11results about How to "Improve defogging effect" patented technology

The application discloses a deep learning-based artillery barrel target image defogging method and system, which comprises the following steps: inputting an original artillery barrel target image into a trained defogging enhancement network model for processing, wherein the defogging enhancement network model comprises an improved U-Net module, an AOD-Net module and an atmospheric scattering model layer connected in sequence; the improved U-Net module is used to extract multi-scale features of the original artillery barrel target image, and output the multi-scale feature maps to the AOD-Net module; the AOD-Net module is used to extract features under different receptive fields of the multi-scale feature maps through different convolution layers, realize multi-scale feature fusion, and output input values of the atmospheric scattering model layer; and the atmospheric scattering model layer is used to obtain the defogged artillery barrel target image based on the input values. The model is constructed by connecting the U-Net and the AOD-Net in series, a new model optimizer is proposed, the algorithm of gradient descent is optimized, and a self-adaptive weight loss function is introduced, so that efficient defogging processing under complex fog and haze conditions is realized.

The invention provides a polarization image defogging method based on a neural network, and belongs to the technical field of image processing, and the method comprises the steps: obtaining a plurality of fogged polarization images, and generating a polarization image package; constructing a neural network defogging model; and based on the constructed neural network defogging model, carrying out defogging processing on the foggy polarization image in the generated polarization image packet to obtain a fogless image. According to the image defogging method, the deep learning and the polarization imaging technology are combined, the problem that the calculation complexity of the polarization imaging technology is high can be effectively solved, the overall generalization ability and defogging level are improved, and better robustness and high adaptability can be shown in the face of different types of fog and different degrees of haze.

The application discloses a kind of light multi-scale image defogging methods based on attention mechanism, the method is first to the feature extraction of fog image;Then the feature map obtained is input MDSCA- NET network, and the fog-free image is reconstructed;The MDSCA- NET network includes several image defogging models, model fusion module;The image defogging model includes feature attention module, fog-free map generation module;The feature attention module is used to extract the pixel feature in feature map;The fog-free map generation module is used to generate initial defogging image for pixel feature map;The model fusion module is used to use alternating direction multiplier optimization algorithm to carry out model fusion to several image defogging models, and output final defogging image.Experiments show that the MDSCA- NET network proposed in the application obtains significant results under the comprehensive measurement of model performance and parameter quantity.

This invention discloses an image dehazing method, system, and embedded device. The dehazing method of this invention adopts a two-branch dehazing model. The first branch of the dehazing model preserves the edge details of the hazy image by constructing bilateral grid data, thereby improving the clarity of the restored image. The fusion module fuses the bilateral grid data output by the first branch of the dehazing model and the depth information output by the second branch of the dehazing model, thereby improving the model's dehazing capability and effectively solving problems such as color distortion and incomplete dehazing.

The utility model relates to the technical fields of petroleum chemical demister, especially to the multistage demister for petroleum chemical industry, which can effectively enhance the demisting effect, avoid the corrosion caused by the liquid droplet flow out of flue gas carrying to equipment and pipeline etc, improve the service life of equipment, including the riser and outer cylinder, four groups of connecting columns are arranged on the outer wall of riser upper side annular equidistance, the inner wall of outer cylinder is fixedly connected with four groups of connecting column outside, the inner wall of riser is fixedly provided with spiral blade, the inner side of spiral blade is fixedly provided with multiple baffle groups, the top of riser is fixedly and continuously provided with the blanking bushing, multiple gas outlets are arranged on the blanking bushing upper annular equidistance, multiple tangential guide plates are respectively blocked outside multiple gas outlets and are tangent with the outer wall of blanking bushing, multiple spiral guide plates are fixedly arranged on the inner wall of outer cylinder upper annular equidistance, the top of drainage hopper is fixedly connected with the top cover, three exhaust ports are annular equidistantly arranged on the taper surface of drainage hopper and are communicated.

The efficient and uniform demisting device suitable for the stage lamp and the stage lamp provided with the efficient and uniform demisting device are provided, the demisting device comprises the draught fan and the air guiding device, the draught fan generates air flow and guides the air flow to a lens of the stage lamp through the air guiding device, and an air inlet of the draught fan is far away from the lens. The demisting device is arranged in the lamp holder, hot air in the lamp holder can be extracted and blown to the lens, the lens is heated, and therefore demisting is fast and good, the structural arrangement is simple and easy to implement, the demisting efficiency and the demisting effect are improved, and the demisting device is more economical and environmentally friendly; secondly, the air guide device is arranged between the air outlet of the fan and the lens, an outlet air duct of the air guide device is divided into a plurality of shunting air nozzles through a plurality of flow deflectors, and airflow is directionally guided to different areas of the lens through the shunting air nozzles in different directions, so that the airflow is prevented from being concentrated in an edge area or a middle area of the lens; the uniformity of the overall airflow coverage of the lens is improved, and an excellent demisting effect is further provided.

