摘要:
Provided is a motion vector detecting apparatus capable of detecting a motion vector of a pulldown-converted 3D image signal with high precision. A pulldown detecting unit detects whether a 3D image signal is a pulldown-converted image signal. An LR separating unit outputs an LR separation signal separated into left and right image signals in each of frames having the same image content. A frame delay LR separating unit outputs a frame delay LR separation signal separated into left and right image signals in a frame before one repetition period. A motion vector detector detects motion vectors of the left and right image signals, An LR combination unit combines the motion vectors of the left and right image signals to output the combined motion vectors as a motion vector.
摘要:
The disclosed 3D image display device has: a delay unit (10) that delays right-eye image data (RI(n)) by one frame and outputs the result as delayed right-eye image data (RI(n−1)); a data emphasis unit (20a) that outputs right-eye image emphasis data (RE(n)) on the basis of the difference between the right-eye image data (RI(n)) and left-eye image data (LI(n)); a data emphasis unit (20b) that outputs left-eye image emphasis data (LE(n)) on the basis of the difference between the left-eye image data (LI(n)) and the delayed right-eye image data (RI(n−1)); and a time-division output unit (30) that takes in the right-eye image emphasis data (RE(n)) and the left-eye image emphasis data (LE(n)) as input, stores said data in a frame memory (31), performs time division on said data, using a prescribed frequency, and outputs the result.
摘要:
A display device includes a liquid crystal panel with video display lines, a display controller operable to have display data rendered on the liquid crystal panel, the display data including first field data of a video signal input, and second field data of the video signal as field data subsequent in temporal order and different in content from the first field data, a backlight unit disposed behind the liquid crystal panel and provided with light sources adapted to emit light for irradiation to respective regions on the liquid crystal panel sectioned in accordance with a scan direction, and a backlight controller operable to have the light sources transitioned between a light-out state and a light emitting state with a transition time shorter than a scan time of first field data and a scan time of second field data by the display controller.
摘要:
A method of driving an image display apparatus having a display section having a plurality of pixels arranged in a matrix. Each of a plurality of frames of a digital video signal are converted into a plurality of subframes having different display periods each shorter than a one-frame period, in order to display the video signal at a plurality of gradation levels. The pixels in the display section are driven by turning on or off the subframes according to a first subframe pattern to give each of the gradation levels to pixels in odd columns and odd rows and pixels in even columns and even rows among the pixels in the display section and a second subframe pattern to give each of the gradation levels to pixels in odd columns and even rows and pixels in even columns and odd rows among the pixels in the display section.
摘要:
An active matrix type display panel is a hold type display panel which has a plurality of pixels arranged in a matrix form, and holds and displays an electrical signal pixel by pixel for a predetermined time. A frame rate conversion circuit converts a video signal having a first vertical frequency (60 Hz) into a video signal having a second vertical frequency (120 Hz) which is m/n-fold (wherein m is an integer of 2 or more, n is an integer of 1 or more, and conditions of m>n are satisfied) of the first vertical frequency. A time base emphasizing circuit subjects an output from the frame rate conversion circuit to time base emphasis. A drive circuit displays the video signal having the second vertical frequency in a display panel.
摘要:
A method of driving an image display apparatus having a display section having a plurality of pixels arranged in a matrix. Each of a plurality of frames of a digital video signal are converted into a plurality of subframes having different display periods each shorter than a one-frame period, in order to display the video signal at a plurality of gradation levels. The pixels in the display section are driven by turning on or off the subframes according to a first subframe pattern to give each of the gradation levels to pixels in odd columns and odd rows and pixels in even columns and even rows among the pixels in the display section and a second subframe pattern to give each of the gradation levels to pixels in odd columns and even rows and pixels in even columns and odd rows among the pixels in the display section.
摘要:
Provided is a motion vector detecting apparatus capable of detecting a motion vector based on each of front and rear frames as a starting point while restraining an increase of a circuit scale. A starting pixel generation unit generates starting pixel data based on pixel data in a frame f0 or a frame f1. A search range pixel generation unit generates search range pixel data based on pixel data in the frame f1 or the frame f0. Switches alternately switch the frames f0 and f1 at every line. A motion vector selection unit generates alternately a motion vector based on the frame f0 as a starting point and a motion vector based on the frame f1 as a starting point. A correlation comparing unit selects one motion vector having higher correlation between the motion vectors.
摘要:
Provided is a motion vector detecting apparatus capable of detecting a motion vector of a pulldown-converted 3D image signal with high precision. A pulldown detecting unit detects whether a 3D image signal is a pulldown-converted image signal. An LR separating unit outputs an LR separation signal separated into left and right image signals in each of frames having the same image content. A frame delay LR separating unit outputs a frame delay LR separation signal separated into left and right image signals in a frame before one repetition period. A motion vector detector detects motion vectors of the left and right image signals, An LR combination unit combines the motion vectors of the left and right image signals to output the combined motion vectors as a motion vector.
摘要:
An image display device includes a gain calculator, a multiplier and an overdrive unit. The gain calculator calculates a ratio “Gmax0/Gmax1” as gain, with respect to each segmented region of liquid crystal panel. The symbol “Gmax1” represents a maximum gradation in one frame period of an image signal to be supplied to each segmented region. The symbol “Gmax0” represents a maximum gradation to be determined depending on the number of bits in the image signal. The multiplier multiplies an image signal subjected to frame frequency conversion in a frame frequency conversion unit by the gain to generate an image signal subjected to the area control processing, with respect to each segmented region. The overdrive unit emphasizes the image signal subjected to the area control processing, using an image signal generated by delaying the image signal subjected to the area control processing for one frame period.
摘要:
A repetitive object detecting device includes data-retention and difference-calculation units, an adding unit, a horizontal direction accumulating unit and a small and large comparing unit. Each data-retention and difference-calculation unit carries out, with respect to a plurality of lines, a process for setting as reference pixel data pixel data located at an end of a plurality of pieces of pixel data, and calculating a difference between the reference pixel data and pixel data separated from the reference pixel data by k pixels (2≦k≦maximum number) to obtain difference data by each separated pixel number k. The adding unit adds the difference data in the plurality of lines by each separated pixel number k. The horizontal direction accumulating unit accumulates the added data by each separated pixel number k in a horizontal direction. The small and large comparing unit carries out a small and large comparison with respect to the horizontal accumulated value by each separated pixel number k to decide whether or not the reference pixel data is pixel data which is located in a repetitive object including a certain repetitive pattern.