Abstract: An occupant imaging device captures images of occupants inside a vehicle in which a display device having a display area is provided in front of and between a driver's seat and a passenger seat. The occupant imaging device includes an illumination unit that illuminates an area around the face of an occupant seated in a seat, and an imaging unit that captures images of the area around the face of the occupant seated in the seat. The display device includes an outer frame extending on at least left and right sides of the display area. The illumination unit and the imaging unit are arranged in the vertical direction in a region of the outer frame of the display device excluding a passenger seat side portion. The imaging unit captures images of an area around the face of an occupant including at least a driver seated in the driver's seat.

Abstract: An imaging device is provided in a vehicular display device mounted in a vehicle to display information and photographs a passenger of the vehicle. The imaging device includes an imaging unit having a plurality of viewpoint positions provided at vertically different locations in the vehicular display device. The imaging unit is configured to photograph the passenger from a plurality of viewpoints at the plurality of viewpoint positions.

Abstract: A drowsiness level of a driver in a vehicle is determined. A preliminary alert is performed in response to that the drowsiness level is higher than an alert threshold value. A main alert is performed to prompt the driver to wake up from drowsiness as necessary after the preliminary alert. In response to that a predetermined response operation by the driver is detected within a predetermined time after the preliminary alert, the alert threshold value is changed to be higher.

Abstract: A drowsiness level of a driver in a vehicle is determined. A preliminary alert is performed in response to that the drowsiness level is higher than an alert threshold value. A main alert is performed to prompt the driver to wake up from drowsiness as necessary after the preliminary alert. In response to that a predetermined response operation by the driver is detected within a predetermined time after the preliminary alert, the alert threshold value is changed to be higher.

Abstract: An imaging device is provided in a vehicular display device mounted in a vehicle to display information and photographs a passenger of the vehicle. The imaging device includes an imaging unit having a plurality of viewpoint positions provided at vertically different locations in the vehicular display device. The imaging unit is configured to photograph the passenger from a plurality of viewpoints at the plurality of viewpoint positions.

Abstract: An image display control apparatus is disclosed. The image display control apparatus stores first layers for original image data in first planes, combines the first layers into the original image data, records the original image data in an addition plane, and stores second layers for replacement image data in second planes. The second layers in the second planes and the original image data in the addition plane are respectively, synchronously and cyclically inputted to a compositing circuit so that the compositing circuit combines the second set of layers into the replacement image data. In the synchronous and cyclical input, the display of the display device is switched from the original image data to the replacement image data while a manner of combining the original image data and the replacement image data is being gradually changed between consecutive frames.

Abstract: A signal separator for separating luminance and color signals from a composite video signal includes: a first line delay element for delaying the composite video signal by one line period; a second line delay element for delaying the composite video signal by two line periods; an adder element for adding the first and second delay signals; a subtraction element for subtracting the second delay signal from the first delay signal; a control signal generator for passing a part of the addition signal within a predetermined frequency band therethrough; and a gain control element for reducing a level of the subtraction signal based on the control signal.

Abstract: A signal separator for separating luminance and color signals from a composite video signal includes: a first band pass element for passing a part of the composite video signal within a color signal band and within a predetermined frequency band; a second band pass element for passing a part of the first filtered signal within the color signal band and without the predetermined frequency band; and a first subtraction element for subtracting the first filtered signal from the composite video signal, wherein the predetermined frequency band is a frequency range in which the separation of the composite video signal into the color and the luminance signals is difficult.

Abstract: An image display control apparatus is disclosed. The image display control apparatus stores first layers for original image data in first planes, combines the first layers into the original image data, records the original image data in an addition plane, and stores second layers for replacement image data in second planes. The second layers in the second planes and the original image data in the addition plane are respectively, synchronously and cyclically inputted to a compositing circuit so that the compositing circuit combines the second set of layers into the replacement image data. In the synchronous and cyclical input, the display of the display device is switched from the original image data to the replacement image data while a manner of combining the original image data and the replacement image data is being gradually changed between consecutive frames.

