摘要:
Systems and methods of processing pixel information associated with video image deinterlacing are disclosed. In one exemplary implementation, the method may include performing an edge adaptive interpolation process on a present field so as to determine whether an edge passes through a pixel, wherein the edge adaptive interpolation process provides edge data including a first intensity estimate for the pixel, receiving motion data associated with motion compensation processing, including an estimated motion vector for at least one pixel proximate to the pixel in at least one reference field, determining a second intensity estimate for the pixel as a function of the edge data and the motion data, and performing an intensity-calculation procedure, wherein an interpolated intensity of the pixel is calculated as a function of the first intensity estimate and the second intensity estimate.
摘要:
The present invention discloses a brightness compensation method. The brightness compensation method includes controlling a plurality of backlights of a plurality of display areas to turn on with a plurality of backlight intensity; calculating a plurality of total backlight intensity; calculating a plurality of actual backlight intensity according to the plurality of total backlight intensity and a backlight scanning ratio; dividing a plurality of maximum backlight intensity when the plurality of backlights are fully turned on by the plurality of actual backlight intensity, to generate a plurality of compensation gains; and displaying a compensated image data with a plurality of compensated image intensity after compensating a plurality of image intensity corresponding to the plurality of display area of an image data with the plurality of compensation gains.
摘要:
The present invention provides a system and method for adjusting clock phase in a digital display. The display 10 may include a target analog-to-digital converter 104 that generates a first digital signal based on an analog input signal and a first clock signal (CLK1). The system 100 includes a first clock phase adjustment circuit 108, which provides CLK1 to the target analog-to-digital converter 104. A second analog-to-digital converter 106 receives at least a portion of the analog input signal and a second adjusted clock signal (CLK2), and generates a second digital signal based on these inputs. A second clock phase adjustment circuit 100 is communicatively coupled to the second analog-to-digital converter 106, and transmits CLK2 to the second analog-to-digital converter. A controller 112 receives the second digital signal from the second analog-to-digital converter 106 and uses the signal to determine a preferred phase of CLK2. The controller 112 then causes the first clock phase adjustment circuit to adjust the phase of CLK1 based on the preferred phase.
摘要:
A method and system for edge-adaptive frame rate up-conversion are disclosed. One embodiment of the system of the present invention comprises: a capture block for receiving and processing an input signal; a frame buffer to receive and process a data signal output from the capture block; an edge-adaptive interpolator to generate an interpolated field signal from a set of current input field signals output from the frame buffer; a motion detector to receive a composite signal output from the frame buffer and to process the composite signal to generate a motion signal; a blender to receive a prior input field signal from the frame buffer, the interpolated field signal from the edge-adaptive interpolator, and the motion signal, and generate an edge and motion-interpolated field signal; a synchronization control block to process an input vertical synchronization signal received from the capture block and generate an output synchronization signal and an output field parity signal; a comparator to receive and compare the output field parity signal and an input field parity signal output from the capture block; and a multiplexer to select, based on the output of the comparator, and provide as an up-converted output signal, either one of the set of current input field signals output from the frame buffer or the edge and motion-interpolated field signal. The input signal can comprise a PAL video signal at 50 Hertz. The up-converted output signal can comprise, for example, a 60 Hertz PAL output signal or a 75 Hertz PAL output signal.
摘要:
A motion estimation method is provided, which includes following steps: dividing a first frame to be estimated into a plurality of area units, in which each of the area units includes a plurality of blocks; and assigning a set of motion vector values to each of the area units, in which the set of motion vector values includes a plurality of predetermined motion vector values, and each of the predetermined motion vector values is assigned to at least one block in each of the area units.
摘要:
The present invention discloses a brightness compensation method. The brightness compensation method includes controlling a plurality of backlights of a plurality of display areas to turn on with a plurality of backlight intensity; calculating a plurality of total backlight intensity; calculating a plurality of actual backlight intensity according to the plurality of total backlight intensity and a backlight scanning ratio; dividing a plurality of maximum backlight intensity when the plurality of backlights are fully turned on by the plurality of actual backlight intensity, to generate a plurality of compensation gains; and displaying a compensated image data with a plurality of compensated image intensity after compensating a plurality of image intensity corresponding to the plurality of display area of an image data with the plurality of compensation gains.
摘要:
The present invention provides a system and method for adjusting clock phase in a digital display. The display 10 may include a target analog-to-digital converter 104 that generates a first digital signal based on an analog input signal and a first clock signal (CLK1). The system 100 includes a first clock phase adjustment circuit 108, which provides CLK1 to the target analog-to-digital converter 104. A second analog-to-digital converter 106 receives at least a portion of the analog input signal and a second adjusted clock signal (CLK2), and generates a second digital signal based on these inputs. A second clock phase adjustment circuit 100 is communicatively coupled to the second analog-to-digital converter 106, and transmits CLK2 to the second analog-to-digital converter. A controller 112 receives the second digital signal from the second analog-to-digital converter 106 and uses the signal to determine a preferred phase of CLK2. The controller 112 then causes the first clock phase adjustment circuit to adjust the phase of CLK1 based on the preferred phase.
摘要:
A method for interpolating a pixel during the deinterlacing of a video signal, the video signal including at least two fields of interlaced scan lines, each scan line including a series of pixels having respective intensity values, includes generating a motion value representative of the motion between successive frames about the pixel, detecting an edge direction about the pixel, performing an edge adaptive interpolation at the pixel, using the detected edge direction, and performing a motion adaptive interpolation at the pixel, using the generated motion value. Apparatus for interpolating a pixel during the deinterlacing of a video signal, the video signal including at least two fields of interlaced scan lines, each scan line including a series of pixels having respective intensity values, includes a motion value generator configured to generate a motion value representative of the motion between successive frames about the pixel, an edge direction detector configured to detect an edge direction about the pixel, an edge adaptive interpolator configured to perform an edge adaptive interpolation at the pixel, using the detected edge direction, and a motion adaptive interpolator configured to perform a motion adaptive interpolation at the pixel, using the generated motion value.
摘要:
Method for searching for a small moving object is used to insert an inserting image frame between two adjacent image frames. An inserting region in the inserting image frame is selected. Multiple preset extending directions passing through the inserting region are selected. The extending directions respectively intersect the two image frames simultaneously to analyze whether the extending directions satisfy a condition of movement of the same image object, and obtain at least one motion vector (MV) corresponding to the extending direction. A globe MV between the first image frame and the second image frame is obtained. It is compared whether a motion-vector difference between the at least one MV and the globe MV is smaller than a setting value, and then first local-region image data and second local-region image data corresponding to the MV are used for compensation to produce an inserting image for the inserted region about background.
摘要:
A method for searching small moving object is used to insert an inserting image frame between adjacent two image frames. An inserting region is selected in the inserting image frame. Multiple extending directions passing through the inserting region are selected. Each of the extending directions extends and intersects with the two image frames to analyze out which one of the extending directions satisfies the condition of movement by the same object, and obtain at least one motion vector corresponding to the extending direction. A globe motion vector between the two image frames is obtained. A motion-vector difference between the at least one motion vector and the globe motion vector is compared to judge whether greater than a setting value. If the motion vector difference is greater than the setting value then the first local-region image data and the second local-region image data are treated as a small moving object.