Android Facedetector 姿势值始终为 0

Question

所以我正在使用 facedector 内置的机器人检测和确定位图中人脸的位置。现在它可以工作并会告诉我:置信度、eyesDistance 和中点，但每当我尝试获取姿势时，无论我尝试使用什么图像，它总是返回 0。

这是我用来获取姿势的代码:

poseString = "Pose: (" + getFace.pose(FaceDetector.Face.EULER_X) + ","
                        + getFace.pose(FaceDetector.Face.EULER_Y) + ","
                        + getFace.pose(FaceDetector.Face.EULER_Z) + ")";

这是我使用的代码:

arrayFaces = new FaceDetector(picWidth, picHeight, NUM_FACES);
        arrayFaces.findFaces(sourceImage, getAllFaces);

        for (int i = 0; i < getAllFaces.length; i++) {
            getFace = getAllFaces[i];
            try {
                PointF eyesMP = new PointF();
                getFace.getMidPoint(eyesMP);
                poseString = "Pose: ("+ getFace.pose(FaceDetector.Face.EULER_X) + ","
                        + getFace.pose(FaceDetector.Face.EULER_Y) + ","
                        + getFace.pose(FaceDetector.Face.EULER_Z) + ")";
                EULER_X = getFace.EULER_X;
                EULER_Y = getFace.EULER_Y;
                EULER_Z = getFace.EULER_Z;      

                eyesDistance[i] = getFace.eyesDistance();
                eyesMidPts[i] = eyesMP;

                if (DEBUG) {
                    currentx = eyesMidPts[i].x;
                    currenty = eyesMidPts[i].y;
                    betweeneyes = getFace.eyesDistance();

                    Log.d("currentx", currentx + "");
                    Log.d("currenty", currenty + "");
                    Log.d("betweeneyes", betweeneyes + "");
                    Log.d("EULER", "EULER_X: " + EULER_X + "EULER_Y: " + EULER_Y + "EULER_Z: " + EULER_Z);

                    Log.i("Face", i + " " + getFace.confidence() + " "
                            + getFace.eyesDistance() + " " + "Pose: ("
                            + getFace.pose(FaceDetector.Face.EULER_X) + ","
                            + getFace.pose(FaceDetector.Face.EULER_Y) + ","
                            + getFace.pose(FaceDetector.Face.EULER_Z) + ")"
                            + "Eyes Midpoint: (" + eyesMidPts[i].x + ","
                            + eyesMidPts[i].y + ")");
                }
            } catch (Exception e) {
                if (DEBUG)
                    Log.e("Face", i + " is null");
            }




        }

Answer 1

粗略的谷歌搜索显示了大约 10 个不同的帖子——有些甚至是 on StackOverflow ——有同样问题的人。你找到这些了吗？看起来它可能是一个错误。我建议你报告给android bug tracker .

编辑:您应该绝对提交错误。看看人脸检测源码:this source file表明 Android 永远不会将这些设置为 0 以外的任何值。

在此更改之前，还有其他适用于 Android 的 CV 选项。查看OpenCV for Android ，现已得到团队的正式支持。