RU2543985C1 - Method of generating television image signals of different spectral regions - Google Patents

Abstract

FIELD: physics.

SUBSTANCE: method is carried out by generating television image signals of different spectral regions, which includes detecting an input radiation flux F'(λ) within a wide spectral interval from λ₁ to λ_n; generating therefrom three separate radiation fluxes F₁(λ), F₂(λ) and F₃(λ); generating in a first channel of radiation flux F₁(λ) in the visible spectral region colour television video signals U_R(t), U_G(t) and U_B(t); generating in a second channel of radiation flux F₂(λ) in the visible and near-infrared spectral region spectrozonal television video signals U_Δλ1(t), U_Δλ2(t) and U_Δλ3(t); generating in a third channel, based on the radiation flux F₃(λ) in the thermal infrared spectral region, thermal imaging video signals U_Δλ4(t) and U_Δλ5(t). Before generating image signals, in the first channel, the radiation flux F₁(λ) is further split into three identical fluxes; in the second channel, the radiation flux F₂(λ) is further split into three identical fluxes; and in the third channel, the radiation flux F₃(λ) is further split into two identical fluxes; each separate flux is then passed through a separate optical filter. The spectral characteristic of the optical filter for the first channel corresponds to detection zones of light flux in the red (R), green (G) and blue (B) regions of the visible spectral region; for the second channel, the spectral characteristic of the optical filter corresponds to selected detection zones Δλ₁, Δλ₂ and Δλ₃ of radiation flux in the visible and near-infrared spectral regions and for the third channel corresponds to detection zones Δλ₄ and Δλ₅ in the thermal infrared spectral region. Further, the method includes separate conversion of each radiation flux into an image signal, after which the obtained groups of video signals for the first, second and third channels are amplified, followed by conversion of analogue video signals to digital, digital aperture processing of the video signals and gamma correction of the video signals and using the colour television U_R(t), U_G(t) and U_B(t), spectrozonal television U_Δλ1(t), U_Δλ2(t) and U_Δλ3(t) and thermal imaging U_Δλ4(t) and U_Δλ5(t) digital video signals for combined processing thereof. The method further includes an operation for subtraction or summation of video signals with each other, replacing part of the image of one video signal with part of the image of another, changing the polarity of video signals, dividing the video signals into low-frequency and high-frequency components, followed by displaying original and newly generated video signals on video monitor screens for visual perception of images and automatic analysis.

EFFECT: high resolution of television images and enabling real-time change of detection zones of radiation flux for viewing objects in different spectral regions of the optical spectrum.

4 cl, 1 dwg

Description

The present invention relates to the field of applied television and may find application for video surveillance and analysis of environmental objects. It provides for the joint formation of black-and-white, color, spectrozonal and thermal imaging images by recording and converting the radiant flux of the visible, near and thermal infrared regions of the spectrum into television image signals. It can be used in vision systems for solving problems of recognition and identification of objects of multicomponent images.

To observe objects of the earth's surface from aircraft (LA), various types of optoelectronic and television (hereinafter - TV) systems are used. They register the radiant (light) flux within a wide spectral range from λ ₁ to λ _n . The principles of separate formation of video signals using separate black-and-white, color and spectrozonal TV cameras, as well as using thermal imaging (TPV) cameras for visual analysis of images of objects, have been duly reflected in domestic and foreign literature [1-6].

For the formation of black-and-white and color TV images, the registration of the light flux in the visible region of the spectrum is used. In the transmitting path of the TV system, image signals are generated and processed, and in the receiving path they are displayed on the screen of video monitoring devices in the form of black and white or color images [1, 2]. Spectrozonal TV images can be formed by recording the radiant (light) flux in the ultraviolet (UV), visible (VI) and near infrared (IR) spectral regions [3]. The information content of such images can be significantly higher (tens of times) compared to color RGB images and especially when distinguishing between objects of the earth’s surface that have the same spatial features (in shape, size, etc.) [4].

TV observation of objects at night can be carried out by recording the radiant flux in the thermal part of the IR spectral region in the spectral regions of 3-5 μm and 8-12 μm [5]. Today, there is a large class of thermal imaging devices in which matrix photodetectors operating in broadcast TV format are used to register the radiated radiant flux from objects, which makes such systems in some cases indispensable for observing objects of the earth's surface at night, even in black and white . The generated signals can be presented in analog or digital form.

