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Class 396/128 - Image correlation type


Subclass of Class 396 - Photography
Definition: Subject matter wherein the processing circuit generates
No. of patents: 153
Last issue date: 10/11/2011


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NumberTitleIssue Date
8036523Focus adjustment device, imaging device and focus adjustment method
A focus adjustment device includes an image sensor that includes imaging pixels for capturing an image formed via an imaging optical system and focus detection pixels for detecting a focus adjustment state at the imaging optical system through a first pupil division...
10/11/2011
7995910Imaging device and focal point detector
A focal point detector includes: a condenser lens for transmitting a light image from an optical system; and a distance measurement sensor group for receiving a luminous flux which has passed through the condenser lens. The sensor group includes a first distance mea...
08/09/2011
7941042Auto-focus method, medium, and apparatus for image-capturing
An auto-focus method, medium, and apparatus for image-capturing. The auto-focus method includes obtaining a first image by placing a focus lens of a corresponding image-capturing apparatus at a first fixed position, obtaining a second image by placing the focus lens...
05/10/2011
7920782Imaging device
An imaging device having a shooting optical system, including an imaging element having a pixel array capable of generating image signals regarding light from a subject coming through the shooting optical system, and a focus-detection pixel line having pairs of pixe...
04/05/2011
7844176Imaging device, and control method for imaging device
An imaging device comprising a first contrast AF unit that obtains contrast information of a subject image from subject image data, and guides a photographing lens to within a first in-focus permissible based on the contrast information; a phase difference AF unit f...
11/30/2010
7822334Imaging device and in-focus control method
An imaging device includes an imaging unit that obtains an image signal relating to a subject, a driving unit that drives a focus lens, a first detecting unit that performs focus detection based on a contrast detection method to detect an in-focus position of the fo...
10/26/2010
7672580Imaging apparatus and method for controlling display device
An imaging apparatus automatically detects an object and displays information on a display device based on a comparison between detected data and memorized (stored) data. The imaging apparatus includes a detecting circuit and a memorizing circuit. The detecting circ...
03/02/2010
7620312Focus detection apparatus and signal processing method for focus detection
A focus detection apparatus includes an image sensor that applies photoelectric conversion to incident light and accumulates charge, a first output unit that outputs electric signals based on the charge accumulated in the image sensor through multiple channels, and ...
11/17/2009
7430369Image capture apparatus and control method therefor
An image capture apparatus, such as a digital camera or a digital still camera, is capable of easily capturing an optimal image by determining a state of a subject via image processing during capturing, and executing re-capturing or giving a warning to prompt re-cap...
09/30/2008
7403707Method for estimating camera settings adaptively
A camera is configured to adaptively determine camera settings. The camera includes a plurality of sensors elements configured to acquire a current image of a scene according to a current set of camera settings. A number of sensor elements having a set of desirable ...
07/22/2008
7362368Perfecting the optics within a digital image acquisition device using face detection
Within a digital acquisition device, acquisition parameters of a digital image are perfected as part of an image capture process using face detection within said captured image to achieve one or more desired image acquisition parameters. Default values are determine...
04/22/2008
7358999Focus sensing apparatus, focus sensing method using phase-differential detection and computer-readable storage medium therefor
An apparatus comprising: an image sensing device having a plurality of pixels for receiving light from an object upon separating the light into respective ones of different color components; an optical guidance device for accepting light rays in different directions...
04/15/2008
7330241Optical distance measuring sensor, self-propelled cleaner, and air conditioner
An optical distance measuring device has a substrate (10), a plurality of light emitting elements (1) mounted to the substrate (10), a plurality of light emitting-side lenses (2) placed in one-to-one correspondence with the light emitting...
02/12/2008
7102675Photoelectric conversion device, focus detection device, method of controlling these devices, and storage medium
An object of this invention is to provide a photoelectric conversion device which can always appropriately perform charge accumulation independently of the luminance levels of objects, can read out an image signal by effectively using the dynamic range, can attain a...
09/05/2006
7099574Distance measuring apparatus
Correlation value calculation is carried out while a pair of window ranges being shifted using uncorrected AF data, and a pair of window ranges providing the highest correlation value is determined. Then, the difference between the smallest values in the respective ...
08/29/2006
7071985Optical device and method for selecting object of focus
A camera capable of automatically detecting a main object in a sensed image. A distance distribution generation unit discriminates a plurality of areas in the sensed image on the basis of a predetermined condition, and a main object area determination unit automatic...
07/04/2006
7068722Content adaptive video processor using motion compensation
A system and method for providing a method for reducing artifacts in a video sequence of image frames is disclosed. The method and system include classifying scenes in the sequence of image frames, analyzing the content of the image frames and performing temporal fi...
06/27/2006
7054550Rangefinder apparatus
A rangefinder apparatus includes an effective minimum value certifying unit for comparing a minimum value, exhibiting the smallest value in correlation values calculated for the each rangefinding area, with a reference value for a degree of correlation and certifyin...
05/30/2006
7042421Method for advanced imaging in augmented reality
The invention is a method for displaying otherwise unseen objects and other data using augmented reality (the mixing of real view with computer generated imagery). The method uses image parameters (such as field of view, focus, aperture, and shading) that affect the...
05/09/2006
7006140Digital still camera with shifting focus lens
A digital still camera of the present invention has a photographing optical system, a body, an image sensor, a half mirror, a phase difference focus detector. The image sensor is arranged in the body and backward of the photographing optical system along an optical ...
