400 results about "Self-stabilization" patented technology

A microprobe array structure with self-stabilization capability and a method for manufacturing the same are proposed. The microprobe array structure is used to sense various biopotential signals, and is characterized in that the etching parameters are controlled during etching to manufacture a microprobe structure with a reduced bottom cross section so that the microprobe can be firmly stabilized in the skin tissue. Moreover, a conducting layer is formed on the microprobe to sense signals. A design of electric isolation between microprobes is also proposed. The microprobe array can therefore be used for the measurement of various biopotential signals, and can also be used as a stimulus.

A method of improving image quality of a digital image is provided. In particular, the motion blur in an image taken in a long exposure time is reduced by dividing the exposure time into several shorter periods and capturing a series of images in those shorter periods. Among the images, one reference image is selected and the remaining images are registered in reference to the reference image by image warping, for example. After identifying the pixels in each of the remaining images and the corresponding pixels in the reference image, a weighting factor is assigned to each of the pixels in the remaining images based on the similarity in the pixel values between the remaining images and reference image. A weight average operation is carried out to sum the corresponding pixels in the reference and the remaining images to generate the final image.

Techniques described herein provide a method for improved image and video stabilization using inertial sensors. Gyroscopes, accelerometers and magnetometers are examples of such inertial sensors. The movement of the camera causes shifts in the image captured. Image processing techniques may be used to track the shift in the image on a frame-by-frame basis. The movement of the camera may be tracked using inertial sensors. By calculating the degree of similarity between the image shift as predicted by image processing techniques with shift of the device estimated using one or more inertial sensor, the device may estimate the portions of the image that are stationary and those that are moving. Stationary portions of the image may be used to transform and align the images. For video stabilization, the realigned images may be combined to generate the video. For image stabilization, the realigned images may be either added or averaged to generate the de-blurred image.

A method and system for transient and switching stabilization of a fiber optic transport system. One or more data-bearing channels are coupled to an optical fiber. The data-bearing channels are distributed among a plurality of frequency sub-bands. A set of control channels is also coupled to the optical fiber. Each control channel includes a pair of signals at separate frequencies. There is at least one control channel in each of the plurality of frequency sub-bands. The pair of signals of a control channel are cross-polarized. Optical power in at least one of the plurality of sub-bands is measured. Responsive to the measured optical power, the optical power of a control channel is adjusted to maintain a substantially constant power of a sub-band that contains the adjusted control channel.

The invention discloses a preparation method of functional hollow polymer microspheres. The shell of the functional hollow polymer microspheres is prepared by carrying out precipitation polymerization on a functional monomer and a crosslinking agent in different ratios; and the formed crosslinked shell has a mesoporous structure. The preparation method comprises the following steps: preparing a monodisperse polymer microsphere template by self-stabilization precipitation polymerization; directly adding the reaction system into the shell without separation to form the required functional monomer and crosslinking agent, and preparing core-shell polymer microspheres of which the shell has a crosslinked mesoporous structure by precipitation polymerization; and finally, removing the polymer microsphere core by solvent dissolution to obtain the functional hollow polymer microspheres. The technique is simple, and safe and convenient to operate, has the advantages of mild reaction conditions, no need of special equipment, high preparation efficiency, easy microsphere separation, controllable size, and very high functional group content in the polymer microspheres, and lays a foundation for large-scale industrial production of the functional hollow polymer microspheres.

Real-time image stabilization using computationally efficient corner detection and correspondence is provided. The real-time image stabilization performs a scene learning process on a first frame of an input video to obtain reference features and a detection threshold value. The presence of jitter is determined in a current frame of the input video by comparing features of the current frame against the reference features using the detection threshold value. If the current frame is found to be unstable, corner points are obtained from the current frame. The obtained corner points are matched against reference corner points of the reference features. If the number of matched corner points is not less than a match point threshold value, the current frame is modeled using random sample consensus. The current frame is corrected to compensate for the jitter based on the results of the modeling.

An apparatus that is capable of achieving self-stabilization while walking comprises two front legs and two rear legs with each leg having three joints including a hip joint, an upper leg joint, and a lower leg joint. Each joint is powered by a motor and is monitored by an encoder, totaling twelve of each for the entire apparatus. Stability is maintained by adding weight to the two front legs and by positioning a separate weight toward the front and middle of the apparatus, thereby moving the center of balance of the apparatus further within the stability envelope of the apparatus. As a result, the apparatus maintains its stability by itself without the need for additional CPU's. The apparatus also includes an animation motor that is capable of causing the apparatus to make non-ambulatory movement and a cartridge slot which allows the user to download new programming which facilitates new behavior being exhibited by the apparatus.

The invention discloses a holder control method. The method comprises the steps that a current posture and a target posture of a controlled end, a current posture of a fixed end and rotation inertia ratio of the fixed end to the controlled end on a holder are acquired; according to the current posture and the target posture of the controlled end, the current posture of the fixed end and the rotation inertia ratio of the fixed end to the controlled end, effective mechanical energy controlling the controlled end is calculated and acquired; and according to the effective mechanical energy, the controlled end is controlled to maintain a stable state. The invention further discloses a holder control device. According to the invention, the controlled end reaches the target posture and maintains the stable state; the holder is precisely controlled; body disturbance is effectively isolated; self-stabilization control of the holder is realized; and the imaging quality of a holder load camera is ensured.