и двух цветоразностных сигналов $$U_{R-Y}^{\text{'}}$$

и $$U_{B-Y}^{\text{'}}$$

. Далее осуществляют их преобразование и в цифровую форму путем выполнения операций их аналого-цифрового преобразования, мультиплексирование цифрового сигнала яркости и двух цветоразностных сигналов, а также отдельно сформированных цифровых синхросигналов, для их последующей передачи по каналу связи в последовательном коде. В приемной части ТВ системы - осуществляются обратные операции преобразования сигналов с формированием исходных аналоговых ТВ сигналов U_R, U_G, U_B и сигналов синхронизации. Далее, получаемые сигналы отображаются на экране ТВ приемника.The principle of constructing broadcast television systems with digital signal processing is shown in [4, 7]. Based on three analog TV signals of the primary colors U _R , U _G , U _B obtained by registering the light flux in the visible part of the spectrum, one luminance is formed $$U_Y^{\text{'}\text{'}}$$

and two color difference signals $$U_{R-Y}^{\text{'}\text{'}}$$

and $$U_{B-Y}^{\text{'}\text{'}}$$

. Then they are converted to digital form by performing operations of their analog-to-digital conversion, multiplexing a digital luminance signal and two color-difference signals, as well as separately generated digital clock signals, for their subsequent transmission over a communication channel in a serial code. In the receiving part of the TV system, reverse operations of signal conversion are carried out with the formation of the original analog TV signals U _R , U _G , U _B and synchronization signals. Further, the received signals are displayed on the TV receiver screen.

As the closest analogue of the claimed invention, according to the totality of the signs and operations on the signals, the method of forming and displaying color, spectrozonal and thermal imaging images [8] according to the application in Rospatent No. 2013124348 of 05/28/2013 was adopted. The essence of the method is as follows. A method for generating television image signals of different parts of the spectrum includes registering the input radiant flux F ′ (λ) within a wide spectral range from λ ₁ to λ _n , forming three separate radiant fluxes F ₁ (λ), F ₂ (λ) and F _{3 from it} (λ), the formation in the first channel of the radiant flux F ₁ (λ) of the visible part of the spectrum of color television video signals U _R (t), U _G (t) and U _B (t), the formation in the second channel of the radiant flux F ₂ (λ) visible and near infrared spectral region of the video spectrum signals U _Δλ1 (t), U _Δλ2 (t) and U _Δλ3 (t), the formation in the third channel based on the radiant flux F ₃ (λ) of the thermal infrared region of the spectrum of the thermal imaging signals U _Δλ4 (t) and U _Δλ5 (t).

To generate and display signals of color, spectrozonal and thermal images, registration of the radiant flux within a wide spectral range from λ ₁ to λ _n , its splitting into two identical fluxes is provided. After splitting the input radiant flux into two identical fluxes, they are passed through two optical filters, the first of which has a spectral characteristic covering the spectral region in the visible spectral region from 0.38 to 0.76 μm, and a radiant flux F is formed at the output of the first filter ₁ (λ), and the spectral characteristic of the second optical filter covers the spectral region in the visible and near infrared (IR) spectral regions from 0.38 to 2.5 μm and form a radiant flux F ₂ (λ) at the output of the second optical filter.

Next, the first radiant flux F ₁ (λ) is projected onto the first multisignal transducer истый radiant flux-signal ’, which has mosaic color filters of the RGB type on the surface of its photodetector that correspond to the light flux detection zones in red (R), green (G) and blue ( C) the visible region of the spectrum, then the light fluxes F _R (λ), F _G (λ) and F _B (λ) are converted into color television signals U _R (t), U _G (t) and U _B (t).

The second radiant flux F ₂ (λ) is projected onto the second multisignal transducer истый radiant flux-signal ’, which has mosaic spectrozonal optical filters with their spectral characteristics on the surface of the photodetector corresponding to the selected detection zones Δλ ₁ Δλ ₂ and Δλ _{3 of the} radiant flux in the visible and near IR spectral region where, after spectral-zone optical filters, the radiant fluxes F (Δλ ₁ ), F (Δλ ₂ ) and F (Δλ ₃ ) are converted into video signals of spectrozonal television U _Δλ1 (t), U _Δλ2 (t) and U _Δλ3 (t) .

