OBJECTIVE To evaluate the variability of three-dimensional automatic counts of ovarian follicles measuring 2-6 to 2-10 mm during the menstrual cycle and to determine if this test can be applied outside the early follicular phase of the menstrual cycle. METHODS in a prospective observational study, serial transvaginal ultrasound scans were performed from April 20, 2013, to October 30, 2014, on...

HEVC (MPEG-H Part 2 and H.265) is a new coding technology which is expected to be deployed on the market along with new video services in the near future. HEVC is a successor of currently widely used AVC (MPEG-4 Part 10 and H.264). In this paper, the quality coding gains obtained for the Cascaded Pixel Domain Transcoder of AVC-coded material to HEVC standard are reported. Extensive experiments ...

T he H.264/MPEG-4 Advanced Video Coding standard (H.264/AVC) is the newest video coding standard jointly developed by the ITU-T Video Coding Experts Group (VCEG) and the ISO/IEC Moving Picture Experts Group (MPEG). H.264/AVC has achieved a significant improvement in compression performance compared to prior standards, and it provides a network-friendly representation of the video that addresses...

In H.264/AVC standard, the intra-frame prediction scheme is employed for better coding efficiency. Using the already encoded adjacent upper and left pixels, the intra prediction is performed. In this paper, we present an improved intra prediction scheme of H.264/AVC. By taking into account the error of the adjacent bottom and right pixels in intra mode decision, our scheme shows better results ...

BACKGROUND Sclerostin is a Wnt pathway antagonist regulating osteoblast activity and bone turnover. Here, we assessed the potential association of sclerostin with the development of coronary artery (CAC) and aortic valve calcifications (AVC) in haemodialysis (HD) patients. METHODS We conducted a cross-sectional multi-slice computed tomography (MS-CT) scanning study in 67 chronic HD patients (...

Received Aug 2, 2013 Revised Oct 14, 2013 Accepted Oct 28, 2013 The H.264/AVC standard achieves remarkable higher compression performance than the previous MPEG and H.26X standards. One of the computationally intensive units in the MPEG and H.26X video coding families is the Discrete Cosine Transform (DCT). In this paper, we propose an efficient implementation of the DCT, inverse DCTs and the H...

The H.264/AVC coding standard only specifies the decoding process and the bitstream syntax to allow considerable flexibility for the designers to optimize the encoder for coding performance improvement and complexity reduction. This paper proposes the use of redundant Predicted (Marionette) frames to prevent temporal error propagation in H.264/AVC streaming over error prone wireless channels. C...

H.264/AVC is a hybrid predictive-transform coder. In this paper we propose a more computational efficient approach to implement the prediction module, its most complex stage. The idea is to employ a subset of dominant prediction modes instead of testing all modes recommended by H.264/AVC standard. Results show that, for high definition sequences, the quality loss is negligible allowing us to co...

Advance Video Coding (AVC) has employed a 6-tap interpolation FIR filter in its motion compensation (MC) part for high coding efficiency. But it is accompanied by increasing the complexity in calculation and the number of memory access. And this problem makes MC one of the bottlenecks in the AVC system’s VLSI implementation, especially for SDTV/HDTV which aggravate the problem heavily. Unfortun...