JP2008193530A5

JP2008193530A5 -

Info

Publication number: JP2008193530A5
Application number: JP2007027373A
Authority: JP
Filing date: 2007-02-06
Publication date: 2010-03-18
Anticipated expiration: 2027-02-06

Claims

In an image recording apparatus for acquiring a main image obtained by imaging a subject and a distance image representing a distance to the subject, and encoding and recording the main image according to distance information to the subject .
Distance calculation means for dividing the distance image into a plurality of blocks and calculating distance information for each block;
Code amount determining means for dividing the main image into a plurality of blocks so as to correspond to the distance image, and determining a code amount for each block of the main image based on distance information for each block of the distance image; ,
An image recording apparatus comprising: a recording unit that encodes and records the main image according to the code amount determined by the code amount determining unit .

The image recording apparatus according to claim 1, further comprising an imaging unit that simultaneously acquires the main image and the distance image by imaging.

Further comprising feature information calculating means for calculating feature information for each block of the main image;
The code quantity determining means according to claim 1 or 2, characterized in that to determine the amount of code based on the distance information for each block of the feature information and the range image for each block of the main image Image recording device.

4. The code amount determination unit according to claim 1, wherein the code amount determination unit increases the code amount as the distance to the subject represented by the distance information for each block of the distance image decreases. 5. The image recording apparatus described in 1.

Shooting condition acquisition means for acquiring shooting conditions of the main image;
The image recording apparatus according to any one of claims 1 to 4, characterized in that it comprises further, and the object distance setting means for setting an object distance of assigning more the amount of code based on the imaging conditions.

The image recording apparatus according to claim 5 , wherein the photographing condition is a photographing mode mainly for photographing a close-up scene or a photographing mode mainly for photographing a distant view .

The object distance setting unit, when the imaging mode is an imaging mode for mainly capturing the foreground is to claim 6, characterized in that setting the short distance side than a specified value the subject distance to be allocated more the amount of code The image recording apparatus described.

The object distance setting unit, when the imaging mode is an imaging mode for mainly capturing a distant view, to claim 6, characterized in that setting the long distance side than a specified value the subject distance allocate more the amount of code The image recording apparatus described.

Edge information calculating means for calculating edge information of the subject from the distance image;
The code quantity determining means, an image recording apparatus according to any one of claims 1 to 8, characterized in that to determine the amount of code based on the edge information of the distance image.

An image recording method in an image recording apparatus for acquiring a main image obtained by imaging a subject and a distance image representing a distance to the subject and encoding and recording the main image according to distance information to the subject Because
A distance calculating step of dividing the distance image into a plurality of blocks and calculating distance information for each block;
A code amount determining step for dividing the main image into a plurality of blocks so as to correspond to the distance image, and determining a code amount for each block of the main image based on distance information for each block of the distance image; ,
And a recording step of encoding and recording the main image according to the code amount determined in the code amount determination step .

A computer of an image recording apparatus for acquiring a main image obtained by imaging a subject and a distance image representing a distance to the subject, and encoding and recording the main image according to distance information to the subject .
Distance calculation means for dividing the distance image into a plurality of blocks and calculating distance information for each block;
Code amount determining means for dividing the main image into a plurality of blocks so as to correspond to the distance image, and determining a code amount for each block of the main image based on distance information for each block of the distance image; ,
A program that functions as a recording unit that encodes and records the main image according to a code amount determined by the code amount determination unit .