公开(公告)号：US08600125B2

公开(公告)日：2013-12-03

申请号：US11993180

申请日：2006-06-21

申请人： Arie E. Kaufman ,  Wei Hong ,  Xianfeng Gu ,  Feng Qiu

发明人： Arie E. Kaufman ,  Wei Hong ,  Xianfeng Gu ,  Feng Qiu

IPC分类号： G06K9/00

CPC分类号： G06K9/342 ,  G06K2209/053 ,  G06T3/0037 ,  G06T7/0012 ,  G06T15/08 ,  G06T2207/30028

摘要： In the present methods, the automatic detection of polyps is converted into a 2D pattern recognition problem using conformal mapping and direct volume rendering. The colon surface is first segmented and extracted from the CT data set of the abdomen, which is then mapped to a 2D plane using conformal mapping. Ray casting is used to determine sub-surface density values and the flattened image is rendered using a volume rendering technique with a translucent electronic biopsy transfer function. Polyp candidates are detected by a clustering method which identifies regions of elevated sub-surface density. The potential for false positives is reduced by analyzing the volumetric shape and texture features of the polyp candidate regions.

摘要翻译： 在本方法中，使用保形映射和直接体绘制，将息肉的自动检测转换为2D模式识别问题。 首先将结肠表面分割并从腹部的CT数据集中提取出来，然后使用保形图映射到2D平面。 Ray铸造用于确定亚表面密度值，并且使用具有半透明电子活检传递函数的体绘制技术来渲染平坦化图像。 通过聚类方法检测Polyp候选物，其识别升高的亚表面密度的区域。 通过分析息肉候选区域的体积形状和纹理特征来减少假阳性的潜力。

公开(公告)号：US20130279540A1

公开(公告)日：2013-10-24

申请号：US13566875

申请日：2012-08-03

申请人： Jonathan W. Hui ,  Wei Hong ,  Jean-Philippe Vasseur

发明人： Jonathan W. Hui ,  Wei Hong ,  Jean-Philippe Vasseur

IPC分类号： H04B1/7156

CPC分类号： H04W72/0406 ,  H04L1/1607 ,  H04L2001/0093 ,  H04W72/005 ,  H04W72/1205 ,  H04W72/1263 ,  H04W72/1278 ,  H04W72/1289 ,  H04W84/18

摘要： In one embodiment, a device receives and stores a broadcast schedule, and may determine whether a neighbor unicast listening schedule is available for a neighboring device. If so, the device may transmit a data frame to the neighboring device pursuant to the neighbor unicast listening schedule. If a neighbor unicast listening schedule is not available, the device may transmit the data frame to the neighboring device pursuant to a broadcast schedule. Once the data frame is received by the neighboring device, pursuant to the neighbor unicast listening schedule or the broadcast schedule, an acknowledgement may be received from the neighboring device, which may include an updated neighbor unicast listening schedule for that neighboring device.

摘要翻译： 在一个实施例中，设备接收并存储广播调度，并且可以确定邻居单播监听调度是否可用于相邻设备。 如果是，则设备可以根据邻居单播监听时间表向相邻设备发送数据帧。 如果邻居单播监听调度不可用，则设备可以根据广播时间表将数据帧发送到相邻设备。 一旦相邻设备接收到数据帧，根据邻居单播监听调度或广播调度，可以从相邻设备接收确认，该确认可以包括该相邻设备的更新的邻居单播监听调度。

公开(公告)号：US20130278844A1

公开(公告)日：2013-10-24

申请号：US13454760

申请日：2012-04-24

申请人： Wei Hong ,  Kar-Han Tan ,  Ian N. Robinson

发明人： Wei Hong ,  Kar-Han Tan ,  Ian N. Robinson

IPC分类号： G02F1/13

CPC分类号： G02F1/1313 ,  G02F1/133504 ,  G02F2001/133342

摘要： A display-camera system includes a liquid crystal panel having a screen side and a back side that is opposed to the screen side. A visible light camera is positioned a first spaced distance from the back side such that a field of view of the camera encompasses all or a fraction of an area of the liquid crystal panel. A visible light source is positioned a second spaced distance from the back side and outside of the field of view of the camera. A diffuser is positioned between the visible light source and the back side.

