Abstract:
In an image display device having a frame rate converting (FRC) portion, it is possible to prevent image degradation of a combined image display portion such as an OSD and PinP attributed to the FRC process. The image display device includes: an FRC portion 10 for converting the number of frames of an input image signal by interpolating an image signal subjected to a motion compensation process between the frames of the input image signal; an OSD processing portion 14 for superposing an OSD signal on the input image signal, and a controlling portion 15. The FRC portion 10 has a motion vector detecting portion 11e for detecting a motion vector between the frames of the input image signal, an interpolation vector evaluating portion 11f for allocating interpolation vector between frames based on the motion vector information, and an interpolation frame generating portion 12d for generating an interpolation frame from the interpolation vector. When the OSD signal is superposed on the input image signal, the controlling portion 15 disables the motion compensation process of the FRC portion 10 by making the motion vector detected by the motion vector detecting portion 11e 0 vector.
Abstract:
The disclosed image enlargement device is provided with: an image enlargement filter (1) that enlarges an input image, generating a first enlarged image; a first wavelet transformation unit (2) that performs a wavelet transformation on the first enlarged image; a second wavelet transformation unit (3) that performs a wavelet transformation on the first enlarged image; and an accentuation processing unit (6, 7, 8, 10) that performs an accentuation process using a first edge signal (EDGE_CDF9/7), generated from the output of the first wavelet transformation unit, and a second edge signal (EDGE_Harr), generated from the output of the second wavelet transformation unit. The first wavelet transformation unit and the second wavelet transformation unit perform different wavelet transformations.
Abstract:
A three-dimensional noise reduction processing unit perform as a recursive noise reduction process to an input image X(n), using a motion vector MV detected by a motion vector detecting unit. A three-dimensional noise reduced image B(n) is output as a corrected original image Y(n). A two-dimensional noise reduction filter processing unit applies a two-dimensional noise reduction filter to the input image X(n). Using the motion vector MV, an interpolated image generating unit generates an interpolated image Y(n+0.5) based on a two-dimensional noise reduced image A(n). Significant degradation of an interpolated image due to false detection of a motion vector is prevented by generating the interpolated image based on the image resulted without performing the recursive noise reduction process.
Abstract:
A liquid crystal data calculation section forms, on the basis of input image data, liquid crystal data to display an image on a liquid crystal panel. In at least one example embodiment, an LED data calculation section forms, on the basis of the input image data, LED data for adjusting an amount of light of an LED backlight. An LED control section controls an amount of an output current of an LED power source on the basis of the LED data, and includes a protection function of limiting the amount of the output current so that the amount of the output current does not exceed a predetermined upper limit. In a case where the amount of the output current of the LED power source is reduced to the upper limit by the LED control section, a liquid crystal transmittance correction section corrects the liquid crystal data and increases transmittance so as to compensate reduction in luminance of the backlight.
Abstract:
An image processing device and method, and an image display device and method which realizes a high-definition displayed video by reducing motion blur caused by a holding-type display system and reducing motion blurs of the displayed video caused by the time integration effect of an image sensor while suppressing deterioration of an image. The image display device includes a motion vector detection section (101) which detects a motion vector in each predetermined region between the frames of an inputted image signal, and an edge emphasis part (2) which emphasizes the high-frequency component of the inputted image signal and an interpolated image signal generated by an FRC part (100) according to the motion amount of the inputted image signal detected by the motion vector detection section (101). This compensates the high-frequency component attenuated by the time integration effect of the image sensor to reduce the apparent motion blurs to improve the sharpness of the displayed image. By making the degree of edge emphasis of the interpolated image signal smaller than that of the inputted image signal, the sharpness of the displayed image is improved without making the image deterioration of the interpolated image signal distinct.
Abstract:
Deterioration in image quality of a moving image obtained by special reproduction caused by frame rate conversion (FRC) processing of a motion compensation type is prevented. An image displaying device includes an FRC portion 10 that converts the number of frames of the input image signal by interpolating an image signal to which motion compensation processing has been performed between frames of an input image signal, a special reproduction determining portion 14 that determines whether or not the input image signal is an image signal relating to a predetermined genre, and a controlling portion 15. The FRC portion 10 includes a motion vector detecting portion lie that detects a motion vector between frames of the input image signal, an interpolation vector evaluating portion 11f that assigns an interpolation vector between frames based on the motion vector information, and an interpolation frame generating portion 12d that generates an interpolation frame from the interpolation vector. When the input image signal is an image signal obtained by special reproduction including “fast forward reproduction” and “rewind reproduction”, the controlling portion 15 makes the motion compensation processing in the FRC portion 10 ineffective by making the motion vector detected by the motion vector detecting portion lie to zero-vector.
Abstract:
In an image displaying apparatus including a motion compensated rate converting (FRC) portion, deterioration of image quality is prevented in an image having a high-speed region and a low-speed region mixed. The FRC portion includes a motion vector detecting portion 11e and an interpolation frame generating portion 12b. The motion vector detecting portion 11e includes a first region detecting means 112e1 that detects a first region (high-speed region) including a motion amount equal to or greater than a first predetermined amount from an input image signal, a second region detecting means 112e2 that detects a second region (low-speed region) including a motion amount equal to or less than a second predetermined amount from the input image signal, and a third region detecting means 113e that detects a still region from an inter-frame difference of the input image signal. The interpolation frame generating portion 12b executes a motion compensated interpolation process using motion vectors for the still region in the first region (background) and executes a zero-vector interpolation process for the still region in the second region (foreground).
Abstract:
When a jig to be used at the time of cutting and machining a workpiece W with a laser beam machine 1 is produced, a shape of a workpiece supporting portion 23a for supporting the workpiece by abutting on the workpiece at the time of supporting the workpiece is produced from drawing data CD showing the three dimensional shape of the workpiece.
Abstract:
A motion vector detecting unit 12 detects a motion vector V1 of an input image X(n), and an interpolating vector generating unit 13 generates an interpolating vector V2 in accordance with the motion vector V1. In a two-dimensional display mode, the input image X(n) is output as an original image, and an image generating unit 16 generates an interpolated image X(n+0.5) in accordance with the interpolating vector V2. In a three-dimensional display mode, the input image X(n) is output as a left-eye image L(n), and the image generating unit 16 generates a right-eye image R(n+0.5) in accordance with a sum of the interpolating vector V2 and a parallax vector V3 input from the outside. The image generating unit is shared in a frame rate conversion process and a three-dimensional conversion process, and the right-eye image is generated at the same location as the interpolated image in time axis. In this way, image quality is increased when a moving image is displayed with a small amount of circuit.
Abstract:
In an image displaying device provided with a frame rate conversion (FRC) portion, the image quality deterioration in a moving image likely to include a plurality of the same consecutive images due to a FRC processing is prevented. The FRC portion (100) of the image displaying device includes a motion vector detecting portion (101) that detects motion vector information from an input image signal, an interpolation frame generating portion (106) that generates interpolation frames based on the motion vector information obtained by the motion vector detecting portion (101) and a same image detecting portion (105) that detects a case where the same images continue in the input image signal. In the case where the image of the (n−1)-th frame in the input image signal is substantially the same as the image of the n-th frame, interpolation image generating processing with the motion compensation processing made ineffective is performed between n-th frame and (n+1)-th frame to prevent that the interpolation image including a lot of errors is output.