54results about How to "Improve subjective feelings" patented technology

The invention relates to a wireless video streaming service self-adaption rate control method based on the QoE. The method includes the steps of setting up a QoE evaluation model at a receiving end to be used for calculating the quality of user experience, periodically feeding the packet loss rate, the end-to-end one-way time delay and user experience quality information which are obtained at the receiving end back to a sending end through a real-time transmission control protocol, conducting subdivision on network states through the sending end according to the user experience quality and by combining the packet loss rate with the increase or decrease trend of the end-to-end one-way time delay, and judging the network congestion degree. When the user experience quality decreases to a threshold value, the sending end of the wireless video streaming service starts a coding bit rate adjustment unit and adjusts the coding bit rate in a self-adaption mode by taking corresponding strategies according to the monitored network congestion degree, and therefore the user experience quality is improved. According to the method, the user experience quality of the video steaming service can be accurately evaluated in real time, network congestion is reduced through the self-adaption rate control method, and the user experience quality is effectively improved.

The invention provides a method, device and electronic apparatus for audio frequency regulation. The method comprises: detecting the state of the electronic apparatus, and obtaining state information; obtaining first audio frequency parameters corresponding to the state information; and according to the first audio frequency parameters, enabling an audio frequency output unit to output a sound meeting predetermined sound quality conditions. The electronic apparatus can enable the audio frequency output unit to output the sound meeting the predetermined sound quality conditions according to the state information of the electronic apparatus so as to improve user subjective experience.

An electric car driving system sound acquisition sounding method and device relates to electrical system and acoustics caution systems of electric cars. The method includes the following steps: acquiring a sound signal, a car speed signal and a motor rotation speed signal in a motor cabin in real time; filtering out harsh frequency bands in the signals according to the car speed signal and the motor rotation speed signal so as to reduce annoyance of sounds, transmitting the signals to loudspeakers inside and outside the car, and driving the loudspeakers to give real-time sounds of the electric car. The electric car driving system sound acquisition sounding device includes an MCU, loudspeakers inside and outside the car, a car speed signal acquisition unit, a motor rotation speed signal acquisition unit, a sound acquisition device and a filtering processing device. The electric car driving system sound acquisition sounding device is simple in structure, and can truly give respective sounds of the car; the sounds are full in personality, comfortable, melodious, are excellent in subjective perceptibility, can allow passengers to easily distinguish the type of the car, and are excellent in intuitional feeling; the quality, performance, failures and the use time of the car can be estimated according to the sounds of the motor.

The present invention discloses an image processing method and apparatus. According to one embodiment of the present invention, the method includes the following steps that: whether an image to be processed requires pseudo color correction processing is determined; if it is determined that the image to be processed requires the pseudo color correction processing, the characteristics of each pixel in the image to be processed are determined according to the color component values of each pixel in the image to be processed, and pixels to be subjected to pseudo-color correction and pixels which do not require pseudo-color correction are determined according to the characteristics of each pixel in the image to be processed; and the pixels to be subjected to pseudo-color correction are corrected according to the characteristics of the pixels to be subjected to pseudo-color correction, so that a corrected image of the image to be processed can be obtained. According to the image processing method and apparatus provided by the embodiments of the invention, the pixels to be subjected to the pseudo-color processing are corrected, a pseudo-color phenomenon can be eliminated or alleviated under the premise that the definition and color of the image are not affected, and the subjective feelings of the eyes of people can be improved.

The invention discloses a low-illumination-image noise reduction method. The method includes: acquiring a low-illumination image; segmenting the low-illumination image into different texture regions according to differences of image texture information, and dividing the texture regions into foreground image regions and background image regions; adopting different processing strategies to respectively carry out noise reduction on the foreground image regions and the background image regions to obtain processed foreground image regions and background image regions; and synthesizing the processedforeground image regions and background image regions to obtain a noise-reduced image. The invention also discloses a low-illumination-image noise reduction device.

The invention discloses a single-channel voice enhancement method and device, a storage medium and a terminal. The method comprises the steps of obtaining a frequency domain amplitude spectrum of a current frame signal based on a received input signal; performing VAD processing on the full band of the current frame signal based on the frequency domain amplitude spectrum of the current frame signalto obtain an initial full band amplitude spectrum gain function of the current frame signal; dividing the whole band into a plurality of sub-bands; performing VAD processing on the plurality of sub-bands of the current signal frame based on the frequency domain amplitude spectrum of the current frame signal and the initial full-band amplitude spectrum gain function, and updating the initial full-band amplitude spectrum gain function according to the VAD processing result of each sub-band to obtain an updated full-band amplitude spectrum gain function of the current frame signal; and calculating according to the frequency domain amplitude spectrum of the current frame signal and the updated full-band amplitude spectrum gain function to obtain a frequency spectrum after speech enhancement.Through the scheme of the invention, non-stationary noise can be effectively suppressed, the voice quality is protected from being lost, and the voice call quality of mobile equipment such as a mobilephone is favorably improved.

