3results about How to "Does not affect visibility" patented technology

The application provides a watermark embedding and extracting method, device, equipment, storage medium and product. The watermark embedding method comprises: performing block processing on an image to be embedded with a watermark to obtain a plurality of image blocks, wherein the plurality of image blocks comprise a first number of first image blocks and a second number of second image blocks, and target feature parameters of the first image blocks and the second image blocks are different; performing transformation processing on the plurality of image blocks respectively to obtain transformation domain features of the plurality of image blocks, wherein the transformation domain features comprise a low-frequency subband and a plurality of high-frequency directional subbands; and based on the transformation domain features of the plurality of image blocks, watermark information is embedded into target low-frequency subbands of the first number of first image blocks and target high-frequency directional subbands of the second number of second image blocks to obtain an image containing a watermark.

The application discloses a fluorinated monosaccharide derivative and a synthesis method and application thereof. The fluorinated monosaccharide derivative is composed of three parts, the first part is a 1-substituted monosaccharide group, the second part is a fluorine signal source perfluoro-t-butyl ether group, and the third part is a triazole ring connecting the two. The fluorinated monosaccharide derivative of the application retains the 2-hydroxyl and 6-hydroxyl of the monosaccharide, thereby not affecting the recognition of the monosaccharide in the body, and having good water solubility and biocompatibility. The derivative contains nine magnetically equivalent fluorine-19, can produce a single and strong fluorine signal, and avoids problems such as fluorine signal splitting or low fluorine atom utilization. The fluorine signal strength has a good linear relationship with the concentration of the compound, which provides a basis for in vivo quantification 19 F MRI. 19 F MRI imaging of HepG2 cells has the potential to be used as a tumor selective 19 F MRI contrast agent.

The embodiment of the invention discloses a vehicle anti-dazzling dimming method and device, electronic equipment and a computer readable medium. According to the main technical scheme, the method comprises the following steps: acquiring an external illumination image sequence of a vehicle, and acquiring motion sensing information of an opposite vehicle; performing light spot detection processing on the external illumination image sequence to obtain a light spot information sequence; based on the light spot information sequence, the light incident angle of each historical time is determined, and the light incident angle is the included angle between the light emitted by the light source and the normal vector of the windshield of the vehicle; based on the light spot information sequence, the motion sensing information and the light incident angle of each historical time, predicting light spot position information and dazzle light intensity information of N times in the future; and performing regional dimming control on the windshield of the vehicle based on the light spot position information and the dazzle light intensity information at the N times in the future. The vehicle anti-dazzling dimming mode can greatly reduce the dazzling risk of the vehicle and improve the safety and comfort of night driving.