Abstract: A head mounted system includes a physiological signal sensor, a signal processing circuit, a memory, an application processor, and an eyeglass frame. The physiological signal sensor monitors a physiological state to output a physiological signal. The signal processing circuit determines whether the physiological state is abnormal according to the physiological signal. When it is not abnormal, the signal processing circuit controls the physiological signal sensor to monitor the physiological state at a first monitoring frequency. When it is abnormal, the signal processing circuit outputs a warning signal, and controls the physiological signal sensor to monitor the physiological state at a second monitoring frequency greater than the first monitoring frequency. The application processor receives the warning signal and stores physiological data corresponding to the physiological signal in the memory.

Abstract: A saturation compensation method is provided. The method includes the steps of: retrieving an input image; performing at least one first image process on the input image to generate a first image; calculating saturation corresponding to each pixel in the input image; and performing a saturation compensation process on the first image according to the input image and the saturation to generate an output image.

Abstract: An electronic eyeglass is disclosed. The electronic eyeglass includes a polarizing beam splitter (PBS) and an eyeglass frame. The eyeglass frame carries the PBS.

Abstract: A head mounted display system comprises a lens set, an image capturing unit and a processing circuit. The lens set comprises a first liquid crystal panel and a second liquid crystal panel. The first liquid crystal panel comprises first liquid crystal blocks, and the second liquid crystal panel comprises second liquid crystal blocks. The image capturing unit captures front image data having a first dynamic range. The processing circuit performs tone mapping according to the front image data to generate mapping image data having a second dynamic range smaller than the first dynamic range. The processing circuit calculates regulated values according to the mapping image data. A driving circuit drives the first liquid crystal blocks and the second liquid crystal blocks according to the regulated values, respectively.

Abstract: A high capacity power transformer (1) includes a housing (3) having top and bottom ends. A top board (32) extends outwards from four sides of the top end of the housing (3). A bottom board (33) extends outwards from four sides of the bottom end of the housing (3). A frame (4) is connected between each of four sides of the top board (32) and a corresponding one of four sides of the bottom board (33). An outer wallboard (5) envelops and is fixed to each frame (4). A sound absorbing material layer (6) is mounted to an inner face of each outer wallboard (5) facing the housing (3). The sound absorbing material layers (6) are connected to each other and surround four sides of the housing (3). The outer wallboards (5) are connected to each other and surround the four sides of the housing (3).

Abstract: An exposure-control system and an associated exposure control method are provided. The exposure-control system includes: an image capturing unit configured to capture a long-exposure image and a short-exposure image with a first exposure value and a second exposure value, respectively; and a processor, configured to calculate histograms of the long-exposure image and the short-exposure image, and calculate an exposure ratio according to the calculated histograms, the first and second exposure values, wherein when the exposure ratio is smaller than a first threshold, the processor switches a current exposure mode to a low dynamic range mode. When the exposure ratio is larger than a second threshold, the processor switches the current exposure mode to a high dynamic range mode. When the exposure ratio is between the first threshold and the second threshold, the processor does not switch the current exposure mode.

Abstract: An exposure-control system and an associated exposure control method are provided. The exposure-control system includes: an image capturing unit configured to capture a long-exposure image and a short-exposure image with a first exposure value and a second exposure value, respectively; and a processor, configured to calculate histograms of the long-exposure image and the short-exposure image, and calculate an exposure ratio according to the calculated histograms, the first and second exposure values, wherein when the exposure ratio is smaller than a first threshold, the processor switches a current exposure mode to a low dynamic range mode. When the exposure ratio is larger than a second threshold, the processor switches the current exposure mode to a high dynamic range mode. When the exposure ratio is between the first threshold and the second threshold, the processor does not switch the current exposure mode.

Abstract: A white-balance method for use in a multi-exposure imaging system having an image capturing unit is provided. The method includes the steps of: utilizing the image capturing unit to simultaneously capture a first image and a second image of a scene with a first exposure value and a second exposure value, respectively, wherein the second exposure value is smaller than the first exposure value, and the first exposure value and the second exposure value have individual exposure time and exposure gain; performing light source detection on the second image to obtain light source information and a corresponding light source color ratio of the scene; and performing a color gain process on the first image according to the light source color ratio to generate an output image.

Abstract: An atomizing apparatus for development of biological trace evidence comprises a container which has an opening and a housing space communicating with the opening, a trace evidence developing solution held in the housing space to develop a biological trace evidence and an atomizer located in the opening. The atomizer includes a piezoelectric vibration element in contact with the trace evidence developing solution. The piezoelectric vibration element can shake the trace evidence developing solution via high frequency vibration to form a plurality of small liquid particles to be discharged outside the container. The small liquid particles of the trace evidence developing solution pass through the opening and spray directly on the biological trace evidence to generate an oxidized reduction reaction therewith to produce colored substance to reveal the biological trace evidence in a visible fashion.

Abstract: A head mounted display and a control method thereof are disclosed. The control method comprises following steps. An application processor controls a pico projector unit to project a virtual image having a virtual object located on a virtual image coordinate in a virtual image coordinate system. An eye image sensing unit captures an eye image data. A sensing apparatus senses a touch object to output a sensing data. An ASIC obtains a real image coordinate of the touch object in a real image coordinate system according to the sensing data. The ASIC obtains a pupil position according to the eye image data, and controls the adjustment unit to adjust an imaging position of the virtual image according to the pupil position. The ASIC determines whether the touch object touched the virtual object according to the pupil position, the real coordinate and the virtual coordinate.