摘要翻译： 显示照相机系统包括具有与屏幕侧相对的屏幕侧和背面的液晶面板。 可见光相机位于与背面的第一间隔距离处，使得照相机的视野包围液晶面板的全部或部分区域。 可见光源与照相机视场的背侧和外侧隔开第二距离。 漫射器位于可见光源和背面之间。

公开(公告)号：US20130028582A1

公开(公告)日：2013-01-31

申请号：US13191357

申请日：2011-07-26

申请人： Aziz Umit Batur ,  Mark Noel Gamadia ,  Gregory Robert Hewes ,  Fred William Ware, JR. ,  Wei Hong

发明人： Aziz Umit Batur ,  Mark Noel Gamadia ,  Gregory Robert Hewes ,  Fred William Ware, JR. ,  Wei Hong

IPC分类号： G03B13/36 ,  G03B13/00 ,  G03B13/18

CPC分类号： G03B13/36 ,  G03B19/07 ,  G03B35/10 ,  H04N5/23212 ,  H04N13/239

摘要： Methods for automatic focus in a stereographic imaging device that includes two imaging sensor systems are provided. Focus searches are executed on both imaging sensor systems to determine optimal focused lens positions for each. The focus searches may be executed currently or sequentially, and may be at differing lens position granularities. Focal scores and spatial locations, i.e., the locations of focus regions, may be shared between the imaging sensor systems to coordinate the focus searches. Touchscreen coordinates may also be used to coordinate the focus searches.

摘要翻译： 提供了包括两个成像传感器系统的立体成像装置中的自动聚焦方法。 在两个成像传感器系统上执行焦点搜索，以确定每个成像传感器的最佳聚焦透镜位置。 焦点搜索可以当前或顺序执行，并且可以处于不同的镜头位置粒度。 焦点分数和空间位置，即焦点区域的位置可以在成像传感器系统之间共享以协调焦点搜索。 触摸屏坐标也可用于协调焦点搜索。

公开(公告)号：US20130028295A1

公开(公告)日：2013-01-31

申请号：US13192802

申请日：2011-07-28

申请人： Jonathan W. Hui ,  Wei Hong ,  Lik Chuen Alec Woo

发明人： Jonathan W. Hui ,  Wei Hong ,  Lik Chuen Alec Woo

IPC分类号： H04B1/713

CPC分类号： H04B1/713

摘要： In one embodiment, a device in a frequency hopping communication network operate in a first mode according to a common broadcast schedule for the network that simultaneously overlays a first configured portion of all independently determined unicast listening schedules in the network. In response to determining a power outage condition, the device switches to operation in a power outage mode where the common broadcast schedule for the network in the power outage mode simultaneously overlays a second configured portion of all independently determined unicast listening schedules in the network, the second configured portion greater than the first configured portion. In one embodiment, the device broadcasts one or more power outage notifications (PONs) in response to determining the power outage condition as a reduction of a main power supply at the device. In another embodiment, the device receives a PON while powered as the power outage condition.

摘要翻译： 在一个实施例中，跳频​​通信网络中的设备根据网络的公共广播调度以第一模式操作，该网络同时覆盖网络中所有独立确定的单播监听时间表的第一配置部分。 响应于确定停电状况，设备切换到停电模式中的操作，其中停电模式下的网络的公共广播调度同时覆盖网络中所有独立确定的单播监听时间表的第二配置部分， 第二构造部分大于第一构造部分。 在一个实施例中，响应于将停电状况确定为设备上的主电源的减少，设备广播一个或多个断电通知（PON）。 在另一个实施例中，设备在停电状态下被接通时接收PON。

