Some (Types.Ellipse(float32 cx, float32 cy, float32 majorAxis, float32 minorAxis, float32 phi'))
-
-let private vectorRotation (p1x: float32) (p1y: float32) (v1x: float32) (v1y: float32) (px: float32) (py: float32) : float32 =
- if p1y > py
+let inline private vectorRotation (px: float32) (py: float32) (vx: float32) (vy: float32) (p0x: float32) (p0y: float32) : float32 =
+ if py > p0y
then
- if v1x > 0.f then -1.f else 1.f
- elif p1y < py
+ if vx > 0.f then -1.f else 1.f
+ elif py < p0y
then
- if v1x < 0.f then -1.f else 1.f
- elif p1x > px
+ if vx < 0.f then -1.f else 1.f
+ elif px > p0x
then
- if v1y < 0.f then -1.f else 1.f
+ if vy < 0.f then -1.f else 1.f
else // p1x < px
- if v1y > 0.f then -1.f else 1.f
+ if vy > 0.f then -1.f else 1.f
let private areVectorsValid (p1x: float32) (p1y: float32) (p2x: float32) (p2y: float32) (v1x: float32) (v1y: float32) (v2x: float32) (v2y: float32) : (float32 * float32) option =
let m1 = -v1x / v1y
let b1 = -m1 * p1x + p1y
let b2 = -m2 * p2x + p2y
- let px = -((b1 - b2) / (m1 - m2))
- let py = -((m2 * b1 - m1 * b2) / (m1 - m2))
+ let p0x = -(b1 - b2) / (m1 - m2)
+ let p0y = -(m2 * b1 - m1 * b2) / (m1 - m2)
- let rot1 = vectorRotation p1x p1y v1x v1y px py
- let rot2 = vectorRotation p2x p2y v2x v2y px py
+ let rot1 = vectorRotation p1x p1y v1x v1y p0x p0y
+ let rot2 = vectorRotation p2x p2y v2x v2y p0x p0y
if rot1 = rot2
then
None
else
- let alpha1 = atan2 (p1y - py) (p1x - px)
- let alpha2 = atan2 (p2y - py) (p2x - px)
+ let alpha1 =
+ let alpha1' = atan2 (p1y - p0y) (p1x - p0x)
+ if alpha1' < 0.f then 2.f * PI + alpha1' else alpha1'
- let alpha1' = if alpha1 < 0.f then 2.f * PI + alpha1 else alpha1
- let alpha2' = if alpha2 < 0.f then 2.f * PI + alpha2 else alpha2
+ let alpha2 =
+ let alpha2' = atan2 (p2y - p0y) (p2x - p0x)
+ if alpha2' < 0.f then 2.f * PI + alpha2' else alpha2'
- let diff = rot1 * alpha1' + rot2 * alpha2'
+ let diff = rot1 * alpha1 + rot2 * alpha2
if diff > PI || (diff < 0.f && diff > -PI)
then
match areVectorsValid (float32 p1xf) (float32 p1yf) (float32 p2xf) (float32 p2yf) -xDirData.[p1.Y, p1.X] -yDirData.[p1.Y, p1.X] -xDirData.[p2.Y, p2.X] -yDirData.[p2.Y, p2.X] with
| Some (m1, m2) ->
match ellipse p1xf p1yf (float m1) p2xf p2yf (float m2) p3xf p3yf with
- | Some e when e.Cx > 0.f && e.Cx < w_f - 1.f && e.Cy > 0.f && e.Cy < h_f - 1.f &&
+ | Some e when e.Cx > 0.f && e.Cx < w_f - 1.f && e.Cy > 0.f && e.Cy < h_f - 1.f &&
e.A >= r1 - radiusTolerance && e.A <= r2 + radiusTolerance && e.B >= r1 - radiusTolerance && e.B <= r2 + radiusTolerance ->
nbOfValidPicks <- nbOfValidPicks - 1
ellipses.Add e
open Utils
// All ellipses with a score below this are removed.
-let matchingScoreThresholdPerRadiusUnit = 0.025f // For a radius of 1.
+let matchingScoreThresholdPerRadiusUnit = 0.07f // For a radius of 1. // 0.25
let matchingScorePower = 20.f
let windowSizeRadiusFactor = 1.f / 2.f
-let minimumDistanceFromCenterRadiusFactor = 1.f / 4.f
+let minimumDistanceFromCenterRadiusFactor = 1.f / 3.f
type private EllipseScoreFlaggedKd (matchingScore: float32, e: Ellipse) =
let mutable matchingScore = matchingScore