WO2005026803A1 - 撮影レンズ位置制御装置 - Google Patents
撮影レンズ位置制御装置 Download PDFInfo
- Publication number
- WO2005026803A1 WO2005026803A1 PCT/JP2004/012823 JP2004012823W WO2005026803A1 WO 2005026803 A1 WO2005026803 A1 WO 2005026803A1 JP 2004012823 W JP2004012823 W JP 2004012823W WO 2005026803 A1 WO2005026803 A1 WO 2005026803A1
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- WO
- WIPO (PCT)
- Prior art keywords
- lens position
- focus lens
- focus
- contrast
- photographing
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
- H04N23/673—Focus control based on electronic image sensor signals based on contrast or high frequency components of image signals, e.g. hill climbing method
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
- G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals
Definitions
- the present invention relates to control of a focus lens position of a camera.
- Patent Document 1 Japanese Patent No. 2523011
- the image with the highest contrast data value is not always the in-focus image.
- a camera has a property called depth of field.
- the “depth of field” refers to a range in which objects before and after being focused seem to be practically in focus.
- FIG. 1 is a diagram for explaining this depth of field.
- the focus lens position is X
- the depth of field is the shaded portion, and the person A is in focus.
- the focus lens position is moved to y (however, the “aperture” of the lens that changes the depth of field is not changed; that is, the width of the hatched portion in the figure does not change), and the focus is within the depth of field.
- y the “aperture” of the lens that changes the depth of field is not changed; that is, the width of the hatched portion in the figure does not change
- the focus is within the depth of field.
- Person A and Person B This place
- the photographs taken in each case are as shown in Fig. 2.
- the lens position y is determined as the focus lens position because the photograph of the lens position y (2) has more edge components for judging the magnitude of the contrast value than the photograph of the lens position y (1). Will be.
- the conventional technology has a problem that an unrelated subject is focused together with a subject to be focused.
- the following case can be considered even when there is no Mr. B, that is, when the subject within the depth of field is only Mr. A who wants to be included in the photograph. For example, if there is a subject behind Ms. A that has many edge components such as cages, columns, and forests that consist of many bars even outside the depth of field, the contrast data will be behind that with many edge components. There is a possibility that it will be focused there because it grows in a cage.
- Mr. A there is a problem that the subject to be focused on, Mr. A, may not be focused and may be focused on the subject, such as a cage.
- the present invention provides a video signal acquisition unit that acquires a video signal in association with a focus lens position, a contrast information acquisition unit that acquires contrast information in association with the focus lens position, Provided is a first photographing focus lens position determining unit that determines a focus lens position suitable for photographing, and a photographing lens position control device having the same. Then, the first photographing focus lens position determining unit of the photographing lens position control device determines the focus position among the focus lens position information associated with the contrast information in which the contrast value indicated by the contrast information is equal to or greater than a predetermined threshold. The camera determines the focus lens position based on the focus position information at the front.
- the peak focus lens position in which the focus position is the foremost among the peak focus lens positions is also provided.
- the camera of the present invention includes not only a camera that shoots a still image but also a general shooting device that focuses using a lens, such as a video camera that shoots a moving image.
- claims 1, 2, 4, and 5 will be mainly described.
- claims 3, 4, and 5 will be mainly described.
- FIG. 2 shows a photograph (1) focused and photographed by the photographing lens position control device of the present example and a conventional autofocus. It is a figure showing the photograph (2) focused by the mechanism.
- the photographing lens position control device of the present embodiment makes it difficult for a photographer to focus on the irrelevant rear object when the photographer wants to photograph the object in front. It becomes possible to take a photograph in which the desired subject is firmly focused.
- FIG. 3 is a diagram illustrating functional blocks of the photographing lens position control device of the present embodiment.
- the photographing lens position control device (0300) of the present embodiment includes a “video signal acquiring unit” (0301), a “contrast information acquiring unit” (0302), and a “first photographing focus lens”.
- the "video signal acquisition unit” (0301) acquires the video signal in association with the focus lens position. Has the function of obtaining.
- the “video signal” is a signal that indicates the color or luminance generated by a camera device such as a CCD or a color filter that converts the intensity of light captured by the lens into an electric signal.
- Y a YUV signal that represents a color with three pieces of information: the difference between the luminance signal and the red component (U), the difference between the luminance signal and the blue component (V), and the color red (R) 'green ( G) ⁇ RGB signals expressed as a combination of the three primary colors blue (B).
