IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0288765
(2011-11-03)
|
등록번호 |
US-9030550
(2015-05-12)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Adobe Systems Incorporated
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
92 |
초록
▼
Methods and apparatus for capturing and rendering high-quality photographs using relatively small, thin plenoptic cameras. Plenoptic camera technology, in particular focused plenoptic camera technology including but not limited to super-resolution techniques, and other technologies such as solid imm
Methods and apparatus for capturing and rendering high-quality photographs using relatively small, thin plenoptic cameras. Plenoptic camera technology, in particular focused plenoptic camera technology including but not limited to super-resolution techniques, and other technologies such as solid immersion lens (SIL) technology may be leveraged to provide thin form factor, megapixel resolution cameras suitable for use in mobile devices and other applications. In addition, at least some embodiments of these cameras may also capture radiance, allowing the imaging capabilities provided by plenoptic camera technology to be realized through appropriate rendering techniques. Hemispherical SIL technology, along with multiple main lenses and a mask on the photosensor, may be employed in some thin plenoptic cameras. Other thin cameras may include a layer between hemispherical SILs and the photosensor that effectively implements superhemispherical SIL technology in the camera.
대표청구항
▼
1. A camera, comprising: a photosensor configured to capture light projected onto the photosensor, the photosensor comprising a plurality of pixels;a plurality of objective lenses each configured to refract light from a scene located in front of the camera to form an image of the scene at an image p
1. A camera, comprising: a photosensor configured to capture light projected onto the photosensor, the photosensor comprising a plurality of pixels;a plurality of objective lenses each configured to refract light from a scene located in front of the camera to form an image of the scene at an image plane of the plurality of objective lenses, the image plane being a same image plane for each of the plurality of objective lenses; anda plurality of solid immersion lenses (SILs) positioned between the plurality of objective lenses and the photosensor, each SIL sampling a respective region of the image of the scene formed at the image plane by the plurality of objective lenses;each SIL being configured to project a respective region of the image of the scene sampled by the respective SIL through holes of an opaque mask and onto a separate location on the photosensor, each location including one or more pixel elements of the photosensor, and each SIL affecting light passing through the SIL to reduce a wavelength of the light according to a refractive index of the SIL that is greater than or equal to 1.5, reduction of the wavelength being effective to reduce a size of pixels projected onto the respective one or more pixel elements to a size of the holes in the opaque mask, a pixel size being less than 500 nanometers (nm) at each pixel element, 500 nm being approximately the wavelength of light. 2. The camera as recited in claim 1, wherein the opaque mask is disposed on the surface of the photosensor and between the SILs and the pixel elements, and wherein each of the holes corresponds to a respective pixel element on the photosensor, the size of each of the holes corresponding to the pixel size produced by the SILs. 3. The camera as recited in claim 1, further comprising a plurality of color filters, each color filter located proximate to a respective one of the plurality of objective lenses and affecting light passing through the respective objective lens. 4. The camera as recited in claim 3, wherein the plurality of SILs are each selected according to one or more optical characteristics to account for differences in the wavelength of light as affected by the plurality of color filters. 5. The camera as recited in claim 1, wherein each SIL corresponds to one and only one pixel element. 6. The camera as recited in claim 1, wherein each SIL corresponds to two or more pixel elements. 7. The camera as recited in claim 6, wherein each SIL corresponds to one and only one of the plurality of objective lenses. 8. The camera as recited in claim 1, wherein the refractive index of the SIL corresponds to a material of which the SIL is composed. 9. The camera as recited in claim 8, wherein the refractive index of the material of which the SIL is composed is greater than or equal to 1.5. 10. The camera as recited in claim 1, wherein the pixel size produced by the SILs is within a range of approximately 50 nm to approximately 100 nm. 11. The camera as recited in claim 1, wherein the SILs are hemispherical SILs. 12. The camera as recited in claim 11, further comprising a layer of material located between the hemispherical SILs and the photosensor, wherein the refractive index of the material of which the layer is composed is approximately the same as the refractive index n of the hemispherical SILs, and wherein the layer of material is of thickness RIn, where R is the radius of the hemispherical SILs, wherein the hemispherical SILs in combination with the layer effectively form superhemispherical SILs. 13. The camera as recited in claim 1, wherein raw image data captured by the photosensor is configured to be processed according to a super-resolution technique to render a high-resolution image of the scene. 14. The camera as recited in claim 1, wherein the camera is 5 millimeters (mm) or less in thickness. 15. The camera as recited in claim 1, wherein the camera is 3 millimeters (mm) or less in thickness. 16. A method, comprising: receiving light from a scene at an objective lens array of a camera, the objective lens array comprising a plurality of lenses;refracting light from each lens in the objective lens array to form an image of the scene at an image plane of the objective lens array, the image plane being a same image plane for each of the plurality of lenses comprising the objective lens array;receiving light from the image plane at a plurality of solid immersion lenses (SILs) positioned between the objective lens and a photosensor and proximate to the photosensor, each SIL sampling a respective region of the image of the scene formed at the image plane by the objective lens array;receiving light from the plurality of SILs at the photosensor, each SIL projecting a respective region of the image of the scene sampled by the respective microsphere onto a separate location on the photosensor, each location including one or more pixel elements of the photosensor, and each SIL affecting light passing through the SIL to reduce a wavelength of the light according to a refractive index of the SIL that is greater than or equal to 1.5, reduction of the wavelength being effective to reduce a size of pixels projected onto the respective one or more pixel elements to produce a pixel size of less than 500 nanometers (nm) at each pixel element, 500 nm is being approximately the wavelength of light. 17. The method as recited in claim 16, wherein the camera further includes an opaque mask on the surface of the photosensor and between the SILs and the pixel elements, wherein the mask includes a plurality of holes, each hole corresponding to a respective pixel element on the photosensor, and each hole of a size corresponding to the pixel size produced by the SILs. 18. The method as recited in claim 16, wherein the camera further includes a plurality of color filters, each color filter located proximate to a respective one of the plurality of objective lenses and affecting light passing through the respective objective lens, and wherein the plurality of SILs are each selected according to one or more optical characteristics to account for differences in the wavelength of light as affected by the plurality of color filters. 19. The method as recited in claim 16, wherein the camera further includes a layer of material located between the hemispherical SILs and the photosensor, wherein the refractive index of the material of which the layer is composed is approximately the same as the refractive index n of the hemispherical SILs, and wherein the layer of material is of thickness R/n, where R is the radius of the hemispherical SILs, and wherein the hemispherical SILs in combination with the layer effectively form superhemispherical SILs. 20. The method as recited in claim 16, further comprising: capturing a plenoptic image of the scene at the photosensor, wherein the plenoptic image includes each separate region of the image of the scene in a separate region of the plenoptic image; andprocessing the captured plenoptic image according to a super-resolution technique to render a high-resolution image of the scene. 21. The method as recited in claim 16, wherein the camera is 5 millimeters (mm) or less in thickness.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.