Image capture apparatus and control method thereof
AssigneeCanon Kabushiki Kaisha
InventorYasuhiro Matsuo
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AssigneeCanon Kabushiki Kaisha
InventorYasuhiro Matsuo
Estimating the term…
An image capture apparatus that detects a position of a gazed point in an image based on a line of sight of a user is disclosed. The image capture apparatus also detects at least one characteristic area from the image and sets a determination area to each characteristic area having a size that is greater than or equal to a predetermined lower limit value. Then the image capture apparatus selects the characteristic area corresponding to a determination area including the position of the gazed point.
An electronic device comprising:
An electronic device comprising:
An electronic device comprising:
A control method of an electronic device comprising:
A non-transitory computer-readable medium storing a program for causing at least one processor included in an electronic device to function as:
Dependencies are inferred from the claim text.
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Based on recognised objects: where the recognised objects include parts of the human body
Arrangements for interaction with the human body, e.g. for user immersion in virtual reality: eye tracking input arrangements
Determining position or orientation of objects or cameras: using feature-based methods
Cameras or camera modules comprising electronic image sensors; Control thereof: control of cameras or camera modules
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The present invention relates to an image capture apparatus and a control method thereof, and specifically relates to a technique for assisting the selection of a subject to be focused on.
An image capture apparatus that allows a user to select one of a plurality of candidate areas having the same size and fixed positions using his/her a line of sight (Japanese Patent Laid-Open No. 2005-249831). In such an image capture apparatus, a candidate area corresponding to a determination area that includes coordinates of a gazed point in an image, which can be obtained based on a direction of a line-of-sight of the user, from among a plurality of determination areas that are respectively set in advance for candidate areas, can be regarded as the focus detection area selected by a user.
For example, if trying to realize a configuration in which one of a plurality of image areas that differ in size and position can be selected using a line of sight, it would be required dynamically setting the determination areas. However, there has been no such technique.
FIG. 1 is a block diagram illustrating an exemplary functional configuration of an image capture apparatus according to an embodiment.
FIGS. 2A and 2B are diagrams illustrating an example of a correspondence relationship between an exit pupil and a photoelectric conversion region, of the image capture apparatus according to the embodiment.
FIGS. 3A and 3B are schematic diagrams illustrating an exemplary configuration of a line of sight detection unit according to the embodiment.
Hereinafter, embodiments will be described in detail with reference to the attached drawings. Note, the following embodiments are not intended to limit the scope of the claimed invention. Multiple features are described in the embodiments, but limitation is not made an invention that requires all such features, and multiple such features may be combined as appropriate.
Furthermore, in the attached drawings, the same reference numerals are given to the same or similar configurations, and redundant description thereof is omitted.
Note that, in the following embodiments, a case where the present invention is implemented in an interchangeable lens type digital camera will be described. However, the present invention can be applied to any electronic device in which a line of sight detection function and an image capture function can be installed. Such electronic devices include a video camera, a computer device (such as a personal computer, a tablet computer, a media player, or a PDA), a mobile phone, a smart phone, a game machine, a robot, a drone, a drive recorder, and the like. However, these are merely examples, and the present invention can also be applied to other electronic devices. Also, the present invention can also be applied to a configuration in which the line of sight detection function and the image capture function are respectively installed on separate devices (e.g., a main body and a remote controller) that can communicate to each other.