19results about How to "Reduce flicker" patented technology

The invention relates to the field of network live broadcast, and discloses a live broadcast stream image segmentation method and device, equipment and a medium, and the method comprises the steps: sequentially calling image frames from an image sequence of a live broadcast stream as current image frames; a depth estimation segmentation model is called, a segmented figure mask corresponding to the figure image is determined based on the current image frame, and the depth estimation segmentation model is supervised and trained by using scene depth information; performing inter-frame smoothing processing on the segmented figure mask of the current image frame by using the practical figure mask iteration of the historical image frame to obtain a practical figure mask of the current image frame; and determining a figure image in the current image frame according to the practical figure mask of the current image frame. By fusing the depth information and the inter-frame smoothing technology, real-time, accurate and stable live broadcast stream image segmentation is realized, the live broadcast watching experience is improved, and the industry technology progress is promoted.

A light-emitting diode display device is proposed. The light-emitting diode display device includes a plurality of display pixels and a driving circuit. The display pixels of the Nth level perform data writing according to a corresponding first gate driving signal, and light up the corresponding light-emitting diode according to an Nth level ramp control signal and an Nth level laser signal, wherein the first gate driving signal has a first operating frequency, and the Nth level ramp control signal and the Nth level laser signal have a second operating frequency, wherein the first operating frequency is lower than the second operating frequency, and N is a positive integer; the driving circuit is coupled to the display pixels to provide the first gate driving signal, the Nth level ramp control signal, and the Nth level laser signal.

The present application provides a liquid crystal composition and a liquid crystal display device thereof. The liquid crystal composition of the present application comprises at least one compound of general formula P, at least one compound of general formula B and at least one compound of general formula C. The liquid crystal composition of the present application has good optical anisotropy, comparable clearing point, good absolute value of dielectric anisotropy, high K value (K 11 , K 33 ), comparable rotational viscosity, short response time, high transmittance, high contrast, long low-temperature storage time and large absolute value of Flicker, so that the liquid crystal display device comprising the same has good contrast, wide temperature range of use, good transmittance and less flicker and good screen display effect.

Disclosed are a display apparatus and a driving method thereof. The display apparatus includes a display panel configured to display an image, a driver configured to drive the display panel, a controller configured to control the driver, and a duty cycle controller configured to define an unknown area and a known area within one frame when a driving frequency of the display panel is changed, and to change a duty cycle for driving the known area, wherein vertical resolution information is unknown in the unknown area and the vertical resolution information is known in the known area.

The present invention provides a method for compressing the dynamic range of an infrared image, comprising: obtaining a high dynamic range infrared image I output by an infrared detector; src ; Use platform histogram equalization algorithm to process infrared image I src Perform first-level compression to obtain the first-level mapped histogram image I0 dst ; Based on linear dynamic compression algorithm and histogram mapping image I0 dst Perform secondary compression to obtain the secondary mapped histogram image I dst The infrared image obtained by the present invention contains richer information, has higher local contrast, and gives people a better visual experience.

A dynamic control system and an operation method thereof are disclosed. The dynamic control system includes a timing control module, a compensation module and a gain module. The timing control module is configured to provide a timing control signal according to an operating frequency of a display device. The compensation module is coupled to the timing control module and configured to receive an input signal and the timing control signal, and output a compensated signal according to the timing control signal. The gain module is coupled to the compensation module and the timing control module, and configured to receive the compensated signal and the timing control signal, and output an output signal according to the timing control signal.

This application provides a 3D Gaussian rendering optimization system and method based on CPU hierarchical splitting and GPU driving, relating to the field of 3D graphics rendering technology. This application divides the 3D Gaussian scene into multiple bounding boxes on the CPU side, determines the view distance level, protection level, and reconstruction cost level of each bounding box, and uses the highest of these three levels as the lower limit of the target level. The scheduling module adjusts the current rendering level frame by frame, determining the summary state, partial unfolding mode, or unfolded state based on screen error and GPU budget. On the GPU side, representative Gaussian points and unfolded 3D Gaussian points are uniformly sorted and rendered, and the frame rate and the total number of activated 3D Gaussian points are fed back. This reduces the amount of data submitted, takes into account the protection of key areas, achieves smooth hierarchical transitions, and forms a rendering feedback loop, improving the frame rate stability and resource utilization of real-time rendering.