The invention relates to a sound masking-based method for improving satisfaction degree of an acoustic environment. The sound masking-based method comprises the following steps of 1) acquiring environmental noise characteristic according to environmental noise samples with representative significance in different scenes and at different times; 2) selecting a main parameter affecting the satisfaction degree of the acoustic environment according to the characteristic of the environmental noise, and acquiring an expression of the satisfaction of the acoustic environment; and 3) adding effective masking sound including the main parameter to the environment, and adjusting the main parameter until the satisfaction degree of the acoustic environment is not improved any longer. Compared with the prior, the sound masking-based method has the advantages of psychological acoustics-based masking effect, multi-element improvement and the like.

The present invention provides an RGBW image processing method and apparatus. The method comprises the steps of receiving a to-be-displayed image, wherein image data of the to-be-displayed image is expressed by an RGB color mode; determining a memory color area in the to-be-displayed image; performing RGB color mode-to-RGBW color mode conversion on the to-be-displayed image, so as to acquire image data of the to-be-displayed image in the RGBW color mode; and using a Gamma graph to adjust brightness of pixels in the memory color area of the to-be-displayed image in the RGBW color mode. According to the method, after the memory color area in the image is determined, the brightness of the image of the memory color area is adjusted, so as to make the memory color area brighter, so that the subjective experience of the user is improved.

The invention provides an H264-based video data repairing method and a transmission data end. The method comprises the following steps of when data in one frame of image data are wrong or lost, recording the number of wrong or lost strip data in the frame of the image data, and setting a plurality of priorities for the wrong or lost strip data; according to the plurality of priorities, repairing the wrong or lost strip data from high to low in priority. In this way, strip data of high priority are required firstly, and then the subjective feeling of a user can be rapidly improved. In addition,only partial strip data in one frame of image is coded in an intra-frame coding mode for each time. Therefore, the image of each to-be-repaired frame is not large, while the subjective feeling of theuser can be rapidly improved.

The invention discloses an artificial total knee joint prosthesis. The artificial total knee joint prosthesis comprises a femoral condyle, a spacer and a tibia holder connected in sequence, the upper surface of the spacer is in slide fit with the femoral condyle, and the lower surface of the spacer fits with the tibia holder; all of the femoral condyle, the spacer and the tibia holder are made of polyetheretherketone or derivatives thereof. The artificial total knee joint prosthesis has high abrasion resistance, good biocompatibility and good cushion performance, biological properties of normal knee joints can be better stimulated, and subjective feeling of patients can be further improved; besides, the artificial total knee joint prosthesis is long in service life and low in revision rate, metal ion toxicity and anaphylaxis cannot be caused, and perspective development and magnetic resonance imaging are unaffected.

The invention relates to a processing method of digital images, in particular to an image de-interleaving method based on block partitioning. The method comprises the following main steps of: a. partitioning input images into a plurality of image blocks in equal size; b. calculating a basic motion area and a non-basic motion area according to the difference of an image block corresponding to the front image and the back image; c. further calculating an expansion motion area at the non-basic motion area; d. carrying out de-interleaving treatment on the non-basic motion area and the expansion motion area. According to the image de-interleaving method based on block partitioning, the area in block, which needs de-interleaving treatment can be searched effectively; and details of a static image area are remained; sawteeth at edges of a motion target are eliminated effectively; and subjective feeling of an image sequence is improved greatly.

The invention discloses a configuration method and device for an image quality parameter visible for a user. The method includes the steps that a data base is configured, at least one signal source type and the image quality parameter corresponding to the signal source type are recorded in the data base, and the parameter includes a default value and a current value field; according to a user instruction, a user interface is provided for displaying the image quality parameter visible for the user in the current signal source type; the data base is queried, and if a current value does not exist in the corresponding image quality parameter, the default value is aligned to the position of a median of the corresponding parameter on the user interface; if the current value exists, the current value is displayed at the corresponding position according to the difference between the current value and the default value; the user instruction is received, the corresponding image quality parameter value is adjusted, and the adjusted parameter value is recorded as the current value of the image quality parameter visible for the user. The configuration method and device meet the use habits of the user, and the subjective feeling of the user is good.

The invention provides a low ambient temperature air source heat pump air heater defrosting air supplement electromagnetic valve control method, and belongs to the field of improving the defrosting speed of an air heater. The main points of the technical scheme are that when the air heater operates in a heating mode, the air heater monitors own operating parameters and surrounding environmental parameters, and when defrosting conditions are met, the air heater enters a defrosting control preparation mode; after preparation, the air heater enters a defrosting mode; during entering the defrosting mode, an air supplement electromagnetic valve is in an open state, a four-way valve switches into a refrigerating state, an outdoor fan stops, a main electronic expansion valve enters the defrostingopening degree, and an indoor fan operates in a residual heat blowing mode; in the defrosting process, the situation whether the condition of closing the air supplement electromagnetic valve is met or not is judged, and if yes, the air supplement electromagnetic valve is closed; the situation whether the air heater meets the condition of exiting the defrosting mode is judged, and if yes, the airheater enters an exiting defrosting control preparation mode; and after exiting the defrosting control preparation mode, the air heater exits the defrosting mode and enters the heating mode.

