36results about How to "Reduced compression loss" patented technology

A computer implemented system for automatically recording and generating predictive outputs relating to a medical procedure is described. The system is augmented with biometric sensory data from a biometric sensor coupled to a body of a healthcare practitioner. The biometric sensory data is processed to obtain one or more time-synchronized data objects providing a proxy to an estimated stress level associated with the healthcare practitioner, and the one or more time-synchronized data objects are utilized to identify abnormality-related durations of time encapsulated in the form of time-based metadata tags. The time-based metadata tags are utilized to automatically modify characteristics of the recording or generating of predictive outputs to temporarily consume more computational processing resources during the abnormality-related durations of time.

A scroll compressor includes a first scroll and a second scroll. The first scroll has a step portion that separates an elevated portion and a recessed portion of a surface of the first scroll. A spiral wall of the second scroll has a step that separates an elevated portion and a recessed portion of the wall. A first bypass hole is provided in the elevated portion of the surface of the first scroll. A second bypass hole is provided in the recessed portion of the surface of the first scroll. The second bypass hole is within 360 degrees toward a center of the spiral of the first scroll from an outer end of the spiral. The first bypass hole is within 360 degrees from the second bypass hole toward the center of the spiral.

The invention discloses a thickness control method of a compressed layer of wood layered compression. The thickness control method comprises the following specific steps that a, wood is soaked with water; b, the wood is put onto a press which is preheated to 70-250 DEG C; c, the press is closed rapidly, the wood is preheated, and the preheating time is determined according to the position where the compressed layer is formed; d, the wood is compressed through the press, and the compressing speed is 0.05-3 mm/s; e, heat preservation is conducted, specifically, heat preservation and standing are conducted for 20 minutes or longer after compression is completed; and f, cooling is conducted, the press is opened, and the compressed wood is obtained. By the adoption of the thickness control method, thickness control of the compressed layer of wood layered compression can be effectively achieved, selective oriented compaction of the wood is achieved, the using performance and using value of the wood are greatly improved, and the thickness control method has high economic benefits and social benefits.

A hydraulic radial-piston pump transfers the wind energy of the rotor to an adjustable hydraulic motor on ground level, driving an electric generator with constant speed. The pump consists of piston assemblies, located in radial direction between camshaft and housing, supported by spherical bearings at the housing and cylindrical bearings at the camshaft, allowing for self-adjustment of the assemblies. The radial and axial bearings of the camshaft are pivotally mounted allowing for self-adjustment to the housing. At least two planes with cams opposing each other compensate the piston forces in radial direction. Preferably, the pump has four planes symmetrically arranged around a plane between the second and third plane, compensating the piston forces in axial direction. The center of gravity of the rotor is located between or near the bearings of the camshaft. The loads are supported by hydraulic pressure fields, minimizing frictional losses and increasing longevity.

A resilient structure having a fiber batt with coil springs disposed therein and respective coil spring paths. Each of the coil spring paths extending from a respective coil spring and having a profile similar to a cross-sectional profile of the respective coil spring taken in a plane parallel to a length of the coil spring. A method is also provided for heating the coil springs and inserting the coil springs into a side wall of the fiber batt to produce the coil spring paths that have a profile similar to a cross-sectional profile of the respective coil spring taken in a plane parallel to a length of the coil spring.

The invention discloses a three-dimensional seismic body vector quantization compression body rendering method. The method includes the steps of data preprocessing, vector quantization and decompression rendering. Through introduction of target features, compression loss of a target area is reduced, and the compression rate of a non-target area is improved. By means of introduction of the concept of data grading, data compression is facilitated. By means of introduction of hierarchy features, a target area is determined with combination of the hierarchy features, and compression of volume data is carried out by means of the information. Through introduction of the concept of an error coefficient, the distortion degree of the target area is effectively reduced by means of the error coefficient, and the compression rate of the whole is improved. As is shown in theories and emulation analysis, the method improves the peak signal-to-noise ratio of the target area on the situation that the whole data compression rate is improved.

The invention discloses a novel swinging rotor compressor with a low-pressure cavity in a shell. The novel swinging rotor compressor with the low-pressure cavity in the shell comprises a machine shelland a pump body; the pump body comprises an air cylinder component; a crankshaft is arranged on the air cylinder component in a sleeving manner; a motor is arranged above the crankshaft in a sleevingmanner; the pump body further comprises a swinging rotor arranged in the air cylinder component; the swinging rotor is connected to the air cylinder component through a sliding piece; the inner cavity of the air cylinder component is divided into a first compression chamber and a second compression chamber through the swinging rotor and the sliding piece; the first compression chamber is connected with an air suction silencing chamber through an air inlet channel; the second compression chamber is connected to an integrated exhaust cover component through an exhaust channel; and the exhaust cover component is connected to a shell exhaust pipe through an inner exhaust coil pipe. The compressor is low in vibration, low in noise, high in refrigeration amount, and excellent in starting performance.

The invention discloses an exhaust valve component and a linear compressor. The exhaust valve component comprises a cylinder head with an exhaust chamber and an exhaust valve piece which is arranged in the exhaust chamber and is connected with the cylinder head through an elastic component, wherein the elastic component is rod-shaped or slice-shaped. Adopting the exhaust valve can achieve the benefits that the situation that an air cylinder cannot be effectively sealed due to the deformation or decentration of a compression spring is avoided; the device is assembled more easily; and the elastic component is made of a highly elastic resilience material, so that the compression loss is reduced, the exhaust is easier, and the performance and production efficiency of the linear compressor are improved.

