Abstract: An output driving circuit for power devices includes an output stage module comprising a high-side PMOS and a low-side NMOS power transistors, the high-side PMOS power transistor having its source connected to a power supply through a resistor electrically connected in series between the PMOS power transistor and the power supply, having its drain electrically connected to drain of the low-side NMOS power transistor, and source of the NMOS power transistor connected to ground. A first inverter electrically connected to gate of the high-side PMOS power transistor to drive the high-side PMOS power transistor, and a second inverter electrically connected to gate of the low-side NMOS power transistor to drive the low-side NMOS power transistor. A voltage control signal is input from input terminals of the first and the inverters, used to respectively control turn-on and turn-off states of the high-side PMOS power transistor and the low-side NMOS power transistor.

Abstract: This disclosure provides an image processing method, an electronic device and a non-transitory computer-readable storage medium, and relates to the field of image processing technique. The image processing method and apparatus and the electronic device provided by this application perform denoising on the to-be-processed image to obtain a denoised image, and then perform detail enhancement on the target area image extracted from the denoised image to obtain a detail enhanced image, thereafter fuse the denoised image with the detail enhanced image to obtain an output image. Since detail enhancement has been performed on the target area image, the obtained output image is sharper and the display effect is better.

Abstract: This disclosure provides an image processing method, an electronic device and a non-transitory computer-readable storage medium, and relates to the field of image processing technique. The image processing method and apparatus and the electronic device provided by this application perform denoising on the to-be-processed image to obtain a denoised image, and then perform detail enhancement on the target area image extracted from the denoised image to obtain a detail enhanced image, thereafter fuse the denoised image with the detail enhanced image to obtain an output image. Since detail enhancement has been performed on the target area image, the obtained output image is sharper and the display effect is better.

Abstract: In one embodiment of the present invention, a quality trainer and quality calculator collaborate to establish a consistent perceptual quality metric via machine learning. In a training phase, the quality trainer leverages machine intelligence techniques to create a perceptual quality model that combines objective metrics to optimally track a subjective metric assigned during viewings of training videos. Subsequently, the quality calculator applies the perceptual quality model to values for the objective metrics for a target video, thereby generating a perceptual quality score for the target video. In this fashion, the perceptual quality model judiciously fuses the objective metrics for the target video based on the visual feedback processed during the training phase. Since the contribution of each objective metric to the perceptual quality score is determined based on empirical data, the perceptual quality score is a more accurate assessment of observed video quality than conventional objective metrics.

Abstract: In one embodiment of the present invention, a quality trainer and quality calculator collaborate to establish a consistent perceptual quality metric via machine learning. In a training phase, the quality trainer leverages machine intelligence techniques to create a perceptual quality model that combines objective metrics to optimally track a subjective metric assigned during viewings of training videos. Subsequently, the quality calculator applies the perceptual quality model to values for the objective metrics for a target video, thereby generating a perceptual quality score for the target video. In this fashion, the perceptual quality model judiciously fuses the objective metrics for the target video based on the visual feedback processed during the training phase. Since the contribution of each objective metric to the perceptual quality score is determined based on empirical data, the perceptual quality score is a more accurate assessment of observed video quality than conventional objective metrics.

Abstract: A flyback converter with adjustable frequency curve includes a primary winding configured to receive an input voltage, a secondary winding coupled to the primary winding to generate an output DC voltage, a feedback circuit configured to receive the output DC signal and generate a feedback signal, a multi-mode control circuit, an auxiliary winding configured to provide power for operating the multi-mode control circuit, an exterior adjustable circuit connected between the auxiliary winding and the multi-mode controller for adjusting the input voltage level of the input feedthrough of the multi-mode control circuit, wherein the multi-mode control circuit configured to generate a switch control signal based on the information associated with the adjusted input signal through the input feedthrough of the multi-mode control circuit and the feedback signal, and a switching device configured to receive the switch control signal and change a current flowing through the primary winding.

