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30results about How to "Improve motion blur" patented technology

Method for eradicating liquid crystal display dynamic trailing smear

The invention discloses a method for eliminating dynamic streaking of liquid crystal display. The concrete steps include: (a). convert images of two following frames into black and white brightness signal images; (b). compare the pixels at the corresponding position in the black and white brightness signal images and retain the pixel with a smaller grayness value; (c). form a frame of black frame insertion images (Gn) with the group of pixels obtained after the comparison of each pair of pixels; (d). insert the black frame insertion images (Gn) into images of two following frames. The method of the invention is to compare continuous image signals of two frames, and form a frame of 'new grayness distribution signal' with the darker pixels of each pixel position as the black frame insertion image to reach the purpose of lowering MPRT and eliminating streaking of dynamic images. The invention can not only overcome the shortcoming of the low efficiency of the black frame insertion technique, but also overcome the inadequate elimination of dynamic blurs and the high decline of the contrast in gray frame insertion technique. In addition, the method of obtaining insertion frames is simple and accessible, thus greatly saving the production cost.
Owner:NANJING CEC PANDA LCD TECH

Image Processing Apparatus, Image Processing Method, and Recording Medium

An image processing apparatus includes a still / motion determining unit and a motion blur adder. The still / motion determining unit makes a still / motion determination for each region of respective unit images constituting motion image data. The motion blur adder then adds motion blur to the motion image data on the basis of the still / motion determination and imaging information expressing parameters whereby the motion image data was generated as a result of imaging by an imaging apparatus.
Owner:SONY CORP

Display device and driving method thereof

A display device includes: a plurality of pixels, each of the pixels including: a switching transistor; a relay transistor; a first capacitor; a driving transistor; and an organic light emitting diode (OLED). The OLED emits light according to a driving current from a first power source voltage, and a light emitting period for the OLED is one of a first light emitting period that is not temporally overlapped with a scan period in which data are written to the pixels or a second light emitting period that is temporally overlapped with the scan period. A duty of the light emitting period is controlled by controlling a time when a second power source voltage is applied as a low level voltage within the first light emitting period or controlling a time when the second power source voltage is applied as a low level voltage within the second light emitting period.
Owner:SAMSUNG DISPLAY CO LTD

Grey insertion method and drive circuit for LCD display

ActiveCN101546540AIncrease or decrease the degree of ash insertionDegree of increase or decreaseStatic indicating devicesLiquid-crystal displayWork cycle
The invention is applied in the technical field of LCD display, and provides a grey insertion method and a drive circuit for the LCD display, wherein the method comprises the following steps of: judging that the LCD display displays a dynamic frame or static frame; when the LCD display displays the dynamic frame, improving the extent of the grey insertion of the frame displayed by the LCD display, and synchronously prolonging a working cycle of a pulse width modulation signal, wherein the pulse width modulation signal is used for driving a backlight module of the LCD display; and when the LCD display displays the static frame, reducing the extent of the grey insertion of the frame displayed by the LCD display, and synchronously shortening the working cycle of the pulse width modulation signal. Because a frame detector is used to judge that a second frame displayed by the LCD display is the dynamic frame or static frame, the increase or decrease of the extent of the grey insertion of the frame is determined, and the working cycle of the pulse width modulation signal is synchronously prolonged or shortened, the method and the drive circuit can be suitably used for adjusting the extent of the grey insertion of the frame, synchronously adjusting the brightness of the backlight, and improving the dynamic fuzzy problem of the dynamic frame.
Owner:CPT TECH GRP +1

Video decoding method and device for reducing LCD display movement fuzz

The invention discloses a video decoding method for reducing the LCD displaying motion fuzzy, which includes the following steps: a video stream enters a de-multiplexing module to be de-multiplexed to obtain motion coding information and texture coding information; after the motion coding information enters a motion coding module, the vector information of motion estimation is analyzed, and the vector information is input into a motion compensation module to obtain a motion compensation image; the texture coding information enters an image texture decoding module to obtain a texture decoding image which is combined with the motion compensation image to obtain a reconstructed image; the reconstructed image is input into an image marginal detecting module to obtain marginal vector information, which enters a dynamic image marginal enhanced module together with the motion estimation vector information; the dynamic image marginal enhanced module inputs enhanced video images into an LCD displaying module. The invention also discloses a device for realizing the method. The method of the invention can effectively improve the motion fuzzy phenomenon during the LCD displaying and save software and hardware resources as well as reduce implementation costs.
Owner:SPREADTRUM COMM (SHANGHAI) CO LTD

Organic light emitting display device and device for driving the same

The present disclosure relates to an organic light emitting display device and a device for driving the same. The present provides the organic light emitting display device that enables implementationof a narrow bezel and easy implementation of a circuit by simplifying a structure of an EM driver, and a device for driving the same.
Owner:LG DISPLAY CO LTD

