18 results about "Stereotaxy" patented technology

The invention provides a measurement control point-free island stereo image pair extraction high-precision DSM method, which comprises the following steps of: firstly, carrying out semi-global dense matching by adopting a semi-global dense matching algorithm to obtain a disparity map; secondly, performing coordinate three-dimensional positioning of the rational function model, and processing longitude, latitude and height coordinates to obtain a three-dimensional point cloud without deformation; and finally, realizing point cloud reconstruction DSM, and generating a DSM three-dimensional model. Experimental results show that the method for reconstructing the DSM by the high-resolution satellite stereo image pair is well applied to World-View3 satellite images, and the DSM three-dimensional model of the island reef can be constructed.

The present invention discloses an inverse solution RFM solving method without RSM parameters, belonging to the technical field of remote sensing image processing. The present invention is a model transfer of the forward solution RFM and another high-precision fitting of the RSM. Using the present invention can achieve the inverse solution RFM solving without RSM parameters. Existing experiments show that the inverse solution RFM obtained by the present invention is basically equivalent in accuracy to the inverse solution RFM obtained based on RSM parameters and can be regarded as the same model. Moreover, it has a higher stereo positioning efficiency compared with the forward solution RFM and has application prospects in large-scale image engineering processing.

The invention relates to the field of neuroscience experiments and biomedical engineering, and discloses a brain stereotactic method and system based on a turtle skull zero point, and the method comprises the following steps: taking a repeatedly recognizable bony mark point of a turtle skull as a zero point; a plane parallel to the reference plane of the brain stereotaxic instrument is established as an XY plane, and an axis parallel to the zero point probe is taken as a Z axis. Further, the invention provides a coordinate conversion method for converting target point coordinates in a three-dimensional image into a coordinate system of a stereotaxic instrument, which comprises the following steps of: positioning a zero point and a reference point in the image, determining a Z-axis direction, constructing an orthogonal coordinate base, and calculating rigid body transformation from an image coordinate system to a stereotaxic coordinate system; therefore, the three-dimensional displacement, the needle inserting depth and the track parameters for the movement of the positioning arm are output. The device can be used in cooperation with an existing brain stereotaxic instrument suitable for turtles, high-repeatability positioning of turtle brain region electrode implantation / injection is achieved, and the consistency and efficiency of cross-individual and cross-batch experiments are improved.

This invention relates to the field of ear rod technology, providing an endoscopic visualization stereotactic brain positioning ear rod, comprising a base plate, an ear rod shell, and an electronic display. The ear rod shell is located on one side of the top of the base plate, and a battery cavity is formed in the side wall of the ear rod shell, containing a button battery. A battery cover is located at the end of the battery cavity. A camera is located at the front end of the ear rod shell, and a magnetic charging connector is located at the rear end. This invention transmits real-time images of the ear canal to the electronic display screen through a camera integrated at the tip of the ear rod and a wireless signal transmitter. The experimenter can clearly observe the internal structure of the ear canal through the display screen, achieving precise positioning. The device has an animal category selection function and can generate virtual positioning auxiliary lines to help the experimenter quickly find the center point of the ear canal. Its wireless connection method is convenient to operate and can replace traditional ear rods in stereotactic brain positioning operations.

The invention discloses a data processing method, a data structure and a processing system for a brain stereotactic map, and the processing method comprises the steps: S1, generating a multi-level tree structure Nom for each brain region, obtaining a brain stereotactic map annotation image L, and creating a mapping table T; s2, acquiring a labeled image formed by a corresponding gray value of each brain region located at a leaf node in the Nom in the brain stereotactic map labeled image L, and combining all the labeled images located at the brain regions of the leaf node in the same hierarchy in the Nom to generate a plurality of hierarchy labeled images, further forming a brain map annotation image set Lext comprising all hierarchical annotation images; s3, dividing all the hierarchical annotation images into a plurality of three-dimensional image blocks C, and generating a set LCext for 3D image files of all the three-dimensional image blocks C; and S4, compressing the set LCext. The scheme has the advantages of completeness, reusability and light weight of brain stereotactic map labeling information.

The utility model discloses an adjustable small animal brain three-dimensional positioning auxiliary device which comprises three plate bodies and a bubble level, the three plate bodies are connected with an upper supporting rod through holes, and an upper layer track and a lower layer track are arranged on the first plate body; vertical lower supporting rods are arranged at the two ends of the second plate body and the third plate body, and positioning knobs are arranged at the bottoms of the lower supporting rods. Through the arrangement of the auxiliary device, the cranial crest of the small animal can be rapidly arranged and balanced, the experimental target site can be accurately positioned, and the experimental accuracy can be improved; different samples of the same model are processed through the same method, and measurement errors between individuals can be reduced.