- the image signal is obtained by the video signal obtaining unit using, for example, a device such as a CCD as described above, and the photodiode converts the light intensity at each pixel of the subject into a video signal such as a luminance signal (Y). It is performed by converting to and obtaining.
- the "focus lens” refers to a lens that moves its position to focus on a subject in a camera.
- the “focus lens position” refers to the position of the focus lens in the photographing mechanism of the photographing device.
- the "contrast information acquisition unit” (0302) has a function of acquiring contrast information from the video signal acquired by the video signal acquisition unit (0301) in association with the focus lens position.
- “Contrast information” refers to information indicating the contrast of an image. For example, information indicating a difference value between the value of a luminance signal of a certain pixel and the value of a luminance signal of a pixel adjacent thereto and the like. And information indicating high-frequency components extracted by passing a Fourier-transformed image signal such as a luminance signal through a high-pass filter (one of band-pass filters, which passes only high-frequency components).
- the "first photographing focus lens position determining unit" (0303) is a part of the focus lens position information associated with contrast information in which the contrast value indicated by the contrast information is equal to or greater than a predetermined threshold. It has a function to determine the shooting focus lens position based on the focus position information at which the focus position is closest.
- the “predetermined threshold value” is preferably such that there are at least two focus lens positions associated with a contrast value greater than or equal to the threshold value. Also, this threshold is, for example, As shown in FIG. 15, the difference (Df) between the maximum value B and the minimum value A of the difference integration value (an example of contrast information) described later is calculated, and is calculated by “minimum value A + DfX (predetermined ratio)”. Is the threshold value.
- the predetermined ratio is set to, for example, “0.7” for an image having a strong edge, that is, an image having a high mountain height of the above function, because the threshold is lowered on the assumption that the depth of field is deep.
- the image is a merino or no-noppel image, that is, if the peak of the above function is low, it is considered that the depth of field is shallow, and ⁇ 0.9 '' should be set to raise the threshold. .
- “Focus position is near” means that the object to be focused on the image forming unit by the focus lens is on the lens side.
- the determination of the threshold value does not necessarily need to depend on the depth of field, and the effect is not limited to only the effect exerted on the subject inside the depth of field.
- FIG. 4 shows an example of a device configuration when the photographing lens position control device according to the present embodiment is mounted on a camera.
- the “video signal acquisition unit” of the configuration requirement described above is realized by “CCD” (0402) in FIG.
- the “contrast information acquisition unit” is realized by the “difference acquisition circuit” (0403), the “threshold filter” (0404), and the “difference value integration circuit” (0405) in FIG.
- the “first photographing focus lens position determining unit” is realized by the “lens position determining circuit” (0406) in FIG.
- the luminance signal is transmitted to the “difference obtaining circuit” (0403) in association with the focus lens position information.
- FIG. 5 is a diagram for explaining processing performed by the difference acquisition circuit (0403) in FIG.
- the difference acquisition circuit calculates a difference value between the value of the luminance signal of the pixel 1 and the value of the luminance signal of the pixel 29 adjacent to the pixel 1.
- the luminance signal is represented by an 8-bit numerical value. For example, it is assumed that the luminance signal of the pixel 1 at the focus lens position m is “16” (the luminance is low and close to black). Also, it is assumed that the value of the luminance signal of the surrounding pixels 2-9 is “235”. From these numerical values, the luminance difference value of pixel 1 at lens position X is calculated. Similarly, a luminance difference value is calculated for pixels 2, 3,....
- pixel 1 is relatively blurred black
- the value of the luminance signal is “40”
- the value of the luminance signal of surrounding pixels 2-9 remains unchanged. Let it be "235”. Then, the absolute value of the luminance difference value becomes smaller than that at the lens position m. As described above, the luminance difference value changes depending on the focusing method.
- FIG. 6 is a diagram for explaining the processing of the threshold filter (0404). As shown in this figure, luminance difference values of pixels 1, 2, 6, 7,... Having a luminance difference value equal to or greater than a predetermined value indicated by a broken line are extracted.
- FIG. 7 is a graph showing the difference integrated value calculated by the difference value integrating circuit (0405) as a function of the focus lens position. Note that the focus lens position on the horizontal axis is the focus lens position where the intersection side is focused on the near side, and the focus lens position where the farther object is focused on the left.
- the difference integration value for each focus lens position obtained in this way is an example of contrast information, and is used for determining the photographing focus lens position.
- acquisition of this contrast information is performed by calculating a difference value of a luminance signal value between pixels for each pixel as described above, and integrating the difference value for each lens position.
