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1. 发明授权

US08035711B2 Sub-pixel array optical sensor 有权
标题翻译：子像素阵列光学传感器
公开(公告)号：US08035711B2
公开(公告)日：2011-10-11
申请号：US12125466
申请日：2008-05-22
申请人： Li Liu , Jeffrey Jon Zarnowski , Ketan Vrajlal Karia , Thomas Poonnen , Michael Eugene Joyner
发明人： Li Liu , Jeffrey Jon Zarnowski , Ketan Vrajlal Karia , Thomas Poonnen , Michael Eugene Joyner
IPC分类号： H04N9/083
CPC分类号： H04N9/07 , H04N9/045
摘要： Improving the dynamic range of captured images is disclosed by using sub-pixel arrays to capture light at different exposures and generate color pixel outputs for an image in a single frame. Each sub-pixel array can include multiple sub-pixels. The sub-pixels that make up a sub-pixel array can include red (R) sub-pixels, green (G) sub-pixels, blue (B) sub-pixels, and in some embodiments, clear sub-pixels. Those sub-pixel arrays having clear sub-pixels effectively have a higher exposure level and can capture low-light scenes (for dark areas) better than those sub-pixel arrays without clear sub-pixels. Each sub-pixel array can produce a color pixel output that is a combination of the outputs of the sub-pixels in the sub-pixel array. Each sub-pixel in a sub-pixel array can have the same exposure time, or in some embodiments, individual sub-pixels within a sub-pixel array can have different exposure times to improve the overall dynamic range even more.
摘要翻译：通过使用子像素阵列来捕获不同曝光的光并且在单个帧中为图像生成彩色像素输出来公开改善拍摄图像的动态范围。每个子像素阵列可以包括多个子像素。构成子像素阵列的子像素可以包括红色（R）子像素，绿色（G）子像素，蓝色（B）子像素，并且在一些实施例中可以包括清晰的子像素。具有清晰子像素的子像素阵列有效地具有更高的曝光水平，并且能够比没有清晰子像素的子像素阵列更好地捕获低光场景（对于暗区域）。每个子像素阵列可以产生作为子像素阵列中的子像素的输出的组合的彩色像素输出。子像素阵列中的每个子像素可以具有相同的曝光时间，或者在一些实施例中，子像素阵列内的各个子像素可以具有不同的曝光时间，以提高整个动态范围。

2. 发明申请

US20090290052A1 Color Pixel Pattern Scheme for High Dynamic Range Optical Sensor 审中-公开
标题翻译：高动态范围光学传感器的彩色像素图案方案
公开(公告)号：US20090290052A1
公开(公告)日：2009-11-26
申请号：US12126347
申请日：2008-05-23
申请人： Li Liu , Jeffrey Jon Zarnowski , Ketan Vrajlal Karia , Thomas Poonnen , Michael Eugene Joyner
发明人： Li Liu , Jeffrey Jon Zarnowski , Ketan Vrajlal Karia , Thomas Poonnen , Michael Eugene Joyner
IPC分类号： H04N9/04
CPC分类号： H04N9/045 , H04N5/35554 , H04N2209/045
摘要： The use of a Bayer pattern array in digital image sensors to enhance the dynamic range of the sensors is disclosed. Each Bayer pattern in the array can include three different pixels having a first exposure, and a fourth pixel (which is the same color as one of the other pixels in the array) having a second exposure. The dynamic range of the Bayer pattern array can be enhanced by using different exposure times for the pixels. Each pixel can capture only one channel (i.e. either red (R), green (G) or blue (B) light). Interpolation of neighboring pixels, including those having different exposure times, can enable the pixels in the Bayer pattern array to generate missing color information and effectively become a color pixel, and can allow the Bayer pattern array to have a higher dynamic range.
摘要翻译：公开了在数字图像传感器中使用拜耳图案阵列来增强传感器的动态范围。阵列中的每个拜耳图案可以包括具有第一曝光的三个不同像素和具有第二曝光的第四像素（其与阵列中的其他像素之一相同的颜色）。可以通过对像素使用不同的曝光时间来增强拜耳图案阵列的动态范围。每个像素只能捕获一个通道（即红色（R），绿色（G））或蓝色（B）光）。相邻像素（包括具有不同曝光时间的像素）的插值可以使得拜耳图案阵列中的像素能够产生丢失的颜色信息并有效地成为彩色像素，并且可以允许拜耳图案阵列具有更高的动态范围。

