About OSD bbox display error

[lcd110]

When using YOLO26L.pt, the drawn images are sometimes tilted.

[lcd110]

[lcd110]

The image below is normal, and it is also what I expect the drawn images to remain—untilted at all times.

[BangDoon]

I fixed this by initializing the newly used rotation_angle field in NvDsInferParseObjectInfo.

In DeepStream 9.0, rotation_angle needs to be set explicitly in the custom parser.
I added the following line in convertBBox() inside nvdsinfer_custom_impl_Yolo/nvdsparsebbox_Yolo.cpp:

static NvDsInferParseObjectInfo
convertBBox(const float& bx1, const float& by1,
            const float& bx2, const float& by2,
            const uint& netW, const uint& netH)
{
    NvDsInferParseObjectInfo b;

    float x1 = bx1;
    float y1 = by1;
    float x2 = bx2;
    float y2 = by2;

    x1 = clamp(x1, 0, netW);
    y1 = clamp(y1, 0, netH);
    x2 = clamp(x2, 0, netW);
    y2 = clamp(y2, 0, netH);

    b.left = x1;
    b.width = clamp(x2 - x1, 0, netW);
    b.top = y1;
    b.height = clamp(y2 - y1, 0, netH);

    b.rotation_angle = 0.0f;  ## add this

    return b;
}

[bluelina]

The rotation_angle parameter does not exist in deepstream versions 8.0 and below. If I include code to directly initialize the parameter, won't a build error occur in lower versions?

Wouldn't initializing it when creating NvDsInferParseObjectInfo be a better approach for backward compatibility?

static NvDsInferParseObjectInfo
convertBBox(const float& bx1, const float& by1, const float& bx2, const float& by2, const uint& netW, const uint& netH)
{
NvDsInferParseObjectInfo b{};