Description: 一个可以在屏幕上显示一个转动的三维的人脸造型,可以转动-A can on the screen shows a rotating three-dimensional face shape, you can rotate Platform: |
Size: 688128 |
Author:chan |
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Description: 四棱锥由5个面构成一个封闭的立体图,其中4个共顶点的侧面是三角形,底面是个四边形。如果我们要绘制一个3D的四棱锥只需要绘制这5个面即可，绘制的方法和前一篇文章OpenGL_Qt学习笔记之_03(平面图形的着色和旋转)的相同。只不过这里的顶点坐标是3维的，所以图像深度那一维不一定为0。因此我们可以事先计算好四棱锥各个顶点的坐标，这对学过立体几何的人来说应该是小case了。然后绘制每个面就可以。
注意，在opengl中绘制每个面时，所有面给出的顶点的顺序都要按照逆时针或者顺时针(我这里采用的是逆时针)，这样才能保证所绘制出来的图像时正确的。
现在我们在paintGL中开始绘制四棱锥，如果按照NeHe的教程，它只是绘制了个金字塔，并没有底面，只有4个侧面，这里，我采用它的方法，代码如下: -A closed perspective view of four-sided pyramid is constituted by 5 surface, wherein the side of vertex 4 is triangular, the bottom surface is a quadrangle. If we want to draw a 3D pyramid only need to draw the five faces can, the drawn and former article OpenGL_Qt study notes _03 (planar graph coloring and rotation). But here vertex coordinates of a three-dimensional, so the image depth that dimension is not necessarily 0. So we can be calculated in advance the good four-sided pyramid coordinates of each vertex should learn solid geometry, is a small case. Then you can draw each face. Opengl in draw each surface, all surface given vertex order must be in accordance with the counterclockwise or clockwise (I used counterclockwise), so as to ensure the drawn image. Now we start drawing in paintGL four pyramid NeHe tutorial, it just draws a pyramid and the bottom surface of only four sides, here, I adopt its methods, the code is as follows: Platform: |
Size: 309248 |
Author:wuwei |
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Description: 基于OpenGL的三维人脸建模，并且实现模型旋转以及不同网线组成-Line consisting of OpenGL-based 3D face modeling and implementation model rotation and different network Platform: |
Size: 2352128 |
Author:严耀 |
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Description: 1. 人脸检测的高正确率，误检，漏检很少，支持多脸（max=32）。 平面旋转高达 60 度，并带鼻，嘴定位，及眼镜判断等功能。 2. 支持双目(双摄像头)/多目的 3D 维度识别,增加了人脸的特征集,再次提高识别精度,并有效防止照片通过。 3. 人脸识别的高精度，向用户推荐的识别阀值不仅能适应光线环境的变化，具备满足实际应用的识别正确率。带 眼镜或头发挡住眉毛都行。（但黑粗边眼镜的识别率相对低些，即在较好的识别环境下，黑粗边眼镜仍是 OK 的，只要看得清眼球，就对识别率没有任何影响） 4. 在背光模式下（看上去黑黑的一大片），开启背光识别的开关后，识别速度会减低，把识别阀值调低一些，就 仍然能进行准确的识别。 5. 支持双目，对高清大图，开启二次精定位开关后，能准确地定位人眼中的瞳孔。准确的人眼定位，使 用户能在此基础上开发出多款有创意的延伸产品。(1. Face detection has high accuracy, false detection and few missed detection. It supports multiple faces (max = 32). Plane rotation up to 60 degrees, and with nose, mouth positioning, and glasses judgment and other functions. 2. Support binocular (dual camera) / multi-purpose 3D dimension recognition, increase the feature set of face, improve the recognition accuracy again, and effectively prevent photos from passing. 3. High accuracy of face recognition. The recognition threshold recommended to users can not only adapt to the changes of light environment, but also meet the recognition accuracy of practical application. Wear glasses or hair over your eyebrows. (but the recognition rate of black spectacles is relatively low, that is to say, in a better recognition environment, black spectacles are still OK, as long as you can see the eyeball clearly, there is no impact on the recognition rate.)) Platform: |
Size: 6934528 |
Author:张长宜 |
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Search - 3d face rotation