- a luminance signal of a pixel may be Fourier-transformed and processed as a frequency component as described below.
- FIG. 8 shows an example of the device configuration when the photographing lens position control device of the present embodiment is mounted on a camera, similarly to FIG.
- the difference from the camera device of FIG. 4 lies in the processing method for acquiring the contrast information. Therefore, the “video signal acquisition unit” of the configuration requirement is realized by the “CCD” (0802) in FIG. 8 as in FIG.
- the “Contrast Information Acquisition Unit” of the configuration requirement is different from that in FIG. 4, and in FIG. 8, the “frequency extraction circuit” (0803), the “Fourier transform circuit” (0804), the “bandpass filter” (0805), and the “ Range integration value calculation circuit ”(0806).
- the “first photographing focus lens position determining unit” is also realized by the “lens position determining circuit” (0807) in FIG. 8 as in FIG.
- FIG. 9 is a diagram for explaining an example of a method of performing Fourier transform and processing the luminance signal of the pixel as a frequency component.
- a luminance signal is acquired by the optical power CCD (0802) of an image passing through the focus lens (0801).
- the “frequency extraction circuit” (0803) extracts a luminance signal as a frequency component from the image acquired by the CCD (shown by (1) in FIG. 9; the same applies hereinafter).
- the frequency component of the luminance signal is Fourier-transformed by a “Fourier transform circuit” (0804).
- the Fourier-transformed luminance signal is passed through a “band-pass filter” (0805) (3), and the high-frequency component of the frequency component, that is, a portion that becomes a contrast is extracted (4). Then, in the “range integral value calculation circuit” (0806), the integral value of the extracted range (vertical line portion) as an example of the contrast information is obtained (5), and the integral value is plotted in association with the lens position (6). ).
- the contrast information associated with the lens position generated by the processing described in the acquisition examples 1 and 2 of the contrast information is used.
- the “lens position determining circuit” (0406 or 0807) in FIG. 4 or FIG. 8 determines the focus lens position suitable for photographing.
- An example of the processing method for the determination is as follows.
- the graph of the function shown in FIG. 7 or FIG. 9 (6) is a peak having the peak at the focus lens position y.
- the integral Y which is the position to take the mark, is determined as the focus lens position.
- the focus lens position X where the focus position is the foremost position among the focus lens positions associated with the integral value equal to or greater than a predetermined threshold value (broken line in the figure) is determined as the photographing focus lens position. I do.
- GB signal strength There is a method of calculating the value of the luminance signal and obtaining contrast information.
- FIG. 10 is a flowchart illustrating an example of a processing flow in the photographing lens position control device of the present embodiment.
- the focus lens is fixed at a predetermined position (for example, a position of the lens movable range closest to the subject). Then, first, the focus lens is moved to the focus lens position 1 (step S1001).
- the video signal Y in 1 is acquired in association with 1 (step S1002).
- contrast information C is obtained from the video signal Y obtained in step S1002 in association with the focus lens position 1 (step S1003).
- the photographing focus lens position is determined based on the focus lens position 1 associated with the contrast information C (step). Step S 1006), and the processing ends.
- step S 1005 it is determined whether or not the focus lens position 1 is within a preset focus lens movable limit position ⁇ (step S 1005).
- the process returns to step S1001, and changes the focus lens position 1 (for example, the relative distance to the object increases stepwise). (Move the focus lens position so that it becomes as close as possible.) Perform this process again.
- the focus lens position 1 has reached the movable limit position, it is determined that a focus lens that is in good focus (focused on the subject) has not been detected.
- processing is performed such as setting the lens to the focus lens position.
- the determination as to whether or not the value of the contrast indicated by the contrast information is equal to or greater than the threshold is performed each time the contrast information is acquired. Since this contrast information is obtained by moving the lens stepwise from the position where the lens is focused forward, in such processing, the contrast information that takes a value equal to or higher than the threshold value earlier than the contrast information that forms the peak is obtained. Can be obtained. Therefore, the photographing focus lens position can be determined earlier than before, and the processing speed for determining the photographing focus lens position is improved.
- the determination as to whether or not the contrast value is equal to or greater than the threshold value may be made after obtaining the contrast information at all the positions of the focus lens. In this case, after the contrast information is obtained at all the focus lens positions, a process of detecting the foreground focus position from among the focus lens position information determined to be equal to or greater than the threshold value is performed, and the shooting focus is determined. The lens position is determined.
