Image-data reduction technique
    11.
    发明专利

    公开(公告)号:GB2187356A

    公开(公告)日:1987-09-03

    申请号:GB8604864

    申请日:1986-02-27

    Applicant: RCA CORP

    Abstract: A foveated electronic camera 100 ie. one giving a high resolution area and a low resolution area, like the human eye, employs a data reduction means 108 including a spatial-frequency spectrum analyzer 202 and window gates 204 defining selectable spatial windows. The high resolution, wide field of view signal from imager 106 is analysed by spectrum analyser 202 to give signals from contiguous subspectra bands of the image spatial frequency spectrum, in particular from adjacent octaves of the spatrial spectrum. The subspectra pass through window gates 204 to reduce the field of view of higher resolution subspectra, preferably the number of pixels in each subspectrum being the same (Fig. 5). The position of the high resolution subspectrum within the field of view is selectable. The spectrum analyser preferably employs known 'Burt Pyramid' or 'Filter-Subtract-Decimate Pyramid' filter techniques. The camera finds application in surveillance, robotic and target tracking techniques where computer handling of large amounts of high resolution data is not practical.

    12.
    发明专利
    未知

    公开(公告)号:FI852489A0

    公开(公告)日:1985-06-24

    申请号:FI852489

    申请日:1985-06-24

    Applicant: RCA CORP

    Abstract: Noise reduction is achieved, without the introduction of noticeable artifacts in the displayed image, using (1) a non-ringing, non-aliasing, localized transfer, octave-band spectrum analyzer for separating the video signal representing the image into subspectra signals, (2) separate coring means for one or more of the analyzed subspectra signals, and (3) then a synthesizer employing one or more non-ringing, non-aliasing filters for deriving an output image-representing signal from all of the subspectra signals.

    13.
    发明专利
    未知

    公开(公告)号:FI842489A

    公开(公告)日:1984-12-28

    申请号:FI842489

    申请日:1984-06-20

    Applicant: RCA CORP

    Abstract: PURPOSE: To efficiently and accurately obtain a complex signal by inserting a delay and forming information samples, simultaneously generated in each adder when signals, having time deviation in a signal group is transmitted thereby composing the composite signal in real time. CONSTITUTION: 1st input terminals of relay means 100-2 to 100-n are connected to the 1st output terminals of relay means 100-1 to (n-1) respectively. Then, sampling frequency clocks CL1 to CLn are applied to other input terminals, and other input terminals are corrected by correcting parts 345 to 349, via delays 340 to 344 and connected to adders ADD 359 to 363, respectively. For example, when a thirdly generated signal and a fourthly generated signal are combined and transmitted, it causes time deviation. Then, the 3rd signal precedented generated is delayed for a prescribed time by the delay 342 to form an information sample practically simultaneously generated in the adder 359. Thus, since the composite signal is composed only by a realtime processing, a complex signal is obtained. efficiently and accurately.

    14.
    发明专利
    未知

    公开(公告)号:IT8423399D0

    公开(公告)日:1984-10-31

    申请号:IT2339984

    申请日:1984-10-31

    Applicant: RCA CORP

    Abstract: Noise reduction is achieved, without the introduction of noticeable artifacts in the displayed image, using (1) a non-ringing, non-aliasing, localized transfer, octave-band spectrum analyzer for separating the video signal representing the image into subspectra signals, (2) separate coring means for one or more of the analyzed subspectra signals, and (3) then a synthesizer employing one or more non-ringing, non-aliasing filters for deriving an output image-representing signal from all of the subspectra signals.

    15.
    发明专利
    未知

    公开(公告)号:FI842489A0

    公开(公告)日:1984-06-20

    申请号:FI842489

    申请日:1984-06-20

    Applicant: RCA CORP

    Abstract: PURPOSE: To efficiently and accurately obtain a complex signal by inserting a delay and forming information samples, simultaneously generated in each adder when signals, having time deviation in a signal group is transmitted thereby composing the composite signal in real time. CONSTITUTION: 1st input terminals of relay means 100-2 to 100-n are connected to the 1st output terminals of relay means 100-1 to (n-1) respectively. Then, sampling frequency clocks CL1 to CLn are applied to other input terminals, and other input terminals are corrected by correcting parts 345 to 349, via delays 340 to 344 and connected to adders ADD 359 to 363, respectively. For example, when a thirdly generated signal and a fourthly generated signal are combined and transmitted, it causes time deviation. Then, the 3rd signal precedented generated is delayed for a prescribed time by the delay 342 to form an information sample practically simultaneously generated in the adder 359. Thus, since the composite signal is composed only by a realtime processing, a complex signal is obtained. efficiently and accurately.

    16.
    发明专利
    未知

    公开(公告)号:DE2724122A1

    公开(公告)日:1977-12-15

    申请号:DE2724122

    申请日:1977-05-27

    Applicant: RCA CORP

    Abstract: Perfections introduced into an electronic display device comprising an inner vacuum blister having a front wall, a rear wall very little separated from it and a plurality of channels extending therebetween; a phosphor screen along the internal surface of said front wall, in each of said channels; *** view image (Machine-translation by Google Translate, not legally binding)

    17.
    发明专利
    未知

    公开(公告)号:IT1125881B

    公开(公告)日:1986-05-14

    申请号:IT2780579

    申请日:1979-12-03

    Applicant: RCA CORP

    Abstract: In a display device a modulator structure may be formed by disposing on a surface of the back wall a plurality of first control electrodes. A modulator member having a smoothly continuous surface has disposed thereon a plurality of second control electrodes. The surfaces of the back wall and the top member having the electrodes thereon are joined together to form opposing pairs of control electrodes.

    18.
    发明专利
    未知

    公开(公告)号:BR8403141A

    公开(公告)日:1985-06-11

    申请号:BR8403141

    申请日:1984-06-27

    Applicant: RCA CORP

    Abstract: PURPOSE: To efficiently and accurately obtain a complex signal by inserting a delay and forming information samples, simultaneously generated in each adder when signals, having time deviation in a signal group is transmitted thereby composing the composite signal in real time. CONSTITUTION: 1st input terminals of relay means 100-2 to 100-n are connected to the 1st output terminals of relay means 100-1 to (n-1) respectively. Then, sampling frequency clocks CL1 to CLn are applied to other input terminals, and other input terminals are corrected by correcting parts 345 to 349, via delays 340 to 344 and connected to adders ADD 359 to 363, respectively. For example, when a thirdly generated signal and a fourthly generated signal are combined and transmitted, it causes time deviation. Then, the 3rd signal precedented generated is delayed for a prescribed time by the delay 342 to form an information sample practically simultaneously generated in the adder 359. Thus, since the composite signal is composed only by a realtime processing, a complex signal is obtained. efficiently and accurately.

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