3results about How to "Guaranteed dynamic range" patented technology

The invention relates to the technical field of image processing, in particular to a real-time exposure control and image synthesis method for a multi-lens array, which comprises the following steps: an acquisition step: acquiring images shot by a plurality of lenses and corresponding sensor read-out rate information; a processing step comprising: determining exposure parameters through a multi-level hardware level exposure control unit based on the image and the sensor readout rate information; adjusting exposure settings of the plurality of lenses according to the exposure parameters; generating a mask based on the adjusted images shot by the plurality of lenses; performing image synthesis according to the mask and the images shot by the plurality of lenses; the output step comprises the step of outputting the synthesized image, the method can complete exposure parameter adjustment of a plurality of lenses within the millisecond level, and the real-time performance of the system is greatly improved. Meanwhile, an exposure prediction mechanism based on reinforcement learning enables the system to quickly adapt to scene changes, and the problem of response lag of a traditional method is effectively solved.

A method for sampling an ultra-wideband signal, the method comprising the steps of pre-arranging a GPR antenna comprising at least one transmitter and one receiver, a variable gain amplifier or VGA, an A / D converter and a control unit. Then, the method comprises the steps of transmitting and receiving a primary ultra-wideband signal by the GPR antenna, and sampling a value of the primary ultra-wideband signal by the A / D converter with respect to a first full-scale portion. The method further comprises the steps of transmitting and receiving at least one secondary ultra-wideband signal by the GPR antenna, amplifying the secondary ultra-wideband signal by the variable gain amplifier, and sampling a value of the secondary ultra-wideband signal by the A / D converter with respect to a full-scale portion different from the first portion.

The application discloses a low-bit matrix calculation device with a floating-point scaling factor and a calculation method thereof. The device comprises a scaling factor processing module, an input module, a matrix calculation module, a floating-point accumulation module and an output module. The method first groups and quantizes weight and eigenvalue matrices to obtain quantization values and floating-point scaling factors; then, the scaling factor product is calculated in advance with a single accumulation length as a grouping unit; then, matrix multiplication and accumulation operation is performed, the result is multiplied by the scaling factor product after being converted into an fp16 or bfp16 format, and then accumulated into a final result; and finally, the result is output after being dequantized. The application simplifies the group-wise calculation process, saves hardware resources, guarantees calculation accuracy, meets different scene requirements and improves calculation efficiency by sharing the scaling factor product and using fp16 or bfp16 as an accumulator.