5results about How to "Fast compression" patented technology

The invention relates to the technical field of information, in particular to an artificial intelligence decision support method and system for high-frequency transactions. The method comprises the steps of collecting order book data, and obtaining a fluctuation rate and a trading price difference based on the order book data; the window at the current moment is adjusted based on the volatility to obtain a window at the next moment, and window detection is completed through the hash value; counting the order quantity difference of the key prices at the current moment and the adjacent moment and the difference between the buying and selling price difference at the current moment and the maximum buying and selling price difference for the window with the data change, and obtaining a dynamic compression ratio based on the two differences; the DPCM algorithm and the dictionary compression algorithm are adjusted based on the dynamic compression rate, and then compression is carried out; and generating a decision signal based on the compressed data to complete decision support. The compression speed is increased, and the accuracy and integrity of the data are improved.

This invention provides a lossless frame compression method that is easy to implement in HEVC hardware, comprising: S1. Data alignment of the image, expanding the width to a multiple of 64 and the height to a multiple of 16; S2. Block partitioning; S3. Compression of 4*64 size luma PLCU and chroma PLCU, each PLCU being an independent compression unit, with compression performed in units of sbk; obtaining the data_val of all pixels in the luma and chroma PLCU; setting different data_len values ​​according to the characteristics of the data_val of pixels in sbk; S4. Generating the Body, compressing pixels according to the information obtained above; S5. Generating the Head. This method breaks away from the original encoding framework, is more adaptable, and achieves a better compression ratio and faster compression speed through appropriate block partitioning, better luma and chroma component processing, and fewer syntax elements.

The utility model provides a novel efficient concentration device for treating slime water, and relates to the technical field of sewage treatment and mineral processing. Comprising a swash plate thickener and a deep-cone thickener, a connecting pipe is arranged between the swash plate thickener and the deep-cone thickener, a first discharging pipe is arranged at the bottom of the swash plate thickener, a second discharging pipe is arranged at the bottom of the deep-cone thickener, and control valves are arranged on one side of the connecting pipe, one side of the first discharging pipe and one side of the second discharging pipe. A vibration device is installed on the outer surface of the deep-cone thickener, an installation auxiliary plate is fixedly connected to the inner wall of the deep-cone thickener, a pump body is fixedly installed at the top of the installation auxiliary plate, according to the sedimentation characteristics of slime water pulp, the scheme that a swash plate thickener and the deep-cone thickener are combined is adopted, the advantages of the swash plate thickener and the deep-cone thickener are utilized most reasonably, and the purpose of improving the sedimentation efficiency of slime water pulp is achieved. The disadvantages of the two devices are avoided, so that the manufacturing cost and the occupied area of the whole concentration system are greatly reduced.

The utility model discloses a phase guide pipe for enhancing low frequency and loudspeaker, the phase guide pipe is installed in the box of loudspeaker, the box has the sound wave direction from inside to outside, and the phase guide pipe includes expansion section and compression section, and the expansion section is located at the outside of compression section, and the cross section size of compression section decreases along the sound wave direction, and the cross section size of expansion section increases along the sound wave direction, and the length of expansion section is less than the length of compression section. When the sound wave in the box is discharged from the phase guide pipe through airflow, because the length of compression section is longer, so the resistance that compression section receives when compressing airflow is smaller, at this moment, the compression speed of airflow is improved and forms pressure, and after the airflow enters expansion section, because the length of expansion section is shorter, so the airflow bursts out from the phase guide pipe after sharply expanding through expansion section, thereby improving the low frequency loudness and the depth of submergence of loudspeaker.

This invention discloses a concurrent implementation method for motion vector search, relating to the field of H.264 video compression technology. The method includes determining whether the current macroblock meets the conditions for becoming a P_SKIP macroblock based on the P_SKIP macroblock type information of its neighboring blocks. If the current macroblock is determined to be of type P_SKIP, the search ends; otherwise, it proceeds to the next step. Assuming a P16×16 block partitioning method, the pskip_mv variable value predicted from the neighboring blocks is used as the predicted vector value of the current macroblock. The method then calculates and determines whether the current macroblock type is of type P_SKIP. When the determination result does not meet the conditions for a P_SKIP macroblock, parallel search processing is performed, conducting concurrent motion vector searches under different partitioning methods. This invention achieves a significant improvement in compression speed with a slight increase in bitrate, making it more suitable for real-time video compression applications.