Abstract: A flyback converter with adjustable frequency curve includes a primary winding configured to receive an input voltage, a secondary winding coupled to the primary winding to generate an output DC voltage, a feedback circuit configured to receive the output DC signal and generate a feedback signal, a multi-mode control circuit, an auxiliary winding configured to provide power for operating the multi-mode control circuit, an exterior adjustable circuit connected between the auxiliary winding and the multi-mode controller for adjusting the input voltage level of the input feedthrough of the multi-mode control circuit, wherein the multi-mode control circuit configured to generate a switch control signal based on the information associated with the adjusted input signal through the input feedthrough of the multi-mode control circuit and the feedback signal, and a switching device configured to receive the switch control signal and change a current flowing through the primary winding.

Abstract: A flyback converter with a secondary side control includes a transformer having a primary winding and a secondary winding, a rectifier switching device in the secondary side configured to provide a rectifier path and a switching path, a secondary side control circuit configured to detect the output voltage or current value and to control the states of the rectifier switching device according to the variations between the pre-set voltage or current value and the output voltage or current value, a primary side switching device in the primary side configured to switch between on and off states, an auxiliary winding coupled to the secondary winding for providing power and detecting the states of the secondary side rectifier switching device, and a primary control circuit configured to control the primary side switching device based on the detected output state of the secondary winding from the auxiliary winding.

Abstract: In one embodiment of the present invention, a quality trainer and quality calculator collaborate to establish a consistent perceptual quality metric via machine learning. In a training phase, the quality trainer leverages machine intelligence techniques to create a perceptual quality model that combines objective metrics to optimally track a subjective metric assigned during viewings of training videos. Subsequently, the quality calculator applies the perceptual quality model to values for the objective metrics for a target video, thereby generating a perceptual quality score for the target video. In this fashion, the perceptual quality model judiciously fuses the objective metrics for the target video based on the visual feedback processed during the training phase. Since the contribution of each objective metric to the perceptual quality score is determined based on empirical data, the perceptual quality score is a more accurate assessment of observed video quality than conventional objective metrics.

Abstract: In one embodiment of the present invention, a quality trainer and quality calculator collaborate to establish a consistent perceptual quality metric via machine learning. In a training phase, the quality trainer leverages machine intelligence techniques to create a perceptual quality model that combines objective metrics to optimally track a subjective metric assigned during viewings of training videos. Subsequently, the quality calculator applies the perceptual quality model to values for the objective metrics for a target video, thereby generating a perceptual quality score for the target video. In this fashion, the perceptual quality model judiciously fuses the objective metrics for the target video based on the visual feedback processed during the training phase. Since the contribution of each objective metric to the perceptual quality score is determined based on empirical data, the perceptual quality score is a more accurate assessment of observed video quality than conventional objective metrics.

Abstract: In one embodiment of the present invention, a quality trainer and quality calculator collaborate to establish a consistent perceptual quality metric via machine learning. In a training phase, the quality trainer leverages machine intelligence techniques to create a perceptual quality model that combines objective metrics to optimally track a subjective metric assigned during viewings of training videos. Subsequently, the quality calculator applies the perceptual quality model to values for the objective metrics for a target video, thereby generating a perceptual quality score for the target video. In this fashion, the perceptual quality model judiciously fuses the objective metrics for the target video based on the visual feedback processed during the training phase. Since the contribution of each objective metric to the perceptual quality score is determined based on empirical data, the perceptual quality score is a more accurate assessment of observed video quality than conventional objective metrics.

Abstract: A imaging system and method is disclosed. In one aspect, the system includes a first edge-detecting module configured to detect edge coordinates in the first image, a first disparity-estimating module configured to obtain a first estimated disparity map of the first image relative to the second image, and a first edge-refining module configured to refine edge coordinates in the first estimated disparity map using the edge coordinates in the first image to obtain a first refined disparity map. The imaging system and method improve the quality of a disparity map and control the complexity of stereo-matching.

Abstract: An imaging system and method are disclosed. In one aspect, the system includes an edge-detecting module detecting edge coordinates in a first image; first and second disparity-estimating modules respectively configured to obtain a first and second estimated disparity map, a cross-checking module configured to cross check the first estimated disparity map using the second estimated disparity map to identify occlusion pixels in the first estimated disparity map, an occlusion-refining module configured to refine the occlusion pixels by identifying at least a pixel under refinement on the first estimated disparity map as occluded based on the number of occlusion pixels in a refining base region, and a hole-filling module configured to fill the refined set of occlusion pixels. The imaging system improves the quality of a disparity map and controls the complexity of stereo-matching.

