SU1157703A1 - Method of generating picture signal - Google Patents

Abstract

A METHOD OF FORMING AN IMAGE SIGNAL, including converting an optical image into a video signal of a clear image, generating a defocused image video signal and subtracting a clear image of a defocused image signal from a video signal, in order to ensure the adjustment of spatial resolution, generating a template, and creating a signal template, creating a video image signal of the defocused image. clear video signal into charge signals The cells of the device matrix with charge coupling, the implementation of the non-directional spreading of charge packets by supplying the gate bus sections of the memory section and the output register of the matrix of rectangular voltage pulses, whose amplitude is equal and the polarity is opposite to the constant voltage on the gate buses of the matrix, and converting the charge of the i-th packets into the video signal of the out-of-focus image. (L

Description

ate 1

This invention relates to television technology and can be used to analyze and correct image flaws. A known method of forming an image signal involves projecting an optical image onto the first and second video signal sensors and converting the optical image into the first and second video signals, respectively, and subtracting these video signals. The closest to the invention is a method of forming an image signal, including converting an optical image into a video signal of a clear image, forming a video signal of a defocused image and subtracting a clear image of a defocused image from a video signal. A disadvantage of the known methods is the impossibility of adjusting the spatial resolution of the image. The goal of the acquisition is to provide adjustment of the spatial resolution. To achieve this, in the method of forming an image signal, which includes converting an optical image into a clear video signal, generating a defocused image video signal and subtracting a clear image of a defocused image video signal from a video signal, generating the defocused image video signal is performed by sequentially converting a clear image image signal of a defrost image signal by sequentially converting the clear image of the defocused image signal. devices with charge-coupled communication (CCD), the implementation of of the charge spreading, new packets by feeding the gate section of the memory section and the output register of the CCD matrix of rectangular voltage pulses, the amplitude of which is equal, and the polarity is opposite to the constant voltage on the gate ports of the CCD matrix and converting the charge packets into the video signal defocused image. The drawing shows a structural electrical circuit of the device for implementing the image signal forming method. The device for implementing the image signal forming method comprises the first 1 and second 2 CCDs, the second 2 matrix located in the light-shielding screen 3, the synchro-generator 4, the square-wave generator 5 and 6 and second 7 elements OR. Each matrix 1 and 2 consists of accumulation section 8, memory section 9 and input 10 and all 11 registers. In addition, the device comprises a subtraction unit 12 and a video monitoring unit 13. The method is carried out as follows. On the surface of the section 8 of the matrix I project an optical image. In matrix 1, the optical image is converted optoelectrically into a semi-frame of a clear image in the form of charge packets (ZP); same matrix. At the same time, video signals are outputted to block 12. In a matrix 2, insulated from light by a light shield 3, spatial low-frequency filtering of the clear image introduced, i.e. its spectral conversion by "suppressing high frequencies" creates out of focus from a clear image. For this, the charge packets from section 8 are shifted to section 9, and then to the gate buses of section 9 is fed from the first output of generator 5 through an element OR 6 a rectangular pulse with a duration t and amplitude Ui. This causes the required spreading of the ZP vertically. After this, the same gate buses of section 9 are given a signal from the second output of the synchro-generator 4 shift to the output register of 11 charge packets filtered vertically. Similarly, a rectangular pulse tg, Ug from the second output of the generator 5 through the element OR 7 and the signal from the third output of the clock generator 4 are successively applied to the gate tires of the output register 11. The charging packets are additionally spread horizontally. Video signals are output to block 12. Simultaneously with the conversion of the RFP in matrix 2 in matrix 1, another half-frame of a clear image is created and output to block 12. In block 12, the defocused image of the previous half-frame is subtracted from the clear image of the next half-frame. The video pulse at the output of block 12 is used to modulate the electron beam in the kinescope of the video control unit 13. The beam movement is synchronized with the movement of charges, and the processed image is displayed on the screen of the kinescope successively in line with the upper spatial frequencies. Thus, an effective electronic smooth adjustment of the spatial resolution of the image is achieved, an adjustment range from a slight underlining of the contours to the image leaving only the contour composition in the image is provided, and the simplicity is 34

paratroop implementation and image processing, selection of small objects of marriage in real time. against the background of powerful periodic structures,

All this makes it possible to apply the proposals in such areas where other methods are not very effective for processing low contrast.

1157703

etc. This method can be used

Claims (1)

A METHOD FOR FORMING AN IMAGE SIGNAL, including converting an optical image into a clear video signal, generating a defocused video signal and subtracting a clear image video signal from the defocused image, characterized in that, in order to provide spatial resolution adjustment, the video signal and defocused image are produced in series converting a clear video signal into charge packets arrays of devices with charge coupling, the implementation of the non-directional spreading of charge packets by supplying to the gate buses the memory sections and the output register of the matrix of rectangular voltage pulses whose amplitude is equal and the polarity is inverse to the constant voltage on the gate buses of the matrix, and converting the charge packets into the video signal of the defocused image.