According to this method, a third channel is additionally organized, within a wide spectral range from λ ₁ to λ _n , for which the input radiant flux F ′ (λ) is passed through an infrared lens, the spectral characteristic of which covers the thermal portion of the IR region of the spectrum, and form a radiant flux F ₃ (λ), which is projected onto the third “radiant flux-signal” two-signal transducer and converted into the thermal imaging signals U _Δλ4 (t) and U _Δλ5 (t) corresponding to the recording zones Δλ ₄ 3-5 μm and Δλ ₅ 8-12 μm thermal section IR ₂ and IR ₃ areas of the spectrum.

The obtained groups of video signals amplify, convert analog signals to digital, perform digital aperture and gamma correction and other types of video signal processing aimed at improving image quality, then digital video signals of color television U _R (t), U _G (t) and U _B ( t), spectrozonal television U _Δλ1 (t), U _Δλ2 (t) and U _Δλ3 (t) and thermal imaging U _Δλ4 (t) and U _Δλ5 (t) are used for their joint processing by using the operations of subtracting or summing the video signals among themselves, replace part of a single video signal image ala part of another image, change of polarity of video signals, the separation of the video on the low and high frequency components, and perform other operations more original and newly formed video signals are simultaneously or sequentially displayed on the screen of a monitor device for the visual perception of the image, and use the generated video signals for automatic video analysis.

The disadvantage of the considered method, firstly, is the reduction of the resolving power of the TV image through the use of two-signal and multi-signal converters ″ radiant (light) stream-signal ″. If in the original photodetector matrix the maximum possible number of photosensitive decomposition elements can be equal to the value of Z ² , then for the same multi-signal photodetector matrix its value is equal to the value of Z ² / m, where m is the number of generated image signals.

Secondly, when using multi-signal transducers ″ radiant (light) flux-signal ″, changing the spectral characteristics of optical filters to select other registration areas of the radiant (light) flux requires replacing the photodetector itself, which does not ensure the formation of TV image signals for different recording zones and selected spectral regions.

The technical result is an increase in the resolving power of television images and the ability to quickly change the location of the registration areas of the radiant flux for observing objects in different spectral regions of the optical spectrum.

The technical result is achieved by the fact that in the method of generating television image signals of various parts of the spectrum, including recording the input radiant flux F ′ (λ) within a wide spectral range from λ ₁ to λ _n , the formation of three separate radiant fluxes F ₁ (λ) from it, F ₂ (λ) and F ₃ (λ), the formation in the first channel of the radiant flux F ₁ (λ) of the visible part of the spectrum of color television video signals U _R (t), U _G (t) and U _B (t), the formation in the second the channel of the radiant flux F ₂ (λ) of the visible and near infrared regions of the video spectrum spectrozonal television signals U _Δλ1 (t), U _Δλ2 (t) and U _Δλ3 (t), the formation in the third channel based on the radiant flux F ₃ (λ) of the thermal infrared region of the spectrum of the thermal imaging signals U _Δλ4 (λ) and U _Δλ5 (t ), according to the invention, before generating image signals in the first channel, the radiant flux F ₁ (λ) is further split into three identical streams, in the second channel the radiant flux F ₂ (λ) is further split into three identical streams, and in the third channel the radiant flux F ₃ (λ) are further split into two identical streams, then ka each separate stream is passed through a separate optical filter, while the spectral characteristic of the optical filter for the first channel corresponds to the light flux registration zones in the red (R), green (G) and blue (B) regions of the visible part of the spectrum, for the second channel, the spectral characteristic of the optical filter corresponds to selected areas registering Δλ _1, Δλ ₂ and Δλ ₃ of the radiant flux in the visible and near infrared spectral regions, corresponding to the third channel zone registration Δλ Δλ ₄ and ₅ in a thermal infrared from The spectral spectrum is then separately converted for each radiant flux into an image signal, after which the obtained groups of video signals for the first, second and third channels are amplified, the analog video signals are converted to digital, digital aperture processing of video signals and gamma correction of video signals are carried out, then digital video signals of color television U _R (t), U _G (t) and U _B (t), spectrozonal television U _Δλ1 (t), U _Δλ2 (t) and U _Δλ3 (t) and thermal imaging U _Δλ4 (t) and U _Δλ5 (t) used for joint processing, while they carry out operations of subtracting or summing video signals between themselves, replacing a part of the image of one video signal with a part of the image of another, changing the polarity of the video signals, separating the video signals into low-frequency and high-frequency components, then the original and newly formed video signals are displayed on the screens of video monitoring devices for visual perception of images and automatic analysis.