公开(公告)号：US20130016759A1

公开(公告)日：2013-01-17

申请号：US13180853

申请日：2011-07-12

申请人： Jonathan W. Hui ,  Wei Hong ,  Lik Chuen Alec Woo

发明人： Jonathan W. Hui ,  Wei Hong ,  Lik Chuen Alec Woo

IPC分类号： H04B1/713

CPC分类号： H04B1/713

摘要： In one embodiment, a communication device samples a particular frequency hopping sequence during only a particular specified sub-timeslot of a timeslot. If a transmission energy is not detected during the specified sub-timeslot, the device turns off its receiver for a remainder of the timeslot. Otherwise, it continues to sample the particular frequency hopping sequence for at least one or more additional sub-timeslots of the remainder of the timeslot. In another embodiment, a communication device determines whether a neighboring communication device is operating in a first mode or a second mode. If in the second mode, it transmits a transmission to the neighboring communication device starting at any sub-timeslot of the plurality of sub-timeslots. If in the first mode, it transmits the transmission to the neighboring communication device while ensuring that the transmission is actively energized during a particular specified sub-timeslot.

摘要翻译： 在一个实施例中，通信设备仅在时隙的特定指定子时隙中采样特定的跳频序列。 如果在指定的子时隙期间未检测到传输能量，则该设备在时隙的剩余时间内关闭其接收机。 否则，它继续针对时隙的其余部分的至少一个或多个附加子时隙对特定跳频序列进行采样。 在另一个实施例中，通信设备确定相邻通信设备是否在第一模式或第二模式中操作。 如果在第二模式中，则从多个子时隙的任何子时隙开始向相邻通信设备发送传输。 如果在第一模式中，则将传输发送到相邻通信设备，同时确保在特定指定子时隙期间传输被激活。

公开(公告)号：US20130016757A1

公开(公告)日：2013-01-17

申请号：US13180908

申请日：2011-07-12

申请人： Jonathan W. Hui ,  Lik Chuen Alec Woo ,  Wei Hong

发明人： Jonathan W. Hui ,  Lik Chuen Alec Woo ,  Wei Hong

IPC分类号： H04B1/713

CPC分类号： H04W52/0209 ,  H04B1/7156 ,  H04W56/00

摘要： In one embodiment, a battery-operated communication device “quick-samples” a frequency hopping sequence at a periodic rate corresponding to a substantially low duty cycle, and is discovered by (e.g., attached to) a main-powered communication device. During a scheduled sample, the main-powered communication device transmits a control packet to be received by the battery-operated communication device, the control packet containing timing information and transmitted to account for worst-case clock drift error between the two devices. The battery-operated communication device responds to the control packet with a link-layer acknowledgment containing timing information from the battery-operated communication device. Accordingly, the two devices may re-synchronize their timing based on the timing information in the control packet and acknowledgment, respectively.

摘要翻译： 在一个实施例中，电池供电的通信设备以对应于基本上较低的占空比的周期性速率快速采样跳频序列，并且由（例如附接到）主供电通信设备来发现。 在预定采样期间，主供电通信设备发送由电池供电的通信设备接收的控制分组，该控制分组包含定时信息，并且被传送以考虑两个设备之间的最坏情况时钟漂移误差。 电池供电的通信设备用包含来自电池供电通信设备的定时信息的链路层确认来响应控制分组。 因此，两个设备可以分别基于控制分组和确认中的定时信息重新同步其定时。

公开(公告)号：US20130010055A1

公开(公告)日：2013-01-10

申请号：US13532162

申请日：2012-06-25

申请人： Veeramanikandan Raju ,  Wei Hong ,  Minhua Zhou

发明人： Veeramanikandan Raju ,  Wei Hong ,  Minhua Zhou

IPC分类号： H04N13/00

CPC分类号： H04N19/46 ,  H04N13/128 ,  H04N19/597 ,  H04N19/70

摘要： In response to a stereoscopic image of first and second views, a maximum positive disparity is computed between the first and second views, and a minimum negative disparity is computed between the first and second views. Within a bit stream, at least the stereoscopic image, the maximum positive disparity, and the minimum negative disparity are encoded.

