Search Results - "Ka-Ho Ng"

Rhodium(III)-Catalyzed Intermolecular Direct Amination of Aromatic C–H Bonds with N-Chloroamines by Ng, Ka-Ho, Zhou, Zhongyuan, Yu, Wing-Yiu

“…A Rh(III)-catalyzed direct aromatic C–H amination is achieved using N-chloroamines as a reagent. Furthermore, we also developed a one-pot amination protocol…”
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Pd-Catalyzed Intermolecular ortho-C−H Amidation of Anilides by N-Nosyloxycarbamate by Ng, Ka-Ho, Chan, Albert S. C, Yu, Wing-Yiu

“…A palladium-catalyzed ortho-C−H amidation of anilides by N-nosyloxycarbamates was developed for the synthesis of 2-aminoanilines. This reaction can be carried…”
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Novel Directional Gradient Descent Searches for Fast Block Motion Estimation by Lai-Man Po, Ka-Ho Ng, Kwok-Wai Cheung, Ka-Man Wong, Uddin, Y., Chi-Wang Ting

“…Search point pattern-based fast block motion estimation algorithms provide significant speedup for motion estimation but usually suffer from being easily…”
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Subsampled Block-Matching for Zoom Motion Compensated Prediction by PO, Lai-Man, WONG, Ka-Man, CHEUNG, Kwok-Wai, NG, Ka-Ho

“…Motion compensated prediction plays a vital role in achieving enormous video compression efficiency in advanced video coding standards. Most practical motion…”
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Depth map misalignment correction and dilation for DIBR view synthesis by Xu, Xuyuan, Po, Lai-Man, Ng, Ka-Ho, Feng, Litong, Cheung, Kwok-Wai, Cheung, Chun-Ho, Ting, Chi-Wang

“…The quality of the synthesized views by Depth Image Based Rendering (DIBR) highly depends on the accuracy of the depth map, especially the alignment of object…”
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Adult flatfoot by Tang, Chris Yuk Kwan, Ng, Ka Ho, Lai, Joyce

“…The prevalence of flatfoot is estimated between 3% and 25% in the general population based on studies in healthy volunteers.12 In 1989, Johnson and Strom3…”
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A Search Patterns Switching Algorithm for Block Motion Estimation by NG, Ka-Ho, PO, Lai-Man, WONG, Ka-Man, TING, Chi-Wang, CHEUNG, Kwok-Wai

“…Center-biased fast motion estimation algorithms, e.g., block-based gradient descent search and diamond search, can perform much better than coarse-to-fine…”
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Horizontal Scaling and Shearing-Based Disparity-Compensated Prediction for Stereo Video Coding by WONG, Ka-Man, PO, Lai-Man, CHEUNG, Kwok-Wai, TING, Chi-Wang, NG, Ka-Ho, XUYUAN XU

“…In multiview video coding (MVC), disparity-compensated prediction (DCP) exploits the correlation among different views. A common approach is to use block-based…”
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A convenient synthesis of anthranilic acids by Pd-catalyzed direct intermolecular ortho-C-H amidation of benzoic acids by Ng, Ka-Ho, Ng, Fo-Ning, Yu, Wing-Yiu

“…An efficient method for synthesis of anthranilic acids by Pd-catalyzed ortho-C-H amidation of benzoic acids is disclosed. The amidation is proposed to proceed…”
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Novel Point-Oriented Inner Searches for Fast Block Motion Estimation by Po, Lai-Man, Ting, Chi-Wang, Wong, Ka-Man, Ng, Ka-Ho

“…Recently, an enhanced hexagon-based (EHS) search algorithm was proposed to speedup the original hexagon-based search (HS) using a 6-side-based fast inner…”
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Depth-aided exemplar-based hole filling for DIBR view synthesis by Xuyuan Xu, Lai-Man Po, Chun-Ho Cheung, Litong Feng, Ka-Ho Ng, Kwok-Wai Cheung

“…Quality of synthesized view by Depth-Image-Based Rendering (DIBR) highly depends on hole filling, especially for synthesized view with large disocclusion. Many…”
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A foreground biased depth map refinement method for DIBR view synthesis by Xuyuan Xu, Lai-Man Po, Kwok-Wai Cheung, Ka-Ho Ng, Ka-Man Wong, Chi-Wang Ting

“…The performance of view synthesis using depth image based rendering (DIBR) highly depends on the accuracy of depth map. Inaccurate boundary alignment between…”
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Block-Matching Translational and Rotational Motion Compensated Prediction Using Interpolated Reference Frame by Ng, Ka-Ho, Po, Lai-Man, Cheung, Kwok-Wai, Wong, Ka-Man

“…Motion compensated prediction (MCP) implemented in most video coding schemes is based on translational motion model. However, nontranslational motions, for…”
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Can Prosthetic Hands Mimic a Healthy Human Hand? by Ng, Ka Ho, Nazari, Vaheh, Alam, Monzurul

“…Historical evidence suggests that prostheses have been used since ancient Egyptian times. Prostheses were usually utilized for function and cosmetic…”
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An adaptive background biased depth map hole-filling method for Kinect by Litong Feng, Lai-Man Po, Xuyuan Xu, Ka-Ho Ng, Chun-Ho Cheung, Kwok-Wai Cheung

“…The launch of Kinect provides a convenient way to access the depth information in real time. However the depth map quality still needs to be enhanced for 3D…”
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Adaptive block truncation filter for MVC depth image enhancement by Xuyuan Xu, Lai-Man Po, Chun-Ho Cheung, Litong Feng, Kwok-Wai Cheung, Chi-Wang Ting, Ka-Ho Ng

“…In Multiview Video plus Depth (MVD) format, virtual views are generated from decoded texture videos with decoded depth images through Depth Image based…”
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Block-Matching Translational and Rotational Motion Compensated Prediction Using Interpolated Reference Frame by Ka-Ho, Ng, Lai-Man, Po, Cheung, Kwok-Wai, Ka-Man, Wong

“…Motion compensated prediction (MCP) implemented in most video coding schemes is based on translational motion model. However, nontranslational motions, for…”
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A new motion compensation method using superimposed inter-frame signals by Ka-Ho Ng, Lai-Man Po, Kwok-Wai Cheung, Xu-Yuan Xu, Ka-Man Wong

“…A new MCP method called Neighbor Predicted Superimposed Search (NPSS) algorithm that uses superimposed inter-frame signals to achieve higher prediction…”
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Stretching, compression and shearing disparity compensated prediction techniques for stereo and multiview video coding by Ka-Man Wong, Lai-Man Po, Kwok-Wai Cheung, Ka-Ho Ng, Xuyuan Xu

“…In multiview video coding, disparity compensated prediction exploits the correlation among different views. A common approach is to use the conventional motion…”
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Circumferential constriction ischaemic syndrome (CCIS): A potentially reversible ischaemic condition of lower limb by Tang, Chris Yuk Kwan, Ho, Ng Ka, Ho, Nicola, Kwok, Yuki

“…Circumferential constriction in limb will lead to distal limb ischaemia. This is a potentially reversible condition but it has a drastic consequence if…”
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