# US 7,465,908 B2 · Image acquisition apparatus for use with a microscope, an image recording system that uses the image acquisition apparatus, and an image storage method

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- Number: US 7,465,908 B2
- Document ID: US7465908B2
- Status: Granted
- Kind: B2
- Application number: 11/896,656
- Filed: 2007-09-05
- Published: 2008-01-10
- Granted: 2008-12-16
- Earliest claimed: 2005-02-03
- Assignees: Olympus Corporation
- Inventors: Hironori Kishida
- Web page: https://patentgrep.com/patent/US7465908B2

## CPC

- G02B 21/365: {Control or image processing arrangements for digital or video microscopes (G02B21/361, G02B21/362 take precedence)}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

An image acquisition apparatus is disclosed that includes: an image pickup element that acquires images obtained using a microscope; a change detector that detects the amount of change between an image acquired by the image pickup element and a subsequent image acquired by the image pickup element; and a data-reduction processor that enables reduced-data images to be output, as well as images that have not been subject to data reduction or that have been subject to a different rate of data-reduction depending on the amount of change detected by the change detector. An image recording system that uses the image acquisition apparatus is also disclosed, as well as an associated method.

## Claims

### Claim 1

An image acquisition apparatus for use with a microscope comprising:
an image pickup element that acquires images obtained using the microscope;
a controller;
a change detector that, when operated by the controller, detects the amount of change between an image acquired by the image pickup element and a subsequent image acquired by the image pickup element and outputs a comparison result signal;
a compression means that, depending on a signal received from the controller and the value of the comparison result signal output by the change detector, either compresses observed pixels acquired by the image pickup element so as to output reduced-data images, or outputs image data from the image pickup element without performing data compression; and
a timer;
wherein
when the compression means is operated by the controller so as to output reduced-data images, a compression ratio of the compression means is changed to accomplish compression of data output by the image acquisition apparatus based on the amount of change detected by the change detector; and
when image acquisition is directed, images are output from the image acquisition apparatus for a period of time as determined by the timer.

### Claim 2 (depends on 1)

An image recording system comprising:
the image acquisition apparatus as set forth in claim 1;
a microscope that provides images of a specimen as input to said image acquisition apparatus; and
a storage means that stores image data output by said image acquisition apparatus.

### Claim 3 (depends on 2)

The image recording system of claim 2, wherein the image pickup element is controlled by the controller to acquire images at different rates and, depending on the rate of image acquisition, the image pickup element acquires either motion picture images or time-lapse photography images.

### Claim 4

An image storage method for storing photographic images of an object that is observed with a microscope, said method comprising the following steps, performed in the order indicated:
(a) acquiring images obtained using the microscope by using an image pickup element that is controlled by a controller so as to pick up relayed images from the microscope;
(b) when directed by the controller, detecting the amount of change between an image acquired by the image pickup element and a subsequent image acquired by the image pickup element and generating a comparison result signal;
(c) depending on a signal from the controller and the value of the comparison result signal generated in step (b) above, either performing reduced-data processing and outputting reduced-data images, or outputting image data as acquired from the microscope without reduced-data processing; and
(d) storing image data output in step (c);
wherein
when performing reduced-data processing in step (c), a compression ratio of the pixel information is changed based on the amount of change detected in step (b) above.

### Claim 5 (depends on 4)

The image storage method of claim 4, and further including the following step, performed in the order indicated:
(e) displaying the image data stored in step (d).