Abstract: Disclosed are an image processing method and an image processing apparatus. An original image including a plurality of pixels is obtained. The plurality of pixels include a first pixel. N target pixel coordinates are recorded. The N target pixel coordinates form M target coordinate sets. M and N are integers greater than 0. The first pixel is associated with a first target coordinate set among the M target coordinate sets by utilizing a first classification method according to an original pixel coordinate of the first pixel. The first pixel is mapped to one of the N target pixel coordinates in the first target coordinate set by utilizing a second classification method. The original pixel coordinate of the first pixel is replaced with one of the N target pixel coordinates to convert the original image into an adjusted image.

Abstract: A noise reduction signal generator is provided. The noise reduction signal generator includes a comparator, a conversion circuit, and a low pass filter circuit. The comparator receives an input signal and a reference signal and compares the input signal and the reference signal to generate a first pulse width modulation (PWM) signal. A pulse width of the first PWM signal is correlated to a comparison result between a signal intensity of the input signal and a signal intensity of the reference signal. The conversion circuit converts the first PWM signal to a second PWM signal. A phase of the second PWM signal is different from a phase of the first PWM signal. The low pass filter circuit performs a filtering operation on the second PWM signal to generate a noise inversion signal. The noise inversion signal is configured to reduce noise of the input signal.

Abstract: A multi-task deep learning network and a generation method thereof are provided. The generation method of a multi-task deep learning network includes: building at least one shared layer, where the shared layer is configured to receive a plurality of pieces of input information and generate a plurality of pieces of processed feature information; building a plurality of groups of task-specific layers, wherein the groups of task-specific layers compute and generate a plurality of groups of output information corresponding to a plurality of different tasks according to the pieces of processed feature information; and activating at least one of the groups of task-specific layers in stages according to a power supply state of an electronic apparatus.

Abstract: Disclosed is an image dehazing method, including: obtaining a second dark channel map corresponding to a target image based on a first dark channel value corresponding to each pixel in the target image; obtaining an atmospheric light value; obtaining a haze intensity value; obtaining a dehazing intensity correction value based on the haze intensity value, a first dark channel value corresponding to each pixel in a first dark channel map, or a brightness value corresponding to each pixel in the target image; obtaining an estimated value of a transmittance based on the dehazing intensity correction value, a second dark channel value corresponding to each pixel in the second dark channel map, and the atmospheric light value; and obtaining an estimated dehazed image based on the estimated value of the transmittance, the target image and the atmospheric light value. Therefore, the generation of the halo effect can be avoided.

Abstract: A video decoding and display system and a memory accessing method thereof are provided. The video decoding and display system includes a plurality of memories, a plurality of display processing cores, a plurality of decoding processing cores, and a mapping circuit. The memories are configured to record a plurality of frame segments of a vide frame. The decoding processing cores decode the frame segments in parallel. The mapping circuit is coupled between the decoding processing cores and the memories. Each of the memories correspondingly records one of the frame segments. Each of the display processing cores correspondingly accesses one of the memories. Each of the decoding processing cores accesses the memories through the mapping circuit, and the decoding processing cores access one of the memories in order.

Abstract: Disclosed is a method for reducing residual echo including: performing an echo cancellation process on a voice input signal according to an echo reference signal to obtain an echo cancellation signal; performing a FFT on the echo reference signal to obtain a reference spectrum signal for each frame; performing the FFT on the echo cancellation signal to obtain a speech spectrum signal for each frame; using the reference spectrum signal and the speech spectrum signal of a current frame to obtain a priori signal-to-noise ratio of the current frame according to a principle of additive noise; filtering the speech spectrum signal of the current frame by a Wiener filter coefficient of the current frame determined by the priori signal-to-noise ratio of the current frame to obtain a target spectrum signal of each frame; performing an IFFT on the target spectrum signal of each frame to obtain a target voice signal.

Abstract: Provided is a layout structure adapted for a signal format converter. The layout structure includes a first and a second capacitor array. The first capacitor array is disposed on one side of a reference axis, and includes multiple first capacitor units that form multiple first capacitors. The first capacitors respectively have multiple first capacitances. The second capacitor array is disposed on the other side of the reference axis, and includes multiple second capacitor units that form multiple second capacitors. The second capacitors respectively have multiple second capacitances. The first capacitors respectively correspond to the second capacitors. Each first capacitor and each corresponding second capacitor are symmetrical with respect to the reference axis, or each first capacitor and each corresponding second capacitor are separated from each other by the same distance. Each first capacitor and each corresponding second capacitor have the same capacitance.

