136results about How to "Simple features" patented technology

A system and method for real-time multi-view (i.e. not just frontal view) face detection. The system and method uses a sequence of detectors of increasing complexity and face / non-face discriminating thresholds to quickly discard non-faces at the earliest stage possible, thus saving much computation compared to prior art systems. The detector-pyramid architecture for multi-view face detection uses a coarse-to-fine and simple-to-complex scheme. This architecture solves the problem of lengthy processing that precludes real-time face detection effectively and efficiently by discarding most of non-face sub-windows using the simplest possible features at the earliest possible stage. This leads to the first real-time multi-view face detection system which has the accuracy almost as good as the state-of-the-art system yet 270 times faster, allowing real-time performance.

The invention disclosed a multi-axial expandable pedicle screw and an expansion method by using the same. Structure of the screw comprising a hollow screw being spherical shaped end connecting with an adapting piece, which is universal joint structure; an inner wall of the adapting piece connecting a lock bolt through screw threads; the hollow screw with sharp shaped on another end having a bore inside formed hollow structure in its entirety; the bore having taper shaped tip; expansion gaps uniformly setting up two, or three or four or more anterior fins on the hollow screw along its axial direction upward, prolonging from its tip to the bore; the inner needle is disposed in the bore. The invention can reduce the pedicle screw loose and even occurrence ratio of pull-out and increase the stability and reliability and reduce the failure rate of spinal surgeries at the same time. It is also easy to operate, and degree of expansion is of controllable level.

The method for identity verification employs biometric technology. Positioned at the center of the system is a stylus with any of a number of biometric properties or their combination or with one or more metric sensors, while the customer uses the stylus to sign his / her name, or even for writing anything. The identity verification system is used at point-of-sale terminals, in various closed environments, to access a computer network, in applications involving pen-based computers and smart-pens, and for e-commerce. When fingerprint sensors are used, the sensors are positioned in the stylus grip, one sensor for the index finger, and a second sensor for the thumb. In one variation, one-to-one biometric matching is used. Each participant carries on his / her person a device that includes an encrypted biometric for reference purposes to gain access Into the system. Processing is simplified since the system need only make a “MATCH” or “NO MATCH” decision. In a second variation that is particularly useful in closed environments, one-to-many biometric matching is used. During each event access request, the community of reference prints is searched for a match with the applicant. Each member of the community need carry nothing on his / her person to participate in the system. In either variation, the stylus is either attached to each site or is portable, one such stylus being carried by each participant.

An input device with three-dimensional, six-degrees-of-freedom data input for a computer having a tracker with an array of tracking points defining a first axis and a second axis or plane is described. Light reflected from, or given off from the tracking points, is captured by a camera. From the two-dimensional images captured, three-dimensional data relating to the position and orientation of the input device may be obtained from the relative positions of the tracking points by a provided algorithm and lookup table. The use of one of the tracking points as an on-off indicator of the tracker's orientation towards or away from the camera greatly expands the use of such technology from limited hemispherical tracking to all-round, full-spherical tracking. In the preferred embodiment of the invention, tracking points on the input device which is in the form of a planar “T”-shape wand with a cross piece and a camera allow computer users to input natural swinging movements into a virtual environment for gaming or other three-dimensional applications.

An orthopedic implant comprising a substrate material adapted to provide the orthopedic implant. The implant has a primary friction area located on or integral with the substrate material. The primary friction area defining an engagement surface having a primary frictional feature. A secondary friction area is located on or integral with the engagement surface and defining a second frictional feature. The primary friction area and the secondary friction area defining a friction interface zone between the orthopedic implant and at least one bone. The secondary friction area increases a friction of the engagement surface and modulus of elasticity to enhance the frictional engagement between the engagement surface and the at least one bone.

An input device with three-dimensional, six-degrees-of-freedom data input for a computer having a tracker with an array of tracking points defining a first axis and a second axis or plane is described. Light reflected from, or given off from the tracking points, is captured by a camera. From the two-dimensional images captured, three-dimensional data relating to the position and orientation of the input device may be obtained from the relative positions of the tracking points by a provided algorithm and lookup table. The use of one of the tracking points as an on-off indicator of the tracker's orientation towards or away from the camera greatly expands the use of such technology from limited hemispherical tracking to all-round, full-spherical tracking. In the preferred embodiment of the invention, tracking points on the input device which is in the form of a planar “T”-shape wand with a cross piece and a camera allow computer users to input natural swinging movements into a virtual environment for gaming or other three-dimensional applications.

