摘要:
To provide an image processing apparatus which reduces, using a temporal noise removal scheme, image block distortion or noise and temporal flickering and fluctuation phenomena. The image processing apparatus (1) removing noise in an input image by adding a reference image to the input image includes a motion estimation unit (20) which generates motion information indicating a motion estimated for the input image; a motion compensation unit (30) which generates a after motion compensation second image corresponding to a before motion compensation first image by performing motion compensation using the generated motion information; a flatness degree calculation unit (40) which calculates a flatness degree of the input image; a blending rate calculation unit (53) which calculates addition rates for the input image, first image, and second image, using the calculated flatness degree; and a pixel addition unit (60) which adds the respective images according to the addition rates.
摘要:
An image pickup device includes an image pickup element; a lens optical system including a focus lens; a driving section for driving one of the image pickup element and the focus lens so as to change a distance between the image pickup element and the focus lens; a displacement control section configured to output an instruction to the driving section to control displacement of the image pickup element or the focus lens which is driven, based on a prescribed displacement pattern; and a synchronization section configured to control the displacement control section based on timing for exposing the image pickup element.
摘要:
Blur correction device (100) includes: a blur information generation unit (203) which generates blur information based on sensor data indicating camera motion; a blur correction unit (204) which corrects blur in a captured image, based on the blur information, to generate a candidate corrected image; an evaluation value calculation unit (205) which calculates an evaluation value indicating a blur correction level for the candidate corrected image; a termination judgment unit (206) which judges whether the blur correction should be terminated, based on a predetermined condition; and a blur information updating unit which updates the blur information, when the blur correction should not be terminated. When the blur information is updated, the blur correction unit (204) corrects the blur, based on the updated blur information, to generate a new candidate corrected image. When the blur correction should be terminated, the termination judgment unit (206) determines the corrected image from the candidate corrected images, based on the evaluation value.
摘要:
A method and apparatus for motion blur and ghosting prevention in imaging system is presented. A residue image is computed by performing spatial-temporal filter with a set of absolute image difference of image pairs from input images. A noise adaptive pixel threshold is computed for every pixel based on noise statistics of image sensor. The residue image and the noise adaptive pixel threshold are used to create a motion masking map. The motion masking map is used to represent motion and non-motion pixels in pixels merging. The pixels merging step is performed to generate an output image by considering the motion pixels where the motion pixels are performed separately. The resulting output image having no or less motion blur and ghosting artifacts can be obtained, even the input images having different degree of motion blur between each of the image, while the complexity is low. It is preferred that the current invention is applied in the Bayer raw domain. The benefit is reduced computation and memory because only 1 color component is processed for each pixel. Another benefit is higher signal fidelity because processing in the Bayer raw domain is unaffected by demosaicing artifacts, especially along edges. However, the current invention can also be applied in RGB domain.
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 image processing apparatus is an image processing apparatus for measuring a subject distance using a plurality of captured images acquired by capturing the same subject in a plurality of imaging states in succession of time, and includes a target motion amount estimation unit that estimates a target motion amount representing an amount of shift in subject position between first and second images among the captured images, the first image being captured in a first imaging state and a second image being captured in a second imaging state different from the first imaging state, a corrected image generation unit that generates a corrected image by performing motion compensation on the second image based on the target motion amount, and an image processing unit that performs image processing such as measuring a subject distance or generating an HDR image, using the first image and the corrected image.
摘要:
Blur correction device (100) includes: a blur information generation unit (203) which generates blur information based on sensor data indicating camera motion; a blur correction unit (204) which corrects blur in a captured image, based on the blur information, to generate a candidate corrected image; an evaluation value calculation unit (205) which calculates an evaluation value indicating a blur correction level for the candidate corrected image; a termination judgment unit (206) which judges whether the blur correction should be terminated, based on a predetermined condition; and a blur information updating unit which updates the blur information, when the blur correction should not be terminated. When the blur information is updated, the blur correction unit (204) corrects the blur, based on the updated blur information, to generate a new candidate corrected image. When the blur correction should be terminated, the termination judgment unit (206) determines the corrected image from the candidate corrected images, based on the evaluation value.
摘要:
An image processing device appropriately extracts an entire object from an image even if the object is not completely included in an initial region designated by a user. The image processing device includes: a designation unit designating a position on the image; a setting unit setting a first combination consisting of a first object region candidate and a first background region candidate, and a second combination; a histogram generation unit generating a normalized color histogram of each of the regions; a similarity calculation unit calculating a similarity regarding each of the combinations; and a selection unit configured to select a combination from the first and second combinations so that the selected combination has the similarity lower than the similarity of the non-selected combination.
摘要:
Provided is a tracking object selection apparatus (1a) which selects a tracking object (103xm). The tracking object selection apparatus (1a) includes a synthesis unit (306) which synthesizes an input image (9Ib) and an image (93) so that the image is disposed at a predetermined position (92P), a display unit (307), and a selection unit (308) which selects, as the tracking object (103xm) in a predetermined process, a detected object (301x) when an operation (104L2) is performed on the image (92) displayed at the predetermined position (92P).
摘要:
A method and apparatus for motion blur and ghosting prevention in imaging system is presented. A residue image is computed by performing spatial-temporal filter with a set of absolute image difference of image pairs from input images. A noise adaptive pixel threshold is computed for every pixel based on noise statistics of image sensor. The residue image and the noise adaptive pixel threshold are used to create a motion masking map. The motion masking map is used to represent motion and non-motion pixels in pixels merging. The pixels merging step is performed to generate an output image by considering the motion pixels where the motion pixels are performed separately. The resulting output image having no or less motion blur and ghosting artifacts can be obtained, even the input images having different degree of motion blur between each of the image, while the complexity is low. It is preferred that the current invention is applied in the Bayer raw domain. The benefit is reduced computation and memory because only 1 color component is processed for each pixel. Another benefit is higher signal fidelity because processing in the Bayer raw domain is unaffected by demosaicing artifacts, especially along edges. However, the current invention can also be applied in RGB domain.