Method of detecting phase difference between a pair of images

Details Method of detecting phase difference between a pair of images Method of detecting phase difference between a pair of images

1995-12-12

2000-08-22

Chang, Jon

Image analysis

Applications

Range or distance measuring

382191, 382255, 382278, 2502018, 396128, 356 404, G06K 946

Patent

active

061084352

ABSTRACT:
A method of detecting a phase difference between a pair of images of an object which are formed on a pair of optical sensor arrays through different optical paths, with presence of flare in one of the images, is disclosed. The method includes the steps of: preparing a sensor data group representing a pattern of each image and consisting of sensor data received from each optical sensor array; correcting the sensor data group so as to eliminate a difference in the average value of the sensor data between the optical sensor arrays; preparing a plurality of combinations each having two subgroups corresponding to the pair of optical sensor arrays, each subgroup consisting of a predetermined number of a series of sensor data, which are selected from the sensor data group corrected, such that a portion of the sensor data group from which the subgroup is selected is sequentially shifted; and selecting one of the combinations having a maximum degree of correlation between the subgroups, and detecting a phase difference from positions on the optical sensor arrays which correspond to the subgroups of the selected combination.

REFERENCES:
patent: 4633073 (1986-12-01), Horikawa
patent: 4904855 (1990-02-01), Nishibe et al.
patent: 4956660 (1990-09-01), Takahashi
patent: 5134526 (1992-07-01), Inabata
patent: 5602944 (1997-02-01), Yokoyama et al.
patent: 5608664 (1997-03-01), Mori
patent: 5619301 (1997-04-01), Suzuki et al.

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