267results about How to "Reduce ghosting" patented technology

The invention relates to a depth adaptive video-splicing method, a device and a system thereof. The depth adaptive video-splicing system comprises a camera array, a calibration device, a video-splicing device, a pixel interpolation device and a mixer, wherein a plurality of source videos are generated by the camera array; the calibration device executes antipodal calibration and camera position calibration, confirms a splicing area in each special adjacent image pair in a plurality of source videos and generates a pixel index table; the video-splicing device calculates an average pixel deviation value corresponding to the depth, forms a compensation item of the pixel index table based on the average pixel deviation value and compensates the pixel index table by the compensation item; and the pixel interpolation device and the mixer use the upgraded pixel index table and generate a panoramic video according to a plurality of source videos.

The invention provides a high dynamic range image shooting method and a mobile terminal. The method comprises the following steps: obtaining a first preview image collected by a first camera; determining a foreground image area and a background image area in the first preview image; if a shooting instruction is received, separately obtaining a second preview image collected by the first camera and a third preview image collected by a second camera; performing image synthesis processing on the second preview image and the third preview image to output a high dynamic range image, wherein the second preview image is an exposed image of the foreground image area, and the third preview image is an exposed image of the background image area. According to the high dynamic range image shooting method provided by the embodiment of the invention, the mobile terminal can be used for avoiding the time difference of photos used for synthesizing the HDR image, thereby reducing the occurrence of double images or ghosts and improving the quality of the photos shot by the mobile terminal.

To provide a diaphragm plate which has sufficient strength and doesn't transmit light and suppresses the occurrence of flare and ghost. A diaphragm plate 28 is made of, for example, phosphor bronze or stainless steel. The diaphragm plate 28 comprises a first tabular portion 28a having a diaphragm aperture 35 formed therein and a second tabular portion 28b formed surrounding the periphery of the first tabular portion 28a. The first tabular portion 28a is made thinner than the second tabular portion 28b. An entrance peripheral portion 35d and an exit peripheral portion 25e are formed in an inner peripheral surface 35c of the diaphragm aperture 35. The entrance peripheral portion 35d and the exit peripheral portion 25e are formed circularly. Therefore, the diameter of the diaphragm aperture 35 is made gradually larger according as going toward an entrance 35a and an exit 35b. The inner peripheral surface 35c is coated with a paint preventing reflection of light.

The invention provides a transparent display panel and a transparent display device. The transparent display panel comprises a plurality of display areas arrayed along a first direction and a second direction. Each display area comprises a non-transparent area, a first transparent area and a second transparent area, wherein the non-transparent area and the first transparent area are sequentially arrayed along the first direction, and the non-transparent area and the second transparent area are sequentially arrayed along the second direction. In the multiple display areas arrayed along the first direction, lengths of the display areas in the first direction are in aperiodic variation, and / or in the multiple display areas arrayed along the second direction, the first transparent areas of anytwo adjacent display areas are staggered along the first direction. Therefore, light diffraction can be eliminated or weakened, image ghosting can be eliminated or abated, image display definition can be improved, and user experience is optimized.

A method and apparatus for an improved spectral imaging system is provided. The system is capable of measuring the fluorescence, luminescence, or absorption at selected locations on a sample plate. The emissions detection subassembly can tune to any wavelength within a continuum of wavelengths utilizing an interferometric spectral discriminator. The interferometric spectral discriminator creates an interferogram from which the wavelength spectra for each pixel of the array can be calculated, typically using Fourier transform analysis. In one aspect, the chromatic accuracy of the system is calibrated using a calibration slit placed in the input aperture of the input relay lens but outside of the sample image. The slit is illuminated using a source of known wavelength. The fringe count versus the wavelength of the slit illumination source is monitored and used to calibrate the spectral discriminator. In another aspect, a transparent optic is included in the interferometric spectral discriminator that can be inserted into the beam path whenever a monochrome image of the sample is required. The optic produces a large offset in the legs of the interferometer resulting in the fringe density becoming too large to resolve by the individual pixels of the detector array. In another aspect, the interferometric spectral discriminator includes a polarizing beam splitter. The polarizing beam splitter preferentially reflects one polarization while preferentially transmitting a second polarization, thus achieving improved efficiency while minimizing ghosting. In another aspect, a metaphase finder is used to locate areas of interest. The sample plate containing the material of interest is illuminated with light of a wavelength determined to preferentially scatter from objects the size of the metaphase spreads. The intensity of the scattered light versus the location on the sample plate is monitored and used to locate the areas of interest. Preferably the sample plate is also illuminated by light of a second wavelength which is not preferentially scattered by the objects of interest, thus representing the background scatter. By subtracting the background scatter from the primary scattered light, improved object discrimination is achieved.