81 results about "Resolution threshold" patented technology

The invention discloses a video processing method, which is used for transmitting multi-channel video content. The method comprises the following steps: acquiring multi-channel video data to be synthesized; judging whether the resolution of the video data of each channel to be synthesized exceeds a resolution threshold; if so, adjusting the resolution to be equal to or lower than the resolution threshold; and merging the multi-channel video data to be synthesized into one-channel video data. The invention also discloses a device and a system for realizing the method.

The invention belongs to the field of picture playing and discloses a method and device for preloading of a picture. According to the method and device for preloading of the picture, when pictures are played by a picture player or by an audio and video player, the picture that needs to be preloaded is triggered and obtained; the fact that whether the resolution ratio of the picture needing to be preloaded is beyond a preset resolution ratio threshold value is judged; if the resolution ratio of the picture is beyond the preset resolution ratio threshold value, a compression multiple is calculated according to the picture compression algorithm; the picture is compressed according to the compression multiple, and the compressed picture is preloaded. Therefore, the method and device for preloading of the picture have the advantages that OOM is effectively prevented, smooth playing of the picture is guaranteed, and user friendliness is achieved.

The invention discloses a camera image resolution estimation system which comprises a camera module, a standard image, an upper computer, a resolution estimation module and a module data collecting module. The invention further discloses an estimation method of the camera image resolution estimation system. The estimation method comprises the steps that (1) the camera module is connected with the module data collecting module; (2) the module data collecting module is provided with a camera and a camera image is read into a cache area; (3) the camera image is transmitted to a memory of the resolution estimation module from the cache area of the module data collecting module through a data line; (4) if a camera resolution estimation value is larger than a set resolution threshold, the resolution estimation module sends the signal that the focus of the camera is adjusted to the required resolution degree; (5) the resolution estimation module estimates the resolution of the image, and the user adjusts the position of a lens according to a display result. The camera image resolution estimation system has the advantages of being intelligent, high in efficiency, high in accuracy and the like.

A method that incorporates teachings of the subject disclosure may include, for example, receiving, by a system comprising a processor, first media content from a service provider network over a high resolution channel at a first resolution, determining whether a first resolution exceeds a resolution threshold for viewing the first media content, transmitting a notification to the service provider network that the first resolution exceeds the resolution threshold, receiving the first media content from the service provider network over the high resolution channel at a second resolution according to the notification, wherein a difference between the first resolution and the second resolution provides unused bandwidth on the high resolution channel, and receiving second media content from the service provider network over the unused bandwidth of the high resolution channel. Other embodiments are disclosed.

The invention discloses a road damage detection method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring a to-be-detected image, and judging whether the image resolution of the to-be-detected image is greater than a resolution threshold; if the image resolution of the to-be-detected image is greater than a resolution threshold, performing segmentation processing on the to-be-detected image to obtain N to-be-detected image blocks; inputting each to-be-detected image block into a preset road damage detection model for detection to obtain detection information of each to-be-detected image block; and finally, combining the detection information of each to-be-detected image block to obtain road damage information of the to-be-detected image. Not only is the problem that the road damage detection result is inaccurate solved, but also the road damage detection efficiency is further improved.

The invention discloses a method for two-point control gesture recognition of a four-wire resistance touch screen. The touch screen is provided with an X-axis and a Y-axis. The method comprises the following steps that a, a single-point touch voltage resolution threshold and a two-point touch voltage resolution threshold are measured; b, touch detection is carried out, if touch motion exists, the step c of touch recognition is carried out, otherwise, the step b is executed in a looping mode; c, a measured and marked voltage value is compared with the voltage resolution thresholds in the step a, and whether the touch motion is single-point touch or two-point touch is judged; d, two-point touch gesture recognition and single-point touch coordinate positioning are carried out. According to the method, because voltages are applied to the four-wire resistance touch screen, the change tendency of the voltages is measured to judge single-point touch and two-point touch, and two-point touch gesture recognition is carried out, hardware cost is not increased, less software resources can be consumed, recognition precision and accuracy can be improved, the using diversity of the four-wire resistance touch screen is expanded, and the four-wire resistance touch screen has very good popularization and using value.

The invention relates to the technical field of virtual reality, and particularly relates to a VR (Virtual Reality) image processing and displaying method and device which solve a technical problem that VR head-mounted display equipment displays the video content of a wearer and cannot display the global video content including multiple users in the prior art. The VR image processing method provided by the invention comprises the steps of mapping orientation information and action information of each user in the real world in a multi-user interaction scene into a virtual scene corresponding to the multi-user interaction scene to obtain a global VR image; projecting the global VR image to the perspective of the head-mounted equipment of each user by adopting the specified resolution to obtain a projection screen corresponding to each user; and correspondingly transmitting the projection screen corresponding to each user to the head-mounted equipment of the corresponding user directly if the specified resolution is less than or equal to a first resolution threshold. The respective global images can be displayed on the VR head-mounted equipment in a multi-user interaction scene according to the invention.

