Apparatus and method for controlling a multi-color output of an image of a medical object

• US 8,520,919 B2
• Filed: 06/17/2010
• Issued: 08/27/2013
• Est. Priority Date: 06/17/2009
• Status: Active Grant

• Current Assignee: Karl Storz Se & Co. Kg
• Original Assignee: Karl Storz Se & Co. Kg
• Inventors: Stepp, Herbert, Schachenmayr, Hilmar
• Primary Examiner(s): Sereboff, Neal
• Application Number:
  US12/817,646
• Publication Number:
  US 20100322492A1
• Time in Patent Office: 1,167 Days
• Field of Search: 382/128, 600/160, 600/178, 600/476, 348/45
• US Class Current: 382/128
• CPC Class Codes: A61B 1/043 for fluorescence imaging
• CPC Class Codes: A61B 1/0638 providing two or more wavelengths
• CPC Class Codes: A61B 1/0646 with illumination filters
• CPC Class Codes: A61B 1/0655 Control therefor

Abstract

In a method for controlling a multi-color output of an image of a medical object for assisting medical personnel, the medical object is illuminated with light with an illumination spectrum. By means of an image sensor, image data are acquired for a group of one or more color channels. Image information concerning an additional color channel, which is not among the group of one or more color channels, is generated depending on the acquired image data. An image output device for multi-color output of the image is controlled depending on the acquired image data and the acquired image information.

Claims

1. A method for controlling a multi-color output of an image of a medical object for assisting medical personnel, comprising the following steps:

illuminating the medical object with light with an illumination spectrum;

acquiring actual image data for a group of one or more color channels by means of an image sensor;

acquiring at least one reference image data for an additional color channel by illuminating one or more reference objects with white light or light with another predetermined spectrum;

correlating, using a processor, the one or more reference images and the actual image data;

generating, using the processor, image information concerning the additional color channel based upon the ascertained correlation; and

controlling an image output apparatus for multi-color output of the image, depending on the actual acquired image data and the generated image information for the additional color channel.

2. The method of claim 1, wherein the steps of illuminating and acquiring are performed by an endoscope probe.

3. The method of claim 1, wherein the image information for one image point at least is produced, either depending on the acquired actual image data for an image point or depending on acquired image data for surrounding image points.

4. The method of claim 1, wherein the image information is generated for one image point depending on the actual image data acquired at various points in time.

5. The method claim 1, wherein successive actual image data are acquired on several images of the medical object, and wherein the medical object or a part of the medical object is either identified or tracked in the several images at least, in order to associate image points with the medical object or part of the medical object, and

wherein the image information is generated for one image point depending on the association of the image point with the medical object or with the part of the medical object.

6. The method of claim 1, wherein a lookup table is used to generate the image information.

7. The method of claim 1, wherein the medical object is the reference object, or wherein the reference object is typical with respect to its reciprocal effect with light for medical objects that are to be configured.

8. The method of claim 1, further comprising the steps of:

illuminating the medical object with an excitation spectrum that is different from the illumination spectrum;

acquiring additional image data for the additional color channel by means of the image sensor or another image sensor; and

controlling an image output device depending on the acquired additional image data or depending on the acquired actual image data, the generated image information, and the acquired additional image data.

9. The method of claim 8, wherein

the medical object emits fluorescent light on the basis of illumination with the excitation spectrum as the fluorescent light is acquired by the additional color channel.

10. The method of claim 9, wherein the fluorescence is excited with indo-cyanine green.

11. The method of claim 8, wherein only one video camera is used for acquiring image data, wherein the video camera comprises an image sensor for several color channels or several image sensors for one color channel each.

12. A non-transitory computer readable medium storing a computer program with program code for executing or controlling a method comprising the steps of:

illuminating the medical object with light with an illumination spectrum;

acquiring actual image data for a group of one or more color channels by means of an image sensor;

acquiring at least one reference image data for an additional color channel by illuminating one or more reference objects with white light or light with another predetermined spectrum;

correlating, using a processor, the one or more reference images and the actual image data;

generating, using the processor, image information concerning the additional color channel based upon the ascertained correlation; and

controlling an image output apparatus for multi-color output of the image, depending on the actual acquired image data and the generated image information for the additional color channel.

13. An apparatus for controlling a multi-color output of an image of a medical object, the apparatus comprising:

an illumination device for illuminating the medical object with light with an illumination spectrum and for illuminating one or more reference objects with white light or light with another predetermined spectrum;

one or more image sensors for acquiring actual image data for a group of one or more color channels and for acquiring at least one reference image data for an additional color channel;

a processor for correlating the one or more reference images and the actual image data and to generate the image information concerning the additional color channel based upon the ascertained correlation; and

a control for controlling an image output device for multi-color output of the image depending on the actual acquired image data and the generated image information for the additional color channel.

14. The apparatus of claim 13, wherein the one or more image sensors are endoscopic probes.