Image processing system
View Patent ↗A recognition object detecting portion detects a recognition object existing in each of images which are captured in series at different time points by a camera. Images of the detected recognition object are stored in a memory. A recognition object condition judging portion determines whether image areas of the recognition object are recognizable. A movement amount detecting portion detects a movement amount of the recognition object by using the image areas of the recognition object stored in the memory. A sub-area detecting portion detects a sub-area to be recognized, by using the image areas of the recognition object read out from the memory, in accordance with the movement amount of the recognition object. A recognition portion performs recognition processing on the sub-areas. A recognition result integration portion integrates recognition results of the sub-areas including recognized characters and/or recognized patterns and the corresponding reliabilities, respectively.
1. An image processing system which processes images obtained in series at different time points by capturing a recognition object, comprising:
a memory;
an image input unit configured to store the images in the memory;
a recognition object condition judging portion configured to determine whether or not the recognition object existing in each of the images is recognizable in accordance with a preset determination condition;
a recognition object detecting portion configured to detect image areas of the recognition object determined as recognizable by the recognition object condition judging portion;
a movement detecting portion configured to detect a movement amount of the recognition object based on the images stored in the memory;
a sub-area detecting portion configured to detect sub-areas to be recognized respectively in the image areas of the recognition object read out from the memory, in accordance with the movement amount of the recognition object detected by the movement amount detecting portion;
a recognition portion configured to perform recognition processing on the sub-areas detected by the sub-area detecting portion and to store recognized characters and/or recognized patterns and the corresponding reliabilities into the memory as recognition results for the sub-areas, respectively; and
a recognition result integration portion configured to read out the recognition results for respective sub-areas from the memory, to integrate the recognition results in the light of the reliabilities, and to output an integrated result.
2. The image processing system according to claim 1 , further comprising an image processing portion configured to perform image quality improvement processing to improve quality of one of an unrecognizable image or an area of the image.
3. The image processing system according to claim 2 , wherein the recognition object condition judging portion determines again whether or not the recognition object is recognizable by using one of the image of the recognition object or the area of the image quality-improved by the image quality improvement processing.
4. The image processing system according to claim 2 , wherein the recognition portion performs recognition processing again by using one of the image of the recognition object or the area of the image quality-improved by the image quality improvement processing.
5. The image processing system according to claim 1 , further comprising a camera, wherein
when the recognition object condition judging portion determines that an image of the recognition object or an area of the image is unrecognizable, the recognition object condition judging portion outputs information prompting a user to move the recognition object to make the recognition object recognizable within an image capturing range of the camera.
6. The image processing system according to claim 1 , further comprising a recognition termination determining portion configured to terminate the recognition processing of the sub-area when a preset recognition terminating condition is fulfilled as a result of the recognition processing completed by the recognition portion.
7. The image processing system according to claim 1 , further comprising an output device, wherein
the output device outputs the integrated result obtained by the recognition result integration portion and one of an image or an area of the mage of the recognition object.