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4.5 Analysis of productivity and fast operations of the device of compression of the image

The analysis of productivity of the developed device of compression izobrazheyonija real time is spent taking into account time responses of separate elements of the offered device according to a series of microcircuits TTL 1533 [51-53].

The table of time delays of elements of a series 1533 priveyodena in table 4.1.

On the basis of table 4.1 and drawings 4 we will make tables and schedules of dependence of an operating time of each of blocks and the device as a whole from razreyoshenija an initial shot.

Table 4.1 - Time delays of elements of a series 1533

Element type Detention period, nanosecond
I-NOT 8
AND 11
OR 12
The register 21
The comparator 31

In drawing 4.10 dependence of processing time of the image by the block of a roughing-out from the shot permission is presented. Design data priveyodeny in table 4.2.

Table 4.2. The Estimated time of machining of the image the block of a roughing-out from the shot permission

The shot permission 480р (854х480) 720р (1280х720) 1080р (1920х1080)
Processing time 0,0172 with. 0,0387 with. 0,087 with.

Drawing 4.10 - Dependence of processing time of the image the block pervich -

Ache machining from the shot permission

In drawing 4.11 dependence of processing time izobrazheyonija by the block of compression by method Haffmana from the shot permission is presented. Design data are resulted in table 4.3.

Table 4.3. The Estimated time of machining of the image the compression block meyo

todom Haffmana from the shot permission

The shot permission 480р (854х480) 720р (1280х720) 1080р (1920х1080)
Processing time 0,0307 with. 0,0691 with. 0,155 with.

Drawing 4.11 - Dependence of processing time of the image the block of compression by method Haffmana from the shot permission

Design data of processing time of the image from the shot permission are resulted by the device of compression in table 4.4

From the shot permission

The shot permission 480р (854х480) 720р (1280х720) 1080р (1920х1080)
Processing time 0,0479 with. 0,1078 with. 0,242 with.

For optimisation of time delays in the circuit design, repeating eleyomenty blocks the functional diagramme realising a full cycle of compression is merged and developed.

The developed circuit design is presented in drawing 4.12. RasYOchetnye data for the given circuit design are resulted in table 4.5.

Drawing 4.12 - the Optimized functional diagramme of the device of compression

Table 4.5 - Dependence of processing time of a shot optimised

The device of compression from the shot permission

The shot permission 480р (854х480) 720р (1280х720) 1080р (1920х1080)
Processing time 0,0125 with. 0,0281 with. 0,0632 with.

Drawing 4.13 - Dependence of processing time of the image is optimised -

nym the device of compression from the shot permission

From the data resulted in the table follows, that the offered device does not allow to constrict in a real time the format image 1080р.

For decrease of time expenses it is offered to use dublirovayonie devices with work in phase opposition clock pulse. The alternative dublirovayonija is represented in drawing 4.14. Time responses of machining of a shot are resulted by the cascade of devices of compression of the image in table 4.6.

In drawing 4.15 dependence of processing time izobrazheyonija by the doubled device from the shot permission is presented.

Drawing 4.14 - Alternative of duplicating of the device

Drawing 4.15 - Dependence of processing time of the image the cascade opti -

mizirovannyh devices of compression from the shot permission

Table 4.6. Time responses of machining of a shot the doubled device

The shot permission 480р (854х480) 720р (1280х720) 1080р (1920х1080)
Processing time 0,0063 with. 0,015 with. 0,033 with.
proizvoditelyonost 160 fps 71 fps 31 fps

On the data resulted in drawing 4.15 and in table 4.6, it is possible to draw a leading-out, that the cascade of two devices of compression of the image it is enough for obrayobotki in a real time of shots a size to 1920х1080 pixels.

Also the comparative analysis of time expenses has been carried out at appayoratnoj implementation with the analogous device. Results of comparison vreyomeni image compression are presented in table 4.7

Table 4.7. Comparative characteristics of compression of a shot

The shot permission 480р (854х480) 720р (1280х720) 1080р (1920х1080)
Time (about izvoditelnost) Compression
Analogue 0,04 with. (25 fps) 0,04 with. (25 fps) 0,04 with. (25 fps)
Developed ustrojyostvo 0,0063 with. (160 fps) 0,015 with. (71 fps) 0,033 with. (31 fps)

From table 4.7 follows, that at a compression hardware representation izobrayozhenija the developed method requires from 0.0063 to 0,033с, depending on a shot size that allows to raise efficiency of operations of compression to 6 times in comparison with the device-analogue, by increase proizvodiyotelnosti.

Thus, the purpose of dissertational research in a part povysheyonija efficiency of performance of operations of compression of the image is attained.

4.4

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A source: Guljaev Cyril Alekseevich. the Method, algorithms and devices of compression and restoration of images at the remote control of critical computer systems. The dissertation on competition of a scientific degree of a Cand.Tech.Sci. Kursk - 2018. 2018

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  2. 3.2 Estimation of complexity and fast operations of the device of correction of errors in an optical computer memory
  3. the Estimation of apparatus complexity of the device of compression of the image
  4. the Structural organisation of the device of compression of the image real time
  5. the Functional organisation of the device of compression of the image in reyozhime a real time
  6. Algorithms of functioning of mainframes of the device of compression of the image
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  8. the Generalized algorithm of compression of the image of RGB-model real time
  9. the Estimation of apparatus complexity of the device of compression and restoration of images
  10. Principles of a hardware representation of procedure of compression of the image real time
  11. the Establishment of laws of change of productivity from device key parametres
  12. WORKING OUT STRUCTURAL AND THE FUNCTIONAL DIAGRAM OF DEVICES OF COMPRESSION AND IMAGE RESTORATION
  13. the Functional organisation of the device of restoration of the image real time
  14. the Structural organisation of the device of restoration of the image real time
  15. the Analysis of methods and devices of compression of images in critical computer systems
  16. results of the analysis of researches of dependence of an ultimate strength on compression of samples, from installation key parametres
  17. THE ANALYSIS OF EXISTING METHODS AND DEVICES OF COMPRESSION OF IMAGES AT THE REMOTE CONTROL OF CRITICAL COMPUTER SYSTEMS
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