SU717707A1 - Thermal method of obtaining images - Google Patents

Description

  I The invention relates to snobs of obtaining images with the aid of electronic, thermal and electronic fluxes, as well as to special methods of shooting. Photographic methods of obtaining images are known, namely, that the image is recorded and fixed on a photographic film and then projected onto the screen, illuminating the recorded image with a bright source l., A disadvantage of the known methods | is that the image is not obtained in real time, as long-term chemical-photographic processing is required. Thermal methods for obtaining images are known, concluded that the object is recorded onto a heterogeneous medium with the possibility of its aggregate transformations. A disadvantage of the known methods is the impossibility of simultaneously transmitting an image enhanced in luminance in real time. For the purpose of simultaneous transmission of the enhanced through pk6b image in real time by the proposed method, place a light source near the image; when recording an object and transmitting an image and: by irradiation of a single wavelength, the exposure is chosen from the condition:, where E, is the minimum illumination. when recording; , 2. illumination from the source recording time; illumination time;: the recording object and the image transmission are carried out by radiation of different wavelengths. This is done as follows. Radiation from the object is projected onto the medium, creating inhomogeneous illumination on it. In this case, an image is recorded on a reversible medium under the condition of its aggregative state. - five .

3.,

rfa is a substance with an energy that regulates the chaotis transformations. When aanncif the medium is heated, it absorbs light from the image. After the medium is heated to the temperature of the aggregate conversion, its optical density is changed due to the mixing of opaque particles, which is fixed during cooling of the medium, causing its reverse aggregate transformation. Then the recorded image is projected onto any nJfiyfyK) plane, illuminating it with a light source that creates illumination more than the illumination when recording the image. At the same time, the image is amplified, transferred from the recording plane to any TfpST i ibWee & ircilK. If the recording of images and its design is carried out by radiation at the same wavelength, then the design exposure is chosen to be lower than during recording. The same npeffotBHere Hajbytiiemte of the recorded image. If recording and design is produced by radiation at different wavelengths,

11yr time less absorbs yapuche-. from the source of light 7 than from the yobrah

ZHYY; gty eGsp6ZhNy y: nd y p i choose more than when recording.

The total recording of fixations on the image on the medium is 1O with 2, so using it allows you to transfer enhanced real-time T13frame

IpeKfeftir .----; - -

. with .siri, - 3: i - J A.:iilC it "i rf ------..-, -...--- - i ....... i .., - .-., ..

It is quite significant; WHAT while recording the images and their transfer can riepeiaaHbi not only the appearance, but also the color of the object. For this purpose, a spatially inhomogeneous light filter is attached to the recording medium.

Work on the method is carried out in the following way. The image is recorded on medium. Heating medium occurred. Dates when light is absorbed from an image. Afterwards, the ambient temperature up to the temperature of the aggregate transformation of the optical density i2LPJ Ji§SL1 ® due to the displacement of the opaque parts of tttz, which fies is controlled during the cooling of the medium / the reverse aggregate transformation. Then the recorded image is illuminated with a strong ibt6 cht1k6m light. In this case, an image is obtained in luminance, behind the plane in which the recording medium is located, if the light passed through the medium is used, or the plane in which 707 is used: --v - - 4

The medium is located for recording if the light reflected from the medium is used. In the enhanced image, the contrast, half tones and colors are preserved in the original image.

With measure 1, the image varying with time with the maximum ratio of the vibrations of the elements 30, it is necessary to transmit them over a large distance by means of a fiber or a laser beam. Due to the spreading of the scientific research institute of light carrying the specified image, the brightness of the image decreases monotonically with an increase in the level of 1x. The problem of attenuation is solved by the method of the invention.

To accomplish this, on the way the propagation of 1 Ш света света light will prevent delusions for recording and recording, the source of a power 20 L and a bright source of light - a luminance amplifier. Recorded on Wednesday, the imagery is illuminated for a short time by the light source. At the same time receive the image, strengthened by luminance, in other 25 planes.

Distance from location

the original image to the point where the luminance amplifier is turned on is chosen such that the luminance of the darkest, elements of the image remains higher than possible luminance fluctuations and above the sensitivity threshold of the recording medium; at the same time, the image is recorded on the medium for recording / recording of significant distortion of contrast, halftones and color in a matter of seconds. / After the image is recorded on the medium, it is illuminated, including a bright light source at time t, providing uniform illumination of the image. 40 .---; ; /, ..; ....,

The time is chosen from two considerations: first, that the exposures from the additional source do not exceed the exposure from the transmitted image,

 there is a condition to be met - 1 minimal illumination of the recording; E is the occurence of light from the institute of light, {is the recording time; t ,, is the illumination time.

