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    • 2. 发明授权
    • Method of detection of erroneous memory usage
    • 检测错误内存使用的方法
    • US08732535B2
    • 2014-05-20
    • US13441275
    • 2012-04-06
    • Jae-Hoon JeongEkaterina Anatolievna GorelkinaHyun-Joo Ahn
    • Jae-Hoon JeongEkaterina Anatolievna GorelkinaHyun-Joo Ahn
    • G06F11/00
    • G06F11/3636
    • A method of detection of erroneous memory usage is provided. The method includes starting a computer and executing a program and a monitoring tool to collect calls to a memory during execution of the program, detecting a call to the memory using the monitoring tool, extracting lines of code which request access to a memory address via the call to the memory, detecting a set of variables to which access is granted via the call to the memory, extracting, after execution of the predetermined program, the set of variables for each of the lines of code, detecting erroneous memory usage by matching the extracted lines of code with the set of variables, and determining the call as erroneous upon access being granted to the memory corresponding to the set of variables during execution of the predetermined program when access is not possible during the execution of the program.
    • 提供了一种检测错误存储器使用的方法。 该方法包括启动计算机并执行程序和监视工具以在执行程序期间收集对存储器的呼叫,使用监视工具检测到对存储器的呼叫,提取通过该存储器地址请求访问存储器地址的代码行 调用存储器,检测通过对存储器的调用向其授予访问的一组变量,在执行预定程序之后,提取每行代码的变量集合,通过匹配 提取的代码行与变量集合,并且当在执行程序期间不可访问时,在执行预定程序期间,在访问时将调用确定为对应于该组变量的存储器的错误。
    • 5. 发明授权
    • Image sensor with scaler and image scaling method thereof
    • 具有缩放器和图像缩放方法的图像传感器
    • US07589748B2
    • 2009-09-15
    • US11319553
    • 2005-12-29
    • Hyun-Joo Ahn
    • Hyun-Joo Ahn
    • G09G5/00
    • H04N1/40068G06F3/0481G06F3/14G06F15/7842G06T3/40G09G5/00G09G5/373G09G2340/0407G09G2360/02H01L27/146H04N5/23296H04N5/2628
    • An image sensor is widely used in many fields, including the medical field and the security device field. Specifically, the image sensor is most widely used in digital cameras and mobile phones. The digital camera and the mobile phone require capturing images of higher resolution and higher quality. However, a preview size of the mobile phone or digital camera should be small because of a display limitation. Therefore, a function for reducing an image size or magnifying a specific portion of the picture is essential in the image sensor. Accordingly, there is provided an image sensor with a scaler. The image sensor with the scaler can arbitrarily adjust a size of an image without any additional scaling chip.
    • 图像传感器广泛应用于包括医疗领域和安全装置领域的许多领域。 具体来说,图像传感器在数码相机和手机中被广泛使用。 数码相机和手机需要拍摄更高分辨率和更高质量的图像。 然而,由于显示限制,手机或数码相机的预览尺寸应该较小。 因此,在图像传感器中,减少图像尺寸或放大图像的特定部分的功能至关重要。 因此,提供了具有缩放器的图像传感器。 具有定标器的图像传感器可以任意调整图像的大小,而无需任何附加的缩放芯片。
    • 6. 发明授权
    • Image sensor having reset compensation block
    • 具有复位补偿块的图像传感器
    • US07372492B2
    • 2008-05-13
    • US10835825
    • 2004-04-29
    • Hyun-Joo Ahn
    • Hyun-Joo Ahn
    • H04N3/14H04N5/335H01L27/00
    • H04N5/3575H04N5/3598H04N5/378
    • An image sensor for obtaining a digital image data by using a correlated double sampling method unrelated to an intensity of inputted light includes a pixel array including N×M unit pixels; a reset voltage check block for receiving each reset signal outputted from each unit pixel and comparing a level of each reset signal with a minimum level of a preferable reset signal to thereby generate a reset compensation control signal; a reset voltage compensation block for compensating the reset signal outputted from each unit pixel in response to the reset compensation control signal to generate a compensated reset signal; and an analog to digital converter for deriving an analog image data by using a data signal outputted from the pixel array and the compensated reset signal to convert the analog image data into the digital image data.
