Patent application number | Description | Published |
20090074392 | IMAGING APPARATUS AND FOCUSING CONTROL METHOD - An imaging apparatus sets a main area and a plurality of subareas around the main area in an image obtained from an image sensor, and acquires each focusing state and each in-focus point based on the each focusing state of the main area and the plurality of subareas in an image obtained from the image sensor at each of a plurality of focus lens positions while moving a focus lens. If the focusing state of the main area does not satisfy a predetermined condition, the imaging apparatus performs focusing control using the focusing state of the main area and a focusing state of a subarea having an in-focus point located within a predetermined range from the in-focus point of the main area among the plurality of subareas. | 03-19-2009 |
20100067891 | AUTOMATIC FOCUSING APPARATUS AND CONTROL METHOD THEREFOR - An automatic focusing apparatus detects presence or absence of change in a distance between an object and the automatic focusing apparatus while operating in an operation mode to continuously perform an adjustment of the position of a focus lens to focus on the object, and stops a movement of the focus lens if a change in the distance is not detected. | 03-18-2010 |
20100208126 | FOCUS ADJUSTMENT APPARATUS AND FOCUS ADJUSTMENT METHOD - Before receiving an instruction, an apparatus identifies an object region to be focused by detecting a focus signal while moving a focusing lens. When the instruction is received, the apparatus moves the focusing lens based on the focus signal of the identified object region to be focused to detect a focus signal and perform a focus adjustment for the focusing lens. | 08-19-2010 |
20110044675 | FOCUS ADJUSTMENT APPARATUS AND FOCUS ADJUSTMENT METHOD - A focus adjustment apparatus includes an imaging unit configured to capture an object image input via a focus lens to output image data, a focus adjustment unit configured to perform focus adjustment by controlling a position of the focus lens based on the image data, a motion detection unit configured to detect a motion of the object image based on the image data, and a control unit configured to control the focus adjustment unit to perform a first focus adjustment operation if motion of the object image is not detected by the motion detection unit, and to control the focus adjustment unit to perform a second focus adjustment operation different from the first focus adjustment operation if motion of the object image is detected by the motion detection unit. | 02-24-2011 |
20110081141 | FOCUS ADJUSTING DEVICE, IMAGE PICKUP APPARATUS, AND FOCUS ADJUSTMENT METHOD - A focus adjusting device in which, when a detecting unit that detects an object image to be focused from a picked up image is capable of detecting the object image to be focused, a setting unit that sets a focus detection area when a focused state of an image pickup optical system is detected sets a second focus detection area after setting a first focus detection area and in accordance with the position of the first focus detection area, corresponding to the object image that is detected by the detecting unit and that is to be focused. Then, on the basis of signal outputs at the set focus detection area, the image pickup optical system is driven to perform focus adjustment. | 04-07-2011 |
20120033127 | IMAGE CAPTURE APPARATUS - An image capture apparatus comprises an image sensor, a detection unit which detects an object area based on at least one of color information and luminance information of an image obtained from the image sensor, a setting unit which sets a plurality of focus detection areas, with reference to the object area detected by the detection unit, a selection unit which selects a focus detection area from the plurality of focus detection areas, and a focus adjusting unit which performs focus adjustment by moving the imaging optical system based on the output signal from the image sensor in the focus detection area, wherein an overall range of the plurality of focus detection areas is wider than the object area, and each of the plurality of focus detection areas is smaller than a minimum size which can be set for the object area. | 02-09-2012 |
20130120645 | IMAGE PICKUP APPARATUS, METHOD FOR CONTROLLING THE SAME, AND STORAGE MEDIUM - An image pickup apparatus includes an imaging unit configured to sequentially acquire an imaging signal while a focus lens is moving, a generation unit configured to generate a focus signal by using the imaging signal, and a control unit configured to control movement of the focus lens. The control unit performs a first operation for driving the focus lens in one direction in a range including a first area and a second area which is farther from a peak position of the focus signal than the first area. In the first operation, the control unit sets a focusing speed to a first speed when the focus lens is in the first area. When a predetermined condition is satisfied in the first operation, the control unit sets a focusing speed to a second speed faster than the first speed when the focus lens is in the second area. | 05-16-2013 |
20140168467 | FOCUS ADJUSTMENT APPARATUS AND METHOD, AND IMAGE CAPTURING APPARATUS - A focus adjustment apparatus comprises: a focus adjustment unit configured to execute focus adjustment processing by driving a focus lens based on focus evaluation values calculated respectively for periodically sensed images while scanning the focus lens within a predetermined scan range; a first processing unit configured to execute processing, an operation of which is affected by driving of the focus lens; a second processing unit configured to execute processing, an operation of which is not affected by driving of the focus lens; a determination unit configured to determine a start position of the scan range; and a control unit configured to control the first processing unit to execute the processing before the focus lens is scanned to the start position, and controls the second processing unit to execute the processing during the scan of the focus lens to the start position. | 06-19-2014 |
20140248044 | AUTOMATIC FOCUSING APPARATUS AND CONTROL METHOD THEREFOR - An automatic focusing apparatus detects presence or absence of change in a distance between an object and the automatic focusing apparatus while operating in an operation mode to continuously perform an adjustment of the position of a focus lens to focus on the object, and stops a movement of the focus lens if a change in the distance is not detected. | 09-04-2014 |
20150085172 | IMAGE CAPTURING APPARATUS AND CONTROL METHOD THEREOF - An image capturing apparatus comprising: an image sensor; a setting unit configured to set, in the image sensor, a first region for obtaining a focus detection signal, and a second region, larger than the first region and contains the first region, for obtaining an image signal; a focus control unit configured to carry out focus control by finding an in-focus position of a focus lens using the focus detection signal output from the first region; and a readout unit configured to read out the focus detection signal from the first region and the image signal from the second region in parallel. The readout unit sets a framerate for reading out the focus detection signal to be higher than a framerate for reading out the image signal. | 03-26-2015 |