A composition containing Salvia officinalis for improving a person's response to thermogenesis is provided. The composition may be used in methods of administration of Salvia officinalis before exercise. The composition may also be administered with thermogenic substances before exercise or before consuming a meal to improve a person's response to thermogenesis.

The invention relates to a vehicle braking control method and device, a storage medium and a vehicle. The method comprises the following steps: obtaining the current speed information of the vehicle when the vehicle is braked, and determining whether the vehicle meets a locking control condition or not according to the speed information; when it is determined that the vehicle meets the locking control condition, obtaining a first braking torque applied to the vehicle through a hub motor of the vehicle and a second braking torque applied to the vehicle through a hydraulic braking device of thevehicle; circularly executing a torque adjusting strategy according to a preset torque adjusting amplitude until it is determined that the locking trend is eliminated in order to make the vehicle controlled to be kept in a non-locking state for braking, wherein the torque adjusting strategy comprises preferentially adjusting the first braking torque and adjusting the second braking torque according to the adjusting result of the first braking torque.

The invention discloses a fine tamping adjustment amount optimization method based on medium and long wave smoothness. Along with acceleration of high-speed railway operation and ordinary-speed railways, the influence of medium-long wave irregularity of a track on traveling performance becomes more and more remarkable, accurate maintenance of a large-scale road maintenance machine serves as a main measure for improving the state of a ballast line, the control effect on medium-long wave irregularity is still insufficient, and in order to effectively improve the state of the line, a medium-long wave smoothness-based track fine tamping adjustment amount calculation model is established on the basis of a medium-long wave smoothness control standard and track fine measurement data, an optimal tamping scheme is obtained by solving according to a nonlinear programming theory in combination with an optimization thought of grouping solving of basic optimization units, and the vehicle track coupling kinetic model is used for evaluating the operation scheme, so that the control and constraint on the medium-long wave irregularity of the track are realized. According to the method, the defects of a traditional tamping method can be overcome, especially in the aspect of eliminating medium-long wave irregularity, and therefore the ballast track line quality is effectively improved.

In a method for operating an internal combustion engine (10) in a motor vehicle, the internal combustion engine (10) can be operated with a start/stop system. The motor vehicle has a brake booster (39) which generates an assisting force for assisting a braking force, wherein the brake booster (39) is supplied by an under-pressure in an air inlet pipe of the internal combustion engine (10). In this context, it is detected when the pressure in the brake booster (39) exceeds a threshold value which is determined in an open-loop and/or closed-loop control device (42).

The invention provides an oxygen enriching and humidifying air purifier and an air purifying method. The oxygen enriching and humidifying air purifier comprises a draught fan assembly, a humidifying assembly, a purifying assembly and an oxygen enriching assembly. The oxygen enriching assembly comprises a gas inlet and a molecular sieve. The draught fan assembly comprises a fan. The humidifying assembly comprises a tank groove. The tank groove is filled with humidifying water. A humidifying net is further installed in the tank groove. The air purifying method comprises the steps that a filtering net purifies air, the humidifying assembly humidifies the purified air, the oxygen enriching assembly separates oxygen from air, the oxygen is mixed with the processed air, and then the air is supplied to a user. By the adoption of the technical scheme, the oxygen content of the air breathed by the user is greatly increased, the indoor air keeps good mobility and humidity, the subjective feelingof the user to use the indoor air is improved, it is effectively avoided that the user suffers oppression in chest, and therefore the use effect is improved.

The invention discloses an interactive method for an immersion type virtual game. The interactive method comprises the following steps that player voice information, player action information, role action information and location information of a virtual scene, where the role is located, of a first client-side are obtained; according to the current player action information of the first client-side, the player action information in the virtual scene is updated timely; and when game characters of the first client-side meet game characters of a second client-side in the virtual scene, the position where the game characters of the first client-side and the game characters of the second client-side are touched is captured, and action feedback to both sides is sent, wherein the action feedbackcomprises starting or closing a vibration device and tightening device on the first client-side or the second client-side. The problem that sense of experience and substitution of traditional virtualgames is poor is solved. Multiple interactive modes such as action interaction and voice interaction are adopted, private interactive space is arranged, interestingness of games is high, and players subjective feelings are enhanced.

The invention relates to a GPR model-based adaptive sound masking system and an adaptive sound masking method. The system comprises a masking sound database, a sound satisfaction agent model and a self-adaptive masking sound screening subsystem. The masking sound database consists of various intermittent natural sounds such as insect buzzing sounds, bird buzzing sounds and water flow sounds. The sound satisfaction agent model is modeled by a Gaussian process regression algorithm. The self-adaptive masking sound screening subsystem is established based on the database and the agent model. The function of the system is to screen out the optimal masking sound in a database based on a unified sound satisfaction agent model for different low and medium frequency background noises, and obtain the corresponding combined sound and the satisfaction value thereof. The system achieves a good sound masking effect for various low and medium frequency noise environments. Compared with the prior art,the artificial intelligence method is applied to the sound masking technology for the first time. The complete self-adaptive sound masking system is constructed. The feasibility and universality of the sound masking technology are improved. The masking sound screening time is saved, and the cost of depending on manual adjustment in the traditional sound masking technology is reduced.