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    • 23. 发明授权
    • Wireless communication terminal having video image capability
    • 具有视频图像功能的无线通信终端
    • US06192257B1
    • 2001-02-20
    • US09052820
    • 1998-03-31
    • Rajarshi Ray
    • Rajarshi Ray
    • H04M100
    • H04N7/148H04M1/0208H04M1/0214H04M1/0237H04M1/0247H04M1/0264H04M2250/20H04N2007/145
    • A wireless communication terminal is configured for enabling a user to receive and transmit video images as well as receive and transmit audio or speech signals associated with the user of the terminal and another user at, for example, a remote location. The received video image is obtained from a video image signal received over a radio frequency communications link established between the wireless communication terminal and a cellular base station. This received video image is displayed in a video image display conveniently associated with the wireless communication terminal. The transmitted video image signal may be that of the user of the terminal, of a scene within the field of view of the video camera or of text either coupled to the terminal through one of many well known data interfaces, or an image of text as captured by the camera. This transmitted video image signal is obtained from a video camera associated with the wireless communication terminal and then transmitted over the radio frequency communications link established between the wireless communication terminal and the cellular base station for displaying in a remotely located video image display.
    • 无线通信终端被配置为使得用户能够接收和发送视频图像,以及在例如远程位置处接收和发送与终端的用户和另一用户相关联的音频或语音信号。 所接收的视频图像是从在无线通信终端和蜂窝基站之间建立的射频通信链路接收的视频信号获得的。 该接收到的视频图像显示在与无线通信终端方便地相关联的视频图像显示中。 发送的视频图像信号可以是终端的用户,视频摄像机的视场内的场景,或者通过许多众所周知的数据接口之一耦合到终端的文本,或者文本的图像作为 由相机拍摄。 该发送的视频图像信号是从与无线通信终端相关联的摄像机获得的,然后通过在无线通信终端和蜂窝基站之间建立的射频通信链路进行传输,以在远程位置的视频显示中显示。
    • 24. 发明授权
    • Method and apparatus for surface inspection
    • 表面检查方法和装置
    • US5311598A
    • 1994-05-10
    • US537846
    • 1990-06-13
    • Chinmoy B. BoseRajarshi Ray
    • Chinmoy B. BoseRajarshi Ray
    • G01N21/88G06T5/30G06T7/00G06K9/00
    • G06T7/0004G01N21/88G06T5/30G01N2021/8887G06T2207/20148G06T2207/30148
    • Detection of a defect (18) on the surface (15) of an article (10), such as a semiconductor chip, is accomplished by illuminating the chip in a bright field and then capturing the image thereof with a television camera (30) coupled to a machine vision processor (32). To detect the defect (18), the vision processor first adaptively thresholds the captured image to effectively eliminate areas in the image brighter than those associated with the defect (18) which are usually dark. Thereafter, the vision processor (32) erodes and then dilates the dark areas within the image remaining after binarization to isolate those dark areas associated with the defect. The existence of a defect can then be established by the existence of a now-isolated dark area.
    • 在诸如半导体芯片的物品(10)的表面(15)上的缺陷(18)的检测是通过在明亮场中照亮芯片,然后用耦合的电视摄像机(30)捕获其图像来实现的 到机器视觉处理器(32)。 为了检测缺陷(18),视觉处理器首先自适应地对捕获的图像进行阈值,以有效地消除比通常较暗的缺陷(18)相关联的图像更亮的区域。 此后,视觉处理器(32)侵蚀并随后扩大二值化后剩余的图像内的暗区域,以隔离与缺陷相关联的那些暗区域。 然后可以通过存在现在孤立的黑暗区域来建立缺陷的存在。
    • 26. 发明授权
    • Method and apparatus for inspection of specular, three-dimensional
features
    • 用于检查镜面,三维特征的方法和装置
    • US5058178A
    • 1991-10-15
    • US454210
    • 1989-12-21
    • Rajarshi Ray
    • Rajarshi Ray
    • G01B11/30B23K1/00G01N21/88G01N21/93G01N21/956G06T1/00G06T7/00H04N7/18H05K3/34
    • G06T7/0006G01N21/95684G01N2021/8825G01N2021/8867G01N2021/8887G01N2021/95661G01N2201/102G06T2207/30152
    • Defective or missing solder bumps (18) on a surface (13) of an article (10) such as a chip carrier are detected by first illuminating the surface with dark field illumination. Next, the image of the surface of the article is captured, typically by a television camera (30). The captured image is processed to detect defects by first creating a window (57) in the image about each group of solder bumps and then creating a bounding box (58) about each bump in each window. Each of a set of attributes, including: the number, size and location of the windows, the size location and number of boxes in each window, and the dimensions, shape and brightness of the image in each box, is measured. The value of each attribute is compared to a reference value, representing the value of the attribute when no defects are present. If the attribute differs by more than a predetermined tolerance for its reference value, than a particular defect is prevent. Verification of certain defects may be accomplished by repeating the above-described process using bright field illumination.
    • 通过首先用暗场照明照射表面,来检测诸如芯片载体的物品(10)的表面(13)上的缺陷或缺失的焊料凸块(18)。 接下来,通常通过电视摄像机(30)拍摄物品表面的图像。 处理捕获的图像以通过首先在关于每组焊料凸块的图像中创建窗口(57),然后在每个窗口中围绕每个凸起创建边界框(58)来检测缺陷。 一组属性中的每一个,包括:窗口的数量,大小和位置,每个窗口中的框的大小位置和数量,以及每个框中的图像的尺寸,形状和亮度。 将每个属性的值与参考值进行比较,表示当没有缺陷存在时属性的值。 如果属性对于其参考值差异超过预定的公差,则防止特定缺陷。 可以通过使用亮场照明重复上述过程来实现某些缺陷的验证。