Stereotactic device for cutting hard tissue on the skull bone, with - a stereotactic frame (22) designed to be attached to the head of a patient, and - a stereotactic arc (25) attached to the stereotactic frame (22) via at least one pivot joint, which, when the stereotactic frame (22) is attached to the head of a patient, can be tilted over the head by means of the pivot joint, characterized by that a laser applicator (17) is attached to the stereotactic arc (25) and can be moved along the stereotactic arc (25) via a motor drive (28''), and the stereotactic arc (25) can be tilted on the stereotactic frame (22) via a further motor drive (28, 28'), wherein the laser applicator (17) has a dynamic 2D beam deflection device (11) by which a processing laser beam (2) coupled into the laser applicator (17) can be guided over an area of ​​the hard tissue to be cut, and a focusing optic (12) with a focus position for the coupled processing laser beam (2) adjustable by means of the focusing optic (12) or other optical elements, and wherein a measuring device (6) is arranged in or connected to the laser applicator (17) with which a cutting depth of a kerf produced with the processing laser beam (2) and a residual thickness of the skull bone (15) in the kerf can be measured.

The application provides a high-precision DSM method for stereo image pair extraction of a no-control-point island reef, and first, a semi-global dense matching algorithm is used for semi-global dense matching to obtain a parallax map; second, a rational function model coordinate stereo positioning is performed to process longitude, latitude and height coordinates to obtain three-dimensional point clouds without deformation; finally, point cloud reconstruction DSM is realized to generate a DSM three-dimensional model. Experimental results show that the high-resolution satellite stereo image pair reconstruction DSM method is preferably applied to World-View3 satellite images and can generate a far-sea island reef DSM three-dimensional model.

1. The name of this design product: Frameless Stereotactic Surgical Robot. 2. Purpose of the product with this design: precise stereotactic positioning navigation surgical auxiliary equipment for minimally invasive cranial surgery. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

1. The name of this design product: Frameless Stereotactic Surgical Robot. 2. Purpose of the product with this design: precise stereotactic positioning navigation surgical auxiliary equipment for minimally invasive cranial surgery. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The invention discloses a brain stereotaxic instrument capable of being automatically adjusted, and relates to the field of automatic control, the brain stereotaxic instrument comprises a brain positioning assembly, the lower end of an adjusting frame is arranged on a base, an X-direction adjusting assembly is arranged at the upper end of the adjusting frame, a Y-direction adjusting assembly is arranged on the X-direction adjusting assembly, and a double-corner adjusting assembly is arranged on the Y-direction adjusting assembly; the X-direction adjusting assembly is arranged on the double-corner adjusting assembly, the Y-direction adjusting assembly is arranged on the base, the Z-direction adjusting assembly is arranged on the double-corner adjusting assembly, the tool clamping assembly is arranged on the Z-direction adjusting assembly, the brain positioning assembly is arranged on the base, and the X-direction adjusting assembly, the Y-direction adjusting assembly and the Z-direction adjusting assembly are all electrically connected with the control center. The tool clamping assembly sequentially passes through the Z-direction adjusting assembly, the double-rotation-angle adjusting assembly, the Y-direction adjusting assembly and the X-direction adjusting assembly and then is arranged on the adjusting frame, the adjusting frame is fixed to the base very stably, accurate positioning can be achieved, and meanwhile the Z-direction adjusting assembly, the Y-direction adjusting assembly and the X-direction adjusting assembly are controlled through the control center so that automatic adjustment can be achieved.

This application discloses a stereoscopic positioning image positioning frame, including a CT positioning device and a fixation base. The CT positioning device includes a top fixing frame made of high-strength plastic. CT imaging panels are fixed to the front, left, and right sides of the top fixing frame, each containing an N-shaped marker pattern that is visible under CT images. The fixation base includes a front irregular crossbeam, a rear crossbeam, a left longitudinal beam, and a right longitudinal beam. Each fixing rod has a mounting part at its top for fixing to the user's skull. The CT positioning device and the fixation base are connected by a detachable connection structure, and in the connected state, the outer surfaces of the left and right longitudinal beams of the fixation base are flush with the outer surfaces of the left and right imaging panels of the CT positioning device. This stereoscopic positioning image positioning frame, equipped with marking patterns, facilitates subsequent automatic image positioning calibration and enhances user comfort and overall user experience.

Systems and methods of enhanced display and viewing of three dimensional (3D) tomographic data acquired in tomosynthesis or tomography. A set of projection data is acquired with an image acquisition system and used to reconstruct enhanced 3D volume renderings that are viewed with motion, advanced image processing or stereotactically to assist in medical diagnosis. Various enhancements are provided for further processing the images, thereby providing additional features and benefits during image viewing.

1. Name of the product in this design: Intelligent Micro-operator (Control Console). 2. Application of this design: for intelligent control, sensor data acquisition, and remote operation of precision instruments such as intelligent micro-manipulation robotic arms and brain stereo positioning robotic arms. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The present application relates to the technical field of brain stereotaxy, and discloses a wide-view pigeon brain stereotaxy device and an operating method thereof, which comprises a base plate, the surface of the base plate is fixedly connected with an ear canal positioner, a beak angle positioner and a beak mouth positioner, and the operating method for adjusting the ear canal positioner, installing the beak angle positioner, installing the ear canal positioner on a pigeon, installing a beak rod on a pigeon and adjusting the positions of the beak mouth positioner and a horizontal positioning arm is adopted when in use, the horizontal positioning arm slides on the vertical moving track and the horizontal moving track, the left ear rod and the right ear rod move on the vertical column, and the beak rod slides in the sliding groove, so that the installation precision is improved, the positioning device is prevented from falling off, and the problem that the existing pigeon brain stereotaxy device seriously blocks the field of view of a pigeon is solved.