Abstract:
This invention discloses an image transmission and display method complies with both chromaticity and visual fidelity principles. It is in the technical field of image transmission and display. In order to totally eliminate factors that affect image reproduction fidelity during process of image transmission and reproduction on display devices (including channel independence and space independence of three primary colors, red-shift effect, gamma correction, methods to generate brightness information and chromatic difference information, gamma correction for all kinds of display devices), this invention created a set of mathematical models and methods. With the invention, data flows are processed complying with both chromaticity and visual fidelity to ensure hues of reproduced image on display device remain unchanged, gray is reproduced accurately and chromaticity coordinates ratio remains unchanged as well. This is a universal method to ensure fidelity for image transmission and display, and can be widely applied on televisions, computers and mobile telecommunication devices. Furthermore, it provides support of chromaticity and methodology for color management system, design and development of associated software and hardware, and system which is a combination of digital high definition television and computer.
Abstract:
A vertical ring high gradient magnetic separator comprises an exciting winding coil (11) and a coil casing (12), wherein the winding coil (11) is immerged in coolant in the coil casing (12), the winding coil (11) is of a multi-layer structure, and an insulating member is provided between each layer or a plurality of layers of the winding coil (11) to form gaps through which the coolant passes. The winding coil of the vertical ring high gradient magnetic separator has a rapid heat dissipation capability in the coolant, which can ensure the winding coil maintaining a lower temperature during operation, thereby obtaining a higher magnetic field strength.
Abstract:
A vertical ring high gradient magnetic separator comprises an exciting winding coil and a coil casing, wherein the winding coil is immerged in coolant in the coil casing, the winding coil is of a multi-layer structure, and an insulating member is provided between each layer or a plurality of layers of the winding coil to form gaps through which the coolant passes. The winding coil of the vertical ring high gradient magnetic separator has a rapid heat dissipation capability in the coolant, which can ensure the winding coil maintaining a lower temperature during operation, thereby obtaining a higher magnetic field strength.
Abstract:
This invention is a universal gamut mapping and color management method and relates to color digital image processing technical field. It involves high-accuracy image coordinates conversion in device color space, high fidelity chroma transmission between input and output devices, cross-media gamut mapping technologies and color management system built based on these technologies.This invention is accurate, efficient and versatile. It can be widely used in image processing hardware manufacture and software design for image transmission and receiving devices such as computer, digital TV, digital image displays, digital video camera and television camera, etc. Technical features of this method: eliminates red-shift interference, keeps 3 primary colors' independency and channel independency during color synthesis and segmentation, gives priority to grey component reproduction, transfers luminance and chromaticity data in accordance with luminance independent theory, new Dlxlyl profile connection space, accurate color prediction and gamut mapping equation, etc. The combination of all these features guarantees the versatility of this method.