Results 11 to 20 of about 38,586 (315)
Motion Compensation on DCT Domain [PDF]
EURASIP Journal on Advances in Signal Processing, 2001 Summary: Alternative fully DCT-based video codec architectures have been proposed in the past to address the shortcomings of the conventional hybrid motion compensated DCT video codec structures traditionally chosen as the basis of implementation of standard-compliant codecs.
Liu KJ Ray, Koc Ut-Va
openaire +3 more sources
Image Watermarking Using DWT_DCT [PDF]
Engineering and Technology Journal, 2010 Digital watermarking has been developed to protect digital images fromillegal manipulation. Discrete wavelet Transform (DWT) and Discrete Cosine Transform (DCT) are techniques used for digital watermarking.
Bassim Abdulbaki Jumaa, Arwa Aladdin
doaj +1 more source
RECURSIVE HIERARCHICAL CLUSTERING FOR HYPERSPECTRAL IMAGES [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 Partition based clustering techniques are widely used in data mining and also to analyze hyperspectral images. Unsupervised clustering only depends on data, without any external knowledge.
S. May
doaj +1 more source
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2021 The hardware implementations of fixed-point DCT blocks, known as IntDCT [1] and BinDCT [2], require some solutions. One of the main issues is the choice between the implementation of the conversion on FPGA, or the implementation on a digital signal ...
V. V. Kliuchenia
doaj +1 more source
A new watermarking scheme for digital videos using DCT
Open Computer Science, 2022 With the advent of high-speed broadband Internet access, the need to protect digital videos is highly recommended. The main objective of this study is to propose an adaptive algorithm for watermarked digital videos in the frequency domain based on ...
Al-Gindy Ahmed +5 more
doaj +1 more source
IoT based intelligent irrigation support system for smart farming applications
Advances in Distributed Computing and Artificial Intelligence Journal, 2020 India is an agricultural country with an ample amount of arable land that produces wide variety of crops. Growing population and urbanization puts up challenges: more and quality yield in limited area, effective utilization of water resources ...
Neha Kailash NAWANDAR, Vishal SATPUTE
doaj +1 more source
A Low-Cost Multi-Sized HEVC Core Transform Using Time-Multiplexed DCT Architectures [PDF]
Journal of Operation and Automation in Power Engineering, 2022 High Efficiency Video Coding (HEVC) is one of the latest coding standards targeting high-resolution video contents. Due to the high complexity of the existing hardware implementation, this paper presents the low-cost and efficient DCT architectures for ...
R. Younesi, J. Rastegar, M. Rastgarpour
doaj +1 more source
Fast 2D-DCT implementations for VLIW processors [PDF]
, 1999 This paper analyzes various fast 2D-DCT algorithms regarding their suitability for VLIW processors. Operations for truncation or rounding which are usually neglected in proposals for fast algorithms have also been taken into consideration.
C.N. Canagarajah +5 more
core +1 more source
Reducing Dimensions of the Feature Vector of an Image Based on Blocking-DCT
, 2021 Two approach for dimension reduction of a DCT block of an image to extracting features are ...
Farah Torkamani Azar (11308815)
core +1 more source
DCT-OFDM With Index Modulation [PDF]
IEEE Communications Letters, 2017 In this letter, index modulation (IM) is proposed for OFDM systems based on a discrete cosine transform (DCT) implementation. The new DCT-OFDM-IM scheme is shown to yield spectral efficiency improvements of up to 38% relative to OFDM-IM and up to 55% relative to OFDM while occupying the same bandwidth and maintaining similar robustness against the ...
Chafii, Marwa +2 more
openaire +3 more sources