A system and method for detecting speech utilizing audio and video inputs. In one aspect, the invention collects audio data generated from a microphone device. In another aspect, the invention collects video data and processes the data to determine a mouth location for a given speaker. The audio and video are inputted into a time-delay neural network that processes the data to determine which target is speaking. The neural network processing is based upon a correlation to detected mouth movement from the video data and audio sounds detected by the microphone.

An orthopedic implant comprising a substrate material adapted to provide the orthopedic implant. The implant has a primary friction area located on or integral with the substrate material. The primary friction area defining an engagement surface having a primary frictional feature. A secondary friction area is located on or integral with the engagement surface and defining a second frictional feature. The primary friction area and the secondary friction area defining a friction interface zone between the orthopedic implant and at least one bone. The secondary friction area increases a friction of the engagement surface and modulus of elasticity to enhance the frictional engagement between the engagement surface and the at least one bone.

A mechanical independent blade control (MIBC) mechanism for controlling the pitch of each of the blades of a rotor blade system or a main rotor of a rotor aircraft independently of the other blades includes a plurality of actuators disposed in the fuselage below the hub of the rotor, each being operable to selectively control the pitch of an associated one of the blades independently of the other blades, and a plurality of mechanical linkages disposed within the annulus of the rotor mast, each coupled between a blade and an actuator and operable to transmit a force output by the actuator to a pitch horn fixed to an inner end of the associated blade. The mechanism enables the direction of pitch of each blade to be changed more than twice during one revolution of the rotor.

The method for identity verification employs biometric technology. Positioned at the center of the system is a stylus with any of a number of biometric properties or their combination or with one or more metric sensors, while the customer uses the stylus to sign his / her name, or even for writing anything. The identity verification system is used at point-of-sale terminals, in various closed environments, to access a computer network, in applications involving pen-based computers and smart-pens, and for e-commerce. When fingerprint sensors are used, the sensors are positioned in the stylus grip, one sensor for the index finger, and a second sensor for the thumb. In one variation, one-to-one biometric matching is used. Each participant carries on his / her person a device that includes an encrypted biometric for reference purposes to gain access Into the system. Processing is simplified since the system need only make a “MATCH” or “NO MATCH” decision. In a second variation that is particularly useful in closed environments, one-to-many biometric matching is used. During each event access request, the community of reference prints is searched for a match with the applicant. Each member of the community need carry nothing on his / her person to participate in the system. In either variation, the stylus is either attached to each site or is portable, one such stylus being carried by each participant.

The invention provides a method for extracting content of a web page, which comprises the following steps: 1) performing a paragraph merger operation on all characterization nodes in a DOM tree constructed by the web page; 2) optionally selecting a node from a node set bearing the longest paragraph, backtracking from the selected node to a root node of the DOM tree, calculating the difference of punctuation amounts of contexts, which are born between a father node of each node and a subtree thereof and between the node and a subtree thereof, and forming an increment sequence in turn; 3) searching the increment of a first 0 value or a first increment smaller than a former adjacent increment and smaller than or equal to a latter adjacent increment in the increment sequence; 4) if the increment is found, determining that the context born by the corresponding node of the increment and the subtree thereof is the content of the web page; 5), if the increment is not found, determining that the context born by the root node of the increment and the subtree thereof is the content of the web page. The method for extracting the content of the web page has the advantages of high extraction precision, high implement speed, low maintenance cost and excellent adaptability.

The present invention is directed to a system and method for a unified composition engine that, in general, combines previously separate composition services. The unified composition engine provides a composition service used both in-process in conjunction with application programming interfaces (API's) and on the desktop as the desktop compositor.

A system and method are provided for selectively dosing and dispensing a predetermined liquid material in and from a pre-dispensing measuring sight glass container vessel, wherein a housing is disposed to receive a pressurized fluid stream, to provide an intermediate measurement and storage vessel for the liquid material and to provide a selectively operable valve assembly that is disposed in a flow path defined in the housing. The housing includes an inlet, an outlet, and an intermediate portion extending therebetween, which is formed with an admission port for admitting the predetermined liquid material. The valve assembly is disposed between the housing's inlet and outlet, and may be selectively operated to fill the sight glass container from the source container; or, to dispense the liquid material from the sight glass container; or, to clean the sight glass container; or, to just provide a flow of the pressurized fluid without any liquid material. At no selection or operating condition can liquid material from the source container be dispensed without first being measured into the sight glass container.

The present invention is directed to a system and method for a unified composition engine that, in general, combines previously separate composition services. The unified composition engine provides a composition service used both in-process in conjunction with application programming interfaces (API's) and on the desktop as the desktop compositor.

