我試圖在this文章後的C++中實現SIFTRoot。 特別是: # apply the Hellinger kernel by first L1-normalizing and taking the
# square-root
descs /= (descs.sum(axis=1, keepdims=True) + eps)
descs = np.sqrt(desc
我有兩個向量在MATLAB,vectorA和vectorB - 無論是1280元的長度相等。我想將矢量分成長度爲256的子矢量,給出5個子矢量。 一旦我有切片,比如sliceA和sliceB,我需要在兩個切片上執行norm。 此刻,我有以下代碼: for i = 1:N
sliceA = vectorA(i:round(i*1280/N);
sliceB = vectorB(i
我生成(X,Y,Z)座標集合中,如下所示: this.facePoints3D = frame.Get3DShape();
foreach(Vector3DF vector in facePoints3D) //vector has 121 points
{
float zvect = vector.Z //collect z-points which is made of 1