- the focus position where the contrast value is equal to or larger than the threshold value is more likely to be located before the focus position where the peak is obtained. Therefore, it is possible to perform the process of determining the focus lens position earlier than calculating the integrated value for each focus lens position until the peak is found.
- FIG. 11 is a diagram for explaining the concept of the photographing lens position control device of the present embodiment.
- behind it is a column group with many edges.
- the conventional post-focusing technique may focus on the rear pillar group.
- the photographing lens position control device of the present embodiment even when there is a subject having a strong edge component such as a pillar group behind, it is possible to automatically focus on the cat in front.
- the difference from the first embodiment is that, when the photographing lens position control device of the first embodiment includes an object other than the desired object within the depth of field, the focus is more focused on the desired object. While the lens position can be determined, the photographing lens position control device of the second embodiment has the effect of eliminating the possibility of focusing on an object that is outside the depth of field.
- FIG. 12 is a diagram showing functional blocks of the photographing lens position control device of the present embodiment.
- the photographing lens position control device (1200) of this embodiment includes a “video signal acquisition unit” (1201), a “contrast information acquisition unit” (1202), and a “peak focus lens position information”. Acquisition unit ”(1203) and“ Second imaging focus lens position determination unit ”(1204).
- the “video signal acquisition unit” and the “contrast information acquisition unit” are the same as those described in the first embodiment, and thus description thereof will be omitted.
- the “peak focus lens position information acquisition section” has a function of acquiring peak focus lens position information.
- Peak focus lens position information is information indicating the focus lens position at which the contrast indicates a peak based on the contrast information.
- FIG. 13 is a diagram illustrating an integrated value plotted for each lens position obtained by the processing described in the first embodiment. As shown in this figure, several peaks are formed by the integrated value of the contrast data at each lens position.
- the cat is in focus at the focus lens position at the front peak, and the focus is on the pillar group at the focus lens position at the peak after it.
- the height of the peak is higher because the pillar group has more edge components than the cat, and the conventional method of selecting the maximum point of the peak focuses on the pillar group as described above. The likelihood is high. Therefore, the following "" second photographing focus lens position determining unit "performs the following processing so that the cat in front is focused.
- the “second photographing focus lens position determination unit” (1204) when there are a plurality of the peak focus lens positions, sets a peak indicating the peak focus lens position at which the focus position is closest to the peak focus lens positions.
- the focus lens position is determined based on the focus lens position information.
- FIG. 14 is a flowchart illustrating an example of a processing flow in the photographing lens position control device of the present embodiment.
- a focus lens is fixed at a predetermined position.
- step S1401 Is moved to the focus lens position 1 (step S1401).
- step S1402 the video signal Y in 1 is acquired in association with 1 (step S1402).
- contrast information C is obtained from the video signal Y obtained in step S1402 in association with the focus lens position 1 (step S1403).
- step S1404 it is determined whether or not the focus lens position 1 is within a preset focus lens movable limit position (step S1404). If it is determined that the focus lens position 1 is within the movable limit position, the process returns to step S1401, and the focus lens position 1 is changed and the present process is performed again.
- step S1405 If it is determined that the focus lens position 1 has reached the movable limit position H, peak focus lens position information P1 is obtained from the contrast information C obtained at each focus lens position (step S1405). ). Finally, when there are a plurality of peak focus lens positions P1, shooting is performed based on P1 having the focus position closest to the front of the P1. The focus lens position is determined.
- the photographing lens position control device of this embodiment may have the following configuration.
- the above-described photographing lens position control device includes a “third photographing focus lens position determining unit” instead of the “second photographing focus lens position determining unit”.
- the focus associated with the contrast information in which the contrast value indicated by the contrast information is equal to or more than a predetermined threshold value It has a function of determining the shooting focus lens position based on the focus position information in which the focus position is closest to the front of the lens position information.
- the threshold value may be determined based on the peak focus lens position information before this.
- FIG. 1 is a diagram for explaining the depth of field in Embodiment 1.
- FIG. 2 is a diagram showing a photograph focused by the photographing lens position control device of Embodiment 1 and a photograph focused by conventional autofocus.
- FIG. 3 is a diagram illustrating functional blocks of a photographing lens position control device according to a first embodiment.
- FIG. 4 is a diagram showing an example of a configuration when the photographing lens position control device of the first embodiment is mounted on a camera
- FIG. 5 is a diagram for explaining processing performed by a difference acquisition circuit according to the first embodiment.