50 Secondly, in order to exceed the inertia time of the image receiver, in particular, the eyes, that is, the condition t tQ, where the inertia time of the receiver, is satisfied. -,

55 g in this case, the illumination by the additional source does not spoil the recorded image, and the magnification factor of the image is equal to

 71

When including g; n; before the high-speed IP-, / -point the image is transferred from the recording plane to the Speed of light R any other plane. Such a process is similar to the process of amplifying an electrical signal in a radio line or a transistor. The enhanced image can be transferred to the end of the fiber and transferred further along this Segment.

After transferring the enhanced image to another plane, it is erased from the medium in about 10 seconds, preparing the medium for recording a new frame. h

The write and erase cycle must be synchronized with the transfer cycle.

In this way, when working by the proposed method, the luminance of the menus of images in real time is provided without changing the contrast, midtones and colors of the original image.

It is known that when transmitting images through a fiber, along with attenuation of light, there is also a distortion of a large number of mode lines due to dispersion. However, the latter can be compensated for in a known manner by using a correction filter in the form of a plate on which the pines are applied, performing a reverse image convolution operation. The view of the correction filter, that is, the shape of the lines, is obtained by the known dispersion characteristic of the light path.

Therefore, if it is required not only to make the transfer of enhanced image strength, but also to correct the distortion that occurred during transmission, then, additionally, after the recording medium, a plate with a corrective filter is inserted.

Example 2. The luminance of time-varying images is produced in real scale in the same way; as in example 1, the image enhanced in brightness is projected onto the screen with an increase in image size for visual observation.

This makes it possible to carry out: television transmission and reception of images that vary in time, which do not require the conversion of light images into a trace of electrocution (acoustic signals and vice versa;

6

Reception and the subsequent processing by optical methods of images, menyuhs during the time at all;

transfer and reception on the big screen of images of small objects observed through an Opttic microscope;

transmission and reception of images of distant objects enhanced by bright TIT, nab. Chores of the telescope (binoculars, astronomical telescope, etc.).

Lamper 3, The luminance of time-varying images is produced in the same way as in Example 1, and the enhanced image is projected onto the screen through a multiplier device, for example through a diffraction grating. In this case, repeatedly (in different places) on the screen will be reproduced, the original image. If the screen is pre-recorded

images of various objects, then, using the well-known correlation comparison method, carry out recognition of still images, i.e., establish the fact that the transmitted image coincides with one of the images recorded on the screen.

In this way, it is possible to implement, for example, the switching of telephone channels formed by optical fibers, without the use of mechanical step finders ...

; Example 4 The luminance of time-varying images is produced in the same way as KiaK in Example 1, but instead of an image of an object, its hologram is transmitted.

In this case, the reinforced hologram is transformed using a known method of restoring holograms into a three-dimensional image.

Thus, o6pia3OM, the inventive method can be used:

for real-time transmission over the body (including color) of images that change in time, without converting light images into a sequence of electrical signals;

for automatic optical processing of information coming in

- images on the video screen;

For transmission and reception on a large

Claims (3)

a screen of high-intensity images of small (microscopic) and distant (observed through binoculars, astro-telescope) objects; dp the implementation of the commutation of the telephone channels by means of the busting of the mechanical SHEIG seekers; for the implementation of holographic southerly and television broadcasts. The formula is invented by the 1.Thermal method of obtaining images, which consists in the fact that the object saifticiiBaibt on à £ b | e6genshguyu environment d the possibility of its aggregate perceptions, that Jl 5 „T® that, with the aim of simultaneous real-time image brightness, a light source is placed next to the image. , 2. Method according to claim 1, in terms of the fact that when recording an object and transmitting an image with radiation of one wavelength, the exposure is chosen from the condition: minimum illumination during recording, illumination from the source, recording time, illumination time. 3. The method according to claim 1, in accordance with the claim that the object is recorded and the image is transmitted by radiation of different wavelengths. Sources of information taken into account in the examination 1. K. B. Neblit. Photographs, its materials and processes, M., 1958. 2, USSR Author's Certificate in Application No. 24629О2, cl. 6 03 G 5 / OO, 1977 (prototype).