The method can be carried out in such a way that the spectral characteristics of optical filters are used for the second and third channels for generating image signals due to their mechanical change.

The method can be implemented in such a way that optical filters with a changing spectral characteristic are electronically used for the second and third channels for generating image signals.

The method can be carried out in such a way that the width of the registration zones Δλ ₁ , Δλ ₂ , Δλ ₃ , Δλ ₄ and Δλ ₅ are selected from the conditions of the differential or integral methods for recording the radiant flux to determine the spectral characteristics of optical filters.

In contrast to the known method for generating and displaying color, spectrozonal and thermal imaging images, including the registration of the radiant flux F ′ (λ), within a wide spectral range from λ ₁ to λ _n , its splitting into two radiant fluxes F ₁ (λ) and F ₂ (λ), the projection of the first flux F ₁ (λ) onto the first multisignal converter radiant (light) ’flux-signal’ ’, having mosaic color filters of the RGB type on the surface of its photodetector corresponding to the light flux detection zones in red (R), green ( G) and blue (B) region of the visible (VI) part of the spectrum and convert them into video signals of color television U _R (t), U _G (t) and U _B (t), and the radiant flux F ₂ (λ) is projected onto the second multi-signal transducer ″ radiant flux-signal ″, Having mosaic optical filters with their spectral characteristics on the surface of their photodetector, corresponding to the selected detection zones Δλ ₁ , Δλ ₂ and Δλ _{3 of the} radiant flux in the HI and near infrared spectral regions, are converted in time into video signals of spectrozonal television U _Δλ1 (t), U _Δλ2 (t) and U _Δλ3 (t), in addition, lower the third channel within a wide spectral range from λ ₁ to λ _n , for which the input radiant flux F ′ (λ) is passed through an infrared lens whose spectral characteristic covers the thermal portion of the IR region of the spectrum and form a radiant flux F ₃ (λ), which is projected to the third two-signal converter ″ radiant flux-signal ″ and convert it into video signals U _Δλ4 (t) and U _Δλ5 (t) corresponding to the recording zones Δλ ₄ 3-5 μm and Δλ ₅ 8-12 μm of the thermal section IR ₂ and IR ₃ spectral regions, for which In the first channel, the radiant flux F ₁ (λ) is split further into three identical streams, in the second channel the radiant flux F ₂ (λ) is further split into three identical streams, and in the third channel the radiant flux F ₃ (λ) is further split into two identical streams, then each separate stream is passed through its own optical filter, the spectral characteristic of which for the first channel corresponds to the light flux registration zones in the red (R), green (G) and blue (B) regions of the visible spectrum, for the second th channel corresponds to selected areas registering Δλ _1, Δλ ₂ and Δλ ₃ of the radiant flux in the visible and near infrared spectral regions for the third channel corresponds to zones registration Δλ ₄ and Δλ ₅ in the thermal infrared portion, is then carried out separately transforming each radiant flux into an image signal then the received groups of video signals for the first, second and third channels are amplified, the analog video signals are converted to digital, digital aperture and gamma correction and other types are performed processing of video signals aimed at improving image quality, then digital video signals of color television U _R (t), U _G (t) and U _B (t), spectral television U _Δλ1 (t), U _Δλ2 (t) and U _Δλ3 (t ) and thermal imaging U _Δλ4 (t) and U _Δλ5 (t) are used for their joint processing, for which they carry out the operations of subtracting or adding video signals among themselves, replacing a part of the image of one video signal with a part of the image of another, changing the polarity of the video signals, separating the video signals into low-frequency and high-frequency components and perform other operations related to increasing the information content of the observed images, then the original and newly formed video signals are displayed in parallel or sequentially on the screen of video monitoring devices for visual perception of images, and they also use the generated video signals for automatic analysis of video information.