02/28/2006
6996291Systems and methods for correlating images in an image correlation system with reduced computational loads
After one or both of a pair of images are obtained, an auto-correlation function for one of those images is generated to determine a smear amount and possibly a smear direction. The smear amount and direction are used to identify potential locations of a peak portio...
02/07/2006
6940545Face detecting camera and method
A method for determining the presence of a face from image data includes a face detection algorithm having two separate algorithmic steps: a first step of prescreening image data with a first component of the algorithm to find one or more face candidate regions of t...
09/06/2005
6933978Focus detecting device with photoelectric conversion portion having microlens and with light blocking portion having first and second openings
A focus detecting device comprises a first photoelectric conversion section for performing photoelectric conversion of a light beam emitted from a first pupil area of a image pickup optical unit, a second photoelectric conversion section for performing photoelectric...
08/23/2005
6927376Autofocusing method for telescopes pertaining to surveying equipment
The invention relates to an autofocusing method, particularly for telescopes for surveying instruments which are fitted with image sensors that resolve the image signal into individual image elements (pixels), such as CCD lines and/or matrices as well as CMOS image ...
08/09/2005
6859620Rangefinder apparatus and camera equipped therewith
A rangefinder apparatus forms an image of light from an object to be subjected to rangefinding onto a pair of line sensors, each line sensor including light-detecting elements, and generates autofocus (AF) data for computing a correlation value from signals from the...
02/22/2005
6829434Distance measuring apparatus
In the distance measuring apparatus which uses a passive AF sensor and determines the subject distance by carrying out correlation value calculation according to AF data obtained from a pair of line sensors of the AF sensor to detect the smallest minimum value of th...
12/07/2004
6798988Rangefinder apparatus and camera equipped therewith
A rangefinder apparatus includes an autofocus (AF) data generator; an AF data acquiring unit; an interpolated correlation extreme value computer for detecting at least one correlation extreme value from computed correlation values, and interpolating to compute the i...
09/28/2004
6768540Phase difference detection method, phase difference detection apparatus, range finding apparatus and imaging apparatus
A phase difference detection apparatus for detecting a phase difference between images formed on a pair of optical sensor arrays in which the possibility of unproductive compensation is reduced by use of a compensation effectiveness judgment unit that judges whether...
07/27/2004
6760547Rangefinder apparatus and camera equipped therewith
A rangefinder apparatus includes an autofocus data generator for forming an image of light from an object at a distance to be determined by rangefinding onto a pair of line sensors. Each line sensor includes light detecting elements, and generates AF data for comput...
07/06/2004
6714732Phase difference detection method, phase difference detection apparatus, range finding apparatus and imaging apparatus
A phase difference detection apparatus for detecting a phase difference between images formed on a pair of optical sensor arrays in which the calculation of a compensation value is simplified. When a compensation effectiveness judgment unit judges that compensation ...
03/30/2004
6700615Autofocus apparatus
An autofocus apparatus sets a portion of an image frame as an AF area. Then, in first image-pickup, acquires first image data for the AF area within the image frame according to a first light flux from an object passing through an aperture of the diaphrag...
03/02/2004
6701074Distance measuring apparatus
A correlation value calculation is performed by using AF data arranged at predetermined intervals in the AF data in a pair of window ranges, so that a frequency of calculation can be reduced. On the other hand, a correlation value calculation is performed...
03/02/2004
6697146Range finder for finding range by image realization
A range-finder, capable of finding a range by image realization, having two distantly arranged imaging devices. The first pattern having a predetermined size and the first positional information is extracted by the pattern extracting section from the firs...
02/24/2004
6516247Robot, identifying environment determining method, and program thereof
A robot is provided, wherein it is possible to reduce incorrect identification in the case of executing face identification in a place where lighting variations are large such as in a house and in a place where there exists a lighting environment that is ...
02/04/2003
6370262Information processing apparatus and remote apparatus for object, using distance measuring apparatus
An information processing apparatus using a distance measuring apparatus includes a distance measuring device for producing distance information related to a distance for each of different areas in a scene, a photometry device for measuring brightness inf...
04/09/2002
6332061Focus detecting device and automatic focusing camera
A focus detecting device for performing focus detection of passive type using phase-difference detection includes a sensor composed of a plurality of pixels which are paired, and a judgment circuit for judging whether a target image for focus detection is...
12/18/2001
6330055Distance measuring apparatus
A distance measuring apparatus for measuring the distance to an object has a line of charge coupled device (CCD) elements which serve as two sensors for passive sensing and one sensor, in combination with a light emitting element, for active sensing. An i...
12/11/2001
6301440System and method for automatically setting image acquisition controls
A system and method use computer image processing for setting the parameters for an image acquisition device of a camera. The image parameters are set automatically by analyzing the image to be taken, and setting the controls according to the subject matt...
10/09/2001
6108495Camera
In addition to a focus detecting sensor for phase difference detection, a camera is provided with a light source or a generator for emitting light or ultrasonic waves, and a light receiver or a receiver for receiving the light or the ultrasonic waves refl...
08/22/2000
6108435Method of detecting phase difference between a pair of images
A method of detecting a phase difference between a pair of images of an object which are formed on a pair of optical sensor arrays through different optical paths, with presence of flare in one of the images, is disclosed. The method includes the steps of...
08/22/2000
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