- Garden 6 Diagram for explaining the processing of the threshold filter of the first embodiment
- FIG. 7 is a graph showing the difference integrated value calculated by the difference value integration circuit of Example 1 as a function of the focus lens position.
- FIG. 10 is a flowchart illustrating an example of a processing flow in the photographing lens position control device according to the first embodiment.
- FIG. 14 is a flowchart illustrating an example of a processing flow in the photographing lens position control device according to the second embodiment.
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Abstract
Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04772772A EP1669786A4 (en) | 2003-09-10 | 2004-09-03 | IMAGING OBJECTIVE POSITION ADJUSTING DEVICE |
JP2005513853A JPWO2005026803A1 (ja) | 2003-09-10 | 2004-09-03 | 撮影レンズ位置制御装置 |
US10/571,586 US20070196092A1 (en) | 2003-09-10 | 2004-09-03 | Imaging lens position control device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003318899 | 2003-09-10 | ||
JP2003-318899 | 2003-09-10 |
Publications (1)
Publication Number | Publication Date |
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WO2005026803A1 true WO2005026803A1 (ja) | 2005-03-24 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2004/012823 WO2005026803A1 (ja) | 2003-09-10 | 2004-09-03 | 撮影レンズ位置制御装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20070196092A1 (ja) |
EP (1) | EP1669786A4 (ja) |
JP (1) | JPWO2005026803A1 (ja) |
KR (1) | KR100851695B1 (ja) |
CN (1) | CN1849540A (ja) |
WO (1) | WO2005026803A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100426035C (zh) * | 2005-04-15 | 2008-10-15 | 索尼株式会社 | 自动聚焦装置和方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100601475B1 (ko) * | 2004-12-09 | 2006-07-18 | 삼성전기주식회사 | 이미지 복잡도에 따라 가변적 양자화 크기를 갖는 이미지압축 장치 및 그 방법 |
JP5043595B2 (ja) * | 2007-10-23 | 2012-10-10 | 富士フイルム株式会社 | 撮影装置および内視鏡システム |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08160287A (ja) * | 1994-12-09 | 1996-06-21 | Canon Inc | 自動合焦装置 |
JPH0969974A (ja) * | 1995-08-31 | 1997-03-11 | Canon Inc | 撮像装置 |
JP2000354194A (ja) * | 1999-06-11 | 2000-12-19 | Ricoh Co Ltd | 自動焦点制御装置および自動焦点制御方法 |
JP2001116978A (ja) * | 1999-10-15 | 2001-04-27 | Canon Inc | 撮像装置、撮像方法、及び記憶媒体 |
JP2001281533A (ja) * | 2000-03-30 | 2001-10-10 | Minolta Co Ltd | デジタルカメラ |
JP2001350081A (ja) * | 2000-06-07 | 2001-12-21 | Olympus Optical Co Ltd | 自動焦点調節装置 |
JP2003114378A (ja) * | 2001-10-05 | 2003-04-18 | Nikon Gijutsu Kobo:Kk | カメラ |
JP2003185912A (ja) * | 2001-12-20 | 2003-07-03 | Canon Inc | 焦点調節装置、撮像装置、合焦方法、プログラム、及び記憶媒体 |
JP2003234940A (ja) * | 2002-02-12 | 2003-08-22 | Olympus Optical Co Ltd | カメラ |
JP2003241067A (ja) * | 2002-02-18 | 2003-08-27 | Minolta Co Ltd | 撮像装置 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5930891Y2 (ja) * | 1979-02-16 | 1984-09-03 | 旭光学工業株式会社 | 電気的自動焦点合致カメラ |
US4766302A (en) * | 1984-05-17 | 1988-08-23 | Minolta Camera Kabushiki Kaisha | Focus detecting device including means for determining a priority of correlation calculations |
US5121151A (en) * | 1988-04-28 | 1992-06-09 | Canon Kabushiki Kaisha | Focus adjustment information forming device |
CA1317493C (en) * | 1988-05-11 | 1993-05-11 | Kenichi Kikuchi | Image sensing apparatus having automatic focusing function for automatically matching focus in response to video signal |
