Abstract: A projection device of the present disclosure includes a projection unit for radiating on a projection target object in a time-divided manner, in one frame period of a video, a visible light image that is based on a video signal and an invisible light image for acquiring predetermined information, and a controller for controlling an order of a radiation period for the visible light image and a radiation period for the invisible light image in the one frame period. The controller includes, as a radiation mode, a first mode for radiating the invisible light image in a manner of distributing the invisible light image over a plurality of periods within the one frame period.

Abstract: An image projection device according to the present disclosure includes a projection optical unit, a projector for projecting an image that is based on a video signal on a projection target object through the projection optical unit, a detector for detecting a predetermined object from the image indicated by the video signal, and a controller for specifying, based on a position of the detected object in the image, a projection position of the object, and controlling the projection optical unit based on the projection position.

Abstract: A projection device of the present disclosure includes a projection unit for radiating on a projection target object in a time-divided manner, in one frame period of a video, a visible light image that is based on a video signal and an invisible light image for acquiring predetermined information, and a controller for controlling an order of a radiation period for the visible light image and a radiation period for the invisible light image in the one frame period. The controller includes, as a radiation mode, a first mode for radiating the invisible light image in a manner of distributing the invisible light image over a plurality of periods within the one frame period.

Abstract: A video signal processing device is a video signal processing device for converting an input first video signal to a second video signal, and inputting to a display panel, the video signal processing device including an input unit for receiving an input of a set value of the second video signal to be converted and output in correspondence to a signal level for each of a plurality of sample points of the signal level of the first video signal; a calculating unit for interpolation calculating the signal level of the second video signal to be converted and output for the signal level between each sample points; and a control unit for transferring a conversion table including a set value of the second video signal for each sample point of the first video signal and an interpolation calculated interpolation value between each sample points to a memory unit; wherein the memory unit converts to the second video signal of a corresponding signal level based on the conversion table according to the signal level of the

Abstract: A video signal processing device is a video signal processing device for converting an input first video signal to a second video signal, and inputting to a display panel, the video signal processing device including an input unit for receiving an input of a set value of the second video signal to be converted and output in correspondence to a signal level for each of a plurality of sample points of the signal level of the first video signal; a calculating unit for interpolation calculating the signal level of the second video signal to be converted and output for the signal level between each sample points; and a control unit for transferring a conversion table including a set value of the second video signal for each sample point of the first video signal and an interpolation calculated interpolation value between each sample points to a memory unit; wherein the memory unit converts to the second video signal of a corresponding signal level based on the conversion table according to the signal level of the

Abstract: In an area where the images change gradually, accurate detection of a still image area and a motion image one has been difficult. A motion detector comprises a small amplitude area detecting means (9) for measuring the amplitudes in an area including and adjoining predetermined pixel of the image, a motion information extracting means (10) for measuring the temporal variation of the image, a comparing means (2) for judging from the measured variation at least whether the predetermined pixel is a motion pixel or not, a motion image pixel counting means (3) and a motion signal generating means (11) for generating a motion signal related to the predetermined pixel according to the result of the judgment The smaller are the measured amplitude, the more are corrected the gain of the variation at least related to the predetermined pixel, thus measuring temporal variation of the image.

Abstract: There is provided a low-cost scanning line converting circuit being capable of properly converting the number of scanning lines for a video signal at various conversion ratios. Under the control of a write control signal generating circuit, an original video signal is written, on a scanning-line basis, in individual line memories. A write operation is performed to each of the line memories based on a clock and a horizontal synchronizing signal on the input side, while a read operation is performed to each of the line memories based on a clock and a horizontal synchronizing signal on the output side. A selecting circuit selects, based on a line select signal, at least one from scanning line signals stored in the individual line memories necessary to generate a post-conversion scanning line signal and outputting the selected scanning line signal.

Abstract: The invention includes an interpolation circuit for generating interpolation scanning lines by averaging adjacent scanning lines from an interlaced input video signal. Also included is a motion detecting circuit for detecting the amount of motion of the input video signal. The output signal of the interpolation circuit is connected to an amplitude control circuit controlled by the amount of motion from the motion detecting circuit. The input video signal terminal and the output terminal of the amplitude control circuit are connected to a converter circuit which performs time division multiplexing of the interlaced input video scanning lines and interpolation scanning lines by using a clock 2fH from a control signal input terminal. The clock has a frequency which is two times the horizontal scanning frequency. The motion detecting circuit detects the amount of motion and if the amount of motion is small, amplitude control of the interpolation scanning lines is not-performed.