Abstract: A device for measuring three dimensional shape includes a first irradiation unit, a first grating control unit, a second irradiation unit, a second grating control unit, an imaging unit, and an image processing unit. After performance of a first imaging operation as imaging processing of a single operation among a multiplicity of imaging operations performed by irradiation of said first light pattern of multiply varied phases, a second imaging operation is performed as imaging processing of a single operation among a multiplicity of imaging operations performed by irradiation of said second light pattern of multiply varied phases. After completion of the first imaging operation and the second imaging operation, shifting or switching operation of the first grating and the second grating is performed simultaneously.

Abstract: A method for color tone correction is disclosed. The method generally includes the steps of (A) generating a plurality of first intermediate components by scaling a plurality of first color components towards a first ideal color, wherein the first color components (i) are for a first plurality of pixels in an input video signal and (ii) fall inside a first region of a color space, (B) generating a plurality of first corrected components by adjusting the first intermediate components such that a first mapping of the first color components to the first corrected components is both (i) continuous in the color space and (ii) non-overlapping in the color space and (C) generating an output video signal by combining the first corrected components with a plurality of unaltered color components, wherein the unaltered color components (i) are for a second plurality of the pixels and (ii) fall outside the first region.

Abstract: A method for a color tone correction is disclosed. The method generally includes the steps of (A) generating a plurality of first intermediate components by scaling a plurality of first color components towards a first ideal color, wherein the first color components (i) are for a first plurality of pixels in an input video signal and (ii) fall inside a first region of a color space, (B) generating a plurality of first corrected components by adjusting the first intermediate components such that a first mapping of the first color components to the first corrected components is both (i) continuous in the color space and (ii) non-overlapping in the color space and (C) generating an output video signal by combining the first corrected components with a plurality of unaltered color components, wherein the unaltered color components (i) are for a second plurality of the pixels and (ii) fall outside the first region.

Abstract: A video signal processing apparatus A comprises: an adder 107 for generating a second address value S106 which has a predetermined phase difference from a first address value S101 outputted by an address value output means 120 and outputting the same; a selector 108 for selecting either a first address value S101 or a second address value S106 to output as an output signal S107; a vertical synchronizing signal output means 123 for outputting the vertical synchronizing signal S104 to the selector 108; a ROM 109 for outputting first data corresponding to the first address value S101 or second data corresponding to the second address value S106 as a signal S108; a loading hold mode flip-flop 110 for preserving the first data; a loading hold mode flip-flop 111 for preserving the second data; and a hue adjustment means B which adjusts the hue of the video signal by using the output signal S109 of the loading hold mode flip-flop 110 and the output signal S110 of the loading hold mode flip-flop 111.

Abstract: In a hue adjustment circuit for adjustment of a color difference signal by addition, subtraction, and multiplication of hue correction components (sin &agr;, cos &agr;) generated from a sub-carrier signal and a color difference signal (R—Y, B—Y), the hue correction components (sin &agr;, cos &agr;) are derived from a chroma signal processing circuit in a TV set by using a switch to select between the chroma signal and a phase-shifted sub-carrier.

Abstract: A symbol color compensating method for a color display system includes the steps of detecting colors of a plurality of pixels from an image being displayed, calculating an entire frequency number of flesh tone, blue and green colors from the detected colors, selecting one color among the flesh tone, blue and green colors when the calculated frequency number thereof is more than a predetermined value, and controlling a color density and a brightness value of the displayed image in accordance with the selected color.

Abstract: A video signal processing apparatus and a design method therefor are provided, and more particularly, a design method for a video signal processing integrated circuit (IC), in which to solve the shortage of pin ports caused by designing a video signal processor in a single IC, a vertical synchronization signal is output and a quasi synchronization signal is input through a single pin port, and an IC and a video signal processing apparatus thereby are provided. According to the design method, by designing a vertical synchronization dividing circuit inside an IC without increasing the number of pins in a video signal processing IC, the present invention can reduce the number of components, material costs, and save the PCB space. In addition, by integrating the vertical synchronization dividing circuit inside an IC, the component difference of a discrete device can be reduced, which enhances IC performance.

Abstract: A video signal processing apparatus A comprises: an adder 107 for generating a second address value S106 which has a predetermined phase difference from a first address value S101 outputted by an address value output means 120 and outputting the same; a selector 108 for selecting either a first address value S101 or a second address value S106 to output as an output signal S107; a vertical synchronizing signal output means 123 for outputting the vertical synchronizing signal S104 to the selector 108; a ROM 109 for outputting first data corresponding to the first address value S101 or second data corresponding to the second address value S106 as a signal S108; a loading hold mode flip-flop 110 for preserving the first data; a loading hold mode flip-flop 111 for preserving the second data; and a hue adjustment means B which adjusts the hue of the video signal by using the output signal S109 of the loading hold mode flip-flop 110 and the output signal S110 of the loading hold mode flip-flop 111.

Abstract: A method and apparatus for adjusting a color difference signal of an image includes a video signal processor. The video signal processor receives a luminance signal and color difference signals representing the image, and accesses a color saturation level from a color saturation level table stored in memory based on the color difference signals. The video signal processor then detects flesh tone in areas of the image based on the luminance signal and the color saturation level, and generates a flesh tone detecting signal based on results of the flesh tone detection.

Abstract: A video signal processor controls aperture correction of the video signal by detecting the occurrence of particular colors in the image produced by the video signal. The particular color, for example, fleshtone, is detected as a ratio of the amplitude of an in-phase color signal and the magnitude of its corresponding quadrature phase color signal. This defines a range of color phases which are classified as the particular color, regardless of their saturation. The detected color is converted into a control signal which changes the amplitude of the aperture correction signal. In one embodiment the control signal has a value of zero if the detected color is within the range of color phases and a value of one otherwise. This control signal is used as a multiplier for the aperture correction signal. In another embodiment, a second range of colors is defined around the defined range.

Abstract: The color video camera has a processing circuit which converts electrical signals obtained from an imager into a luminance signal and color-difference signals. The color video camera further includes a memory which stores a table of values designating color saturation levels and corresponding to a specific hue of a background color. The memory outputs a color saturation level based on the color difference signals obtained by imaging an object on a background of the specific hue. This color saturation level is compared with the luminance signal, and based on the comparison results the luminance signal and color difference signals are separated into components corresponding to the background area and components corresponding to the object area.

Abstract: A flesh-tone area is detected based on color-difference and luminance signals constituting video signals, and luminance correction, color correction, and aperture correction are performed only on the flesh-tone area or a human face area identified in the flesh-tone area. The setting of a focus area or the setting of a photometric area for iris control, automatic gain control, automatic shutter control, etc., in a video camera, is performed with respect to the flesh-tone area or the human face area. Furthermore, based on the color-difference and luminance signals constituting the video signals, a background area is detected, and the video signals are divided into components representing a background area and components representing an object area. An image signal of a desired hue or a still image is superimposed on the detected background area, or special processing is performed on the video signals representing the object area other than the detected background area.