摘要:
This 3D image capture device includes: a light transmitting section 1 with first and second light transmitting areas 1L and 1R; an image sensor 2a with a plurality of unit blocks; an imaging section 3; and an image processing section which generates multi-viewpoint images based on photoelectrically converted signals supplied from the image sensor 2a. If functions representing the respective spectral transmittances of the first light transmitting area 1L, the second light transmitting area 1R, a first type of pixel, and a second type of pixel with respect to the wavelength λ of visible radiation are identified by TL(λ), TR(λ), T1(λ), and T2(λ), respectively, TL(λ)≠TR(λ) and T1(λ)≠T2(λ) are satisfied, and each of TL(λ), TR(λ), T1(λ) and T2(λ) has at least one local maximum value and at least one local minimum value within each of red, green and blue wavelength ranges.
摘要:
A 3D image capture device includes: a light transmitting section 2 with m transmitting areas (where m is an integer and m≧2) that have different spectral transmittance characteristics; and an image sensor 1 which is arranged to receive light rays that have been transmitted through the m transmitting areas and in which unit elements are arranged. Each unit element includes n photosensitive cells (where n is an integer and n≧m) and n transmitting filters with mutually different spectral transmittance characteristics which are arranged so as to face the n photosensitive cells. The image capture device further includes an image processing section which modifies an n×m matrix that is defined by the respective spectral transmittance characteristics of the m transmitting areas and the n transmitting filters by changing the angle between at least two out of m column vectors of the n×m matrix and which generates multi-viewpoint images using the modified n×m matrix.
摘要:
This image capture device includes: an image sensor 2 including first and second types of pixels that have mutually different spectral transmittance characteristics; a light-transmitting section 1 that is arranged to face the imaging area of the image sensor 2; and an imaging section 3 that includes at least a first imaging area having a first focal length and a second imaging area having a second focal length that is longer than the first focal length. The light-transmitting section 1 has a first light-transmitting area 1a comprised of multiple partial areas that are separated from each other and a second light-transmitting area 1b having a different spectral transmittance characteristic from the first light-transmitting area 1a. The distance from the light-transmitting section 1 to the imaging section 3 is equal to the first focal length f1 and the distance from the imaging area of the image sensor 2 to the imaging section 3 is equal to the second focal length f2.
摘要:
A 3D image capture device includes: a light transmitting member 2 with polarizing areas and a non-polarizing area; a solid-state image sensor 1 for receiving the light transmitted through the member 2; an imaging section 3 for producing an image on the imaging area 1a of the sensor 1; and an image generating section. The member 2 has n polarizing areas P(1), P(2), . . . and P(n) (where n is an integer and n≧2), each of which transmits only a light ray polarized in a particular direction, and a non-polarizing area P(n+1) that transmits any light ray irrespective of its polarization direction. Those n polarizing areas have mutually different transmission axis directions. The sensor 1 includes a pixel array, divided into pixel blocks each consisting of (n+1) pixels, and a filter array including n polarization filters arranged so as to face n out of the (n+1) pixels and having different transmission axis directions. The image generating section generates images based on the light rays that have entered the n polarizing areas and the non-polarizing area using pixel signals supplied from those pixels.
摘要:
A 3D image capture device according to an aspect of the present invention includes: a light-transmitting section 2 including N different kinds of first filters C1, C2, C3 (where N is an integer that is equal to or greater than two) which are arranged so that light rays are incident on those filters in parallel with each other and of which the transmittances have mutually different wavelength dependences; an image sensor 1 that includes N second filters, of which the transmittances have mutually different wavelength dependences; and an image capturing driving section that drives the light-transmitting section 2 so that image capturing sessions are carried out M times sequentially (where M is an integer that is equal to or greater than N). The image capturing driving section drives the light-transmitting section 1 so that each of the first filters C1, C2, C3 changes its positions from one of N positions that have been set in advance with respect to the image sensor 1 after another every time the image capturing session is carried out.
摘要:
The solid-state image sensor of this invention includes an array of pixels and light-transmitting portions 30a, 30b, 30c, 30d. The array is divided into unit pixel blocks, each of which is made up of N pixels (where N is an integer that is equal to or greater than two). The light-transmitting portions are arranged so that each light-transmitting portion faces an associated one of the pixels. Each of the light-transmitting portions is divided into M striped areas (where M is an integer that is equal to or greater than two). The respective areas have had their optical transmittances set independently of each other. The arrangement pattern of the optical transmittances of the light-transmitting portions 30a, 30b, 30c, 30d vary from one block to another. The image capture device of the invention further includes a shifting section for shifting the image in a first direction on an imaging area, and reads pixel signals before and after the image is shifted, thereby generating an image, of which the resolution is higher than what is defined by the pixel pitch.
摘要:
The image processing device includes: a storage unit (211) holding intensity gradient vectors Vr, position vectors Rr, and voting vectors Ur of a reference image; an intensity gradient vector calculation unit (212) which calculates intensity gradient vectors Vs of a search image; and a position determination unit (213) which determines a position of the reference image in the search image. The position determination unit (213) includes: a sampling unit (214) which thins out a part of the intensity gradient vectors Vs and/or the voting vectors Ur; an origin position estimation unit (215) which locates voting vectors Ur at each starting position of intensity gradient vectors Vs and estimates ending positions of the voting vectors Ur as candidate points; and a re-verification unit (216) which locates the position vectors Rr at each candidate point and determines a candidate point having most intensity gradient vectors Vs at ending positions of the position vectors Rr as an origin position.
摘要:
A depth estimating image capture device as an embodiment of this invention includes: an image sensor 2 with photosensitive cells 10 arranged on its image capturing plane; an optical lens arranged to condense light on the plane; a light-transmitting member 1 arranged on the plane; and a signal processing section that processes signals supplied from the cells 10. The member 1 includes a first mirror 1a inside to reflect the light at least partially and a second mirror 1b with the same reflection property as the first mirror 1a on its upper surface. The first mirror 1a has a reflective surface tilted with respect to the upper surface of the member 1. The second mirror 1b has a reflective surface that is parallel to the upper surface. The first and second mirrors 1a and 1b are arranged so that a light beam coming from a point on a subject through the lens is reflected from the first mirror 1a and from the second mirror 1b and irradiates some area on the image capturing plane to make the irradiated area change according to the depth of the point on the subject.
摘要:
This 3D image capture device includes an image capturing section 100 and a signal processing section 200. The image capturing section 100 includes a light-transmitting section 2 with first, second and third transmitting areas that have mutually different transmission wavelength ranges, a solid-state image sensor 1 that is arranged to receive the light transmitted through the light-transmitting section, and an optical system 3 that produces an image on an imaging area of the solid-state image sensor. The signal processing section 200 includes an image generating section 7 that generates three image signals, representing the quantities of light rays that have been incident on the first, second and third transmitting areas, based on the output signal of the solid-state image sensor 1, and a parallax estimating section 40 that estimates parallax based on the three image signals.
摘要:
A color representation technique to be effectively applicable to a pixel shifted arrangement to realize high sensitivity and high resolution is provided by using a dipersive prism or diffraction.A dispersive element is provided for an image sensor in which photosensitive cells are arranged to be shifted from each other by a half pitch both horizontally and vertically. The dispersive element makes at least G rays fall straight down to a pixel right under itself and also makes either R rays or B rays incident on an adjacent pixel. Meanwhile, a photosensitive cell, for which no dispersive element is provided, receives directly incident light, too. Color information can be obtained by making computations on photoelectrically converted signals provided by these pixels.