Abstract: A head mounted display (HMD) apparatus is disclosed. The HMD apparatus comprises a pico projector, a lens, a half reflective film, an application processor, and an eyeglass frame. The half reflective film covers the lens. The application processor controls the pico projector to project a virtual image beam to the half reflective film. The eyeglass frame carries the pico projector, the lens, and the application processor.

Abstract: A white-balance method for use in a multi-exposure imaging system having an image capturing unit is provided. The method includes the steps of: utilizing the image capturing unit to simultaneously capture a first image and a second image of a scene with a first exposure value and a second exposure value, respectively, wherein the second exposure value is smaller than the first exposure value, and the first exposure value and the second exposure value have individual exposure time and exposure gain; performing light source detection on the second image to obtain light source information and a corresponding light source color ratio of the scene; and performing a color gain process on the first image according to the light source color ratio to generate an output image.

Abstract: A head mounted display (HMD) and an imaging method thereof are provided. The HMD comprises a beam splitter, a pico projector, an application processor, an eye image sensor, an adjustment apparatus, an application specific integrated circuit (ASIC), and an eyeglass frame. The application processor controls the pico projector to project a beam. The eye image sensor captures an eye image. The ASIC performs a perspective correction on the eye image to generate a frontal eye image. The ASIC obtains a beam location of the beam and obtains a pupil location according to the frontal eye image. The ASIC according to the beam location and the pupil location controls the adjustment apparatus to adjust the beam splitter. The eyeglass frame carries the beam splitter, the pico projector, the application processor, the eye image sensor and the ASIC.

Abstract: A saturation compensation method is provided. The method includes the steps of: retrieving an input image; performing at least one first image process on the input image to generate a first image; calculating saturation corresponding to each pixel in the input image; and performing a saturation compensation process on the first image according to the input image and the saturation to generate an output image.

Abstract: A head mounted display system comprises a lens set, an image capturing unit and a processing circuit. The lens set comprises a first liquid crystal panel and a second liquid crystal panel. The first liquid crystal panel comprises first liquid crystal blocks, and the second liquid crystal panel comprises second liquid crystal blocks. The image capturing unit captures front image data having a first dynamic range. The processing circuit performs tone mapping according to the front image data to generate mapping image data having a second dynamic range smaller than the first dynamic range. The processing circuit calculates regulated values according to the mapping image data. A driving circuit drives the first liquid crystal blocks and the second liquid crystal blocks according to the regulated values, respectively.

Abstract: An electronic eyeglass is disclosed. The electronic eyeglass includes a polarizing beam splitter (PBS) and an eyeglass frame. The eyeglass frame carries the PBS.

Abstract: A method for controlling an exposure duration of a high dynamic range image, including: consecutively generating a first high dynamic range image having a first exposure duration ratio and a second high dynamic range image having a second exposure duration ratio greater than the first exposure duration ratio; performing image quality evaluations on both the first high dynamic range image and the second high dynamic range image to obtain a first image quality and a second image quality, respectively; and determining whether the second image quality is better than the first image quality; if yes, generating a third high dynamic range image having a third exposure duration ratio greater than the second exposure duration ratio; if not, generating the third high dynamic range image having the first exposure duration ratio and setting the first exposure duration ration as the optimal exposure duration ratio.

Abstract: A head mounted display (HMD) apparatus is disclosed. The HMD apparatus comprises a pico projector, a lens, a half reflective film, an application processor, and an eyeglass frame. The half reflective film covers the lens. The application processor controls the pico projector to project a virtual image beam to the half reflective film. The eyeglass frame carries the pico projector, the lens, and the application processor.

Abstract: A head mounted display and a control method thereof are disclosed. The control method comprises following steps. An application processor controls a pico projector unit to project a virtual image having a virtual object located on a virtual image coordinate in a virtual image coordinate system. An eye image sensing unit captures an eye image data. A sensing apparatus senses a touch object to output a sensing data. An ASIC obtains a real image coordinate of the touch object in a real image coordinate system according to the sensing data. The ASIC obtains a pupil position according to the eye image data, and controls the adjustment unit to adjust an imaging position of the virtual image according to the pupil position. The ASIC determines whether the touch object touched the virtual object according to the pupil position, the real coordinate and the virtual coordinate.

Abstract: A head mounted display (HMD) and an imaging method thereof are provided. The HMD comprises a beam splitter, a pico projector, an application processor, an eye image sensor, an adjustment apparatus, an application specific integrated circuit (ASIC), and an eyeglass frame. The application processor controls the pico projector to project a beam. The eye image sensor captures an eye image. The ASIC performs a perspective correction on the eye image to generate a frontal eye image. The ASIC obtains a beam location of the beam and obtains a pupil location according to the frontal eye image. The ASIC according to the beam location and the pupil location controls the adjustment apparatus to adjust the beam splitter. The eyeglass frame carries the beam splitter, the pico projector, the application processor, the eye image sensor and the ASIC.