    • 用于通过使用与输入光的强度无关的相关双重采样方法获得数字图像数据的图像传感器包括:包括N×M个单位像素的像素阵列; 复位电压检查块,用于接收从每个单位像素输出的每个复位信号,并将每个复位信号的电平与优选复位信号的最小电平进行比较,从而产生复位补偿控制信号; 复位电压补偿块,用于响应于所述复位补偿控制信号补偿从每个单位像素输出的复位信号,以产生经补偿的复位信号; 以及模数转换器,用于通过使用从像素阵列输出的数据信号和补偿的复位信号来导出模拟图像数据,以将模拟图像数据转换为数字图像数据。
    • 8. 发明授权
    • Edge detecting method
    • 边缘检测方法
    • US07366347B2
    • 2008-04-29
    • US11096637
    • 2005-03-30
    • Dong-Seob SongHyun-Joo Ahn
    • Dong-Seob SongHyun-Joo Ahn
    • G06K9/00G06K9/48G06K9/40G06T13/00G09G5/00H04N5/208H04N1/46
    • H04N9/045G06T7/13G06T2207/20192H04N2209/046
    • There is provided an edge detecting method, which is capable of preventing a noise influence caused by imaging device and a color interpolation. The edge detecting method includes the steps of: setting a first kernel based on a center pixel in pixel data arranged in a mosaic structure; setting a second kernel based on the center pixel within the first kernel; detecting whether a pixel having a green value in the second kernel is a defective pixel, and correcting the pixel; converting all pixels of the second kernel into pixels having green value; calculating a slope value by using a mask for detecting an edge in the second kernel; and detecting an edge by adding the slope value to a luminance value obtained by a color space conversion.
    • 提供了一种边缘检测方法,其能够防止由成像装置引起的噪声影响和颜色插值。 边缘检测方法包括以下步骤:基于以马赛克结构排列的像素数据中的中心像素设置第一内核; 基于第一个内核中的中心像素设置第二个内核; 检测所述第二内核中具有绿色值的像素是否是缺陷像素,并校正所述像素; 将第二个内核的所有像素转换成具有绿色值的像素; 通过使用用于检测所述第二内核中的边缘的掩码来计算斜率值; 以及通过将斜率值加到由色空间转换获得的亮度值来检测边缘。
    • 9. 发明申请
    • Image sensor and method for controlling image brightness distribution therein
    • 用于控制图像亮度分布的图像传感器和方法
    • US20070146502A1
    • 2007-06-28
    • US11642594
    • 2006-12-21
    • Hyun-Joo Ahn
    • Hyun-Joo Ahn
    • H04N5/235
    • H04N5/20H04N1/6027H04N1/6058H04N5/2351H04N5/243
    • Provided is an image sensor that can solve the limitation in expanding an output dynamic range, which is caused when a uniform gain contrast scheme is applied, and prevent the reduction of an input dynamic range, thereby stably adjusting the distribution of image brightness. The image sensor includes a contrast gain adjuster for adjusting a brightness distribution of an image detected from a pixel array by controlling a contrast gain of an inputted pixel data. The contrast gain adjuster calculates a minimum brightness value of a dark region and a maximum brightness value of a bright region from the image brightness distribution, the dark region and the bright region being divided according to a set reference value.
    • 提供了一种可以解决在应用均匀增益对比度方案时引起的扩大输出动态范围的限制的图像传感器,并且防止输入动态范围的减小,由此稳定地调整图像亮度的分布。 图像传感器包括对比度增益调节器,用于通过控制输入的像素数据的对比度增益来调整从像素阵列检测到的图像的亮度分布。 对比度增益调节器根据设定的基准值,根据图像亮度分布,暗区域和亮区域划分暗区域的最小亮度值和亮区域的最大亮度值。
    • 10. 发明申请
    • Edge detecting method
    • 边缘检测方法
    • US20050249417A1
    • 2005-11-10
    • US11096637
    • 2005-03-30
    • Dong-Seob SongHyun-Joo Ahn
    • Dong-Seob SongHyun-Joo Ahn
    • H04N5/217G06K9/34G06K9/40G06K9/48G06T5/00H04N9/64
    • H04N9/045G06T7/13G06T2207/20192H04N2209/046
    • There is provided an edge detecting method, which is capable of preventing a noise influence caused by imaging device and a color interpolation. The edge detecting method includes the steps of: setting a first kernel based on a center pixel in pixel data arranged in a mosaic structure; setting a second kernel based on the center pixel within the first kernel; detecting whether a pixel having a green value in the second kernel is a defective pixel, and correcting the pixel; converting all pixels of the second kernel into pixels having green value; calculating a slope value by using a mask for detecting an edge in the second kernel; and detecting an edge by adding the slope value to a luminance value obtained by a color space conversion.
    • 提供了一种边缘检测方法,其能够防止由成像装置引起的噪声影响和颜色插值。 边缘检测方法包括以下步骤:基于以马赛克结构排列的像素数据中的中心像素设置第一内核; 基于第一个内核中的中心像素设置第二个内核; 检测所述第二内核中具有绿色值的像素是否是缺陷像素,并校正所述像素; 将第二个内核的所有像素转换成具有绿色值的像素; 通过使用用于检测所述第二内核中的边缘的掩码来计算斜率值; 以及通过将斜率值加到由色空间转换获得的亮度值来检测边缘。