Data recognition model construction apparatus and method for constructing data recognition model thereof, and data recognition apparatus and method for recognizing data thereof
Disclosed is a data recognition model construction apparatus. The data recognition model construction apparatus includes a video inputter configured to receive a video, an image composition unit configured to, based on a common area included in each of a plurality of images that form at least a portion of the video, generate a composition image by overlaying at least a portion of the plurality of images, a learning data inputter configured to receive the generated composition image, a model learning unit configured to make a data recognition model learn using the generated composition image, and a model storage configured to store the learnt data recognition model.
1. A data recognition apparatus comprising:
a video inputter configured to receive a video;
an image composition unit configured to obtain at least one common object included in each of a plurality of images that form at least a portion of the video, and obtain a composition image by overlaying a plurality of common areas corresponding to the at least one common object with each other, each of the plurality of common areas being included in a corresponding image among the plurality of images and including the at least one common object, each of the plurality of images including a common area and a background; and
a recognition result provider configured to provide a recognition result of the video by applying the obtained composition image to a data recognition model,
wherein the image composition unit is configured to, based on an attribute of the background, selectively perform either a first operation of overlaying only the plurality of common areas or a second operation of overlaying the plurality of common areas and a plurality of backgrounds corresponding to the plurality of common areas, the first operation or the second operation being selected based on the attribute of the background.
2. The data recognition apparatus as claimed in claim 1 , wherein the attribute of the background includes relevance between the common area and the background, and a ratio of an area corresponding to the background in the plurality of images.
3. The data recognition apparatus as claimed in claim 2 , wherein the image composition unit is further configured to:
based on the relevance between the common area and the background being greater than a first predetermined value perform the second operation of overlaying the plurality of common areas and the plurality of backgrounds corresponding to the plurality of common areas, and
based on the relevance between the common area and the background being less than the first predetermined value perform the first operation of overlaying only the plurality of common areas.
4. The data recognition apparatus as claimed in claim 2 , wherein the image composition unit is further configured to:
based on the ratio of the area corresponding to the background in the plurality of images being greater than a second predetermined value perform the first operation of overlaying only the plurality of common areas, and
based on the ratio of the area corresponding to the background in the plurality of images being less than the second predetermined value perform the second operation of overlaying the plurality of common areas and the plurality of backgrounds corresponding to the plurality of common areas.
5. The data recognition apparatus as claimed in claim 1 , wherein each of the plurality of common areas is configured to include an identical or similar common object from each of the plurality of images.
6. The data recognition apparatus as claimed in claim 1 , wherein the recognition result of the video comprises state information of an object included in the video or information of a surrounding state of the object.
7. The data recognition apparatus as claimed in claim 1 , wherein the data recognition model is a neural network model or a deep learning model which performs computing based on a connection relation among a plurality of network nodes and a weighted value of each of the plurality of network nodes.
8. The data recognition apparatus as claimed in claim 1 , wherein the image composition unit obtains the composition image based on a center of gravity of the common area.
9. The data recognition apparatus as claimed in claim 1 , wherein the image composition unit obtains the composition image by overlaying the common area and a background area around the common area included in each of the plurality of images.
10. The data recognition apparatus as claimed in claim 1 , wherein the image composition unit is configured to compensate a motion of a camera which photographs the video from each of the plurality of images, and obtain the composition image based on the common area included in each of a plurality of motion compensated images.
11. The data recognition apparatus as claimed in claim 1 , further comprising a model update unit which identifies whether the data recognition model is updated and updates the data recognition model according to an identification result.
12. The data recognition apparatus as claimed in claim 1 , further comprising a service provider which provides a service based on a result of recognition of the video.