face image is positioned exactly; the two-dimensional human face image is processed for three-dimensional reconstruction according to the positioning result to obtain a three-dimensional human face image; the three-dimensional human face image is processed for illumination model treatment to obtain a virtual image with changeable gestures and illumination. The method comprises the steps as follows: characteristics are picked up from the human face image to be identified and compressed; the human face is identified according to the compressed and processed characteristics. The present invention embodiment generates the virtual image by the three-dimension reconstructing of the two-dimensional human face image and by processing the illumination model, thereby increasing the sample space of the gesture and the illumination change of the image; at the same time, the three-dimension reconstructing speed is improved greatly, thereby ensuring that human face image identification has higher efficiency and recognition rate.

The invention discloses a method for large-calibre aluminium-alloy pipeline no-liner tungsten electrode argon arc one-side welding both-side formation, comprising the following steps of: assembling of groove angle and clearance, grinding of tungsten electrode, cleaning before welding, adjusting welding process parameters, tack welding, and welding of a bottom coating, a filling layer and a covering layer. The pipe is horizontally fixed and the position is marked by hour; the welding sequence is left half-ring and right half-ring; each half-ring comprises overhead welding, vertical position welding and downhand welding; the welding is started at a position where L is equal to 5-10mm close to six of the overhead welding; the vertical position welding is then carried out; finally, the front half-ring is ended at 12 of the downhand welding; before the rear half-ring starts welding, the connection is grinded as a slope; the welding seam formed by the connection and the front half-ring welding position is overlapped by 3-5mm; the welding of the rear half-ring is started from 6 of the overhead welding and ended at 12 of the downhand welding through the vertical position welding; the welding is carried out by a continuous feeding method. The surface of the welding seam of the method has no pores or cracks, is completely welded and beautiful, and has good internal and external forming; by the non-destructive testing, the first-time qualification rate achieves 100%, the welding seam achieves the class-1 quality, the construction procedures are reduced, and the construction cost is reduced.

An object of the invention is to reliably control chip, particularly that produced in profiling. To achieve this, rake faces are formed on polygon faces of an insert in the form of a polygonal plate shape, and a pair of cutting edges extending respectively from corner parts of the polygon faces are formed on a ridge part of the polygon faces, and each of the rake faces is gradually inclined as it becomes farther away from the cutting edge, and a land formed along the cutting edge, is inclined so that it gradually sinks as it become farther away from the cutting edge at an angle of inclination smaller than a rake angle, and angles of inclination of these rake face and land are made smaller in the direction to separate from a tip of the corner part along the cutting edge, and a main convex being a convex spherical face shape is formed at intervals between the cutting edges, on the corner part C, and at least one pair of sub convexes being a convex spherical face shape is also formed respectively at positions away from this main convex, along the pair of cutting edges.

In this semiconductor device, connection parts between wafers are electrically insulated from each other, and a junction face shape of second electrical signal connection parts is larger than the shape of a positioning margin face that is formed by an outer shape when the periphery of a minimum junction face, which has half the area of a junction area of the first electrical signal connection part, is enclosed by a same width dimension as a positioning margin dimension between the first wafer and the second wafer.

The invention discloses a method and a device for measuring surface topographies of mirror and mirror-like objects. Phase measurement deflectometry is adopted to measure mirror and mirror-like surface shapes, a combination between a liquid crystal display and a planar mirror serves as a calibration plate, the liquid crystal display is fixed and can not move, the planar mirror moves freely for four times, an image reflected by the planar mirror is photographed by a CCD detector, linear solution and beam method adjustment are then used for completing calibration on inner parameters of the camera, global pose estimation is used for completing calibration on the relative relation between the liquid crystal display and the camera, and finally, a three-dimensional topography of a to-be-detected mirror surface is calculated and obtained through a gradient integral of the phase measurement deflectometry. According to the device and the method of the invention, defects that the calibration plate is needed and a precise positioning control point is attached to the planer mirror during the calibration process in the traditional method are overcome, the measurement cost is low, and he measurement speed is quick; and constraint conditions such as rotation matrix orthogonality during a perspective imaging process and a fourier transform method are introduced for corresponding point matching, and influences by high noise and multiframe processing on three-dimensional topography recovery can be overcome.