Abstract: A moving image portion that indicates a moving object moving not less than a given movement amount and a still image portion other than the moving image portion are distinguished with respect to a video signal. Video display data for displaying the moving image portion is generated by repeatedly using the same video signal by repetition times based on temperature of a liquid crystal panel. Movement display data for displaying movement positions of the moving image portion is then generated based on a video signal obtained after the video signal used for displaying the moving image portion and is combined with the video display data. This achieves an effect similar to that obtained by decreasing a field frequency and decreases a “tail trail” phenomenon of the moving object. Furthermore, the movement display data enables recognition of the almost actual position of the moving object.

Abstract: A display apparatus includes a reflector positioned for obstructing a front view of a driver by using an opaque material, a first imaging unit for imaging a front view of the vehicle, an image generation unit for generating a display image for a portion of the front view that is obstructed by the reflector, an image projection unit for projecting the display image generated by the image generation unit on the reflector, an information acquisition unit for acquiring information to be visually provided for the driver, and a combination unit for combining the information with the display image upon acquiring the information by using the information acquisition unit.

Abstract: An image signal transmission system for use in a vehicle is disclosed. The system includes: a display apparatus configured to display an image in accordance with an image signal; and an image signal transmission apparatus configured to transmit the image signal to the display apparatus. The image signal transmission apparatus includes: a receiving unit configured to receive an analog image signal from outside; a conversion unit configured to convert the analog image signal into a first digital image signal so that the first digital image signal represents the image with a size that matches a display resolution of the display apparatus; and a transmission unit configured to transmit the first digital image signal to the display apparatus.

Abstract: A signal separator for separating luminance and color signals from a composite video signal includes: a first band pass element for passing a part of the composite video signal within a color signal band and within a predetermined frequency band; a second band pass element for passing a part of the first filtered signal within the color signal band and without the predetermined frequency band; and a first subtraction element for subtracting the first filtered signal from the composite video signal, wherein the predetermined frequency band is a frequency range in which the separation of the composite video signal into the color and the luminance signals is difficult.

Abstract: A signal separator for separating luminance and color signals from a composite video signal includes: a first line delay element for delaying the composite video signal by one line period; a second line delay element for delaying the composite video signal by two line periods; an adder element for adding the first and second delay signals; a subtraction element for subtracting the second delay signal from the first delay signal; a control signal generator for passing a part of the addition signal within a predetermined frequency band therethrough; and a gain control element for reducing a level of the subtraction signal based on the control signal.

Abstract: A display apparatus includes a reflector positioned for obstructing a front view of a driver by using an opaque material, a first imaging unit for imaging a front view of the vehicle, an image generation unit for generating a display image for a portion of the front view that is obstructed by the reflector, an image projection unit for projecting the display image generated by the image generation unit on the reflector, an information acquisition unit for acquiring information to be visually provided for the driver, and a combination unit for combining the information with the display image upon acquiring the information by using the information acquisition unit.

Abstract: A moving image portion that indicates a moving object moving not less than a given movement amount and a still image portion other than the moving image portion are distinguished with respect to a video signal. Video display data for displaying the moving image portion is generated by repeatedly using the same video signal by repetition times based on temperature of a liquid crystal panel. Movement display data for displaying movement positions of the moving image portion is then generated based on a video signal obtained after the video signal used for displaying the moving image portion and is combined with the video display data. This achieves an effect similar to that obtained by decreasing a field frequency and decreases a “tail trail” phenomenon of the moving object. Furthermore, the movement display data enables recognition of the almost actual position of the moving object.

Abstract: An interpolation unit converts an inputted image with pixel precision into an interpolated image with sub-pixel precision. A brightness/chroma-decomposing unit decomposes the interpolated image into brightness components with sub-pixel precision and the other. An image-processing unit emphasizes components belonging to a specific frequency band of the decomposed brightness components. Edges neither enlarge nor look jaggy. A display result with rich clearness and high quality is obtained.