An aerial balloon system comprising a payload platform suspended from an inflated balloon by means of a balloon cable, and an anchoring cable attaching the platform to an anchor point beneath it. The balloon cable and anchoring cable are attached to the payload platform by means of a connecting element pivotally attached to the platform. The platform may include a servo controlled pitch stabilizing system using the input from a pitch sensor mounted on the platform to control an angular actuator to change the angle which the platform makes with the pivoted connection element. Additionally, the platform may include a servo controlled orientation stabilizing system using the input from an orientation sensor mounted thereon to control the departure of the orientation of the platform from a predetermined orientation. This may be readily accomplished using a variable pitch rotor, the pitch being controlled by the orientation sensor signal.

The invention discloses a supporting method for soft broken nonuniform stratum tunnel construction. The supporting method includes the steps that firstly, an arch support is erected in a bottom layer tunnel through steel pipes, and the portion, on the top of the arch support, of the bottom layer tunnel is drilled; secondly, a small pipe roof is constructed on the drilled portion of the arch crown of the arch support; thirdly, during construction of the small pipe roof for supporting, advanced reinforcement treatment is conducted on a top arch of the tunnel through advanced small pipes in a floor staggered mode; fourthly, the tunnel is excavated; fifthly, after the tunnel is excavated, preliminary supporting construction is conducted in time each cycle; sixthly, after excavation and supporting of a tunnel trunk of the tunnel, an inverted arch is constructed and sealed into a loop; and then secondary lining following operation is conducted. The method has the advantages that deformation of tunnel surrounding rocks can be effectively reduced, self-stabilization and seepage prevention capacity of the tunnel is permanently improved, a multifunctional surrounding rock reinforcement region is formed, and safety of tunnel constructors and equipment is guaranteed.

Images with an overall field of view (FOV) may be captured during an endoscopic procedure but only a portion of the overall FOV displayed to an endoscopist. The overall FOV may be analyzed to identify an area of interest of a patient's organ based on the presence of a possible lesion during the endoscopic procedure. The endoscopist may be notified of the identified area of interest. After an area of interest is identified, the location of the area of interest may be tracked. Image stabilization may be provided by changing the displayed portion of the overall FOV to maintain the area of interest within the displayed portion as the area of interest moves relative to the endoscope.

A video stabilization system processes a video segment to remove unwanted motion, resulting in a stabilized video segment. The video stabilization system tracks one or more features through multiple frames, identifies ideal positions for the features, and then generates information (e.g., rotation, scaling, shearing, and/or translation) to transform all pixels in each frame to ideal positions based on the ideal positions of the features.

The invention discloses a gravity self-stabilization picking machine. The gravity self-stabilization picking machine comprises a three-claw mechanical arm, a supporting rod and a movable cart, whereinthe three-claw mechanical arm comprises a gravity self-stabilization base and a three-claw clamping apparatus, and the gravity self-stabilization base comprises a U-shaped foundation support, an adjusting rod and a balance weight; and the three-claw clamping apparatus comprises a three-claw clamping mechanism and a rotating motor, the rotating motor is fixed at the outer side of the U-shaped foundation support, the three-claw clamping mechanism comprises a stander, a three-claw manipulator, a transmission assembly and a drive device, the drive device is fixed on the stander, and the stander is connected with an output shaft of the rotating motor in a rotating manner. The gravity self-stabilization picking machine is provided with the gravity self-stabilization base, when a picking objectis not picked, the gravity center of the three-claw mechanical arm is slightly lower than the middle part; after the picking object is picked, the picking object is separated from a fruit tree, the gravity center of the three-claw mechanical arm is slightly higher than the middle part to cause the overturning of the three-claw mechanical arm, and the picking object can vertically fall into a receiving bag; and after the picking object drops, the three-claw mechanical arm overturns again and is returned to an original state to prepare the next operation.

The invention discloses a balloon-carried type water flow imaging and speed measurement system facing torrential flood emergency monitoring, and belongs to the technical field of non-contact open channel flow measurement. The system comprises an aerial photography balloon, a servo self-stabilization photoelectric platform, a mooring cable and a ground measurement and control part, wherein the aerial photography balloon consists of a balloon body, a connection net, a connection ring and a hoisting platform; a carrying photoelectric platform is suspended in low altitude; the servo self-stabilization photoelectric platform consists of a six-wave-band spectral imager, a light emitting diode (LED) light compensation lamp, a triaxial holder and a 12V direct current (12VDC) converter and is used for continuously and stably imaging a water surface at a similarly perpendicular visual angle; the mooring cable consists of a mooring rope, a power line and an Ethernet line and is used for fixing the aerial photography balloon and transmitting image data output by the spectral imager; and the ground measurement and control unit consists of a 48V self-power-supply device, a 19VDC converter, a PoE combiner and a mobile working station and is used for supplying power to the system and processing monitored data. The balloon-carried type water flow imaging and speed measurement system can finish site arrangement safely and quickly with low cost, and sudden torrential flood emergency monitoring can be realized.