The invention belongs to the technical field of computer video treatment and particularly discloses a video classification method. The time and color feature fusion-based classification method is provided by taking cartoons, commercial advertisements, films, news and athletic contests as classification objects, determining to select a color with the best classification effect from bottom-layer features (such as color, texture and shape) of a video as a classification feature on the basis of summarizing and analyzing conventional classification algorithms, and performing comparison, analysis and summarization on various classification algorithms based on the color feature. As each feature has a preference for a certain type of video classification effect and the preference is referred to as an expert feature of the video of the type, an expert system is further used for making the features cooperate to improve the classification accuracy and the efficiency at the same time.

A first radio station (100) monitors, either continuously or intermittently, a channel for an indication of a transmitted data packet and measures the quality of the channel. The first radio station (100) transmits indications of the measured quality and when the measured quality falls below a quality threshold, it reduces the proportion of time spent monitoring the channel by introducing or increasing time periods when no monitoring takes place, and subsequently increases the time spent monitoring when the quality recovers. A second radio station (200) transmits data packets to the first radio station (100) and receives the indications of measured channel quality. When the measured quality falls below the quality threshold, the second station reduces the proportion of time spent transmitting the data packets to the first radio station (100) by introducing or increasing time periods between transmitted the data packets.

The invention relates to a citizen interaction system in city planning, which comprises a planning geographic information management platform, a planning geographic information collecting and updating platform, a planning summarized information database, an information processor, a network transmission unit and an interaction display terminal which are arranged in a server, wherein the planning summarized information database is managed by the planning geographic information management platform and the planning geographic information collecting and updating platform; and the planning summarized information database is connected with the network transmission unit and the interaction display terminal. City planning and design results, planning examination and approval business, tri-dimensional virtual city, city satellite remote sensing information and related multimedia information are integrated into a whole body to build the citizen interaction system in city planning, viewing of the related information of city planning becomes convenient for citizens the real-time inquiry of project status of planning examination and approval can be realized, an electronic original map browsing platform of city design and planning and applying for building is provided, and government information publicity, city planning propaganda, sunlight planning service and planning knowledge popularization are integrally integrated.

The invention discloses a mountain fire detection method based on intelligent image analysis. The method includes a training stage and a testing stage. An SLIC method is used for obtaining superpixels of an image. Through the method, pixels of the image can be fast clustered, fitting can be well performed on the edge of a target, after superpixel blocks are obtained, color and texture characteristics of the superpixel blocks are put forward, and mountain fire classification can be performed on the image according to the characteristics. Through a fire disaster detection method based on textures and colors, the position of a mountain fire can be fast and effectively detected, and a precise classification result can be obtained. The superpixels generated through SLLC can be well matched with the edge of the target, and the segmentation effect is ideal. The characteristics used for describing a superpixel area are simple, effective and low in complexity and can meet the instantaneity requirement of mountain fire detection.

The invention provides a method for extracting tobacco volatile and semi-volatile aroma components. The method comprises the following steps: removing a filter tip and cigarette paper from a cigarette to obtain a tobacco shred sample, and filling into a sample bottle to carry out heating balance; after balancing, continuously heating the sample bottle, and blowing the tobacco shred sample in the sample bottle with air prepared by an air pump; using a capture pipe to capture air obtained by blowing, and connecting the capture pipe, the sample bottle and the air pump into a closed loop; after finishing capture, taking off the capture pipe, adding an organic solvent, and eluting into a collecting bottle in several times to obtain the tobacco volatile and semi-volatile aroma components. The invention further provides a device for extracting tobacco volatile and semi-volatile aroma components. According to the method for extracting tobacco volatile and semi-volatile aroma components, provided by the invention, the volatile and semi-volatile aroma components are extracted from prepared cigarette tobacco shreds through adopting closed-loop gas. The method for extracting the volatile and semi-volatile aroma components from tobaccos is simple, feasible and efficient.

The invention relates to an image visual characteristic extraction method based on sparse coding and belongs to the technical field of digital image processing of computers. The method comprises the following steps of: extracting low-level characteristics of a picture set; removing labels with extremely low frequency, and generating a label vector; generating a matrix W similar to the low-level characteristic to serve as a basis of manifold constraint, and essentially combining low-level visual characteristics and high-level textual characteristics; establishing a target function; and minimizing the target function, so as to obtain an optimal matrix consisting of sparse coding of the low-level characteristics of the picture set. According to the method, by the adoption of the sparse coding, hidden type information of the low-level visual characteristics and the high-level textual characteristics of an image is well mined, and a model has high robustness; according to the method, a maximization pool method is adopted, and a unique image visual characteristic vector of each picture is obtained; and moreover, the visual characteristics of a final image are simple and effective.