Abstract: A noise reduction signal generator is provided. The noise reduction signal generator includes a comparator, a conversion circuit, and a low pass filter circuit. The comparator receives an input signal and a reference signal and compares the input signal and the reference signal to generate a first pulse width modulation (PWM) signal. A pulse width of the first PWM signal is correlated to a comparison result between a signal intensity of the input signal and a signal intensity of the reference signal. The conversion circuit converts the first PWM signal to a second PWM signal. A phase of the second PWM signal is different from a phase of the first PWM signal. The low pass filter circuit performs a filtering operation on the second PWM signal to generate a noise inversion signal. The noise inversion signal is configured to reduce noise of the input signal.

Abstract: Disclosed are a display control module and a display control method of a display device. The display control module includes a control signal generation module and a plurality of IP core modules. The control signal generation module shields an initial frame control signal based on an enabled underrun signal to generate a frame control signal which is disabled. The plurality of IP core modules are coupled to the control signal generation module, receive the frame control signal, and perform image processing on image data of the same frame based on the frame control signal, so as to generate display image data corresponding thereto. Therefore, when the display device displays abnormally, the plurality of IP core modules continue to perform image processing on a current frame based on the frame control signal.

Abstract: Disclosed is an electrostatic discharge protection device, which includes a first-type semiconductor substrate, a first diode including a first first-type well and a first second-type well, a second diode including a second first-type well and a second second-type well, a first isolation structure and a second isolation structure. An upper surface of the first-type semiconductor substrate includes a first region where the first diode is formed, a second region where the second diode is formed and a third region located between the first region and the second region. The first isolation structure is formed on the third region to isolate the first diode from the second diode. The first first-type well is electrically connected to the second second-type well through a metal wire above the first isolation structure. The second isolation structure is located under the first first-type well to isolate the first first-type well from the first region.

Abstract: Disclosed are an image processing method and an image processing apparatus. An original image including a plurality of pixels is obtained. The plurality of pixels include a first pixel. N target pixel coordinates are recorded. The N target pixel coordinates form M target coordinate sets. M and N are integers greater than 0. The first pixel is associated with a first target coordinate set among the M target coordinate sets by utilizing a first classification method according to an original pixel coordinate of the first pixel. The first pixel is mapped to one of the N target pixel coordinates in the first target coordinate set by utilizing a second classification method. The original pixel coordinate of the first pixel is replaced with one of the N target pixel coordinates to convert the original image into an adjusted image.

Abstract: An automatic battery replacement apparatus, a moving platform, and a rechargeable battery are provided. The moving platform includes a movable carrier and the rechargeable battery assembled in the movable carrier. The movable carrier includes a carrying body and a moving component that is assembled to the carrying body. The carrying body has a power supply slot recessed in an outer surface thereof, and an inner lateral wall of the power supply slot is in a shape of an arc having a central angle that is less than or equal to 180 degrees. The moving component is configured to move on a working surface. The rechargeable battery has a matching structure configured to be engaged with a driving gear. The rechargeable battery is configured to be rotated along the inner lateral wall of the power supply slot by having the matching structure engaged with the driving gear.

Abstract: A projection device and a keystone correction method thereof are provided. The keystone correction method is adapted for the projection device and includes the following steps. A first image is obtained. A first line-taking position parameter is determined according to a ratio of a first target edge length to a second target edge length. At least one line of input pixels disposed in a first direction is retrieved from the first image according to the first line-taking position parameter. A first scaling process related to the first direction is performed according to at least one line of input pixels of the first image, such that a line of output pixels of a second image disposed in the first direction is generated. The projection device projects the second image onto a projection screen to display a rectangular projected image.