The invention discloses an image defogging method and system based on adaptive convolution and texture prior, and belongs to the technical field of computer vision. The method comprises the following steps: acquiring an original image; inputting the original image into a self-adaptive multi-scale convolution module in the defogging model for processing to obtain a coding feature map; according to a discrete feature codebook obtained through pre-training, optimizing the coding feature map through a texture restoration module in a defogging model to obtain a texture restoration feature map; and processing the texture restoration feature map through a decoder in a defogging model to obtain a defogged target image. According to the scheme, on one hand, the feature extraction effect of non-uniform fog spots in a complex real scene is improved through the adaptive multi-scale convolution module, and on the other hand, the smoothed texture in the feature extraction process is restored through the texture restoration module, so that the defogging effect of the image is improved.

The invention discloses a zero-sample image defogging method based on high-frequency enhancement and depth guidance optimization, which comprises the following steps of: firstly, extracting a high-frequency component from a single foggy image by utilizing Laplacian pyramid decomposition, and inputting the foggy image and the high-frequency component thereof into a defogging network; and performing dynamic weighted fusion on the high-frequency detail information and the low-frequency structure information through a multi-scale feature adaptive enhancement module, and estimating transmissivity and atmospheric optical parameters based on an estimation network to generate a defogged image. Furthermore, a re-atomization network which is symmetrical with the defogging network structure is introduced to generate a re-atomization image, a bidirectional mapping relation between defogging and fogging is constructed, and joint optimization is performed on the network through circulation consistency, atmospheric light consistency, transmissivity consistency and depth consistency constraint based on difference perception. According to the method, the detail fidelity and the structure consistency of the defogging result are effectively improved under the condition that the samples do not need to be supervised in pairs, and the method is particularly suitable for an image enhancement task in a complex non-uniform haze scene.

This invention belongs to the field of environmental protection equipment technology and discloses an active demister for ammonia desulfurization and its usage method. The demister includes multiple demister units arranged in parallel. Each demister unit includes a ventilation cylinder, a lower stationary blade, an upper stationary blade, and a moving blade assembly. The ventilation cylinder is a hollow cylinder with openings at the top and bottom and sealed on all sides. The lower stationary blade, upper stationary blade, and moving blade assembly are coaxially arranged vertically inside the hollow cavity of the ventilation cylinder. The lower stationary blade is fixedly connected to the bottom of the ventilation cylinder, and the moving blade assembly is located above the lower stationary blade. The moving blade assembly can rotate around its central axis. The upper stationary blade is connected to the moving blade assembly via a moving blade bearing, preventing the upper stationary blade from rotating with the moving blade assembly. This device enables the moving blade assembly to rotate in the opposite direction to the stationary blade guide under the upward-moving flue gas, increasing the relative velocity between the flue gas and the blades while reducing gas phase resistance, thus achieving a better demister effect.

The utility model provides a deacidification recovery system of nitrogen for refrigerant R134a production, which belongs to the technical field of fluorination and comprises a fluorination water scrubber, a nitrogen recovery alkaline scrubber, a nitrogen buffer tank, a nitrogen compressor, a refrigerated dryer and a nitrogen storage tank which are sequentially connected along the nitrogen flow direction. A first demister is arranged between the fluorination water washing tower and the nitrogen recovery alkaline washing tower, and a liquid phase outlet in the bottom of the first demister is connected with a liquid return port of the fluorination water washing tower; a second demister is arranged between the nitrogen recovery alkaline washing tower and the nitrogen buffer tank, and a liquid phase outlet in the bottom of the second demister is connected with a liquid return port of the nitrogen recovery alkaline washing tower; an outlet of the nitrogen compressor is further connected with a gas return port of the nitrogen buffer tank, and a nitrogen recovery cooler is further arranged between the nitrogen compressor and the gas return port of the nitrogen buffer tank. According to the system, the waste nitrogen is subjected to deacidification treatment and recycling, and the purposes of saving energy, reducing emission and reducing the production cost are achieved.

The utility model relates to a demister baffling structure, which belongs to the technical field of demisters and comprises a plurality of baffle plates positioned in a reaction tower, each baffle plate comprises a first stirring plate section, a second stirring plate section, a first straight plate section, a first folded plate section, a second straight plate section, a second folded plate section and a third straight plate section, and the first straight plate section, the first folded plate section, the second straight plate section, the second folded plate section and the third straight plate section are integrally connected. The first straight plate section, the second straight plate section and the third straight plate section are arranged in the airflow flowing direction. One end of the first stirring plate section is fixed at one end of the second folded plate section; and one end of the second stirring plate section is fixed at the other end of the second stirring plate section. According to the utility model, one end of the first stirring plate section arranged along the inclination direction of the second folded plate section is fixed at one end of the first straight plate section, and then one end of the second stirring plate section arranged parallel to the second straight plate section is fixed at the other end of the second stirring plate section; according to the demister, airflow in the airflow channel can be uniformly distributed, the airflow velocity gradient is slowed down, and the airflow pressure drop is reduced, so that the demisting efficiency and the demisting effect of the demister are improved.