The invention discloses an inertial data compression method, a server and a computer readable storage medium. The method includes the steps: acquiring inertial data to be compressed in an inertial sensor by the aid of the server; performing feature extraction on the inertial data to be compressed by the aid of a preset main component mapping model to obtain a mapping feature value; reflecting a mapping relationship between the inertial data and the feature value by the preset main component mapping model; performing linear predictive coding on the mapping feature value to obtain a predictive coding result; performing compression coding on the predictive coding result. Features of the inertial data to be compressed are extracted by the preset main component mapping model, predictive effectsof the predictive coding result can be improved, the predictive coding result is compressed and encoded, processing delay of the inertial data can be reduced, compression ratio is improved, processing and calculating complexity of the inertial data is reduced, and compression loss of the inertial data is reduced.

The invention relates to a video compressed coding method. Predicted reference weights of reference pixels in different prediction searching windows are calculated to obtain an optimal prediction residual error of each pixel, an optimal quantified residual error is obtained in an adaptive quantification manner, and thus, the transmission bandwidth after video image coding is reduced greatly, and the compression loss after compressed coding is lower.

The invention relates to a VR (Virtual Reality) three-dimensional image compression method and device. The method comprises the steps of (a) obtaining a multi-frame original three-dimensional image; (b) distinguishing key frame images and non-key frame images in the original three-dimensional image; (c) eliminating redundant data in the non-key frame images; (d) dividing data of the key frame images into a plurality of macro blocks; (e) obtaining prediction residuals of the macro blocks according to an adaptive template; and (f) obtaining the quantization residuals of the prediction residualsaccording to the fluctuation state so as to form a transmission code stream. According to the invention, inter-frame compression is carried out through performing inter-frame redundancy elimination onthe VR collected three-dimensional image, and an intra-frame compression coding method based on the adaptive template and fluctuation state is adopted for key frames, so that the compression rate ofthe VR image is improved, the compression loss is reduced, and the transmission bandwidth is further reduced.

The invention relates to the technical field of household appliances, in particular to an exhaust valve assembly, a compressor and refrigeration equipment. The exhaust valve assembly provided by the embodiment of the invention comprises a valve seat, a valve plate and an auxiliary opening and closing mechanism; the auxiliary opening and closing mechanism can provide an auxiliary force for the freeend of the valve plate, auxiliary force is directed from an exhaust port to the free end of the valve plate, the auxiliary opening and closing mechanism can offset the elastic force of the valve plate with the auxiliary force of the free end of the valve plate, the elastic force of the valve plate does not need to be overcome when a compression chamber exhausts air, thus the pressure in the compression chamber is reduced when air is exhausted, the compression loss is reduced and the energy efficiency is improved; and in addition, when the compression chamber needs capacity change, the auxiliary force exerted by the auxiliary opening and closing mechanism drives the free end of the valve plate to open the exhaust port, the compression chamber communicates with a shell, a capacity chamber can not complete the compression process, and the capacity change is realized. The capacity change of the compressor can be realized without introducing pressure, and the energy efficiency of the compressor can be improved.

The invention provides an image processing method, device, equipment and system. The method comprises the following steps: acquiring decoded image information; inputting the decoded image information to a first processing network, and processing the decoded image information by the first processing network to obtain a distorted image corresponding to the decoded image information; and inputting a target image corresponding to the distorted image to a second processing network, so that the second processing network performs artificial intelligence processing for realizing intelligent analysis according to the target image, wherein the first processing network is obtained by training according to the features of the sample image before coding and the features of the distorted sample image corresponding to the decoded sample image. Through the technical scheme of the invention, the compression loss in the image can be avoided or reduced.

The invention discloses a machining fixture and a machining method for a piston of a compressor and the compressor. The machining fixture for the piston of the compressor comprises a rack, a piston, a cutting piece, a first fixing part, a second fixing part and an auxiliary part; the cutting piece can be connected with the rack, and the first fixing part is adapted for fixing the piston; and the first fixing part can be connected with the rack, the second fixing part can be switched between the first position and the second position, the second fixing part can be connected with the rack, and the auxiliary part can be connected with the second fixing part. When the second fixing part is located at the first position, the auxiliary part abuts against the piston, and an installing groove is machined on the piston by the cutting piece; and when the second fixing part is located on the second position, the second fixing part drives the auxiliary part away from the piston. According to the machining tooling for the piston of the compressor, the situations that the precision is low and the piston is deformed due to unbalancing cutting force when the cutting piece cuts the piston directly can be avoided; and the machining tooling is simple, cost is low, and precision is high.

The present disclosure provides an image encoder. The image encoder is configured to encode an original image and reduce compression loss. The image encoder comprises an image signal processor and a compressor. The image signal processor is configured to receive a first frame image and a second frame image and generates a compressed image of the second frame image using a boundary pixel image of the first frame image. The image signal processor may include memory configured to store first reference pixel data which is the first frame image. The compressor is configured to receive the first reference pixel data from the memory and generate a bitstream obtained by encoding the second frame image based on a difference value between the first reference pixel data and the second frame image. The image signal processor generates a compressed image of the second frame image using the bitstream generated by the compressor.

The invention discloses an SHVC fast coding method combining coding depth estimation and Bayesian decision, and the method is implemented in a way that an original coding method is maintained at a base layer, and a fast coding method is adopted at an enhancement layer. The SHVC enhancement layer fast coding method comprises a coding tree unit (CTU) depth range estimation method, a coding unit (CU)fast division method based on minimum risk Bayesian decision and a prediction unit (PU) fast mode selection method based on maximum probability Bayesian decision. According to the method, the complexity of CU depth division and PU mode selection in SHVC enhancement layer coding is greatly reduced, and the coding speed of SHVC is effectively improved on the premise of maintaining the coding compression efficiency.