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    • 1. 发明授权
    • Capture control for in vivo camera
    • 捕获控制体内相机
    • US07974454B1
    • 2011-07-05
    • US13050797
    • 2011-03-17
    • Chung-Ta LeeKang-Huai WangGordon C Wilson
    • Chung-Ta LeeKang-Huai WangGordon C Wilson
    • G06K9/00
    • A61B1/041A61B1/00016A61B1/0002A61B1/00032A61B1/00036A61B1/0684A61B5/0031A61B5/01A61B5/03A61B5/073A61B5/14539A61B5/7232H04N5/144H04N5/232H04N5/2354H04N2005/2255
    • Systems and methods are provided for capture control of video data from a capsule camera system having an on-board storage or wireless transmission. The capsule camera system moves through the GI tract under the action of peristalsis and records images of the intestinal walls. For some periods of time, the capsule camera system may move very slowly and there are little differences in the image data between different frames. These frames can be designated for discard to conserve storage space or conserve power. A capsule control processing unit is incorporated to evaluate motion metric based on image data associated with a current frame and a previous frame. A decision is made based on a profile of the motion metric to select an operation mode from a group comprising Capture Mode and Conservation Mode. The capsule camera system is then operated according to the selected operation mode.
    • 提供了系统和方法用于从具有车载存储或无线传输的胶囊相机系统捕获对视频数据的控制。 胶囊相机系统在蠕动作用下通过胃肠道移动,并记录肠壁的图像。 在一段时间内,胶囊相机系统可以移动得非常缓慢,并且不同帧之间的图像数据几乎没有差异。 这些帧可以被指定为丢弃以节省存储空间或节省功率。 并入胶囊控制处理单元,以基于与当前帧和先前帧相关联的图像数据来评估运动度量。 基于运动度量的轮廓进行判定,以从包括捕获模式和保存模式的组中选择操作模式。 然后根据选择的操作模式操作胶囊相机系统。
    • 7. 发明授权
    • System and method for capsule camera with capture control and motion-compensated video compression
    • 具有捕获控制和运动补偿视频压缩的胶囊相机的系统和方法
    • US08165374B1
    • 2012-04-24
    • US13156439
    • 2011-06-09
    • Kang-Huai WangGordon C Wilson
    • Kang-Huai WangGordon C Wilson
    • G06K9/00
    • H04N5/2252H04N19/523H04N19/56
    • Systems and methods for a capsule camera having on-board storage or wireless transmission to control image capture using motion information and to encode captured images based on motion compensated video compression are disclosed. In order to conserve the precious storage and power resources, the capsule camera measures motion metric to select a skip mode or a capture mode. In order to reduce computations related motion metric derivation, the motion metric is based on sub-images corresponding to a current frame and a previous captured frame instead of full-size images. When the skip mode is selected, the capsule camera exercises storage space/power conservation by skipping unnecessary image capture and/or reducing luminous energy of a light source or other means for power conservation. When the capture mode is selected, a full-size full-resolution frame is captured and compressed using motion-compensated video compression to achieve high compression ratio.
    • 公开了具有车载存储或无线传输的胶囊相机的系统和方法,以使用运动信息来控制图像捕获并且基于运动补偿的视频压缩对捕获的图像进行编码。 为了节省宝贵的存储和电力资源,胶囊相机测量运动度量以选择跳过模式或捕获模式。 为了减少计算相关的运动度量推导,运动度量基于对应于当前帧和先前捕获帧的子图像,而不是全尺寸图像。 当选择跳过模式时,胶囊相机通过跳过不必要的图像捕获和/或降低光源的光能或其它用于节能的装置来进行存储空间/功率节省。 当选择捕获模式时,使用运动补偿视频压缩捕获并压缩全尺寸全分辨率帧,以实现高压缩比。