The invention discloses a thumb device of little-driving self-adaptive artificial hand, which is characterized by the following: connecting one end of thumb finger-tip pin case (32) with the thumb finger-tip connecting rod pin shaft (37); fixing the thumb wheeled bearing (55) on the wave generator axle (54) under the thumb decelerator wheel (10); connecting the thumb decelerator wheel (10) with the wheeled pad (9) through the wheeled fixation pin (57); fixing the wave generator (52) of harmonic gear decelerator on the other end of the wave generator axle (54) of wheeled pad (9). The invention can display a 130 deg conical moving space in the moving course to realize the finger-pin little-driving movement, which is adaptive for the object shape to reach full-covering the object and stable grasping.

Systems for segmenting human hairs and faces in color images are disclosed, with methods and processes for making and using the same. The image may be cropped around the face area and roughly centered. Optionally, the illumination environment of the input image may be determined. If the image is taken under dark environment or the contrast between the face and hair regions and background is low, an extra image enhancement may be applied. Sub-processes for identifying the pose angle and chin contours may be performed. A preliminary mask for the face by using multiple cues, such as skin color, pose angle, face shape and contour information can be represented. An initial hair mask by using the abovementioned multiple cues plus texture and hair shape information may be created. The preliminary face and hair masks are globally refined using multiple techniques.

The invention relates to a method for designing a lens, in particular to a method for designing an ophthalmic progressive additional lens by utilizing meridian. The method mainly comprises the following steps of: a) designing a meridian diopter variation curve of the ophthalmic progressive additional lens; and b) determining the surface shape of the ophthalmic progressive additional lens accordingto the meridian diopter variation curve. According to the visual demands of a wearer, the diopter distribution of the ophthalmic progressive additional lens is designed along the meridian, therefore,the method can be used for the design of multifunctional ophthalmic progressive additional lens; in addition, according to the meridian diopter variation curve, the method can determine the surface shape, the diopter and astigmation distribution of the ophthalmic progressive additional lens to better satisfy the needs of wearers.

The present invention discloses a face image processing process and apparatus. The scheme of the invention will project the face region of the image in the beforehand disciplinary pivot space, and reconstructs according to the projection result. As the beforehand disciplinary pivot space only reserves the low frequency partial component of the face image and removes the high-frequency part, thereby the reconstructed face image only contains low-frequency components in the image and removes the high-frequency components. In the face images, the low frequency part usually includes brightness, skin color, gesture, face shape, face expression and the like information, while the high-frequency part usually includes flecks, wrinkles, thickness veins and other details. As a result, by the projection and reconstruction of facial image in the pivot space, the skin color and veins of the face images become uniform, wrinkles decrease, spots disappear, and so on, so as to achieve the goal of the human face image improvement and face beautification. Since the scheme of the invention only process the part of the face image, which will not affect the whole image.

A interference measuring method of inspherical face form realized by using partial compensating lens belongs to electrooptical technical field, having no requirement that large aberration wave front of inspherical face form has to be compensated completely by compensating lens, but allowing residual wave difference not larger than fifty wavelengthes exists, changing traditional small wave difference interference measuring system into large wave difference by using digit Mohr phase shift phase shift method. The invention has the structure of compensating lens simplified. The difficulty of design, processing of which decreased and the measuring range of which extended; by using refraction principle, interference fringe is very clean because of no perturbance from other light created by holographic element, and which has little lose; the measuring accuracy is high and stability is good; it can be used to measure varies of rotational symmetric aspheric surface especially for aspheric surface with large relative aperture and convex inaspheric surface with large inaspheric ratio.