4results about How to "Improvement factor" patented technology

The application discloses a video processing method, device and equipment and a computer readable storage medium, and applies to the field of video processing, and comprises the following steps: receiving a code stream output by an encoder; if a saturation enhancement enabling flag in the code stream is valid, determining whether a pixel belongs to a skin color protection area according to a preset condition in a linear light domain; if the pixel belongs to the skin color protection area, performing smoothing interpolation processing on a saturation scaling factor in metadata parameters by using a sliding window according to a relative position of a hue angle of the pixel in a skin color interval to obtain an effective enhancement coefficient; if the pixel does not belong to the skin color protection area, taking the saturation scaling factor as the effective enhancement coefficient; and obtaining an enhanced color component according to a color difference component of the pixel and the effective enhancement coefficient and a luminance value of the pixel. The application solves the problems of insufficient saturation, over-saturation of the skin color area, skin color distortion and other video quality problems of an HDR video after dynamic range conversion.

The invention provides an optimized foam system for a fractured-vuggy carbonate reservoir as well as a preparation method and a profile control and displacement method thereof, and relates to the technical field of oilfield chemistry. The preparation method of the optimized foam system for the fractured-vuggy carbonate reservoir comprises the following steps: mixing a surfactant with a solution to obtain a surfactant solution; mixing the authigenic fiber with the obtained surfactant solution to obtain a solution; and the obtained solution and gas pass through a foam generator to generate foam. By means of the method, a stable packing layer with certain supporting capacity can be formed on the interface of the water layer and the foam to isolate subsequent foam from the water layer, the sweep range and the passing capacity of a foam system in a large-scale flowing space can be improved, and the sweep coefficient of the stratum is effectively improved.

The invention provides a leakproof ostomy bag convenient to replace and clean, which comprises a bag body assembly and a sealing mechanism, the bag body assembly comprises an outer lining bag, a collecting bag and an ostomy base plate; wherein the collecting bag is fixedly connected to the inner side wall of the outer lining bag. The hydrocolloid dressing ring is used for absorbing wound exudate and expanding to form a gel barrier so as to improve the leakage-proof performance of the ostomy bag, the expansion characteristic of the hydrocolloid dressing ring can be used for being matched with the quick-release connecting mechanism to form mechanical pre-tightening force, and the sealing performance between the quick-release connecting mechanism and the artificial ostomy is improved; the collecting bag and the stoma base plate are connected through the quick-release connecting mechanism, so that when the stoma bag is replaced, axial stress is replaced with radial stress, or dismounting and mounting force does not directly act on the skin of a patient; or the dismounting force is concentrated in the mechanism; or a dismounting force reduction coefficient is increased; the traction force to the skin is reduced, and the disturbance to the stoma is reduced.

This invention relates to the field of carbon dioxide geological storage and utilization technology, specifically to a method for determining the relative permeability of shale gas and water considering CO2 connectivity. It includes: obtaining basic parameters of the shale; establishing the relationship between CO₂ connectivity (CI) and bound water saturation (S). wi The quantitative relationship; based on the theory of variable diameter capillary tubes, the shape coefficient F of the pore throat unit is introduced. i This invention couples CO₂ connectivity (CI) into the analytical expression of gas-water relative permeability, constructing a shale gas-water relative permeability calculation model that considers CO₂ connectivity. By incorporating this dynamic key parameter into the model construction and establishing an exponential quantitative relationship between CO₂ connectivity and bound water saturation, the influence of the proportion of effective flow paths of CO₂ in the pore-throat network on seepage is accurately quantified. This results in a correlation coefficient between the model's calculated values ​​and experimentally measured values ​​exceeding 0.95, significantly outperforming the traditional Brooks-Corey model and improving the accuracy of relative permeability prediction for low-permeability shale.