System and method for image fog scene detection
AssigneesKabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
InventorsJonathan Yen, William C. Kress
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Abstract
The subject application is directed to a system and method for image fog scene detection. Electronic image data is first received and divided into image regions, with each region consisting of a plurality of pixels. Next, a comparison matrix is generated corresponding to each image region based upon a comparison of minimum intensity values associated with corresponding pixels to a threshold value. An entry of at least one of the comparison matrices is then tested for a preselected value. The received electronic image data is then identified as inclusive of a fog scene based upon the output of the test on the entry of the comparison matrix. Based upon the identification, fog scene detection data representing an identified fog scene is then generated.
Claims20
An image fog scene detection system comprising:
- means for receiving electronic image data;
- segmentation means adapted for dividing received electronic image data into a plurality of image regions, each image region being comprised of a plurality of pixels;
- comparison means for generating a comparison matrix corresponding to each image region in accordance with a comparison of minimum intensity values associated with corresponding pixels to a threshold value;
- testing means for testing an entry of at least one comparison matrix for a preselected value;
- identifying means for identifying received electronic image data as inclusive of a fog scene in accordance with an output of the testing means;
- and
- means for generating fog scene detection data representative of an identified fog scene in accordance with an output of the identifying means.
A method for image fog scene detection comprising:
- receiving electronic image data;
- dividing received electronic image data into a plurality of image regions, each image region being comprised of a plurality of pixels;
- generating a comparison matrix, using a processor and associated memory, corresponding to each image region in accordance with a comparison of minimum intensity values associated with corresponding pixels to a threshold value;
- testing an entry of at least one comparison matrix for a preselected value;
- identifying received electronic image data as inclusive of a fog scene in accordance with the testing;
- and
- generating fog scene detection data representative of an identified fog scene.
Apparatus comprising a non-transitory storage medium storing a program having instructions which when executed by a processor will cause the processor to detect image fog, the instructions of the program for:
- receiving electronic image data;
- dividing received electronic image data into a plurality of image regions, each image region being comprised of a plurality of pixels;
- generating a comparison matrix corresponding to each image region in accordance with a comparison of minimum intensity values associated with corresponding pixels to a threshold value;
- testing an entry of at least one comparison matrix for a preselected value;
- identifying received electronic image data as inclusive of a fog scene in accordance with the testing;
- and
- generating fog scene detection data representative of an identified fog scene.
Dependencies are inferred from the claim text.