3. 发明申请

US20090290043A1 Sub-Pixel Array Optical Sensor 有权
标题翻译：子像素阵列光学传感器
公开(公告)号：US20090290043A1
公开(公告)日：2009-11-26
申请号：US12125466
申请日：2008-05-22
申请人： Li LIU , Jeffrey Jon Zarnowski , Ketan Vrajlal Karia , Thomas Poonnen , Michael Eugene Joyner
发明人： Li LIU , Jeffrey Jon Zarnowski , Ketan Vrajlal Karia , Thomas Poonnen , Michael Eugene Joyner
IPC分类号： H04N9/73
CPC分类号： H04N9/07 , H04N9/045
摘要： Improving the dynamic range of captured images is disclosed by using sub-pixel arrays to capture light at different exposures and generate color pixel outputs for an image in a single frame. Each sub-pixel array can include multiple sub-pixels. The sub-pixels that make up a sub-pixel array can include red (R) sub-pixels, green (G) sub-pixels, blue (B) sub-pixels, and in some embodiments, clear sub-pixels. Those sub-pixel arrays having clear sub-pixels effectively have a higher exposure level and can capture low-light scenes (for dark areas) better than those sub-pixel arrays without clear sub-pixels. Each sub-pixel array can produce a color pixel output that is a combination of the outputs of the sub-pixels in the sub-pixel array. Each sub-pixel in a sub-pixel array can have the same exposure time, or in some embodiments, individual sub-pixels within a sub-pixel array can have different exposure times to improve the overall dynamic range even more.
摘要翻译：通过使用子像素阵列来捕获不同曝光的光并且在单个帧中为图像生成彩色像素输出来公开改善拍摄图像的动态范围。每个子像素阵列可以包括多个子像素。构成子像素阵列的子像素可以包括红色（R）子像素，绿色（G）子像素，蓝色（B）子像素，并且在一些实施例中可以包括清晰的子像素。具有清晰子像素的子像素阵列有效地具有更高的曝光水平，并且能够比没有清晰子像素的子像素阵列更好地捕获低光场景（对于暗区域）。每个子像素阵列可以产生作为子像素阵列中的子像素的输出的组合的彩色像素输出。子像素阵列中的每个子像素可以具有相同的曝光时间，或者在一些实施例中，子像素阵列内的各个子像素可以具有不同的曝光时间，以提高整个动态范围。

4. 发明申请

US20100149393A1 INCREASING THE RESOLUTION OF COLOR SUB-PIXEL ARRAYS 审中-公开
标题翻译：增加颜色子像素阵列的分辨率
公开(公告)号：US20100149393A1
公开(公告)日：2010-06-17
申请号：US12712146
申请日：2010-02-24
申请人： Jeffrey Jon Zarnowski , Ketan Vrajlal Karia , Thomas Poonnen , Michael Eugene Joyner , Li Liu
发明人： Jeffrey Jon Zarnowski , Ketan Vrajlal Karia , Thomas Poonnen , Michael Eugene Joyner , Li Liu
IPC分类号： H04N5/335
CPC分类号： H04N9/045 , H04N5/3537 , H04N5/35554 , H04N9/07
摘要： Increasing the resolution of digital imagers is disclosed by sampling an image using diagonally oriented color sub-pixel arrays, and creating missing pixels from the sampled image data. A first method maps the diagonal color imager pixels to every other orthogonal display pixel. The missing display pixels can be computed by interpolating data from adjacent color imager pixels, and averaging color information from neighboring display pixels. This averaging can be done either by weighting the surrounding pixels equally, or by applying weights to the surrounding pixels based on intensity information. A second method utilizes the captured color imager sub-pixel data instead of interpolation. Missing color pixels for orthogonal displays can be obtained directly from the sub-pixel arrays formed between the row color pixels in the imager.
摘要翻译：通过使用对角线取向的彩色子像素阵列对图像进行采样并从采样的图像数据创建缺失像素来公开增加数字成像器的分辨率。第一种方法将对角线彩色成像器像素映射到每个其他正交显示像素。可以通过内插来自相邻彩色成像器像素的数据并且从相邻显示像素平均颜色信息来计算缺失的显示像素。可以通过平均加权周围像素或通过基于强度信息对周围像素应用权重来完成该平均。第二种方法利用捕获的彩色成像器子像素数据代替内插。可以直接从成像器中的行彩色像素之间形成的子像素阵列获得用于正交显示的缺失颜色像素。

5. 发明申请

US20110205384A1 VARIABLE ACTIVE IMAGE AREA IMAGE SENSOR 审中-公开
标题翻译：可变主动图像区域图像传感器
公开(公告)号：US20110205384A1
公开(公告)日：2011-08-25
申请号：US12756932
申请日：2010-04-08
申请人： Jeffrey Jon ZARNOWSKI , Ketan Vrajlal Karia , Thomas Poonnen , Michael Eugene Joyner
发明人： Jeffrey Jon ZARNOWSKI , Ketan Vrajlal Karia , Thomas Poonnen , Michael Eugene Joyner
IPC分类号： H04N5/335 , H04N5/228
CPC分类号： H04N9/045 , H04N5/3456 , H04N5/347 , H04N5/376 , H04N9/07
摘要： Embodiments of the invention provide a variable active image area. Sub-pixels are arranged into a variable selection group, which comprises a pixel group. Sub-pixels of the pixel group can belong to a plurality of selection subgroups. A selector is configured to select a combination of one or more selection subgroups to provide variable sub-pixel selection. Variable sub-pixel selection can vary different aspects of a variable active image area (e.g., location, size, shape). Varying these aspects can lead to greater flexibility in alignment and calibration considerations. Selecting only some of all the sub-pixels can lead to less processing and lower power consumption. A plurality of sub-pixel values can be processed into one pixel group value. Variable sub-pixel selection for different variable selection groups can be independent. Holding circuitry can hold unused or non-selected sub-pixels in a reset condition to reduce blooming.
摘要翻译：本发明的实施例提供可变的主动图像区域。子像素被布置成包括像素组的变量选择组。像素组的子像素可以属于多个选择子组。选择器被配置为选择一个或多个选择子组的组合以提供可变子像素选择。可变子像素选择可以改变可变主动图像区域（例如，位置，大小，形状）的不同方面。改变这些方面可以导致更大的校准和校准考虑的灵活性。仅选择所有子像素中的一些可以导致更少的处理和更低的功耗。可以将多个子像素值处理为一个像素组值。不同变量选择组的可变子像素选择可以是独立的。保持电路可以将未使用或未选择的子像素保持在复位状态以减少起霜。

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