The present invention provides a video processing method, device and electronic device, and relates to the field of digital image processing technology. The method comprises: obtaining an original video and a style image; inputting the original video and the style image into a stylized model, wherein the stylized model comprises a first encoder, a second encoder and a decoder; obtaining content features of the original video through the first encoder; obtaining style features of the style image based on the second encoder; inputting content features and style features into a decoder, obtaining stylized features output by the decoder, determining a target video through the stylized features, and the target video and the style image have a unified style. The present invention can improve the continuity of video stylization.

The invention is entitled "Electronic device with low refresh rate display pixels." A display is disclosed that can have an array of organic light emitting diode display pixels that operate at low refresh rates. Each display pixel can have six thin film transistors and a capacitor. One of the six transistors can be used as a drive transistor and the remaining five transistors and capacitor can be used for compensation. One or more bias stress operations can be applied prior to threshold voltage sampling to mitigate first frame dimming. Multiple anode reset and bias stress operations can be inserted during a vertical blanking period to reduce flicker and maintain balance and can also be inserted between successive data refreshes to improve first frame performance. Two different emission signals that control each pixel can be toggled back and forth using a pulse width modulation scheme to help provide a darker black level.

The invention discloses a charging and discharging protection circuit, a lithium battery pack management system and a lithium battery pack, the charging and discharging protection circuit is applied to a lithium battery protection board, the charging and discharging protection circuit comprises a protection module, the protection module is connected in parallel with a charging MOS tube Q1, one end of the protection module is used for connecting an electric load and a generator, and the other end of the electric load and the other end of the generator are connected with the positive electrode of a lithium battery; the other end of the protection module is connected with the negative electrode of the lithium battery through a discharge MOS tube Q2; the protection module comprises a farad capacitor C100, and the farad capacitor C100 is connected in parallel with the charging MOS tube Q1; when the lithium battery is fully charged, the charging MOS tube Q1 is turned off, the farad capacitor C100 is connected with the lithium battery in series to form a new battery pack, and the new battery pack is connected with the generator in parallel to stabilize the output voltage of the generator. The output voltage of the generator is stabilized, and voltage fluctuation caused by suspension of the generator after the lithium battery is fully charged is prevented.

The present disclosure provides a display apparatus and a gamma unit for a display panel. The display apparatus includes a gamma unit including a gamma reference voltage generator generating a plurality of gamma reference voltages and a gamma voltage generator generating a gamma voltage based on the gamma reference voltages, a data driver generating a data voltage based on the gamma voltage, and a display panel electrically connected to the data driver. The gamma reference voltage generator includes a first gamma reference voltage generator generating a first gamma reference voltage based on external power and a second gamma reference voltage generator generating a second gamma reference voltage based on a feedback voltage from a high potential power voltage of the display panel. Accordingly, the plurality of gamma reference voltages can vary according to characteristics of an image to be used.

A microwave filter includes a superconductor-insulator transition (SIT) layer including a material exhibiting a superconductor-insulator transition associated with a superconducting energy gap frequency. For a signal transmitted through the layer, the microwave filter is a low-pass filter having a cutoff frequency twice the superconducting gap frequency.

An induction heater and a rice cooker. The induction heater includes a heating coil, an inverter circuit, and a control circuit. The inverter circuit generates and outputs power supplied to the heating coil from the power supply circuit. The control circuit causes the inverter circuit to repeatedly output the power supply at a period T, which includes a conduction period Ton during which the power supply is output and a non-conducting period Toff during which the power supply is not output, thereby adjusting the effective value of the power supply. From the time the indicated value of the power supply is set to the target value (P2) of the power supply during the conduction period Ton until the end of the conduction period Ton, the control circuit performs a decreasing process, either by gradually decreasing the indicated value or the slope of the time change of the indicated value, or by continuously decreasing the indicated value.