Abstract: Disclosed is an image dehazing method, including: obtaining a second dark channel map corresponding to a target image based on a first dark channel value corresponding to each pixel in the target image; obtaining an atmospheric light value; obtaining a haze intensity value; obtaining a dehazing intensity correction value based on the haze intensity value, a first dark channel value corresponding to each pixel in a first dark channel map, or a brightness value corresponding to each pixel in the target image; obtaining an estimated value of a transmittance based on the dehazing intensity correction value, a second dark channel value corresponding to each pixel in the second dark channel map, and the atmospheric light value; and obtaining an estimated dehazed image based on the estimated value of the transmittance, the target image and the atmospheric light value. Therefore, the generation of the halo effect can be avoided.

Abstract: The embodiments of the disclosure provide a space recognition method, an electronic device and a non-transitory computer-readable storage medium. The method includes the following steps. Sensor data for detecting obstacle positions is obtained from a sensor associated with an electronic device. A plurality of coordinates respectively corresponding to the obstacle positions are generated based on the sensor data. Boundary line information of a space surrounding the electronic device is updated according to the coordinates until an optimization condition is met for each boundary line. A spatial range of the space surrounding the electronic device is identified based on the boundary line information. The spatial range is used to guide a movement of the electronic device.

Abstract: A projection device and a projection picture correction method thereof are provided. When the projection device performs projection toward a projection surface, a plurality of target coordinates of a plurality of target vertexes are obtained based on a plurality of planes of the projection surface. The plurality of planes are not coplanar with each other, and the plurality of target vertexes form a target polygon. A first direction scaling process is performed respectively on a plurality of first image portions of an original trapezoidal image and a trapezoidal image block is generated. A second direction scaling process is performed respectively on a plurality of second image portions of the trapezoidal image block and a target image block aligned with the target polygon is generated. An output image including the target image block is projected onto the projection surface.

Abstract: A voltage regulating device and a mode switching detecting circuit are provided. The mode switching detecting circuit is configured to reset a soft start circuit of the voltage regulating device. The mode switching detecting circuit includes a mode switching signal detector, a reset signal generator, and a reset status detector. The mode switching signal detector receives a mode switching signal and generates a setting signal according to a transition edge of the mode switching signal. The reset signal generator is coupled to the mode switching signal detector and generates a reset activating signal according to the setting signal. The reset activating signal drives the soft start circuit to perform a reset operation. The reset status detector compares an output voltage of the soft start circuit and a reference voltage to generate a clear signal. The reset signal generator clears the reset activating signal according to the clear signal.

Abstract: A projection apparatus and a keystone correction method thereof are provided. The projection apparatus includes a display processing circuit including an image processing circuit, a first keystone correction circuit, a rotation circuit, a second keystone correction circuit, and a video output circuit. The first keystone correction circuit performs first keystone correction processing on a processed image frame based on horizontal scaling processing to obtain a first corrected image frame. The rotation circuit performs rotation processing on the first corrected image frame to write a rotated image frame into a memory. The second keystone correction circuit reads the rotated image frame from the memory and performs second keystone correction processing on the rotated image frame based on the horizontal scaling processing to obtain a second corrected image frame. The video output circuit transmits the second corrected image frame to a projection module through a data transmission interface.

Abstract: A video transmitting circuit and a signal delay compensation method thereof are provided. The video transmitting circuit transmits a specific signal through a first transmission path and a second transmission path to a video receiver during a calibration mode. In the calibration mode, a return detection circuit of the video transmitting circuit detects whether or not a first return signal transmitted through the first transmission path and a second return signal transmitted through the second transmission path have been received by the video transmitting circuit. The video transmitting circuit sets delay circuits serially connected in the first or second transmission path according to a detection result of the return detection circuit, such that the first return signal transmitted through the first transmission path and the second return signal transmitted through the second transmission path can synchronously arrive at the video receiver.

Abstract: A signal receiver and a signal transceiver are provided, which may avoid unnecessary leakage current. The signal receiver includes a termination switch pair, a first resistor, a second resistor, and a pull-down circuit. The termination switch pair receives an operation power supply. The termination switch pair has a common control end. The first resistor is coupled between a first signal input end and the common control end. The second resistor is coupled between a second signal input end and the common control end. The pull-down circuit is coupled between the common control end and a reference voltage end. The pull-down circuit determines whether to pull down a first control voltage on the common control end to a reference voltage according to a power-on state or a power-off state of the signal receiver.