The invention provides an image processing method and device, and a video signal splicing processor. The image processing method comprises the following steps: collecting an image signal of a signal source to acquire image resolution of the image signal; when judging that the image resolution is greater than the preset resolution threshold, blocking the image signal so that the resolution of eachpixel unit obtained through blocking is the resolution threshold; determining the resolution of each pixel unit, adjusting the clock frequency according to the resolution of the pixel unit, and performing analysis processing on each pixel point included in the pixel unit by using the adjusted clock frequency. Through the image processing method provided by the embodiment of the invention, the clock frequency of the processor can be reduced, and the service life of the processor is prolonged.

The invention, which relates to the technical field of forest resource monitoring, provides a deciduous forest tree-level parameter measuring method based on a small spot airborne radar. The method comprises: carrying out laser radar scanning on a deciduous forest area and collecting data; carrying out preprocessing and analysis on the obtained data to separate canopies at different heights; on the basis of a digital surface model (DSM)-based method, carrying out segmentation of different resolution thresholds on each isolated canopy; combining tree segment across layers segmented at all layers and drawing a single tree; and extracting tree-level parameters to complete measurement of corresponding deciduous forest tree-level parameters. According to the method provided by the invention, anaverage detection rate and average overall accuracy of the leaf tree under the forest can be improved obviously and the obtain overall precision of all trees is improved. A solution having the broadprospects is provided for effective and robust single tree segmentation.

The invention relates to an eardrum state real-time analysis method. The method comprises the following steps: using a pressure measuring gauge which is arranged inside a patient ear and used for measuring and outputting the real-time pressure inside the patient ear in real time; using a nasal irrigator which is used for cleaning the nasal cavity of a patient by adopting a manner of spraying the nasal cavity of the patient with saline water, and giving out a spraying starting signal when starting the spraying of saline water, and giving out a spraying stopping signal when stopping the sprayingof saline water; using image capturing equipment which is arranged inside the patient ear and used for performing real-time image data acquisition to the interior of the patient ear, so as to acquireand output the interior image of the patient ear; using SD storage equipment which is connected with mode selection equipment and used for storing preset resolution threshold in advance; and using the mode selection equipment.

The invention discloses an application home page loading method and device, equipment and a storage medium, and belongs to the technical field of the Internet. The method comprises the steps: receiving a home page picture downloading request sent by a client for a target application, wherein the home page picture downloading request comprises a home page picture size matched with a display screenof the client and the resolution of the display screen of the client; if the resolution is smaller than a preset resolution threshold value, compressing the standard home page picture of the target application according to a preset compression ratio, cutting the compressed standard home page picture according to the home page picture size, and obtaining a target home page picture based on the cutting processing; and sending the target home page picture to the client, wherein the target home page picture is used for the client to display after the screen opening interface is switched to the home page. According to the technical scheme provided by the embodiment of the invention, the loading speed of the home page of the application can be ensured under the condition of poor network environment.

The invention relates to the technical field of detection of a moving target in a low-quality video, and especially puts forward a video foreground detection method by use of a VIBE (Visual Background Extractor) law. According to the method, a VIBE model is adopted, the R value is expressed in Rn, the value of Rn is related to the human eye resolution threshold and the jitter noise inhibition threshold H(noise) in an interval, and the relation is Rn=k*delta s(n)+H(noise), wherein n is the grey value [0, 255], k is a gray threshold system [2, 4], and H(noise) is the gray value jitter noise threshold in each gray interval. According to the invention, improvement is made based on the shortcomings of a VIBE model method, and a video foreground detection method which enables a background image to be generated and increases the ability to distinguish close gray scales is put forward.

The invention discloses a construction method, system and device of a surface scratch detection neural network and a medium. The method comprises the steps of obtaining image data with scratches on the surface of an object, and screening the image data based on a preset resolution threshold to obtain a scratch image sample; constructing a basic neural network through a feature extraction module, asegmentation network module and a decision network module; and finally, training the basic neural network through the scratch image sample to obtain a surface scratch detection neural network. The system comprises an acquisition unit, a screening unit, a construction unit and a training unit. By using the method provided by the invention, an object image with a scratch defect is identified, and training of a small number of samples and high-precision detection are realized while the network complexity is low. The method can be widely applied to the technical field of image recognition.

The invention relates to a background light adjustment method based on pupil radius detection. The method comprises steps: a background light adjustment device is used to be arranged on an integratedcircuit board of a tablet personal computer for adjusting the background light brightness of a display screen of the tablet personal computer; a data acquisition device is used to be arranged in a front frame of the tablet personal computer for photographing an image in front of the tablet personal computer under operation of a user and also regularly photographing a facial image of the user underno operation of the user; a resolution analysis device is used to be connected with the data acquisition device for receiving the facial image and acquiring the current resolution of the facial imageas an image resolution to be outputted; and a mode control device is used to be connected with the resolution analysis device for selecting a coarse mode enhancement device to carry out correspondingimage enhancement processing on the facial image to acquire a target enhancement image when the image resolution is smaller than or equal to a preset resolution threshold.