The application discloses a residual attribute prompt driven detection and incremental learning method for unknown scattering objects, aiming to solve the problems of missing detection, false detection and lack of self-learning ability of existing inspection on training set outside scattering objects. When the inspection vehicle or unmanned aerial vehicle enters the working area, start the visible light camera to collect real-time video stream; use the context residual learning module to detect the abnormal area of the video image, generate the residual energy graph to locate the potential unknown scattering object; based on the shape, texture and reflectivity statistics of the candidate frame area, construct the attribute vector and automatically generate the descriptive semantic prompt word, the prompt and the preset word library are fused through the gate weight to drive the open visual-linguistic segmentation, output the boundary information and semantic label of the scattering object; through the adaptive incremental learning module, the new detection sample is updated and knowledge playback with few samples, realizing the dynamic expansion and continuous evolution of the knowledge base. The application realizes the discovery of unknown targets through residual detection, completes semantic recognition and boundary extraction through open segmentation, and continuously expands the detection category through adaptive incremental learning, constructs a 'discovery-recognition-learning' closed loop mechanism, thereby significantly improving the processing ability of road inspection on unknown scattering objects in complex environment.

The invention discloses a high-brightness electrowetting driving method and device and a storage medium, and the method comprises the following steps: providing a DC driving signal for conductive liquid at a first voltage value to eliminate or capture charges in a hydrophobic insulating layer, the first voltage value being smaller than a display voltage; providing a driving signal to the conductive liquid at a second voltage value, wherein the second voltage value is gradually increased along the rising function; an alternating current driving signal is provided for the conductive liquid with the third voltage value as the amplitude so as to reduce the backflow condition of the ink, and the third voltage value is determined by the peak value of the second voltage value. The driving voltage is adjusted at different stages, charges on the hydrophobic insulating layer are effectively eliminated or captured, ink splitting is inhibited, the electrowetting brightness is improved, the electrowetting response time is shortened, and the flicker phenomenon of the high-brightness electrowetting display system is reduced.

The invention discloses an infrared image detail enhancement method based on a video stream, and the method comprises the steps: superposing an infrared original image in the video stream to obtain an original image data matrix, carrying out the bilateral filtering and extreme value extraction of the original image data matrix, carrying out the smoothing processing through combining with a historical frame average parameter, and obtaining a parameter enhanced image; and inputting the original image data matrix and the original image data matrix after bilateral filtering into a detail enhancement module for enhancement, carrying out smoothing processing in combination with a historical frame average parameter after extreme value extraction to obtain a parameter enhanced image, and finally, carrying out linear superposition on the parameter enhanced image to obtain an enhanced infrared original image. According to the method, optimization design is carried out on the basis of a single-frame infrared image detail enhancement algorithm, and compared with a single-frame infrared image enhancement algorithm, the enhancement algorithm based on the video stream needs to pay attention to the input image difference between frames and the influence of the difference on the enhanced video stream under the algorithm framework of the enhancement algorithm based on the video stream.

The invention provides a video time sequence consistency restoration method based on residual guided diffusion and cross-frame attention distillation, and relates to the technical field of video image restoration. The method comprises the following steps: constructing a degeneration-clear frame pair data set, and a teacher network and a student network containing a coding-decoding diffusion denoising backbone network; generating a noise-added image sequence; performing residual scale modulation through a residual scale prediction module to obtain a first restored feature sequence, and performing cross-frame attention fusion to obtain a second restored feature sequence; respectively outputting a teacher recovery result sequence and a student recovery result sequence; and constructing a total loss function containing reconstruction loss, distillation loss and time consistency loss in combination with the degradation-clear frame pair and the two types of restoration results, iteratively optimizing the student network, and restoring the video to be restored to obtain a target restored video sequence. According to the method, the ubiquitous problems that residual error utilization is not adaptive, time sequence modeling is insufficient and distillation lacks structure maintenance in an existing video restoration method are solved.