In this method, the width of the registration zones Δλ ₁ , Δλ ₂ , Δλ ₃ , Δλ ₄ and Δλ ₅ can be selected from the conditions of the differential or integral methods for recording the radiant flux - relatively narrow or wide, respectively, and will be determined by the spectral characteristic of the selected optical filters.

Using the proposed method covers all possible areas of registration of the radiant flux in the spectral range of wavelengths λ ₁ to λ _n and the received information has a higher resolving power in TV images. In this case, video signals of color TV images U _R (t), U _G (t) and U _B (t), spectrozonal TV images U _Δλ1 (t), U _Δλ2 (t) and U _Δλ3 (t) and thermal imaging images U _{Δλ4 are formed} (t) and U _Δλ5 (t).

The combination of two or more images obtained in different parts and zones of the optical spectrum (for example, visible and thermal), allows you to create a resulting image that has a higher resolution for distinguishing and selecting given objects. First of all, various arithmetic operations can be used for this. For example, the operation of subtracting or adding together the amplitude values of the video signals of the entire TV image or certain parts of it, which allow the formation of new images with greater information content compared to individual images.

Further, this can be the operation of inverting video signals and changing the switching of signals to the inputs of the color VKU, using methods for separating the high-frequency and low-frequency components of video signals, segmentation methods, outlines, straight lines, objects of a given shape, dynamic objects, comparing current signals with reference ones, etc. .

Implementation of the proposed method for generating and displaying signals of color, spectrozonal and thermal imaging images is presented in figure 1.

Positions:

1 - lens;

2 - a device for splitting a radiant (light) stream into two identical streams;

3 - a device for splitting a radiant (light) stream into three identical streams;

4 - optical filters (hereinafter - OF);

5 - converters ″ radiant (light) flux-signal ″ (TV sensors);

6 - a sync generator;

7 - block digital signal processing;

8 - block switching digital signals;

9 - block display video information;

10 - block automatic registration of signals with a computing device;

11 - driver control signals;

12 - control unit.

The sync generator 6 generates the necessary horizontal, frame pulses and control pulses of a given duration and frequency, which are used to scan the image in TV sensors, converters of the radiant flux into an electric image signal, for separate and joint digital processing of signals in blocks 7 and 8, as well as in blocks 9, 10, 11 and 12. As TV sensors 5 ₁ 5 ₂ , ... 5 ₈ CCDs or CMOS photodetectors or other converters of radiant flux into an electric image signal with a high resolution can be used solution and operating in the HI, near IR and thermal IR regions of the spectrum.

In the TV system (Fig. 1), the total input radiant flux F ′ (λ), passing through the lens 1 ₁ and the splitting device of the radiant (light) flux 2 _{1, is} divided into two identical streams, the first of which passes through the splitting of the radiant (light) ₁ stream 3 into three identical flow covering the spectral portion of the spectrum in the visible region of 0.38 to 0.76 microns and the output PF _{1 April} formed radiant flux F ₁ (λ), at the output of the OB February ₄ formed radiant flux F ₂ ( λ) and at the output of OF 4 ₃ a radiant flux F ₃ (λ) is formed, corresponding to the registration zones of the light guide about the flux in the red (R), green (G) and blue (B) regions of the VI of the spectral region, after which the radiant flux F ₁ (λ), F ₂ (λ) and F ₃ (λ) convert the block of joint signals into primary color signals processing and switching digital signals using converters of the radiant flux into an electric image signal 5 ₁ , 5 ₂ and 5 ₃ .

At the same time, after the splitting device of the radiant (light) flux 2 _{1, the} second radiant flux passes through the splitting device of the radiant (light) flux 3 ₂ and is divided into three identical fluxes, covering the spectral region in the visible and near IR spectral regions from 0.38 to 2.5 μm, and at the output of OF 4 ₄ a radiant flux F ₄ (λ) is formed, at the output of OF 4 ₅ a radiant flux F ₅ (λ) is formed and at the output of OF 4 _{6 a} radiant flux F ₆ (λ) corresponding to the registration zones radiant flux corresponding to the selected registration zones Δλ ₁ Δλ ₂ and Δλ ₃ of the flow in the VI and near infrared spectral range. After OF 4, the radiant fluxes F (Δλ ₁ ), F (Δλ ₂ ), and F (Δλ ₃ ) are converted using radiant flux converters into an electric image signal 5 ₄ , 5 _5, and 5 ₆ into spectrozonal video signals U _Δλ1 (t), U _Δλ2 (t) and U _Δλ3 (t).