The invention discloses a coding method and device, electronic equipment and a computer readable storage medium. The coding method comprises: judging whether the resolution of a screen capture image is larger than a preset resolution threshold value or not; if not, up-sampling the screen capture image to a preset multiple by using an up-sampling algorithm, and converting the up-sampled screen capture image into a YUV420 format; if yes, switching the screen capture image to a YUV444 format or a YUV420 format according to a dynamic switching strategy; and performing YUV420 coding or YUV444 coding on the screen capture image by using a YUV420 format or a YUV444 format. According to the method, the YUV444 format or the YUV420 format suitable for the screen capture image, namely the screen content, is used for encoding, the definition of the image is improved, the phenomenon that the image quality is blurred due to the fact that the encoding effect on the screen content of the screen capture image is poor in the related technology is avoided, and the overall performance of the image is improved to the maximum extent.

The invention discloses a method for displaying a web page, comprising the following steps of: receiving resolution information of display equipment so as to determine the resolution of the display equipment; receiving a resolution threshold of a displayed small component element in the web page; judging whether the resolution of the display equipment is less than the resolution threshold of the displayed small component element; and if the resolution of the display equipment is not less than the resolution threshold of the displayed small component element, not displaying the corresponding small component element. By using the method disclosed by the invention, the web page of which the page content can be automatically clipped according to the actual resolution can be created. The method for displaying the web page can solve the problem of how to display the web page under different resolutions and is also capable of reducing time and workload of developing the web page.

The embodiment of the invention provides a video playing method, a device, a storage medium and a computer program product. The method comprises the steps of judging whether a current playing mode of a target video is a full-screen playing mode or not; if it is determined that the current playing mode of the target video is a non-full-screen playing mode, the target video is loaded at a first preset resolution, so that the target video is played at the first preset resolution, and the first preset resolution is lower than a preset resolution threshold. According to the embodiment of the invention, the target video is loaded and played at the relatively low first preset resolution in the non-full-screen playing mode, so that the bandwidth cost can be reduced to a certain extent, the traffic consumption can be reduced, the problems of relatively long first frame and high lagging rate caused by high-resolution playing in the non-full-screen playing mode can be reduced. The video watching experience of the user is improved.

The embodiment of the invention discloses an equipment parameter adjustment method and device, equipment and a storage medium. The method comprises the steps that acquiring the actual resolution of acurrently played video; obtaining an initial output resolution of the video playing device, and matching the actual resolution with the initial output resolution when the initial output resolution isnot less than a preset resolution threshold; and if the actual resolution is smaller than the initial output resolution, adjusting the initial output resolution to a target output resolution to starta preset additional function of the video playing device, the value of the target output resolution being not greater than the value of the actual resolution. According to the method provided by the embodiment of the invention, the high-definition output resolution is set for a user; and when the current playing video is the non-high-resolution video and the current playing video is the non-high-resolution video, the value of the output resolution of the video playing equipment is adjusted, so that the additional function can be used when a user sets the high output resolution but the video resource is the non-high-resolution resource, and the user experience is further improved.

This disclosure describes techniques for fabricating a high-resolution, non-cytotoxic and transparent microfluidic device. A material can be selected based on having an optical property with a predetermined degree of transparency to provide viewability of a biological sample through the microfluidic device and a level of cytotoxicity within a predetermined threshold to provide viability of the biological sample within the microfluidic device. An additive manufacturing technique can be selected from a plurality of additive manufacturing techniques for fabricating the microfluidic device based on the selected material to provide a resolution of dimensions of one or more channels of the microfluidic device higher than a predetermined resolution threshold.

The embodiments of the present invention relate to a method for adjusting backlight brightness and a terminal. The method comprises: acquiring a parameter of an image, wherein the parameter comprises one or more of an image change rate, a chrominance ratio, a spatial resolution and image brightness; according to the parameter of the image and a pre-set parameter threshold value, determining the speed for adjusting backlight brightness of a display device, wherein the pre-set parameter threshold value corresponds to the parameter of the image and comprises one or more of an image change rate threshold value, a chrominance ratio threshold value, a spatial resolution threshold value and an image brightness threshold value; by acquiring the parameter of the image, determining the speed for adjusting the backlight brightness of the image according to the parameter of the image; and according to a luminance value of an external environment and the parameter of the image, determining a target brightness where the backlight brightness of the display device is to be adjusted, and according to the determined adjustment speed, adjusting the backlight brightness of the image to the target brightness. By means of a suitable adjustment speed, a user can be prevented from seeing a backlight flicker, and at the same time, the best display effect of an image can be achieved.