5 results about "Color marker" patented technology

The utility model belongs to the technical field of auxiliary devices, and particularly relates to an auxiliary device for visually impaired people to perceive colors in multiple dimensions, which comprises a book body, each page of the book body is respectively provided with a color marking card, a description card, an olfaction module and a touch module, different colors are marked on each page of the color marking card, and each page of the book body is provided with an olfaction module and a touch module. According to the braille learning book, visual impaired children can conveniently touch and read the braille learning book, the color marking cards and the touch module are fixedly connected with the book body through hook-and-loop fasteners, and shifting sense intercommunication is generated between various feelings and vision through the touch module and the olfaction module, so that things can be deeply known from multiple angles, and the visual impaired children can conveniently read the braille learning book. The visual impaired children can perceive colors in a more vivid and multi-dimensional mode, the feeling of the colors is deepened, description of the colors is more understood, and a certain foundation is laid for spoken language application and writing in the future.

The application discloses a kind of color laser marking composition and its preparation method and application.The color laser marking composition includes the following components calculated by weight parts: resin 88-110 parts;Photosensitive reversible toner 0.1-5 parts;Visible light absorber 0.01-1 parts;Pigment 0.1-2 parts;Ultraviolet absorber 0.05-1 parts.In the application, the color laser marking composition can mark color marks on white and color substrates by adding photosensitive reversible toner and visible light absorber, combined with ultraviolet absorber, has higher definition and color saturation, and marking is controllable.

A surgical robotic system includes a laparoscopic access port having a color mark, and a surgical robot arm including a port latch releasably coupled to the access port. The system also includes a color sensing module including a color sensor to detect a color of the color marker and a system controller to determine a type of the access port based on the detected color.

The present disclosure relates to the field of endoscopy. Specifically, the present disclosure relates to systems and methods which allow the distal portion of a catheter to be visualized within the body using a colored marker and one or more secondary markers. In particular, the present disclosure relates to systems and methods which indicate when a medical device is properly positioned for deployment within a body lumen.

This invention discloses a method for measuring 3D topography and deformation based on marker point culling and extraction, belonging to the field of computer vision 3D measurement and computing. The method includes: creating colored marker points on the surface of the object being measured; projecting a grayscale structured light pattern onto the surface of the object; acquiring the structured light pattern modulated on the surface of the object to obtain a texture pattern; extracting the red, green, and blue (RGB) intensity values ​​of the background and the colored marker points from the texture pattern; calculating the culling coefficient and extraction coefficient based on the RGB intensity values ​​of the background and the colored marker points, and extracting the stripe pattern and marker point pattern respectively; reconstructing the 3D topography using the stripe pattern; associating the preceding and following 3D point clouds using the marker point pattern; and subtracting the corresponding coordinates of the 3D points to obtain 3D deformation information. This method achieves full-field 3D topography reconstruction of complex structures; ensures the accuracy of deformation tracking; and enables 3D topography and deformation measurement of complex objects.