In this scheme (figure 1) there is a third channel for generating image signals in the thermal IR region of the spectrum. For this, the input radiant flux F (λ) is passed through an infrared lens 1 ₂ whose spectral characteristic covers the spectral region in the thermal IR region of the spectrum. The splitting device of the radiant flux 2 ₂ splits the input stream F (λ) into two identical streams, the first of which passes through OF _{4 7} , a radiant flux F ₇ (λ) is formed, at the output of OF 4 ₈ a radiant flux F ₈ (λ) is formed, corresponding to the recording zones Δλ ₄ (3-5 μm) and Δλ ₅ (8-12 μm) of the thermal IR spectral region.

After performing the above operations on the signals, all the generated video signals are converted to digital form in the unit for separate digital processing of signals of color, spectrozonal and thermal images 7. In this block, the pre-amplification of analog signals takes place, their conversion to digital form with the formation of binary signals in a multi-bit code . Digital correction of signals (gamma correction, aperture correction) and other types of digital processing of video signals are carried out.

From the output of block 7, the video signals arrive at the joint digital processing and switching block of signals 8, from the output of which video signals arrive at the inputs of blocks 9 and 10.

Block 12 receives control signals to the inputs of blocks 7, 8, 9, and 10. They specify an algorithm for separate and joint processing of digital video signals for a group of signals of television, spectrozonal, and thermal imaging channels, as well as various options for supplying initial and newly formed video signals to the inputs of the display unit video information, which may include one or more color video monitoring devices (VKU). In addition, video signals are also fed to the input of the automatic signal recording unit with the computing device 10. The generated signals from the output of the unit 10 are fed to the driver of control signals 11, from the output of which the signals can be supplied to the actuator. The presence of block 10 allows you to solve problems associated with the automatic detection and recognition of objects in the field of view of a TV system, endowed with certain spectral-energy and spatial signs, to calculate their parameters, etc.

A distinctive feature of this method compared to the analogue [8] is that the optical filters 4 and their spectral characteristics in the second and third channels can, if necessary, be changed mechanically or electronically. Such an operation will improve the reliability of selection and distinguishing of objects according to spectral-energy characteristics and improve the information content of observing objects through the use of other zones (sections) of the optical spectrum.

In the block for joint processing and switching of digital signals 8, various operations on video signals can be used. Let's consider some of them. So, for example, based on the primary color video signals U _R (t), U _G (t) and U _B (t), in accordance with the known expression, a luminance image signal characterizing a black-and-white television signal can be generated:

_Spectrozonal video signals U _Δλ1 (t), U _Δλ2 (t) and U _Δλ3 (t) can be supplied to the RGB inputs of the color VKU in different sequences and polarity. At the same time, for each variant of the adopted combination of zonal video signals, 8 variants of their supply with inversion of video signals are obtained. In total, it turns out that the spectrozonal image of the three registration zones can be displayed in N = 6 · 8 = 48 variants of color spectrozonal images, each of which displays objects in its own combination of colors along the image field.

When displaying spectrozonal TV images for visual analysis, you can always choose such color combinations for objects of some of their sets that will allow for reliable separation and selection of objects of a given class against the background of other objects. On the other hand, the available choice of the option for switching zonal video signals and their inversion allows expanding the options for displaying video information in arbitrary colors for selection and analysis of certain classes of objects.

Based on the TV images of the observed objects in block 10, various parameters of the objects can be determined - size, range, speed, coordinates, yaw and pitch angles, etc. [four].

Information sources

1. Textbook for universities / V.E. Dzhakonia, A.A. Gogol, Y.V. Drusin et al .: Ed. V.E. Dzhakonia. - M .: Radio and communications, 2000 .-- 640 p .: ill.

2. Nikitin V.V., Tsytsulin A.K. Television in Physical Protection Systems: A Training Manual. - SPb., Publishing house of SPbSTEU ″ LETI ″, 2001. - 135 p.

