Patent
Image processor for correcting distortion of central portion of image and preventing marginal portion of the image from protruding
TLDR
In this article, a distorted optical image formed on an image pickup surface by an optical system is photoelectrically converted by a pickup device and written in memory cells of an image memory designated by write addresses.Abstract:
A distorted optical image formed on an image pickup surface by an optical system is photoelectrically converted by an image pickup device and written in memory cells of an image memory designated by write addresses. When the optical image is read, the image quality at the central portion is improved and the image is prevented from missing at the marginal portion so that the image can preferably be observed by correcting the distortion of an image in the area at the central side of the image pickup surface due to the optical system by read addresses obtained by converting the write addresses and preventing an image in the area at the marginal side from protrusion.read more
Citations
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References
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Patent
Objective lens system for endoscopes
Iwao Kanamori,Minoru Okabe +1 more
TL;DR: In this paper, an objective lens system for endoscopes consisting of a first lens unit having negative refractive power and a second lens unit with positive power is presented. But the objective is to achieve a surface concave on the image side and an aspherical surface arranged on the object side.
Patent
Picture processing apparatus
Kohji Kamejima,Hiroshi Yamamoto,Yoshiyuki Nakano,Masakatsu G. Fujie,Taro Iwamoto,Kazuo Honma +5 more
TL;DR: In this paper, a picture processing apparatus for recognizing an ambient environment as a picture in accordance with the invention, includes a picture input for receiving a distorted picture of a wide angle of view, a picture process unit which corrects the distorted picture from the picture input into an undistorted picture of the view of the wide angle, and a display for displaying the output of the picture processing unit.
Patent
Electronic imaging system and sensor for correcting the distortion in a wide-angle lens
TL;DR: In this paper, a wide-angle lens produces a distorted wideangle optical image, and an imaging sensor, having a surface in optical communication with the wideangle lens, converts the wide-angles optical image into a corresponding output signal.
Patent
Video image capture apparatus for digitally compensating imperfections introduced by an optical system
TL;DR: In this article, a video image capture apparatus including an image sensor for sensing light at a plurality of pixel positions received via an optical system, picture storage means for temporarily storing pixels derived from the image sensor, address generation means for applying differing write and read addresses to the picture storage to effect mapping of input pixels from the sensor to provide output pixels compensating for the effects of imperfections of the optical system is described.
Patent
Image pickup monitoring device
TL;DR: In this paper, the symmetry of the pickup screen is utilized to the image pickup monitoring device which can reduce the number of address converting circuits required for the address processing circuit 8, and the video signal is monitored and outputted to obtain easy operability and eliminate the need for the camera visual field moving device.