Image processing apparatus
An image processing apparatus is provided with: a first feature value calculating section calculating a first feature value for each of pixels constituting an image obtained by picking up an image of a subject; a region dividing section dividing the image into multiple regions on the basis of the first feature values; a second feature value calculating section calculating a second feature value for each of the divided regions; a classification section performing classification with regard to which of multiple kinds of attributes each region of the multiple regions has, on the basis of the second feature value; a judgment section judging whether a region having a predetermined attribute exists or not; and a diagnostic support information calculating section correcting an attribute value of the region having the predetermined attribute to calculate diagnostic support information for supporting a diagnosis.
1. An image processing apparatus comprising:
a first feature value calculating section calculating, in an arbitrary region of an image obtained by picking up an image of a subject, a first feature value for each of pixels constituting the arbitrary region;
a region dividing section dividing the arbitrary region into multiple regions on the basis of the first feature values;
a second feature value calculating section calculating a second feature value for each region of the multiple regions divided by the region dividing section;
a classification section classifying each region of the multiple regions divided by the region dividing section into any of multiple kinds of attributes on the basis of the second feature value;
a diagnostic support information calculating section calculating an attribute value based on an area or a number, for each attribute of a same kind among the multiple kinds of attributes classified by the classification section;
a judgment section judging whether a region having a predetermined attribute exists or not among the multiple regions divided by the region dividing section; and
a correction section correcting, when it is judged by the judgment section that the region having the predetermined attribute exists, the attribute value for the region classified into the predetermined attribute on the basis of attribute values calculated for attributes other than the predetermined attribute, wherein
the diagnostic support information calculating section calculates diagnostic support information for supporting a diagnosis for the arbitrary region on the basis of the attribute value corrected by the correction section for the region having the predetermined attribute and the attribute values calculated by the diagnostic support information calculation section for the multiple regions other than the region having the predetermined attribute.
2. An image processing apparatus comprising:
a first feature value calculating section calculating, in an arbitrary region of an image obtained by picking up an image of a subject, a first feature value for each of pixels constituting the arbitrary region;
a region dividing section dividing the arbitrary region into multiple regions on the basis of the first feature values;
a second feature value calculating section calculating a second feature value for each of the regions divided by the region dividing section;
an attribute information storing section storing in advance each of pieces of attribute information about an attribute to be an indicator of a lesion with a high degree of malignancy, an attribute to be an indicator of a lesion with a low degree of malignancy and an attribute for which a benignancy and/or malignancy judgment is difficult to make;
a classification section classifying each of the regions divided by the region dividing section into any of the respective pieces of attribute information stored in the attribute information storing section on the basis of the second feature value calculated by the second feature value calculating section; and
a diagnostic support information calculating section calculating, for the arbitrary region, diagnostic support information for supporting a diagnosis, on the basis of rates of attributes classified by the classification section for each of the regions.
3. The image processing apparatus according to claim 1 , further comprising an attribute information storing section storing in advance each of pieces of attribute information about an attribute to be an indicator of a lesion with a high degree of malignancy, an attribute to be an indicator of a lesion with a low degree of malignancy and an attribute for which a benignancy and/or malignancy judgment is difficult to make; wherein
the classification section classifies each of the regions divided by the region dividing section into any of the respective pieces of attribute information stored in the attribute information storing section on the basis of the second feature value calculated by the second feature value calculating section.
4. The image processing apparatus according to claim 1 , wherein, when any of the multiple regions divided by the region dividing section includes a particular attribute to be an indicator of a remarkable degree of malignancy by the classification section, the diagnostic support information calculating section calculates the diagnostic support information on the basis of the particular attribute irrespective of attributes the other regions have.
5. The image processing apparatus according to claim 2 , wherein
the attribute information storing section further stores attribute information about an attribute to be an indicator of a more remarkable degree of malignancy than the attribute to be an indicator of a lesion with a high degree of malignancy as the respective pieces of attribute information; and
when any of the multiple regions divided by the region dividing section includes the attribute to be an indicator of a remarkable degree of malignancy, the diagnostic support information calculating section calculates the diagnostic support information on the basis of the attribute to be an indicator of a remarkable degree of malignancy irrespective of attributes the other regions have.
6. The image processing apparatus according to claim 3 , wherein
the attribute information storing section further stores attribute information about an attribute to be an indicator of a more remarkable degree of malignancy than the attribute to be an indicator of a lesion with a high degree of malignancy as the each piece of attribute information; and
when any of the multiple regions divided by the region dividing section includes the attribute to be an indicator of a remarkable degree of malignancy, the diagnostic support information calculating section calculates the diagnostic support information on the basis of the attribute to be an indicator of a remarkable degree of malignancy irrespective of attributes the other regions have.
7. The image processing apparatus according to claim 1 , comprising a diagnostic support information storing section storing a range where the diagnostic support information, including a lesion name or a symptom name prepared in advance for the subject with the use of supervised data, exists in an N-dimensional virtual space corresponding to the multiple (N) kinds of attributes; wherein
the diagnostic support information calculating section calculates, from the attribute value calculated for each attribute of the same kind in the virtual space, the diagnostic support information corresponding to the attribute value.