Abstract: An audio playback positioning method. A processor retrieves audio data from a memory, divides a progress bar showing playback time of the audio data into segments, utilizes a length of a progress bar segment as a unit to perform playback skipping on the audio data, and retrieves an audio data segment through the skipping. The processor further divides a progress bar segment corresponding to the retrieved audio data segment into sub-segments in response to input operations, and utilizes the length of a sub-segment as a unit to perform playback skipping on the retrieved audio data segment to retrieve and perform playback operation on a target position thereon.

Abstract: A imaging system and method is disclosed. In one aspect, the system includes a first edge-detecting module configured to detect edge coordinates in the first image, a first disparity-estimating module configured to obtain a first estimated disparity map of the first image relative to the second image, and a first edge-refining module configured to refine edge coordinates in the first estimated disparity map using the edge coordinates in the first image to obtain a first refined disparity map. The imaging system and method improve the quality of a disparity map and control the complexity of stereo-matching.

Abstract: An imaging system and method are disclosed. In one aspect, the system includes an edge-detecting module detecting edge coordinates in a first image; first and second disparity-estimating modules respectively configured to obtain a first and second estimated disparity map, a cross-checking module configured to cross check the first estimated disparity map using the second estimated disparity map to identify occlusion pixels in the first estimated disparity map, an occlusion-refining module configured to refine the occlusion pixels by identifying at least a pixel under refinement on the first estimated disparity map as occluded based on the number of occlusion pixels in a refining base region, and a hole-filling module configured to fill the refined set of occlusion pixels. The imaging system improves the quality of a disparity map and controls the complexity of stereo-matching.

Abstract: The present invention discloses a safety capacitor discharging method for AC-to-DC converters, wherein the AC-to-DC converters have a safety capacitor connected between two line voltages, the method comprising the steps of: detecting at least one line voltage to generate a line-off signal, wherein the line-off signal is at a first state when the peak voltage of the at least one line voltage is above a reference voltage, and the line-off signal is at a second state when the peak voltage of the at least one line voltage is below the reference voltage; and performing discharge of the safety capacitor by generating a conduction path between two plates of the safety capacitor when the line-off signal is at the second state. The present invention also provides a safety capacitor discharging apparatus for AC-to-DC converters.

Abstract: A current-level controlling device for a power supply includes a reception end for receiving a current sense signal, a reference voltage generator for generating a reference voltage, an adaptive reference voltage generator, coupled to the reference voltage generator and the reception end, for adjusting the reference voltage according to variation of peak values of the current sense signal, so as to generate an adaptive reference voltage, a comparator, coupled to the reception end and the adaptive reference voltage generator, for comparing the current sense signal and the adaptive reference voltage, to generate a comparison result, and a control unit, coupled to the comparator, for controlling a switch transistor of the power supply according to the comparison result.

Abstract: The present invention relates to a digitally controlled switched-mode power supply, wherein a switched-mode power supply is provided with a control circuit, which comprises a signal amplifier unit able to receive digital signals or analog signals and a switching controller able to receive the signals. The switching controller uses the signals to produce a clock signal, after which the clock signal is output, whereupon the signal amplifier unit feeds a signal back to control the switching controller. The signal amplifier unit is provided with at least one amplifier element, and when the amplifier element receives a digital signal or analog signal, then the signal is transmitted to the switching controller. Accordingly, the control circuit achieves the effectiveness to not only receive and transmit digital signals, but also receive and transmit analog signals, and is thus provided with the advantage of enormous flexibility.

Abstract: The present invention discloses a minimum on-time reduction method for a switching power conversion, comprising the steps of: generating a first reset signal and an over-supply pulse signal according to a current sensing signal and a reference signal; generating a blanking signal according to a count number of the over-supply pulse signal; and generating a second reset signal by performing Logic-AND operation on the first reset signal and the blanking signal. Furthermore, the present invention also provides a minimum on-time reduction apparatus for a power conversion, and a system using the minimum on-time reduction apparatus for a power conversion.