Bitstream-Based JPEG Image Encryption with File-Size Preserving

Kobayashi, Hiroyuki; Kiya, Hitoshi

doi:10.1109/gcce.2018.8574605

Cited by 28 publications

(40 citation statements)

References 14 publications

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“…З іншого боку, під час кризових ситуацій, навпаки, різко зростає попит на використання відеоінформаційних сервісів для передавання та обміну інформацією [4][5][6][7][8]. Звідси виникає істотний дисбаланс між інформаційним навантаженням інфокомунікаційної мережі та її пропускною здатністю.…”

Section: вступunclassified

Concept Functional Transformations for Formation of Syntactic Description Diagonals Transformant

Barannik,

Shulgin,

Ignatyev

et al. 2023

ICTEE

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The article justifies the existence an imbalance in the provision of video information services using infocommunication networks. It is shown that such an imbalance is due to the destructive actions of the opposing side. Many these attacks relate to the disabling of energy and telecommunications infrastructure. This leads to a significant drop in the bandwidth of the infocommunication network. Accordingly, it is necessary to localize the imbalance between the information load infocommunication network and its bandwidth in the face of crisis factors. To do this, you must use an integrated approach. The article discusses in detail the direction creating technologies for additional reduction of bit load without losing the semantic integrity of video information resources. However, for such technologies in the process of reducing the information load of the network, there is a contradiction. On the one hand, a reduction in the information load of the network is achieved. But on the other hand, there are losses in the integrity video information. So you need to create a new class of encoding methods. Accordingly, to build compression coding technologies, it is necessary to develop an approach concept. A theoretical basis has been created for constructing the technology of encoding transformants in an uneven diagonal format, taking into account its combinatorial configuration. It is based on a system of transformations that is outlined as a two-layer compressive encoding transformer in an uneven-diagonal spectral space.

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Section: вступunclassified

Concept Functional Transformations for Formation of Syntactic Description Diagonals Transformant

Barannik,

Shulgin,

Ignatyev

et al. 2023

ICTEE

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“…Темпи зростання обсягів відеоінформаційних ресурсів на кілька порядків перевищують можливості інфокомунікаційних технологій щодо їх продуктивності. Тому важливим науково-технічним напрямком є вдосконалення цифрової обробки відеозображень [1][2][3][4]. Означений дисбаланс стає більш виразним у випадку передачі відеоінформаційного потоку з використанням бездротових інфокомунікаційних технологій.…”

Section: вступunclassified

Dynamic Encoding of the Transformer Video Images With Refinement of the Base System

Barannik¹,

Shulgin²,

Barannik³

et al. 2022

ICTEE

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This article creates a method of dynamic encodiofng the sequence of video segments based on the adaptive update of the system fundamentals the structural positional basis. In this case, the processing of part of the components is carried out in one pass. It is shown that it is necessary to take into account new patterns that are inherent in the sequence of transformed segments. It is argued that the elimination of structural redundancy creates the conditions for additional reduction in the bit volume. It is substantiated that the increase in the volume of digital representation compressed video image by an amount equal to the number of digits spent on the marker matrix is compensated by a decrease in the number of digits for the presentation of the code and a reduction in the number bases used to form it. The practical significance lies in the fact that the technology created in relation to the method, which is implemented in the formats of the JPEG and JPEG2000 families, allows you to further increase the compression ratio of realistic video images without making an error and reduce the time for their processing.

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“…In the JPEG technology, privacy functionality is only being developed [15][16][17]. It is focused on scrambling of DCT coefficients [17][18][19] and processing at the packet level [20][21][22]. Additionally, alternative schemes are also offered.…”

Section: Introductionmentioning

confidence: 99%

Video images compression method based on floating positional coding with an unequal codograms length

Бараннік

Sidchenko²,

Barannik³

et al. 2023

reks

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The subject of research in the article are the video images compression and encryption processes during the critically important objects managing process. The goal is to develop a method for compressing video images based on floating positional coding with an uneven codegrams length to simultaneously ensure information reliability and confidentiality during its transmission with a given time delay. Objectives: analyzing existing approaches to ensuring the video images confidentiality; development a method for compressing video images based on floating positional coding with an uneven codegrams length; evaluate the developed method effectiveness. The methods used are: digital image processing methods, digital image compression methods, image encryption and scrambling methods, structural-combinatorial coding methods, statistical analysis methods. The following results are obtained. The technology of floating encoding of an uneven sequence of blocks is proposed. Code values are formed from elements of different video image blocks. For this, a scheme for linearizing an image point coordinates from its four-dimensional representation on a plane into a one-dimensional element coordinate in a vector has been developed. The four-dimensional element coordinate on the plane describes the image block coordinates and the coordinates of the element in this block. Code values are formed under conditions of control their binary representation's length. At the same time, coding is implemented for an indeterminate number of video image elements. The number of elements depends on the length of the code word. Accordingly, codegrams with an indeterminate length are formed. Their length depends on the service data values, generated during the encoding process. Service data acts as a key element. Conclusions. The one-stage polyadic image encoding method in a differentiated basis has been further improved. The developed encoding method provides image compression without information quality loss. The original images volume compression provides by 3–20 % better compared to the TIFF data presentation format and by 4–15 % compared to the PNG format. The overhead amount is less than 2.5 % of the entire codestream size.

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Bitstream-Based JPEG Image Encryption with File-Size Preserving

Cited by 28 publications

References 14 publications

Concept Functional Transformations for Formation of Syntactic Description Diagonals Transformant

Concept Functional Transformations for Formation of Syntactic Description Diagonals Transformant

Dynamic Encoding of the Transformer Video Images With Refinement of the Base System

Video images compression method based on floating positional coding with an unequal codograms length

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