In-vivo imaging system and body-insertable apparatus

An in-vivo image-capturing system, comprising:

• a body-insertable apparatus that is introduced into a subject;
• and
• a receiving device that receives a wireless signal transmitted from the body-insertable apparatus, wherein
• the body-insertable apparatus includes
• a light-receiving means including a plurality of light-receiving elements each having a receiving wavelength spectrum,
• a plurality of light-emitting means having a plurality of emission wavelength spectra, the light-emitting means including a near ultraviolet light source whose peak of the emission intensity is near ultraviolet light with a wavelength deviated, from an emission wavelength spectrum that is associated with the receiving wavelength spectrum, by a predetermined wavelength and including a yellow light source whose peak of the emission intensity is yellow,
• a selecting means for selecting, from among the light-emitting means, a light-emitting means corresponding to the near ultraviolet light source and a light-emitting means corresponding to the yellow light source,
• an image creating means for creating a normal-light image in accordance with a combined flat-shaped wavelength spectrum combined using the light-receiving means or creating a special-light image in accordance with a combined sharp wavelength spectrum combined using a pixel that receives blue-color-component light of the light-receiving means and a pixel that receives green-color-component light of the light-receiving means, the light being obtained at the emission of light when the near ultraviolet light source and the yellow light source are selected using the selecting means,
• a transmitting means for transmitting the normal-light image or the special-light image created by the image creating means, and
• a controlling means for controlling driving of the light-receiving elements in accordance with selection performed by the selecting means.

A body-insertable apparatus comprising:

• a light-receiving unit that includes a plurality of light-receiving elements each having a receiving wavelength spectrum;
• a plurality of light-emitting units having a plurality of emission wavelength spectra, the light-emitting units including a near ultraviolet light source whose peak of the emission intensity is near ultraviolet light with a wavelength deviated, from a receiving wavelength spectrum that is associated with the receiving wavelength spectrum, by a predetermined wavelength and including a yellow light source whose peak of the emission intensity is yellow;
• a selection unit that can select, from among the light-emitting units, a light-emitting unit corresponding to the near ultraviolet light source and a light-emitting unit corresponding to the yellow light source;
• an image creating unit that creates a normal-light image in accordance with a combined flat-shaped wavelength spectrum combined using the light-receiving unit or that creates a special-light image in accordance with a combined sharp wavelength spectrum combined using a pixel that receives blue-color-component light of the light-receiving unit and a pixel that receives green-color-component light of the light-receiving unit, the light being obtained at the emission of light when the near ultraviolet light source and the yellow light source are selected using the selection unit;
• a transmitting unit that transmits the normal-light image or the special-light image created by the image creating unit;
• and
• a control unit that controls driving of the light-receiving elements in accordance with selection performed by the selection unit.

A body-insertable apparatus comprising:

• a light-receiving means for receiving light including a plurality of light-receiving elements each having a receiving wavelength spectrum;
• a plurality of light-emitting means for emitting light including a plurality of emission wavelength spectra, the light-emitting means including a near ultraviolet light source whose peak of the emission intensity is near ultraviolet light with a wavelength deviated, from a receiving wavelength spectrum that is associated with the receiving wavelength spectrum, by a predetermined wavelength, and including a yellow light source whose peak of the emission intensity is yellow;
• a selecting means for selecting, from among the plurality of light-emitting means, light-emitting means corresponding to the near ultraviolet light source and the yellow light source;
• an image creating means for creating a normal-light image in accordance with a combined flat-shaped wavelength spectrum combined using the light-receiving means or creating a special-light image in accordance with a combined sharp wavelength spectrum combined using a pixel that receives blue-color-component light of the light-receiving means and a pixel that receives green-color-component light of the light-receiving means, the light being obtained at the emission of light when the near ultraviolet light source and the yellow light source are selected using the selection means;
• a transmitting means for transmitting the normal-light image or the special-light image created by the image creating means;
• and
• a controlling means for controlling driving of the light-receiving elements in accordance with selection performed by the selection means.