US5151583A (en) * | 1988-05-16 | 1992-09-29 | Canon Kabushiki Kaisha | Focus adjustment device having restricting means for restricting a selecting action according to the degree of nearness of a distance measurement |
JPH0313073A (ja) * | 1989-06-09 | 1991-01-22 | Canon Inc | 自動焦点調節装置 |
JPH04151132A (ja) * | 1990-10-15 | 1992-05-25 | Nikon Corp | 多点測距装置 |
US5694168A (en) * | 1991-09-04 | 1997-12-02 | Fuji Photo Film Co., Ltd. | Auto focus control device and method including selecting a zone for detecting an evaluative value for focusing in accordance with photographing direction |
DE69331874T2 (de) * | 1992-12-28 | 2002-11-14 | Canon Kk | One-chip integrated circuit for use in a controlling focusing means |
US6654061B2 (en) * | 1995-06-14 | 2003-11-25 | Canon Kabushiki Kaisha | Automatic focus adjusting apparatus and method utilized by an image sensing apparatus |
US5913082A (en) * | 1995-10-27 | 1999-06-15 | Canon Kabushiki Kaisha | Image signal processing apparatus |
JP2000330002A (ja) * | 1999-05-20 | 2000-11-30 | Olympus Optical Co Ltd | 測距装置 |
US6972798B1 (en) * | 1999-08-31 | 2005-12-06 | Canon Kabushiki Kaisha | Focusing device and method |
JP3302003B2 (ja) * | 2000-03-08 | 2002-07-15 | 三洋電機株式会社 | オートフォーカス機能を有する撮像装置 |
JP2001281529A (ja) * | 2000-03-29 | 2001-10-10 | Minolta Co Ltd | デジタルカメラ |
JP2006208818A (ja) * | 2005-01-28 | 2006-08-10 | Sony Corp | フォーカス制御装置、フォーカス制御方法 |
JP4747003B2 (ja) * | 2005-06-22 | 2011-08-10 | 富士フイルム株式会社 | 自動合焦制御装置およびその制御方法 |
JP4957943B2 (ja) * | 2005-09-07 | 2012-06-20 | カシオ計算機株式会社 | 撮像装置及びそのプログラム |
JP4641494B2 (ja) * | 2005-11-28 | 2011-03-02 | キヤノン株式会社 | 光学機器 |
-
2004
- 2004-09-03 US US10/571,586 patent/US20070196092A1/en not_active Abandoned
- 2004-09-03 KR KR1020067003487A patent/KR100851695B1/ko not_active IP Right Cessation
- 2004-09-03 JP JP2005513853A patent/JPWO2005026803A1/ja active Pending
- 2004-09-03 WO PCT/JP2004/012823 patent/WO2005026803A1/ja active Application Filing
- 2004-09-03 EP EP04772772A patent/EP1669786A4/en not_active Withdrawn
- 2004-09-03 CN CNA2004800260200A patent/CN1849540A/zh active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08160287A (ja) * | 1994-12-09 | 1996-06-21 | Canon Inc | 自動合焦装置 |
JPH0969974A (ja) * | 1995-08-31 | 1997-03-11 | Canon Inc | 撮像装置 |
JP2000354194A (ja) * | 1999-06-11 | 2000-12-19 | Ricoh Co Ltd | 自動焦点制御装置および自動焦点制御方法 |
JP2001116978A (ja) * | 1999-10-15 | 2001-04-27 | Canon Inc | 撮像装置、撮像方法、及び記憶媒体 |
JP2001281533A (ja) * | 2000-03-30 | 2001-10-10 | Minolta Co Ltd | デジタルカメラ |
JP2001350081A (ja) * | 2000-06-07 | 2001-12-21 | Olympus Optical Co Ltd | 自動焦点調節装置 |
JP2003114378A (ja) * | 2001-10-05 | 2003-04-18 | Nikon Gijutsu Kobo:Kk | カメラ |
JP2003185912A (ja) * | 2001-12-20 | 2003-07-03 | Canon Inc | 焦点調節装置、撮像装置、合焦方法、プログラム、及び記憶媒体 |
JP2003234940A (ja) * | 2002-02-12 | 2003-08-22 | Olympus Optical Co Ltd | カメラ |
JP2003241067A (ja) * | 2002-02-18 | 2003-08-27 | Minolta Co Ltd | 撮像装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1669786A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100426035C (zh) * | 2005-04-15 | 2008-10-15 | 索尼株式会社 | 自动聚焦装置和方法 |
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KR20060058119A (ko) | 2006-05-29 |
KR100851695B1 (ko) | 2008-08-11 |
CN1849540A (zh) | 2006-10-18 |
US20070196092A1 (en) | 2007-08-23 |
JPWO2005026803A1 (ja) | 2007-11-08 |
EP1669786A1 (en) | 2006-06-14 |
EP1669786A4 (en) | 2009-12-23 |
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