摘要翻译： 响应于第一和第二视图的立体图像，在第一和第二视图之间计算最大正视差，并且在第一视图和第二视图之间计算最小负视差。 在比特流内，至少对立体图像，最大正视差和最小负视差进行编码。

公开(公告)号：US20110026596A1

公开(公告)日：2011-02-03

申请号：US12510958

申请日：2009-07-28

申请人： Wei Hong

发明人： Wei Hong

IPC分类号： H04N7/26

CPC分类号： H04N5/145

摘要： Methods for coherent block-based motion estimation for motion-compensated frame rate conversion of decoded video sequences are provided. In some of the disclosed methods, motion vectors are estimated for each block in a decoded frame in both raster scan order and reverse raster scan order using prediction vectors from selected spatially and temporally neighboring blocks. Further, in some of the disclosed methods, a spatial coherence constraint that detects and removes motion vector crossings is applied to the motion vectors estimated for each block in a frame to reduce halo artifacts in the up-converted video sequence. In addition, in some of the disclosed methods, post processing is performed on estimated motion vectors to improve the coherence of the motion vectors. This post-processing includes application of vector median filters to the estimated motion vectors for a frame and/or application of a sub-block motion refinement to increase the density of the motion field.

摘要翻译： 提供了用于解码视频序列的运动补偿帧速率转换的基于相干块的运动估计的方法。 在一些所公开的方法中，使用来自所选空间和时间相邻块的预测向量，以解码帧中的每个块以光栅扫描顺序和反向光栅扫描顺序来估计运动矢量。 此外，在一些所公开的方法中，检测和去除运动矢量交叉的空间相干约束被应用于为帧中的每个块估计的运动矢量，以减少上变频视频序列中的晕圈伪影。 此外，在一些所公开的方法中，对估计的运动矢量执行后处理以改善运动矢量的相干性。 该后处理包括将矢量中值滤波器应用于帧的估计运动矢量和/或子块运动细化的应用以增加运动场的密度。

公开(公告)号：US06429991B1

公开(公告)日：2002-08-06

申请号：US09291328

申请日：1999-04-15

申请人： Scott J. Tucker ,  Wei Hong

发明人： Scott J. Tucker ,  Wei Hong

IPC分类号： G11B503

CPC分类号： G11B5/02 ,  G11B5/00 ,  G11B5/012 ,  G11B5/09 ,  G11B2005/0018

摘要： An arrangement for reading data from a magnetic data carrier using a magneto-resistive (MR) head. A bias current source supplies the MR head with a bias current adjustable after MR head change. A bias current control signal having multiple control bits is used for adjusting the bias current. A noise shunting capacitor is connected to the MR head for reducing noise caused by the bias current. A discharging circuit is coupled to the noise shunting capacitor to discharge the capacitor when the bias current is being adjusted, in order to reduce bias current settling time. The discharging circuit comprises a pair of switches for each control bit of the bias current control signal. One of the switches is connected to a positive plate of the noise shunting capacitor, and another switch is coupled to a negative plate of the capacitor. The switches are controlled by a one-shot multivibrator triggered by a falling edge of the corresponding control bit. Weighting resistors are connected to each switch for weighting a discharge current produced by the switch in accordance with a position of the corresponding control bit so as to produce a larger discharge current in response to a higher-order control bit of the bias current control signal.

摘要翻译： 一种用于使用磁阻（MR）磁头从磁数据载体读取数据的装置。 偏置电流源为MR磁头提供在MR磁头更换后可调整的偏置电流。 具有多个控制位的偏置电流控制信号用于调整偏置电流。 噪声分流电容器连接到MR磁头，以减少由偏置电流引起的噪声。 当调整偏置电流时，放电电路耦合到噪声分流电容器以对电容器放电，以减少偏置电流稳定时间。 放电电路包括用于偏置电流控制信号的每个控制位的一对开关。 一个开关连接到噪声分流电容器的正极板，另一个开关耦合到电容器的负极板。 开关由相应控制位的下降沿触发的单稳态多谐振荡器控制。 加权电阻器连接到每个开关，用于根据相应控制位的位置加权由开关产生的放电电流，以便响应于偏置电流控制信号的较高阶控制位而产生较大的放电电流。