Signal processing for reducing blur of moving image

The present invention relates to signal processing for motion blur improvement. The image memory of the present invention sequentially stores input image data of a plurality of frames inputted. The writing control unit controls writing to the image memory. The read control unit controls read from the image memory. The drive image data control unit generates the drive image data based on read image data sequentially read from the image memory. The drive image data generation unit replaces at least a part of the read image data with mask data to generate the drive image data. The pixel value indicated by the mask data is determined based on the pixel value indicated by the read image data corresponding to the pixel to be replaced by the mask data. In this way, it is possible to improve the blurring of moving images that occurs in the image display device, and suppress the attenuation of the brightness level of the displayed image.
Owner:SEIKO EPSON CORP

Automatic exposure method, exposure device, camera and computer readable storage medium

The invention discloses an automatic exposure method. The method comprises the following steps: S1, acquiring current frame image data shot by a shooting device according to current exposure parameters, and calculating the brightness Ya of a current frame; S2, calculating a target exposure EVb according to the brightness Ya of the current frame, the current exposure EVa and the target brightness Yb; S3, selecting a corresponding exposure parameter table according to the motion state of the shooting device; S4, determining a target exposure parameter according to the target exposure EVb and the selected exposure parameter table; S5, updating the exposure parameter of the shooting device to the target exposure parameter and returning to the step S1, wherein the current exposure EVa is calculated by a current exposure parameter of the shooting device, and the target brightness Yb is obtained by calculating an exposure index Na by the current exposure EVa and then combining the exposure index Na with a brightness lookup table. According to the invention, the problems of motion blur of a picture caused by shooting in a motion state and serious noisy points of the picture caused by shooting in a static state of the shooting device are improved.
Owner:SHENZHEN ARASHI VISION CO LTD

Imaging and measuring system of vocal cord vibration based on plane wave ultrasonography, and method thereof

An imaging and measuring system of vocal cord vibration based on plane wave ultrasonography, includes: a digital ultrasonography system, a data acquisition unit, and a computer; wherein the digital ultrasonography system comprises an ultrasound linear array transducer and a host; wherein the ultrasound linear array transducer is controlled by the host for sending an ultrasound plane wave and receiving echo; the echo is sent back to data acquisition unit; wherein the data acquisition unit converts the echo into digital signal and then sends it to the computer; wherein the computer provides beamforming, envelope detection, and dynamic range compression of the digital signal received, for obtaining a laryngeal tissue structure image. The present invention provides high-speed imaging of the vocal cord vibration with temproal and spatial synchronization, and quantitatively extracting information of biomechanical parameters as well as vibrational phase changes.
Owner:XI AN JIAOTONG UNIV

Display method of active array type display

The invention provides a display method of an active array type display. Firstly, image data is provided; then the image data is divided into first image block data and second image block data; and thThe invention provides a display method of an active array type display. Firstly, image data is provided; then the image data is divided into first image block data and second image block data; and then first black frame block data and second black frame block data are inserted into the first image block data and the second image block data so as to form a first frame data and a second frame data;en first black frame block data and second black frame block data are inserted into the first image block data and the second image block data so as to form a first frame data and a second frame data; and finally the first frame data and the second frame data are displayed in sequence to display the image data. The method can avoid the great brightness difference between two adjacent output framesand finally the first frame data and the second frame data are displayed in sequence to display the image data. The method can avoid the great brightness difference between two adjacent output frames so as to solve the problems of dynamic image flickering, dynamic fuzzy and remnant image.so as to solve the problems of dynamic image flickering, dynamic fuzzy and remnant image.
Owner:CPTF VISUAL DISPLAY (FUZHOU) LTD

Grey insertion method and drive circuit for LCD display

ActiveCN101546540BIncrease or decrease the degree of ash insertionDegree of increase or decreaseStatic indicating devicesLiquid-crystal displayWork cycle
The invention is applied in the technical field of LCD display, and provides a grey insertion method and a drive circuit for the LCD display, wherein the method comprises the following steps of: judging that the LCD display displays a dynamic frame or static frame; when the LCD display displays the dynamic frame, improving the extent of the grey insertion of the frame displayed by the LCD display, and synchronously prolonging a working cycle of a pulse width modulation signal, wherein the pulse width modulation signal is used for driving a backlight module of the LCD display; and when the LCDdisplay displays the static frame, reducing the extent of the grey insertion of the frame displayed by the LCD display, and synchronously shortening the working cycle of the pulse width modulation signal. Because a frame detector is used to judge that a second frame displayed by the LCD display is the dynamic frame or static frame, the increase or decrease of the extent of the grey insertion of the frame is determined, and the working cycle of the pulse width modulation signal is synchronously prolonged or shortened, the method and the drive circuit can be suitably used for adjusting the extent of the grey insertion of the frame, synchronously adjusting the brightness of the backlight, and improving the dynamic fuzzy problem of the dynamic frame.
Owner:CPT TECH GRP +1
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