Multi-focus camera apparatus and image processing method and program used therein

1. A multi-focus camera apparatus that photographs the same region by a plurality of cameras having different focal lengths, the camera apparatus comprising:

detection means for detecting a specified target in a plurality of images photographed by the cameras;

region acquisition means for obtaining, in the respective images, regions comprising pixels having substantially the same relationships between blurriness degrees as relationships between blurriness degrees regarding the specified target in the respective images detected by the detection means; and

image processing means for carrying out image processing to cause the regions obtained by the region acquisition means to be displayed differently from other regions.

2. The multi-focus camera apparatus according to claim 1 wherein the blurriness degree regarding the specified target in each of the images is estimated from a blurriness degree of the specified target in at least two immediately preceding images photographed serially by a corresponding one of the cameras.

3. The multi-focus camera apparatus according to claim 1 wherein the image processing is at least one of region fill processing, mosaic processing, and template insertion processing.

4. The multi-focus camera apparatus according to claim 2 wherein the image processing is at least one of region fill processing, mosaic processing, and template insertion processing.

5. An image processing method for displaying the same region photographed by a plurality of cameras having different focal lengths constituting a multi-focus camera apparatus, the method comprising the steps of:

detecting a specified target in a plurality of images photographed by the plurality of cameras;

obtaining, in the respective images, regions comprising pixels having substantially the same relationships between blurriness degrees as relationships between blurriness degrees regarding the specified target detected in the respective images; and

carrying out image processing to cause the obtained regions to be displayed differently from other regions.

6. The image processing method according to claim 5 wherein the blurriness degree regarding the specified target in each of the images is estimated from a degree of blurriness of the specified target in at least two immediately preceding images photographed serially by a corresponding one of the cameras.

7. The image processing method according to claim 5 wherein the image processing is at least one of region fill processing, mosaic processing, and template insertion processing.

8. The image processing method according to claim 6 wherein the image processing is at least one of region fill processing, mosaic processing, and template insertion processing.

9. A tangible computer-readable recording medium storing a program for displaying the same region photographed by a plurality of cameras having different focal lengths constituting a multi-focus camera apparatus, the program causing a computer to execute the procedures of:

detecting a specified target in a plurality of images photographed by the plurality of cameras;

obtaining, in the respective images, regions comprising pixels having substantially the same relationships between blurriness degrees as relationships between blurriness degrees regarding the specified target detected in the respective images; and

carrying out image processing to cause the obtained regions to be displayed differently from other regions.