Image sensing system and control method thereof
AssigneeCanon Kabushiki Kaisha
InventorsTsuneyoshi Takagi, Yoshihiro Ishida, Takashi Oya
Life of this patent
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Abstract
In an image sensing system where a camera apparatus and a client device are connected for controlling the camera apparatus by the client device, the client device displays and arbitrarily shifts a predetermined size of detection area in an object image sensed by the camera apparatus, enabling to quickly perform camera parameter control, such as focus adjustment or the like, based on image signals of the detection area, with a small amount of transferring data. Moreover, detection areas of a sensed image are synthesized by controlling camera parameters for each of the detection areas so as to optimize camera parameters for all of the areas in the object image.
Claims32
An image sensing system where a camera apparatus and a client device are connected for controlling the camera apparatus by the client device, comprising:
- image sensing means for sensing an object and obtaining an image signal thereof;
- detection area control means for controlling a detection area in the image signal;
- adjusting means for adjusting a camera parameter based on an image signal of the detection area;
- storage means for storing a shape and size of the detection area;
- display means for superimposing the detection area on an image obtained by said image sensing means after said adjusting means adjusts the camera parameter, based on the position, shape and size of the detection area;
- and
- shift instructing means for instructing said detection area control means to shift the detection area.
An image sensing system where a camera apparatus and a client device are connected for controlling the camera apparatus by the client device, comprising:
- image sensing means for sensing an object and obtaining an image signal of the object;
- detecting means for detecting an image signal of a detection area in the obtained image signal;
- adjusting means for adjusting a camera parameter based on the image signal of the detection area;
- storage means for storing the image signal of the detection area sensed by said image sensing means after said adjusting means adjusts the camera parameter;
- shifting means for shifting the detection area;
- and
- image synthesizing means for synthesizing image signals of a plurality of detection areas stored in said storage means.
A control method of an image sensing system where a camera apparatus and a client device are connected for controlling the camera apparatus by the client device, comprising:
- a first image sensing step of sensing an object by image sensing means and obtaining an image signal of the object;
- a detection area control step of controlling a detection area in the image signal;
- an adjusting step of adjusting a camera parameter based on an image signal of the detection area;
- a second image sensing step of sensing the object by the image sensing means after the camera parameter is adjusted in said adjusting step;
- a display step of superimposing the detection area on an image sensed in said second image sensing step, based on a position, shape and size of the detection area stored in storage means in advance;
- and
- a shift instructing step of instructing to shift the detection area.
A control method of an image sensing system where a camera apparatus and a client device are connected for controlling the camera apparatus by the client device, comprising:
- a first image sensing step of sensing an object by image sensing means and obtaining an image signal of the object;
- a detecting step of detecting an image signal of a detection area in the obtained image signal;
- an adjusting step of adjusting a camera parameter based on the image signal of the detection area;
- a second image sensing step of sensing the object by the image sensing means after the camera parameter is adjusted in said adjusting step;
- a storing step of storing, in storage means, the image signal of the detection area sensed in said image sensing step;
- a shifting step of shifting the detection area;
- and
- an image synthesizing step of synthesizing images of a plurality of detection areas stored in said storage means.
A recording medium including program codes for processing performed by a client device of an image sensing system where a camera apparatus and a client device are connected for controlling the camera apparatus by the client device, said program codes comprising:
- codes for an input step of inputting data for a detection area, which is referred to when a camera parameter is adjusted, in an image signal obtained by sensing an object by image sensing means of the camera apparatus;
- codes for a display step of superimposing the detection area on an image sensed by the image sensing means, based on a position, shape and size of the detection area stored in storage means in advance;
- and
- codes for a shift instructing step of instructing the camera apparatus to shift the detection area.
A recording medium including program codes for processing performed by a client device of an image sensing system where a camera apparatus and a client device are connected for controlling the camera apparatus by the client device, said program codes comprising:
- codes for a detecting step of detecting an image signal of a detection area, which is referred to when a camera parameter is adjusted, in an image signal obtained by sensing an object by image sensing means of the camera apparatus;
- codes for a storing step of storing, in storage means, the image signal of the detection area;
- codes for a shifting step of shifting the detection area;
- and
- codes for an image synthesizing step of synthesizing images of a plurality of detection areas stored in said storage means.
A camera control apparatus for controlling a camera apparatus having:
- image sensing means;
- detection area control means for controlling a detection area in an image signal outputted by the image sensing means;
- and
- adjusting means for adjusting a camera parameter based on an image signal of the detection area, said camera control apparatus comprising:
- display means for displaying an image sensed by the camera apparatus;
- obtaining means for obtaining a shape and size of the detection area from the camera apparatus;
- detection area display means for superimposing the detection area on the image displayed by said display means, based on the shape and size of the detection area obtained by said obtaining means;
- and
- shift instructing means for instructing said detection area control means to shift the detection area.
A camera control method of controlling a camera apparatus having:
- image sensing means;
- detection area control means for controlling a detection area in an image signal outputted by the image sensing means;
- and
- adjusting means for adjusting a camera parameter based on an image signal of the detection area, said camera control method comprising:
- an image display step of displaying an image, sensed by the camera apparatus, on display means included in a camera control apparatus;
- an obtaining step of obtaining a shape and size of the detection area from the camera apparatus;
- a detection area display step of superimposing the detection area on the image displayed on the display means, based on the shape and size of the detection area obtained in said obtaining step;
- and
- a shift instructing step of instructing to shift the detection area.
A recording medium including program codes to be performed by a camera control apparatus for controlling a camera apparatus having image sensing means, detection area control means for controlling a detection area in an image signal outputted by the image sensing means and adjusting means for adjusting a camera parameter based on an image signal of the detection area, said program codes comprising:
- codes for an image display step of displaying an image, sensed by the camera apparatus, on display means included in the camera control apparatus;
- codes for an obtaining step of obtaining a shape and size of the detection area from the camera apparatus;
- codes for a detection area display step of superimposing the detection area on the image displayed on the display means, based on the shape and size of the detection area obtained in said obtaining step;
- and
- codes for a shift instructing step of instructing to shift the detection area.
Dependencies are inferred from the claim text.