Image capturing apparatus and control method therefor

a technology of image capturing and control method, which is applied in the direction of cameras, printers, instruments, etc., can solve the problems of affecting usability, and affecting the usability of the imag

Active Publication Date: 2015-07-28
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Enhances usability by clearly indicating the focus status of the main subject amidst multiple subjects within the depth of field, preventing screen clutter and simplifying the identification of the intended focus area.

Problems solved by technology

Although the conventional technology does indeed make it easier to identify subjects within the depth of field, if more indication is provided to indicate subjects within the depth of field, the screen may become cluttered.
In such a case, identification of the main subject would be difficult and usability would suffer if indication were provided that all the subjects are within the depth of field.

Method used

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  • Image capturing apparatus and control method therefor
  • Image capturing apparatus and control method therefor
  • Image capturing apparatus and control method therefor

Examples

Experimental program
Comparison scheme
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embodiment 1

Configuration of Digital Camera 100

[0025]FIG. 1 is a block diagram illustrating an exemplary configuration of a digital camera 100, which is an example of an image capturing apparatus used in a first embodiment of the present invention. However, the image capturing apparatus used in the present embodiment is not limited to a digital camera and may be an apparatus that operates as a digital camera. Examples of apparatuses operating as digital cameras include, for instance, digital video cameras, mobile phones equipped with digital cameras, personal computers equipped with digital cameras, etc.

[0026]Here, 10 is a lens unit, 12 a shutter provided with a variable aperture feature, 14 an image capture element converting optical images into electrical signals, and 16 an A / D converter digitizing analog image signals obtained from the image capture element 14 and converting them into image data. It should be noted that a CCD image sensor or a CMOS image sensor, etc., can be used as the imag...

embodiment 2

[0167]Next, explanations will be provided regarding an image capturing apparatus used in a second embodiment of the present invention.

[0168]It should be noted that the image capturing apparatus according to this embodiment differs from the image capturing apparatus described in the first embodiment only in terms of the in-focus indication process (FIG. 3, S323 and FIG. 7), and explanations unrelated to the in-focus indication process are therefore omitted. The present embodiment is characterized by the fact that the user can configure settings related to in-focus indication and in-focus indication can be provided in accordance with the settings (in-focus indication settings). As far as the in-focus indication settings are concerned, the user can arbitrarily configure settings by manipulating a user input member used for in-focus indication settings included in the user input unit 70 or a menu screen (not shown) displayed on the image display unit 28 by pushing menu buttons included ...

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Abstract

Subjects are detected in a captured image and a main subject is selected from the detected subjects. Focusing areas are set up that correspond to the detected subjects and focus detection is performed in the focusing areas that have been set up. When providing in-focus indication representing focus detection results, focus detection results associated with the particular focusing area among the focusing areas that corresponds to the main subject are displayed in a manner different from focus detection results associated with those focusing areas within the depth of field that correspond to subjects other than the main subject.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to an image capturing apparatus, as well as to a control method therefor, and, in particular, relates to a technology for displaying the results of subject focus detection.[0003]2. Description of the Related Art[0004]Conventionally, image capturing apparatuses, particularly image capturing apparatuses possessing an automatic focusing (auto-focus) feature, provide indication (in-focus indication) used for indicating in-focus subjects to the user.[0005]Japanese Patent Laid-Open No. H04-9932 disclosed a technology for detecting whether subjects in multiple range-finding frames are respectively within the depth of field and for providing indication in locations corresponding to the range-finding frames of the subjects present within the depth of field.[0006]Moreover, Japanese Patent Laid-Open No. H05-232371 disclosed an image capturing apparatus displaying range-finding frames considered to be ...

Claims

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Application Information

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Patent Type & AuthorityPatents(United States)
IPC IPC(8): G03B3/10G03B13/34
CPCG03B13/32H04N23/675H04N23/61H04N23/611H04N23/635G03B3/10
InventorYOSHIDA, NOBUKAZUKUBOTA, AKIRA
OwnerCANON KK