Although the adaptive deblocking filter of H.264/AVC efficiently reduces blocking artifacts for most images, it is limited in removing the blocking artifacts of the directional edge on the block boundaries. In order to solve this problem, we propose a directional deblocking filter based on intra prediction direction. The proposed algorithm performs directional filtering according to the directi...

Today’s superscalar processors use branch prediction to reduce the influence of control hazards. Conventional two-level branch predictors make predictions based on either intra-branch correlation or inter-branch correlation. In the paper, the authors proposed two new branch predictors, called PGXg and PGAg, which make predictions by employing both intra-branch correlation and inter-branch corre...

Draft 2 of 3D-HEVC Test Model Description Ed. Notes (WD2) (based on JCT3V-A1005)  Accepted changes and marked delta to base spec  (3DC-GT2) Editorial improvements, small corrections  (3DC-CY) Editorial improvements, small corrections  (MVS-02/JCT3V-B0046) Treatment of inter-view pictures as long termreference pictures  (3DE-11) Revised text related to 3Dn-01  (3Dn-01/m23639) Results on mo...

In this paper, a lossy partition coding technique is presented which leads to decoded partitions with unnoticeable losses. It uses an hexagonal grid for contour representation and it is based on the concept of Multi-Grid Chain Code. This coding technique can be used in intra-frame mode or, in combination with partition prediction techniques, in inter-frame mode. In intra-frame mode, it leads to...

In this paper we talk about mixed architectures of a H.264/AVC video decoder. Here software part of decoder was implemented in NIOS II processor on a FPGA prototyping board (Stratix III). Software and hardware architectures was proposed to increase the decoder output performance. Based upon the time execution parameters, data dependency constraints, the decoder partitioning is applied. Here the...

501 Abstract—In the H.264/ AVC video coding standard, the intra-prediction coding with various block sizes offers a considerably high improvement in coding efficiency compared to previous standards. In order to achieve this, H.264/AVC uses the Rate-distortion optimization (RDO) technique to select the best intra-prediction mode for a macroblock, and it brings about the drastic increase of the c...

A simple, highly efficient intra prediction algorithm to reduce the computational complexity of H.264/AVC High Profile is proposed. The algorithm combines two methods. The first method is a quant-based block-size selection decision that is based on the sum of the quantization AC coefficients among intra 8 × 8 mode predictions, combined with an error adjustment to select either intra 4 × 4 or in...

5 Introduction Background 6 Comparison of predictive ability between modelling techniques 9 ‘False’ Absences 11 Study area 11 The harbour porpoise (Phocoena phocoena) 12 Materials and Methods Data collection 13 Estimating position of sightings 14 Track and surveyed grid cells 14 Presence and Absence cells 15 Data partitioning 16 Ecogeographic data 16 1) PCA-based technique 17 PCA-intra-model ev...