Signal generating method, signal generating device and program
A signal generation and signal technology, applied in measurement devices, instruments, network data retrieval, etc., can solve problems such as difficult to achieve cost and insufficient computing power
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Embodiment approach 1
[0593] Embodiment 1 will be described below.
[0594] (Observation of brightness of light emitting part)
[0595] There is proposed an imaging method that does not expose all imaging elements at the same timing when capturing one image, but starts / stops exposure at different timings for each imaging element. Fig. 1 is an example in which imaging elements arranged in a row are exposed at the same time, and the exposure start timing is shifted in the order of the row from the nearest to the farthest to take an image. Here, it is called an exposure line of an imaging element exposed at the same time, and a row of pixels on an image corresponding to the imaging element is called a bright line.
[0596] When using this imaging method to image a flickering light source on the entire surface of the imaging element, if figure 2 In this way, bright lines (lines of brightness and darkness of pixel values) along the exposure line are generated on the captured image. By recognizing th...
Embodiment approach 2
[0628]In this embodiment, each application example using a receiver such as a smartphone as the information communication device K90 of the first embodiment and a transmitter that transmits information as a blinking pattern of a light source such as LED and / or organic EL will be described.
[0629] Figure 7 It is a diagram showing an example of each mode of the receiver of this embodiment.
[0630] In the normal shooting mode, the receiver 8000 acquires a normal shooting image by shooting at a shutter speed of, for example, 1 / 100 second, and displays the normal shooting image on the monitor. In this case, the subject and its surroundings, such as a street lamp or a signboard constituting a signboard of a store, for example, are clearly reflected in the normal captured image.
[0631] In addition, the receiver 8000 acquires a visible light communication image by taking pictures at a shutter speed of, for example, 1 / 10000 second in the visible light communication mode. For ex...
Embodiment approach 3
[0782] In this embodiment, each application example using a receiver such as a smart phone and a transmitter that transmits information as a blinking pattern of LED or organic EL in Embodiment 1 or 2 described above will be described.
[0783] Figure 54 It is a flowchart showing an example of the operation of the receiver according to Embodiment 3.
[0784] First, the receiver receives a signal with an illuminance sensor (8101). Next, the receiver acquires information such as location information from the server based on the received signal (8102). Next, the receiver activates the image sensor capable of imaging the light receiving direction of the illuminance sensor (8103). Next, the receiver receives part or all of the signal with the image sensor, and checks whether the part or all is the same signal as the signal received by the illuminance sensor (8104). Next, the receiver estimates the position of the receiver based on the position of the transmitter in the captured ...
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