The invention provides a video-based non-supervision abnormal event real-time detection method. Specific to the aims of reducing the quantity of inter-frame feature points and lowering the complexity in calculation of the feature points at the same time, the feature points are detected with an interval method, namely, a video is segmented, the feature points are detected on a first frame, and only tracking is required subsequently. The calculation amount of a tracking method is small relatively, so that the calculation complexity is lowered greatly. At the end of one segment of video, the feature points are detected once again. After the feature points of each video segment are obtained, direction, speed and location histograms of motion feature points are extracted and connected in series to serve as features of the video segments. Then, the features are subjected to Gaussian mixture modeling and updated in real time to obtain the probability of abnormal events in order to judge whether any abnormal event occurs or not. Thus, the abnormal events can be detected in real time.

In a method of operating an internal combustion engine with a switch-over capability between a compression ignition mode of operation and a spark ignition mode of operation in higher load ranges which includes a cam-operated valve drive with a valve control providing, in the compression ignition mode of operation, for an increased valve overlap of the valve opening times, smooth engine operation and optimal exhaust gas emissions are obtained also during rapid load changes upon changing the engine operating mode as the change-over is accompanied by changes of the injection parameters, the throttling parameter and the valve control, which are coordinated with respect to one another as the valve control is switched over by changing the amplitude and phase position of the valve stroke of at least one of the inlet and outlet valves.

A system and method of exchanging project data between disparate levels of users, independent of whether the user is a client or professional, or which operating system level or software is employed.

The present invention discloses a blind image quality evaluation method based on combining a gradient signal and a Laplacian of Gaussian (LOG) signal. The method comprises: firstly extracting a gradient modulus signal and a LOG signal of an image; and normalizing the two signals by using a joint adaptive normalization process. Based on the two characteristic representations, three blind image quality evaluation methods which can predict image quality degradation are proposed. In each of the three methods, model training is performed on a public image subjective quality evaluation database by using a method that supports vector machine regression. A large number of experimental results prove that the three algorithms proposed by the invention all have good predict performance on the blind image quality evaluation. Compared with other existing algorithms, the model 3 method has the best quality evaluation performance and optimal database stability. Furthermore, the three algorithms are high in operation efficiency.

The invention discloses a traffic light positioning method. The method comprises: expanding an object region where traffic lights are in in advance, obtaining a constraint region, and performing binaryzation on a grayscale image of the constraint region, extracting proportion of bright regions, the number of small area bright regions, the number of standard light area bright regions, the number of large area bright regions, and the average gray value of dark regions from binarization images, according to the features, determining day or night of an intersection image where the object region is in, if the image is a night image, detecting signal lights whose states are lightened through the binarization image, and according to the positions of the signal lights, adjusting positions of the traffic light; if the image is a day image, detecting a black frame in a traffic light structure through the binaryzation image, and according to the position of the black frame, adjusting the positions of the traffic light. The method is advantaged by low calculation complexity, fast operation speed, good environment adaptability, and simple realization.

The invention relates to a damping mechanism for folding seats in chairs, having an application in seats (1) incorporated in an articulated assembly by means of shafts (2), with springs (4) which act in the sense that they tilt the seat towards a vertical folded position, incorporating in each shaft (2) an eccentric cam (5) on which there is supported a damping piston which exerts retention action for smoothing the upward rotation of the seat by the action of the springs (4).

The invention relates to a method for automatically detecting a deflection fault of a railway wagon locking plate and belongs to the field of railway detection. A fault-free target automatic identification mode is adopted; the method is on the basis of an approximate linear segment outline of an object and adopts linear segment characteristics to describe; the requirement on a memory is effectively reduced; the direction of a linear segment is subjected to directional encoding on the basis of the linear segment characteristics and an interval of the directional encoding is the maximum normal deflection angle of the locking plate; and finally, estimation on a deflection range is implemented by utilizing directed Chamfer matching. The method uses the simple characteristics, is not influenced by the position of a target and variation of surface texture and has strong robustness and noise immunity; in a complex scene, the range of the deflection angle can be accurately estimated and the position of the fault-free locking plate can be accurately positioned; in the whole process, only one template is required; identification efficiency is ensured; and the method lays a foundation for engineering application of fault image identification of a railway wagon.

In a tooth implant comprising a primary crown for mounting on a base carrier implanted into a patient's jaw and a secondary crown mounted onto the primary crown for supporting a bridge or prosthesis, the primary crown has a circular or ball-shaped projection and the secondary crown has a recess of a complementary configuration receiving the projection of the primary crown so that the secondary crown is pivotally supported by the primary crown for permitting adjustments during installation of the prosthesis or bridge onto the secondary crown.