3. Zubarev Yu.B., Sagdullaev Yu.S. Spectral selection of optical images. Tashkent: Fan, 1987 .-- 108 p.

4. Zubarev Yu.B., Sagdullaev Yu.S., Sagdullaev T.Yu. Video information technology communication systems. M .: Publishing house ″ Sputnik + ″, 2011. - 296 p.

5. Aleev P.M. Non-scanning thermal imaging devices / R.M. Aleev, V.P. Ivanov, V.A. Ovsyannikov. - Kazan: Publishing house of Kaz. Univ., 2004 .-- 228 p.

6. RF patent No. 2374783, IPC H04N 7/18 // ed. Vilkova N.N., Zubarev Yu.B., Sagdullaev Yu.S., publ. November 27, 2009

7. Smirnov A.V. The Basics of Digital Television: A Study Guide. - M .: Hot line - Telecom, 2001 .-- 224 p.: Ill.

8. The method of forming and displaying signals of color, spectrozonal and thermal imaging images / Kovin SD, Sagdullaev Yu.S. Application No. 2013124348 of 05/28/2013

Claims (4)

1. A method of generating TV image signals of different parts of the spectrum, including recording the input radiant flux F (λ) within a wide spectral range from λ ₁ to λ _n , the formation of three separate radiant fluxes F ₁ (λ), F ₂ (λ) and F ₃ (λ), the formation in the first channel on the basis of the radiant flux F ₁ (λ) of the visible part of the spectrum of color television video signals U _R (t), U _G (t) and U _B (t), the formation in the second channel on the basis of the radiant stream F ₂ (λ) of the visible and near infrared spectral regions video spectrozonal Televid I _{U Δλ1 (t), U Δλ2} (t) and U _Δλ3 (t), forming a third channel based on the light flux F ₃ (λ) of thermal infrared thermovision video spectrum U _Δλ4 (t) and U _Δλ5 (t), characterized in that before the formation of the image signals in the first channel, the radiant flux F ₁ (λ) is further split into three identical streams, in the second channel the radiant flux F ₂ (λ) is further split into three identical streams, and in the third channel the radiant flux F ₃ (λ) are further split into two identical streams, then each individual stream is passed through with an optical filter whose spectral characteristic for the first channel corresponds to the light flux registration zones in the red (R), green (G) and blue (B) regions of the visible spectrum, for the second channel corresponds to the selected recording zones Δλ ₁ , Δλ ₂ and Δλ ₃ radiant flux in the visible and near infrared regions of the spectrum, for the third channel corresponds to the recording zones Δλ ₄ and Δλ ₅ in the thermal infrared portion of the spectrum, then each radiation is converted separately into an image signal, after For this, the obtained groups of video signals for the first, second, and third channels are amplified, the analog video signals are converted to digital, digital aperture and gamma correction and other types of video processing are performed to improve image quality, then digital video signals of color television U _R (t), U _G (t) and U _B (t), spectrozonal television U _Δλ1 (t), U _Δλ2 (t) and U _Δλ3 (t) and thermal imaging U _Δλ4 (t) and U _Δλ5 (t) are used for their joint processing, why carry out operations of subtraction or summation of video signals among themselves, replacing a part of the image of one video signal with a part of the image of another, changing the polarity of the video signals, separating the video signals into low-frequency and high-frequency components and perform other operations related to increasing the information content of the observed images, then the original and newly generated video signals are displayed in parallel or sequentially on the screen of video monitoring devices for visual perception of images, and also use the generated video signals for automatic analysis Lisa video information. 2. The method of generating signals of TV images of different parts of the spectrum according to claim 1, characterized in that for the second and third channels for generating image signals, the spectral characteristics of the used optical filters can be changed by mechanically changing them. 3. The method of generating signals of TV images of various parts of the spectrum according to claim 1, characterized in that for the second and third channels for generating image signals, constant optical filters with a changing spectral characteristic electronically can be used. 4. The method of generating signals of TV images of different parts of the spectrum according to claim 1, characterized in that the width of the registration zones Δλ ₁ , Δλ ₂ , Δλ ₃ , Δλ ₄ and Δλ ₅ can be selected from the conditions of the differential or integral methods of recording the radiant flux - relatively narrow or wide, respectively, and will be determined by the spectral characteristic of the selected optical filters.